| Year |
Citation |
Score |
| 2023 |
Yokoyama T, Wadhwa M, Iizuka T, Rai V, Gautam I, Hibiya Y, Masuda Y, Haba MK, Fukai R, Hines R, Phelan N, Abe Y, Aléon J, Alexander CMO, Amari S, ... ... Walker RJ, et al. Water circulation in Ryugu asteroid affected the distribution of nucleosynthetic isotope anomalies in returned sample. Science Advances. 9: eadi7048. PMID 37939187 DOI: 10.1126/sciadv.adi7048 |
0.322 |
|
| 2022 |
Kawasaki N, Nagashima K, Sakamoto N, Matsumoto T, Bajo KI, Wada S, Igami Y, Miyake A, Noguchi T, Yamamoto D, Russell SS, Abe Y, Aléon J, Alexander CMO, Amari S, ... ... Walker RJ, et al. Oxygen isotopes of anhydrous primary minerals show kinship between asteroid Ryugu and comet 81P/Wild2. Science Advances. 8: eade2067. PMID 36525483 DOI: 10.1126/sciadv.ade2067 |
0.315 |
|
| 2021 |
Nakanishi N, Giuliani A, Carlson RW, Horan MF, Woodhead J, Pearson DG, Walker RJ. Tungsten-182 evidence for an ancient kimberlite source. Proceedings of the National Academy of Sciences of the United States of America. 118. PMID 34074760 DOI: 10.1073/pnas.2020680118 |
0.396 |
|
| 2021 |
Peters BJ, Mundl‐Petermeier A, Carlson RW, Walker RJ, Day JMD. Combined Lithophile‐Siderophile Isotopic Constraints on Hadean Processes Preserved in Ocean Island Basalt Sources Geochemistry, Geophysics, Geosystems. 22. DOI: 10.1029/2020GC009479 |
0.301 |
|
| 2020 |
Hilton CD, Ash RD, Piccoli PM, Kring DA, McCoy TJ, Walker RJ. Origin and Age of Metal Veins in Canyon Diablo Graphite Nodules. Meteoritics & Planetary Science. 55: 771-780. PMID 33273799 DOI: 10.1111/Maps.13464 |
0.342 |
|
| 2020 |
Tornabene HA, Hilton CD, Bermingham KR, Ash RD, Walker RJ. Genetics, Age and Crystallization History of Group IIC Iron Meteorites. Geochimica Et Cosmochimica Acta. 288: 36-50. PMID 33273746 DOI: 10.1016/J.Gca.2020.07.036 |
0.436 |
|
| 2020 |
Hilton CD, Walker RJ. New implications for the origin of the IAB main group iron meteorites and the isotopic evolution of the noncarbonaceous (NC) reservoir. Earth and Planetary Science Letters. 540. PMID 33273744 DOI: 10.1016/J.Epsl.2020.116248 |
0.457 |
|
| 2020 |
Marchi S, Walker RJ, Canup RM. A compositionally heterogeneous martian mantle due to late accretion. Science Advances. 6: eaay2338. PMID 32095525 DOI: 10.1126/Sciadv.Aay2338 |
0.469 |
|
| 2020 |
Reimink JR, Mundl‐Petermeier A, Carlson RW, Shirey SB, Walker RJ, Pearson DG. Tungsten Isotope Composition of Archean Crustal Reservoirs and Implications for Terrestrial μ 182 W Evolution Geochemistry Geophysics Geosystems. 21. DOI: 10.1029/2020Gc009155 |
0.676 |
|
| 2020 |
Mundl-Petermeier A, Walker R, Fischer R, Lekic V, Jackson M, Kurz M. Anomalous 182W in high 3He/4He ocean island basalts: Fingerprints of Earth’s core? Geochimica Et Cosmochimica Acta. 271: 194-211. DOI: 10.1016/J.Gca.2019.12.020 |
0.53 |
|
| 2020 |
Puchtel IS, Mundl-Petermeier A, Horan M, Hanski EJ, Blichert-Toft J, Walker RJ. Ultra-depleted 2.05 Ga komatiites of Finnish Lapland: Products of grainy late accretion or core-mantle interaction? Chemical Geology. 554: 119801. DOI: 10.1016/J.Chemgeo.2020.119801 |
0.525 |
|
| 2019 |
Archer GJ, Walker RJ, Irving AJ. Highly siderophile element and Re-Os isotopic systematics of ungrouped achondrite Northwest Africa 7325: Evidence for complex planetary processes. Geochimica Et Cosmochimica Acta. 54: 1042-1050. PMID 34316080 DOI: 10.1111/maps.13261 |
0.408 |
|
| 2019 |
Hilton CD, Bermingham KR, Walker RJ, McCoy TJ. Genetics, crystallization sequence, and age of the South Byron Trio iron meteorites: New insights to carbonaceous chondrite (CC) type parent bodies. Geochimica Et Cosmochimica Acta. 251: 217-228. PMID 33273745 DOI: 10.1016/J.Gca.2019.02.035 |
0.401 |
|
| 2019 |
Hibiya Y, Archer GJ, Tanaka R, Sanborn ME, Sato Y, Iizuka T, Ozawa K, Walker RJ, Yamaguchi A, Yin QZ, Nakamura T, Irving AJ. The origin of the unique achondrite Northwest Africa 6704: Constraints from petrology, chemistry and Re-Os, O and Ti isotope systematics. Geochimica Et Cosmochimica Acta. 245: 597-627. PMID 30983599 DOI: 10.1016/J.Gca.2018.04.031 |
0.533 |
|
| 2019 |
Archer GJ, Walker RJ, Tino J, Blackburn T, Kruijer TS, Hellmann JL. Siderophile element constraints on the thermal history of the H chondrite parent body. Geochimica Et Cosmochimica Acta. 245: 556-576. PMID 30846885 DOI: 10.1016/J.Gca.2018.11.012 |
0.385 |
|
| 2019 |
Wu F, Yang J, Xu Y, Wilde SA, Walker RJ. Destruction of the North China Craton in the Mesozoic Annual Review of Earth and Planetary Sciences. 47: 173-195. DOI: 10.1146/Annurev-Earth-053018-060342 |
0.335 |
|
| 2019 |
Archer GJ, Walker RJ, Irving AJ. Highly siderophile element and 187Re‐187Os isotopic systematics of ungrouped achondrite Northwest Africa 7325: Evidence for complex planetary processes Meteoritics & Planetary Science. 54: 1042-1050. DOI: 10.1111/Maps.13261 |
0.389 |
|
| 2019 |
Peters BJ, Mundl‐Petermeier A, Horan MF, Carlson RW, Walker RJ. Chemical Separation of Tungsten and Other Trace Elements for TIMS Isotope Ratio Measurements Using Organic Acids Geostandards and Geoanalytical Research. 43: 245-259. DOI: 10.1111/Ggr.12259 |
0.356 |
|
| 2019 |
Ngonge ED, Hollanda MHBMd, Puchtel IS, Walker RJ, Archanjo CJ. Characteristics of the lithospheric mantle beneath northeastern Borborema Province, Brazil: Re-Os and HSE constraints on peridotite xenoliths Journal of South American Earth Sciences. 96: 102371. DOI: 10.1016/J.Jsames.2019.102371 |
0.483 |
|
| 2019 |
Mundl-Petermeier A, Walker RJ, Jackson MG, Blichert-Toft J, Kurz MD, Halldórsson SA. Temporal evolution of primordial tungsten-182 and 3He/4He signatures in the Iceland mantle plume Chemical Geology. 525: 245-259. DOI: 10.1016/J.Chemgeo.2019.07.026 |
0.531 |
|
| 2019 |
Gorman JK, Penniston-Dorland SC, Marschall HR, Walker RJ. The roles of mechanical mixing and fluid transport in the formation of reaction zones in subduction-related mélange: Evidence from highly siderophile elements Chemical Geology. 525: 96-111. DOI: 10.1016/J.Chemgeo.2019.07.004 |
0.421 |
|
| 2018 |
Marchi S, Canup RM, Walker RJ. Heterogeneous delivery of silicate and metal to the Earth by large planetesimals. Nature Geoscience. 11: 77-81. PMID 30984285 DOI: 10.1038/S41561-017-0022-3 |
0.428 |
|
| 2018 |
Walker RJ, Yin QZ, Heck PR. Rapid effects of terrestrial alteration on highly siderophile elements in the Sutter's Mill meteorite. Meteoritics & Planetary Science. 53: 1500-1506. PMID 30983859 DOI: 10.1111/Maps.13102 |
0.447 |
|
| 2018 |
Bermingham KR, Worsham EA, Walker RJ. New insights into Mo and Ru isotope variation in the nebula and terrestrial planet accretionary genetics. Earth and Planetary Science Letters. 487: 221-229. PMID 30880823 DOI: 10.1016/J.Epsl.2018.01.017 |
0.494 |
|
| 2018 |
Cook DL, Smith T, Leya I, Hilton CD, Walker RJ, Schönbächler M. Excess W in IIAB iron meteorites: Identification of cosmogenic, radiogenic, and nucleosynthetic components. Earth and Planetary Science Letters. 503: 29-36. PMID 30846884 DOI: 10.1016/J.Epsl.2018.09.021 |
0.466 |
|
| 2018 |
Puchtel IS, Blichert-Toft J, Touboul M, Walker RJ. 182W and HSE constraints from 2.7 Ga komatiites on the heterogeneous nature of the Archean mantle Geochimica Et Cosmochimica Acta. 228: 1-26. DOI: 10.1016/J.Gca.2018.02.030 |
0.513 |
|
| 2018 |
O'Driscoll B, Walker RJ, Clay PL, Day JMD, Ash RD, Daly JS. Length-scales of chemical and isotopic heterogeneity in the mantle section of the Shetland Ophiolite Complex, Scotland Earth and Planetary Science Letters. 488: 144-154. DOI: 10.1016/J.Epsl.2018.02.020 |
0.536 |
|
| 2018 |
Horan MF, Carlson R, Walker RJ, Jackson M, Garçon M, Norman M. Tracking Hadean processes in modern basalts with 142-Neodymium Earth and Planetary Science Letters. 484: 184-191. DOI: 10.1016/J.Epsl.2017.12.017 |
0.467 |
|
| 2018 |
Mundl A, Walker RJ, Reimink JR, Rudnick RL, Gaschnig RM. Tungsten-182 in the upper continental crust: Evidence from glacial diamictites Chemical Geology. 494: 144-152. DOI: 10.1016/J.Chemgeo.2018.07.036 |
0.506 |
|
| 2017 |
Bermingham KR, Walker RJ. The ruthenium isotopic composition of the oceanic mantle. Earth and Planetary Science Letters. 474: 466-473. PMID 30956285 DOI: 10.1016/J.Epsl.2017.06.052 |
0.54 |
|
| 2017 |
Kleine T, Walker RJ. Tungsten Isotopes in Planets. Annual Review of Earth and Planetary Sciences. 45: 389-417. PMID 30842690 DOI: 10.1146/Annurev-Earth-063016-020037 |
0.439 |
|
| 2017 |
Archer GJ, Mundl A, Walker RJ, Worsham EA, Bermingham KR. High-precision analysis of W/W and W/W by negative thermal ionization mass spectrometry: Per-integration oxide corrections using measured O/O. International Journal of Mass Spectrometry. 414: 80-86. PMID 30713466 DOI: 10.1016/J.Ijms.2017.01.002 |
0.359 |
|
| 2017 |
Worsham EA, Bermingham KR, Walker RJ. Characterizing cosmochemical materials with genetic affinities to the Earth: Genetic and chronological diversity within the IAB iron meteorite complex. Earth and Planetary Science Letters. 467: 157-166. PMID 30713346 DOI: 10.1016/J.Epsl.2017.02.044 |
0.455 |
|
| 2017 |
Mundl A, Touboul M, Jackson MG, Day JM, Kurz MD, Lekic V, Helz RT, Walker RJ. Tungsten-182 heterogeneity in modern ocean island basalts. Science (New York, N.Y.). 356: 66-69. PMID 28386009 DOI: 10.1126/Science.Aal4179 |
0.459 |
|
| 2017 |
Day JMD, O'Driscoll B, Strachan RA, Daly JS, Walker RJ. Identification of mantle peridotite as a possible Iapetan ophiolite sliver in south Shetland, Scottish Caledonides Journal of the Geological Society. 174: 88-92. DOI: 10.1144/Jgs2016-074 |
0.435 |
|
| 2017 |
Day JMD, Walker RJ, Warren JM. 186 Os– 187 Os and highly siderophile element abundance systematics of the mantle revealed by abyssal peridotites and Os-rich alloys Geochimica Et Cosmochimica Acta. 200: 232-254. DOI: 10.1016/J.Gca.2016.12.013 |
0.519 |
|
| 2016 |
Worsham EA, Bermingham KR, Walker RJ. Siderophile element systematics of IAB complex iron meteorites: New insights into the formation of an enigmatic group. Geochimica Et Cosmochimica Acta. 188: 261-283. PMID 30983598 DOI: 10.1016/J.Gca.2016.05.019 |
0.405 |
|
| 2016 |
Day JMD, Brandon AD, Walker RJ. Highly Siderophile Elements in Earth, Mars, the Moon, and Asteroids. Reviews in Mineralogy and Geochemistry. 81: 161-238. PMID 30853859 DOI: 10.2138/Rmg.2016.81.04 |
0.388 |
|
| 2016 |
Worsham EA, Walker RJ, Bermingham KR. High-precision molybdenum isotope analysis by negative thermal ionization mass spectrometry. International Journal of Mass Spectrometry. 407: 51-61. PMID 30842700 DOI: 10.1016/J.Ijms.2016.06.005 |
0.386 |
|
| 2016 |
Walker RJ. Siderophile Elements in Tracing Planetary Formation and Evolution. Geochemical Perspectives. 5: 1-145. PMID 30775285 DOI: 10.7185/Geochempersp.5.1 |
0.491 |
|
| 2016 |
Yokoyama T, Walker RJ. Nucleosynthetic Isotope Variations of Siderophile and Chalcophile Elements in the Solar System. Reviews in Mineralogy and Geochemistry. 81: 107-160. PMID 30774562 DOI: 10.2138/Rmg.2016.81.03 |
0.455 |
|
| 2016 |
Bermingham KR, Walker RJ, Worsham EA. Refinement of high precision Ru isotope analysis using negative thermal ionization mass spectrometry International Journal of Mass Spectrometry. 403: 15-26. PMID 30713465 DOI: 10.1016/J.Ijms.2016.02.003 |
0.44 |
|
| 2016 |
Rizo H, Walker RJ, Carlson RW, Horan MF, Mukhopadhyay S, Manthos V, Francis D, Jackson MG. Preservation of Earth-forming events in the tungsten isotopic composition of modern flood basalts. Science (New York, N.Y.). 352: 809-12. PMID 27174983 DOI: 10.1126/Science.Aad8563 |
0.511 |
|
| 2016 |
Trinquier A, Touboul M, Walker RJ. High-Precision Tungsten Isotopic Analysis by Multicollection Negative Thermal Ionization Mass Spectrometry Based on Simultaneous Measurement of W and (18)O/(16)O Isotope Ratios for Accurate Fractionation Correction. Analytical Chemistry. 88: 1542-6. PMID 26751903 DOI: 10.1021/Acs.Analchem.5B04006 |
0.439 |
|
| 2016 |
Trinquier A, Touboul M, Walker RJ. High-Precision Tungsten Isotopic Analysis by Multicollection Negative Thermal Ionization Mass Spectrometry Based on Simultaneous Measurement of W and 18O/16O Isotope Ratios for Accurate Fractionation Correction Analytical Chemistry. 88: 1542-1546. DOI: 10.1021/acs.analchem.5b04006 |
0.31 |
|
| 2016 |
Chen K, Walker RJ, Rudnick RL, Gao S, Gaschnig RM, Puchtel IS, Tang M, Hu ZC. Platinum-group element abundances and Re–Os isotopic systematics of the upper continental crust through time: Evidence from glacial diamictites Geochimica Et Cosmochimica Acta. 191: 1-16. DOI: 10.1016/J.Gca.2016.07.004 |
0.455 |
|
| 2016 |
Puchtel IS, Touboul M, Blichert-Toft J, Walker RJ, Brandon AD, Nicklas RW, Kulikov VS, Samsonov AV. Lithophile and siderophile element systematics of Earth's mantle at the Archean-Proterozoic boundary: Evidence from 2.4 Ga komatiites Geochimica Et Cosmochimica Acta. 180: 227-255. DOI: 10.1016/J.Gca.2016.02.027 |
0.448 |
|
| 2016 |
Rizo H, Walker RJ, Carlson RW, Touboul M, Horan MF, Puchtel IS, Boyet M, Rosing MT. Early Earth differentiation investigated through 142Nd, 182W, and highly siderophile element abundances in samples from Isua, Greenland Geochimica Et Cosmochimica Acta. 175: 319-336. DOI: 10.1016/J.Gca.2015.12.007 |
0.539 |
|
| 2016 |
Liu J, Touboul M, Ishikawa A, Walker RJ, Graham Pearson D. Widespread tungsten isotope anomalies and W mobility in crustal and mantle rocks of the Eoarchean Saglek Block, northern Labrador, Canada: Implications for early Earth processes and W recycling Earth and Planetary Science Letters. 448: 13-23. DOI: 10.1016/J.Epsl.2016.05.001 |
0.535 |
|
| 2016 |
Puchtel IS, Blichert-Toft J, Touboul M, Horan MF, Walker RJ. The coupled 182W‐142Nd record of early terrestrial mantle differentiation Geochemistry Geophysics Geosystems. 17: 2168-2193. DOI: 10.1002/2016Gc006324 |
0.489 |
|
| 2015 |
Liu J, Sharp M, Ash RD, Kring DA, Walker RJ. Diverse impactors in Apollo 15 and 16 impact melt rocks: evidence from osmium isotopes and highly siderophile elements. Geochimica Et Cosmochimica Acta. 155: 122-153. PMID 34531613 DOI: 10.1016/j.gca.2015.02.004 |
0.461 |
|
| 2015 |
Day JMD, Walker RJ. Highly siderophile element depletion in the Moon. Earth and Planetary Science Letters. 423: 114-124. PMID 34465923 DOI: 10.1016/j.epsl.2015.05.001 |
0.442 |
|
| 2015 |
Touboul M, Puchtel IS, Walker RJ. Tungsten isotopic evidence for disproportional late accretion to the Earth and Moon. Nature. 520: 530-3. PMID 25855299 DOI: 10.1038/Nature14355 |
0.535 |
|
| 2015 |
Sharp M, Righter K, Walker RJ. Estimation of trace element concentrations in the lunar magma ocean using mineral- and metal-silicate melt partition coefficients Meteoritics & Planetary Science. 50: 733-758. DOI: 10.1111/Maps.12396 |
0.401 |
|
| 2015 |
Day JMD, Waters CL, Schaefer BF, Walker RJ, Turner S. Use of Hydrofluoric Acid Desilicification in the Determination of Highly Siderophile Element Abundances and Re-Pt-Os Isotope Systematics in Mafic-Ultramafic Rocks Geostandards and Geoanalytical Research. DOI: 10.1111/J.1751-908X.2015.00367.X |
0.339 |
|
| 2015 |
O'Driscoll B, Walker RJ, Day JMD, Ash RD, Stephen Daly J. Generations of melt extraction, melt-rock interaction and high-temperature metasomatism preserved in peridotites of the ~497 Ma Leka Ophiolite Complex, Norway Journal of Petrology. 56: 1797-1828. DOI: 10.1093/Petrology/Egv055 |
0.547 |
|
| 2015 |
Liu J, Rudnick RL, Walker RJ, Xu Wl, Gao S, Wu Fy. Big insights from tiny peridotites: Evidence for persistence of Precambrian lithosphere beneath the eastern North China Craton Tectonophysics. 650: 104-112. DOI: 10.1016/J.Tecto.2014.05.009 |
0.494 |
|
| 2015 |
Liu J, Sharp M, Ash RD, Kring DA, Walker RJ. Diverse impactors in Apollo 15 and 16 impact melt rocks: Evidence from osmium isotopes and highly siderophile elements Geochimica Et Cosmochimica Acta. 155: 122-153. DOI: 10.1016/J.Gca.2015.02.004 |
0.549 |
|
| 2015 |
Day JMD, Walker RJ. Highly siderophile element depletion in the Moon Earth and Planetary Science Letters. 423: 114-124. DOI: 10.1016/J.Epsl.2015.05.001 |
0.528 |
|
| 2015 |
Walker RJ, Bermingham K, Liu J, Puchtel IS, Touboul M, Worsham EA. In search of late-stage planetary building blocks Chemical Geology. 411: 125-142. DOI: 10.1016/J.Chemgeo.2015.06.028 |
0.483 |
|
| 2014 |
Antonelli MA, Kim ST, Peters M, Labidi J, Cartigny P, Walker RJ, Lyons JR, Hoek J, Farquhar J. Early inner solar system origin for anomalous sulfur isotopes in differentiated protoplanets. Proceedings of the National Academy of Sciences of the United States of America. 111: 17749-54. PMID 25453079 DOI: 10.1073/Pnas.1418907111 |
0.428 |
|
| 2014 |
Walker RJ. Siderophile element constraints on the origin of the Moon. Philosophical Transactions. Series a, Mathematical, Physical, and Engineering Sciences. 372: 20130258. PMID 25114313 DOI: 10.1098/Rsta.2013.0258 |
0.538 |
|
| 2014 |
Kruijer TS, Touboul M, Fischer-Gödde M, Bermingham KR, Walker RJ, Kleine T. Protracted core formation and rapid accretion of protoplanets. Science (New York, N.Y.). 344: 1150-4. PMID 24904163 DOI: 10.1126/Science.1251766 |
0.375 |
|
| 2014 |
González-Jiménez JM, Barra F, Walker RJ, Reich M, Gervilla F. Geodynamic implications of ophiolitic chromitites in the la Cabaña ultramafic bodies, Central Chile International Geology Review. 56: 1466-1483. DOI: 10.1080/00206814.2014.947334 |
0.447 |
|
| 2014 |
Sharp M, Gerasimenko I, Loudin LC, Liu J, James OB, Puchtel IS, Walker RJ. Characterization of the dominant impactor signature for Apollo 17 impact melt rocks Geochimica Et Cosmochimica Acta. 131: 62-80. DOI: 10.1016/J.Gca.2014.01.014 |
0.463 |
|
| 2014 |
Archer GJ, Ash RD, Bullock ES, Walker RJ. Highly siderophile elements and 187Re–187Os isotopic systematics of the Allende meteorite: Evidence for primary nebular processes and late-stage alteration Geochimica Et Cosmochimica Acta. 131: 402-414. DOI: 10.1016/J.Gca.2013.12.032 |
0.411 |
|
| 2014 |
Puchtel IS, Walker RJ, Touboul M, Nisbet EG, Byerly GR. Insights into early Earth from the Pt–Re–Os isotope and highly siderophile element abundance systematics of Barberton komatiites Geochimica Et Cosmochimica Acta. 125: 394-413. DOI: 10.1016/J.Gca.2013.10.013 |
0.482 |
|
| 2014 |
Brown SM, Elkins-Tanton LT, Walker RJ. Effects of magma ocean crystallization and overturn on the development of 142Nd and 182W isotopic heterogeneities in the primordial mantle Earth and Planetary Science Letters. 408: 319-330. DOI: 10.1016/J.Epsl.2014.10.025 |
0.491 |
|
| 2014 |
Penniston-Dorland SC, Gorman JK, Bebout GE, Piccoli PM, Walker RJ. Reaction rind formation in the Catalina Schist: Deciphering a history of mechanical mixing and metasomatic alteration Chemical Geology. 384: 47-61. DOI: 10.1016/J.Chemgeo.2014.06.024 |
0.466 |
|
| 2014 |
Touboul M, Liu J, O'Neil J, Puchtel IS, Walker RJ. New insights into the Hadean mantle revealed by 182W and highly siderophile element abundances of supracrustal rocks from the Nuvvuagittuq Greenstone Belt, Quebec, Canada Chemical Geology. 383: 63-75. DOI: 10.1016/J.Chemgeo.2014.05.030 |
0.545 |
|
| 2013 |
McCoy-West A, Bennett V, Puchtel IS, Walker RJ. Extreme persistence of cratonic lithosphere in the southwest Pacific: Paleoproterozoic Os isotopic signatures in Zealandia Geology. 41: 231-234. DOI: 10.1130/G33626.1 |
0.406 |
|
| 2013 |
Geboy NJ, Kaufman AJ, Walker RJ, Misi A, de Oliviera TF, Miller KE, Azmy K, Kendall B, Poulton SW. Re-Os age constraints and new observations of Proterozoic glacial deposits in the Vazante Group, Brazil Precambrian Research. 238: 199-213. DOI: 10.1016/J.Precamres.2013.10.010 |
0.396 |
|
| 2013 |
Puchtel IS, Blichert-Toft J, Touboul M, Walker RJ, Byerly GR, Nisbet EG, Anhaeusser CR. Insights into early Earth from Barberton komatiites: Evidence from lithophile isotope and trace element systematics Geochimica Et Cosmochimica Acta. 108: 63-90. DOI: 10.1016/J.Gca.2013.01.016 |
0.511 |
|
| 2013 |
Ackerman L, Pitcher L, Strnad L, Puchtel IS, Jelínek E, Walker RJ, Rohovec J. Highly siderophile element geochemistry of peridotites and pyroxenites from Horní Bory, Bohemian Massif: Implications for HSE behaviour in subduction-related upper mantle Geochimica Et Cosmochimica Acta. 100: 158-175. DOI: 10.1016/J.Gca.2012.09.050 |
0.502 |
|
| 2013 |
Arevalo R, McDonough WF, Stracke A, Willbold M, Ireland TJ, Walker RJ. Simplified mantle architecture and distribution of radiogenic power Geochemistry, Geophysics, Geosystems. 14: 2265-2285. DOI: 10.1002/Ggge.20152 |
0.421 |
|
| 2012 |
Jenniskens P, Fries MD, Yin QZ, Zolensky M, Krot AN, Sandford SA, Sears D, Beauford R, Ebel DS, Friedrich JM, Nagashima K, Wimpenny J, Yamakawa A, Nishiizumi K, Hamajima Y, ... ... Walker RJ, et al. Radar-enabled recovery of the Sutter's Mill meteorite, a carbonaceous chondrite regolith breccia. Science (New York, N.Y.). 338: 1583-7. PMID 23258889 DOI: 10.1126/Science.1227163 |
0.352 |
|
| 2012 |
Touboul M, Puchtel IS, Walker RJ. 182W evidence for long-term preservation of early mantle differentiation products. Science (New York, N.Y.). 335: 1065-9. PMID 22345398 DOI: 10.1126/Science.1216351 |
0.477 |
|
| 2012 |
Moynier F, Day JMD, Okui W, Yokoyama T, Bouvier A, Walker RJ, Podosek FA. Planetary-scale strontium isotopic heterogeneity and the age of volatile depletion of early solar system materials Astrophysical Journal. 758. DOI: 10.1088/0004-637X/758/1/45 |
0.494 |
|
| 2012 |
Day JMD, Walker RJ, Qin L, Rumble III D. Late accretion as a natural consequence of planetary growth Nature Geoscience. 5: 614-617. DOI: 10.1038/Ngeo1527 |
0.419 |
|
| 2012 |
Touboul M, Walker RJ. High precision tungsten isotope measurement by thermal ionization mass spectrometry International Journal of Mass Spectrometry. 309: 109-117. DOI: 10.1016/J.Ijms.2011.08.033 |
0.468 |
|
| 2012 |
Day JMD, Walker RJ, Ash RD, Liu Y, Rumble D, Irving AJ, Goodrich CA, Tait K, McDonough WF, Taylor LA. Origin of felsic achondrites Graves Nunataks 06128 and 06129, and ultramafic brachinites and brachinite-like achondrites by partial melting of volatile-rich primitive parent bodies Geochimica Et Cosmochimica Acta. 81: 94-128. DOI: 10.1016/J.Gca.2011.12.017 |
0.489 |
|
| 2012 |
Brandon AD, Puchtel IS, Walker RJ, Day JMD, Irving AJ, Taylor LA. Evolution of the martian mantle inferred from the 187Re- 187Os isotope and highly siderophile element abundance systematics of shergottite meteorites Geochimica Et Cosmochimica Acta. 76: 206-235. DOI: 10.1016/J.Gca.2011.09.047 |
0.56 |
|
| 2012 |
Riches AJV, Day JMD, Walker RJ, Simonetti A, Liu Y, Neal CR, Taylor LA. Rhenium-osmium isotope and highly-siderophile-element abundance systematics of angrite meteorites Earth and Planetary Science Letters. 353: 208-218. DOI: 10.1016/J.Epsl.2012.08.006 |
0.519 |
|
| 2012 |
Walker RJ. Evidence for homogeneous distribution of osmium in the protosolar nebula Earth and Planetary Science Letters. 351: 36-44. DOI: 10.1016/J.Epsl.2012.07.026 |
0.479 |
|
| 2012 |
Rocha-Júnior ERV, Puchtel IS, Marques LS, Walker RJ, Machado FB, Nardy AJR, Babinski M, Figueiredo AMG. Re–Os isotope and highly siderophile element systematics of the Paraná continental flood basalts (Brazil) Earth and Planetary Science Letters. 337: 164-173. DOI: 10.1016/J.Epsl.2012.04.050 |
0.584 |
|
| 2012 |
O'Driscoll B, Day JMD, Walker RJ, Daly JS, McDonough WF, Piccoli PM. Chemical heterogeneity in the upper mantle recorded by peridotites and chromitites from the Shetland Ophiolite Complex, Scotland Earth and Planetary Science Letters. 333: 226-237. DOI: 10.1016/J.Epsl.2012.03.035 |
0.561 |
|
| 2012 |
Penniston-Dorland SC, Walker RJ, Pitcher L, Sorensen SS. Mantle-crust interactions in a paleosubduction zone: Evidence from highly siderophile element systematics of eclogite and related rocks Earth and Planetary Science Letters. 319: 295-306. DOI: 10.1016/J.Epsl.2011.11.042 |
0.503 |
|
| 2012 |
Liu J, Carlson RW, Rudnick RL, Walker RJ, Gao S, Wu Fy. Comparative Sr-Nd-Hf-Os-Pb isotope systematics of xenolithic peridotites from Yangyuan, North China Craton: Additional evidence for a Paleoproterozoic age Chemical Geology. 332: 1-14. DOI: 10.1016/J.Chemgeo.2012.09.013 |
0.563 |
|
| 2011 |
Riches AJV, Liu Y, Day JMD, Puchtel IS, Rumble D, McSween HY, Walker RJ, Taylor LA. Petrology and geochemistry of Yamato 984028: A cumulate lherzolitic shergottite with affinities to Y 000027, Y 000047, and Y 000097 Polar Science. 4: 497-514. DOI: 10.1016/J.Polar.2010.04.009 |
0.537 |
|
| 2011 |
Mccoy TJ, Walker RJ, Goldstein JI, Yang J, McDonough WF, Rumble D, Chabot NL, Ash RD, Corrigan CM, Michael JR, Kotula PG. Group IVA irons: New constraints on the crystallization and cooling history of an asteroidal core with a complex history Geochimica Et Cosmochimica Acta. 75: 6821-6843. DOI: 10.1016/J.Gca.2011.09.006 |
0.462 |
|
| 2011 |
Ireland TJ, Walker RJ, Brandon AD. 186Os–187Os systematics of Hawaiian picrites revisited: New insights into Os isotopic variations in ocean island basalts Geochimica Et Cosmochimica Acta. 75: 4456-4475. DOI: 10.1016/J.Gca.2011.05.015 |
0.388 |
|
| 2011 |
Liu J, Rudnick RL, Walker RJ, Gao S, Wu Fy, Piccoli PM, Yuan H, Xu Wl, Xu YG. Mapping lithospheric boundaries using Os isotopes of mantle xenoliths: An example from the North China Craton Geochimica Et Cosmochimica Acta. 75: 3881-3902. DOI: 10.1016/J.Gca.2011.04.018 |
0.47 |
|
| 2011 |
Connolly BD, Puchtel IS, Walker RJ, Arevalo R, Piccoli PM, Byerly G, Robin-Popieul C, Arndt N. Highly siderophile element systematics of the 3.3Ga Weltevreden komatiites, South Africa: Implications for early Earth history Earth and Planetary Science Letters. 311: 253-263. DOI: 10.1016/J.Epsl.2011.09.039 |
0.554 |
|
| 2011 |
Moskovitz NA, Walker RJ. Size of the group IVA iron meteorite core: Constraints from the age and composition of Muonionalusta Earth and Planetary Science Letters. 308: 410-416. DOI: 10.1016/J.Epsl.2011.06.010 |
0.381 |
|
| 2011 |
Yokoyama T, Alexander CMO, Walker RJ. Assessment of nebular versus parent body processes on presolar components present in chondrites: Evidence from osmium isotopes Earth and Planetary Science Letters. 305: 115-123. DOI: 10.1016/J.Epsl.2011.02.046 |
0.38 |
|
| 2011 |
O'Driscoll B, Day JMD, Daly JS, Walker RJ, McDonough WF. Erratum to “Rhenium–osmium isotopes and platinum-group elements in the Rum Layered Suite, Scotland: Implications for Cr-spinel seam formation and the composition of the Iceland mantle anomaly” [Earth and Planetary Science Letters 286 (2009) 41–51] Earth and Planetary Science Letters. 303: 162-162. DOI: 10.1016/J.Epsl.2010.12.046 |
0.401 |
|
| 2010 |
Bottke WF, Walker RJ, Day JM, Nesvorny D, Elkins-Tanton L. Stochastic late accretion to Earth, the Moon, and Mars. Science (New York, N.Y.). 330: 1527-30. PMID 21148387 DOI: 10.1126/Science.1196874 |
0.41 |
|
| 2010 |
Yang JH, O'Reilly S, Walker RJ, Griffin W, Wu FY, Zhang M, Pearson N. Diachronous decratonization of the Sino-Korean craton: Geochemistry of mantle xenoliths from North Korea Geology. 38: 799-802. DOI: 10.1130/G30944.1 |
0.459 |
|
| 2010 |
van Acken D, Becker H, Walker RJ, McDonough WF, Wombacher F, Ash RD, Piccoli PM. Formation of pyroxenite layers in the Totalp ultramafic massif (Swiss Alps) - Insights from highly siderophile elements and Os isotopes Geochimica Et Cosmochimica Acta. 74: 661-683. DOI: 10.1016/J.Gca.2009.10.007 |
0.514 |
|
| 2010 |
Liu J, Rudnick RL, Walker RJ, Gao S, Wu F, Piccoli PM. Processes controlling highly siderophile element fractionations in xenolithic peridotites and their influence on Os isotopes Earth and Planetary Science Letters. 297: 287-297. DOI: 10.1016/J.Epsl.2010.06.030 |
0.531 |
|
| 2010 |
Yokoyama T, Alexander CMO, Walker RJ. Osmium isotope anomalies in chondrites: Results for acid residues and related leachates Earth and Planetary Science Letters. 291: 48-59. DOI: 10.1016/J.Epsl.2009.12.048 |
0.466 |
|
| 2010 |
Day JMD, Walker RJ, James OB, Puchtel IS. Osmium isotope and highly siderophile element systematics of the lunar crust Earth and Planetary Science Letters. 289: 595-605. DOI: 10.1016/J.Epsl.2009.12.001 |
0.508 |
|
| 2010 |
Scheiderich K, Helz GR, Walker RJ. Century-long record of Mo isotopic composition in sediments of a seasonally anoxic estuary (Chesapeake Bay) Earth and Planetary Science Letters. 289: 189-197. DOI: 10.1016/J.Epsl.2009.11.008 |
0.411 |
|
| 2010 |
Scheiderich K, Zerkle AL, Helz GR, Farquhar J, Walker RJ. Molybdenum isotope, multiple sulfur isotope, and redox-sensitive element behavior in early Pleistocene Mediterranean sapropels Chemical Geology. 279: 134-144. DOI: 10.1016/J.Chemgeo.2010.10.015 |
0.442 |
|
| 2010 |
Acken Dv, Becker H, Hammerschmidt K, Walker RJ, Wombacher F. Highly siderophile elements and Sr–Nd isotopes in refertilized mantle peridotites — A case study from the Totalp ultramafic body, Swiss Alps Chemical Geology. 276: 257-268. DOI: 10.1016/J.Chemgeo.2010.06.011 |
0.539 |
|
| 2009 |
Day JM, Ash RD, Liu Y, Bellucci JJ, Rumble D, McDonough WF, Walker RJ, Taylor LA. Early formation of evolved asteroidal crust. Nature. 457: 179-82. PMID 19129845 DOI: 10.1038/Nature07651 |
0.514 |
|
| 2009 |
Chu ZY, Wu FY, Walker RJ, Rudnick RL, Pitcher L, Puchtel IS, Yang YH, Wilde SA. Temporal evolution of the lithospheric mantle beneath the Eastern North China Craton Journal of Petrology. 50: 1857-1898. DOI: 10.1093/Petrology/Egp055 |
0.532 |
|
| 2009 |
Day JMD, Ash RD, Liu Y, Bellucci JJ, Lll DR, McDonough WF, Walker RJ, Taylor LA. Day et al. Reply Nature. 459: E1-E2. DOI: 10.1038/Nature08078 |
0.315 |
|
| 2009 |
Rudnick RL, Walker RJ. Interpreting ages from Re-Os isotopes in peridotites Lithos. 112: 1083-1095. DOI: 10.1016/J.Lithos.2009.04.042 |
0.523 |
|
| 2009 |
Horan MF, Alexander CMO, Walker RJ. Highly siderophile element evidence for early solar system processes in components from ordinary chondrites Geochimica Et Cosmochimica Acta. 73: 6984-6997. DOI: 10.1016/J.Gca.2009.08.022 |
0.427 |
|
| 2009 |
Puchtel IS, Walker RJ, Brandon AD, Nisbet EG. Pt-Re-Os and Sm-Nd isotope and HSE and REE systematics of the 2.7 Ga Belingwe and Abitibi komatiites Geochimica Et Cosmochimica Acta. 73: 6367-6389. DOI: 10.1016/J.Gca.2009.07.022 |
0.408 |
|
| 2009 |
Schulte RF, Schilling M, Anma R, Farquhar J, Horan MF, Komiya T, Piccoli PM, Pitcher L, Walker RJ. Chemical and chronologic complexity in the convecting upper mantle: Evidence from the Taitao ophiolite, southern Chile Geochimica Et Cosmochimica Acta. 73: 5793-5819. DOI: 10.1016/J.Gca.2009.06.015 |
0.587 |
|
| 2009 |
Ireland TJ, Arevalo R, Walker RJ, McDonough WF. Tungsten in Hawaiian picrites: A compositional model for the sources of Hawaiian lavas Geochimica Et Cosmochimica Acta. 73: 4517-4530. DOI: 10.1016/J.Gca.2009.04.016 |
0.47 |
|
| 2009 |
Ackerman L, Walker RJ, Puchtel IS, Pitcher L, Jelínek E, Strnad L. Effects of melt percolation on highly siderophile elements and Os isotopes in subcontinental lithospheric mantle: A study of the upper mantle profile beneath Central Europe Geochimica Et Cosmochimica Acta. 73: 2400-2414. DOI: 10.1016/J.Gca.2009.02.002 |
0.574 |
|
| 2009 |
O'Driscoll B, Day JMD, Daly JS, Walker RJ, McDonough WF. Rhenium-osmium isotopes and platinum-group elements in the Rum Layered Suite, Scotland: Implications for Cr-spinel seam formation and the composition of the Iceland mantle anomaly Earth and Planetary Science Letters. 286: 41-51. DOI: 10.1016/J.Epsl.2009.06.013 |
0.468 |
|
| 2009 |
Yokoyama T, Walker D, Walker RJ. Low osmium solubility in silicate at high pressures and temperatures Earth and Planetary Science Letters. 279: 165-173. DOI: 10.1016/J.Epsl.2008.12.046 |
0.413 |
|
| 2009 |
Puchtel IS, Walker RJ, Anhaeusser CR, Gruau G. Re–Os isotope systematics and HSE abundances of the 3.5 Ga Schapenburg komatiites, South Africa: Hydrous melting or prolonged survival of primordial heterogeneities in the mantle? Chemical Geology. 262: 355-369. DOI: 10.1016/J.Chemgeo.2009.02.006 |
0.559 |
|
| 2009 |
Pitcher L, Helz RT, Walker RJ, Piccoli P. Fractionation of the platinum-group elments and Re during crystallization of basalt in Kilauea Iki Lava Lake, Hawaii Chemical Geology. 260: 196-210. DOI: 10.1016/J.Chemgeo.2008.12.022 |
0.419 |
|
| 2009 |
Ireland TJ, Walker RJ, Garcia MO. Highly siderophile element and 187Os isotope systematics of Hawaiian picrites : Implications for parental melt composition and source heterogeneity Chemical Geology. 260: 112-128. DOI: 10.1016/J.Chemgeo.2008.12.009 |
0.505 |
|
| 2009 |
Walker RJ. Highly siderophile elements in the Earth, Moon and Mars: Update and implications for planetary accretion and differentiation Chemie Der Erde - Geochemistry. 69: 101-125. DOI: 10.1016/J.Chemer.2008.10.001 |
0.487 |
|
| 2008 |
Day JMD, Walker RJ, Hilton DR, Carracedo JC, Hanski E. Constraining deep mantle contributions to Canary Island lavas Geochimica Et Cosmochimica Acta. 72. DOI: 10.1016/J.Gca.2008.05.007 |
0.435 |
|
| 2008 |
Puchtel IS, Walker RJ, James OB, Kring DA. Osmium isotope and highly siderophile element systematics of lunar impact melt breccias: Implications for the late accretion history of the Moon and Earth Geochimica Et Cosmochimica Acta. 72: 3022-3042. DOI: 10.1016/J.Gca.2008.04.006 |
0.521 |
|
| 2008 |
Walker RJ, McDonough WF, Honesto J, Chabot NL, McCoy TJ, Ash RD, Bellucci JJ. Modeling fractional crystallization of group IVB iron meteorites Geochimica Et Cosmochimica Acta. 72: 2198-2216. DOI: 10.1016/J.Gca.2008.01.021 |
0.453 |
|
| 2008 |
Gao S, Rudnick RL, Xu WL, Yuan HL, Liu YS, Walker RJ, Puchtel IS, Liu X, Huang H, Wang XR, Yang J. Recycling deep cratonic lithosphere and generation of intraplate magmatism in the North China Craton Earth and Planetary Science Letters. 270: 41-53. DOI: 10.1016/J.Epsl.2008.03.008 |
0.51 |
|
| 2008 |
Acken Dv, Becker H, Walker RJ. Refertilization of Jurassic oceanic peridotites from the Tethys Ocean — Implications for the Re–Os systematics of the upper mantle Earth and Planetary Science Letters. 268: 171-181. DOI: 10.1016/J.Epsl.2008.01.002 |
0.542 |
|
| 2007 |
Walker RJ, Bohlke JK, McDonough WF, Li J. Effects of mother lode-type gold mineralization on 187Os/188Os and platinum group element concentrations in peridotite: Alleghany District, California Economic Geology. 102: 1079-1089. DOI: 10.2113/Gsecongeo.102.6.1079 |
0.561 |
|
| 2007 |
Puchtel IS, Humayun M, Walker RJ. Os-Pb-Nd isotope and highly siderophile and lithophile trace element systematics of komatiitic rocks from the Volotsk suite, SE Baltic Shield Precambrian Research. 158: 119-137. DOI: 10.1016/J.Precamres.2007.04.004 |
0.548 |
|
| 2007 |
Yokoyama T, Rai VK, Alexander CMOD, Lewis RS, Carlson RW, Shirey SB, Thiemens MH, Walker RJ. Osmium isotope evidence for uniform distribution of s- and r-process components in the early solar system Earth and Planetary Science Letters. 259: 567-580. DOI: 10.1016/J.Epsl.2007.05.017 |
0.676 |
|
| 2007 |
Yuan H, Gao S, Rudnick RL, Jin Z, Liu Y, Puchtel IS, Walker RJ, Yu R. Re-Os evidence for the age and origin of peridotites from the Dabie-Sulu ultrahigh pressure metamorphic belt, China Chemical Geology. 236: 323-338. DOI: 10.1016/J.Chemgeo.2006.10.009 |
0.501 |
|
| 2006 |
Teng FZ, Mcdonough WF, Rudnick RL, Walker RJ, Sirbescu MLC. Lithium isotopic systematics of granites and pegmatites from the Black Hills, South Dakota American Mineralogist. 91: 1488-1498. DOI: 10.2138/Am.2006.2083 |
0.531 |
|
| 2006 |
Lee SR, Horton JW, Walker RJ. Confirmation of a meteoritic component in impact‐melt rocks of the Chesapeake Bay impact structure, Virginia, USA—Evidence from osmium isotopic and PGE systematics Meteoritics & Planetary Science. 41: 819-833. DOI: 10.1111/J.1945-5100.2006.Tb00488.X |
0.52 |
|
| 2006 |
Gangopadhyay A, Walker RJ, Hanski E, Solheid PA. Origin of Paleoproterozoic Komatiites at Jeesiörova, Kittilä Greenstone Complex, Finnish Lapland Journal of Petrology. 47: 773-789. DOI: 10.1093/Petrology/Egi093 |
0.46 |
|
| 2006 |
Wu FY, Walker RJ, Yang YH, Yuan HL, Yang JH. The chemical-temporal evolution of lithospheric mantle underlying the North China Craton Geochimica Et Cosmochimica Acta. 70: 5013-5034. DOI: 10.1016/J.Gca.2006.07.014 |
0.572 |
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| 2006 |
Lee SR, Walker RJ, McCoy TJ, McDonough WF. 187Re–187Os isotopic and highly siderophile element systematics of pallasites Geochimica Et Cosmochimica Acta. 70. DOI: 10.1016/J.Gca.2006.06.708 |
0.395 |
|
| 2006 |
Becker H, Horan MF, Walker RJ, Gao S, Lorand JP, Rudnick RL. Highly siderophile element composition of the Earth's primitive upper mantle: Constraints from new data on peridotite massifs and xenoliths Geochimica Et Cosmochimica Acta. 70: 4528-4550. DOI: 10.1016/J.Gca.2006.06.004 |
0.489 |
|
| 2006 |
Brandon AD, Walker RJ, Puchtel IS. Platinum–osmium isotope evolution of the Earth’s mantle: Constraints from chondrites and Os-rich alloys Geochimica Et Cosmochimica Acta. 70: 2093-2103. DOI: 10.1016/J.Gca.2006.01.005 |
0.458 |
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| 2006 |
Teng FZ, McDonough WF, Rudnick RL, Walker RJ. Diffusion-driven extreme lithium isotopic fractionation in country rocks of the Tin Mountain pegmatite Earth and Planetary Science Letters. 243: 701-710. DOI: 10.1016/J.Epsl.2006.01.036 |
0.388 |
|
| 2006 |
Lee SR, Walker RJ. Re-Os isotope systematics of mantle xenoliths from South Korea: Evidence for complex growth and loss of lithospheric mantle beneath East Asia Chemical Geology. 231: 90-101. DOI: 10.1016/J.Chemgeo.2006.01.003 |
0.468 |
|
| 2006 |
Pietruszka AJ, Walker RJ, Candela PA. Determination of mass-dependent molybdenum isotopic variations by MC-ICP-MS: An evaluation of matrix effects Chemical Geology. 225: 121-136. DOI: 10.1016/J.Chemgeo.2005.09.002 |
0.386 |
|
| 2005 |
Walker RJ, Walker D. Does the core leak Eos, Transactions American Geophysical Union. 86: 237-242. DOI: 10.1029/2005Eo250001 |
0.401 |
|
| 2005 |
Gangopadhyay A, Sproule RA, Walker RJ, Lesher CM. Re-Os systematics of komatiites and komatiitic basalts at Dundonald Beach, Ontario, Canada: Evidence for a complex alteration history and implications of a late-Archean chondritic mantle source Geochimica Et Cosmochimica Acta. 69: 5087-5098. DOI: 10.1016/J.Gca.2005.04.021 |
0.59 |
|
| 2005 |
Lynton SJ, Walker RJ, Candela PA. Lithium isotopes in the system Qz-Ms-fluid: An experimental study Geochimica Et Cosmochimica Acta. 69: 3337-3347. DOI: 10.1016/J.Gca.2005.02.009 |
0.394 |
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| 2005 |
Puchtel IS, Brandon AD, Humayun M, Walker RJ. Evidence for the early differentiation of the core from Pt-Re-Os isotope systematics of 2.8-Ga komatiites Earth and Planetary Science Letters. 237: 118-134. DOI: 10.1016/J.Epsl.2005.04.023 |
0.473 |
|
| 2005 |
Brandon AD, Walker RJ. The debate over core–mantle interaction Earth and Planetary Science Letters. 232: 211-225. DOI: 10.1016/J.Epsl.2005.01.034 |
0.51 |
|
| 2005 |
Walker RJ, Brandon AD, Bird JM, Piccoli PM, McDonough WF, Ash RD. 187Os-186Os systematics of Os-Ir-Ru alloy grains from southwestern Oregon Earth and Planetary Science Letters. 230: 211-226. DOI: 10.1016/J.Epsl.2004.11.009 |
0.425 |
|
| 2005 |
Terakado Y, Walker RJ. Nd, Sr and Pb isotopic and REE geochemical study of some Miocene submarine hydrothermal deposits (Kuroko deposits) in Japan Contributions to Mineralogy and Petrology. 149: 388-399. DOI: 10.1007/S00410-005-0661-Z |
0.554 |
|
| 2004 |
Gelinas A, Kring DA, Zurcher L, Urrutia-Fucugauchi J, Morton O, Walker RJ. Osmium isotope constraints on the proportion of bolide component in Chicxulub impact melt rocks Meteoritics and Planetary Science. 39: 1003-1008. DOI: 10.1111/J.1945-5100.2004.Tb00941.X |
0.47 |
|
| 2004 |
Lazar C, Walker D, Walker RJ. Experimental partitioning of Tc, Mo, Ru, and Re between solid and liquid during crystallization in Fe-Ni-S Geochimica Et Cosmochimica Acta. 68: 643-651. DOI: 10.1016/S0016-7037(03)00449-6 |
0.376 |
|
| 2004 |
Gornostayev SS, Walker RJ, Hanski EJ, Popovchenko SE. Evidence for the emplacement of ca. 3.0 Ga mantle-derived mafic-ultramafic bodies in the Ukrainian Shield Precambrian Research. 132: 349-362. DOI: 10.1016/J.Precamres.2004.03.004 |
0.477 |
|
| 2004 |
Cook DL, Walker RJ, Horan MF, Wasson JT, Morgan JW. Pt-Re-Os systematics of group IIAB and IIIAB iron meteorites Geochimica Et Cosmochimica Acta. 68: 1413-1431. DOI: 10.1016/J.Gca.2003.09.017 |
0.425 |
|
| 2004 |
McDaniel DK, Walker RJ, Hemming SR, Horan MF, Becker H, Grauch RI. Sources of osmium to the modern oceans: New evidence from the 190Pt-186Os system Geochimica Et Cosmochimica Acta. 68: 1243-1252. DOI: 10.1016/J.Gca.2003.08.020 |
0.435 |
|
| 2004 |
Walker RJ, Horan MF, Shearer CK, Papike JJ. Low Abundances of Highly Siderophile Elements in the Lunar Mantle: Evidence for Prolonged Late Accretion Earth and Planetary Science Letters. 224: 399-413. DOI: 10.1016/J.Epsl.2004.05.036 |
0.479 |
|
| 2004 |
Hanski E, Walker RJ, Huhma H, Polyakov GV, Balykin PA, Hoa TT, Phuong NT. Origin of the Permian-Triassic komatiites, northwestern Vietnam Contributions to Mineralogy and Petrology. 147: 453-469. DOI: 10.1007/S00410-004-0567-1 |
0.54 |
|
| 2003 |
Becker H, Walker RJ. Efficient mixing of the solar nebula from uniform Mo isotopic composition of meteorites. Nature. 425: 152-5. PMID 12968172 DOI: 10.1038/Nature01975 |
0.462 |
|
| 2003 |
Arndt N, Czamanske G, Walker R, Chauvel C, Fedorenko V. Geochemistry and Origin of the Intrusive Hosts of the Noril’sk-TalnakhCu-Ni-PGE Sulfide Deposits Economic Geology. 98: 495-515. DOI: 10.2113/Gsecongeo.98.3.495 |
0.525 |
|
| 2003 |
Brandon AD, Walker RJ, Puchtel IS, Becker H, Humayun M, Revillon S. 186 Os^ 187 Os systematics of Gorgona Island komatiites: implications for early growth of the inner core Earth and Planetary Science Letters. 206: 411-426. DOI: 10.1016/S0012-821X(02)01101-9 |
0.467 |
|
| 2003 |
Gangopadhyay A, Walker RJ. Re-Os systematics of the ca. 2.7-Ga komatiites from Alexo, Ontario, Canada Chemical Geology. 196: 147-162. DOI: 10.1016/S0009-2541(02)00411-4 |
0.549 |
|
| 2003 |
Wu F, Walker RJ, Ren X, Sun D, Zhou X. Osmium isotopic constraints on the age of lithospheric mantle beneath northeastern China Chemical Geology. 196: 107-129. DOI: 10.1016/S0009-2541(02)00409-6 |
0.45 |
|
| 2003 |
Becker H, Walker RJ. In search of extant Tc in the early solar system: 98Ru and 99Ru abundances in iron meteorites and chondrites Chemical Geology. 196: 43-56. DOI: 10.1016/S0009-2541(02)00406-0 |
0.427 |
|
| 2003 |
Horan MF, Walker RJ, Morgan JW, Grossman JN, Rubin AE. Highly siderophile elements in chondrites Chemical Geology. 196: 27-42. DOI: 10.1016/S0009-2541(02)00405-9 |
0.514 |
|
| 2002 |
Becker H, Dalpe C, Walker RJ. High-precision Ru isotopic measurements by multi-collector ICP-MS. The Analyst. 127: 775-80. PMID 12146910 DOI: 10.1039/B200596D |
0.322 |
|
| 2002 |
Walker RJ, Horan MF, Morgan JW, Becker H, Grossman JN, Rubin AE. Comparative 187Re-187Os systematics of chondrites: Implications regarding early solar system processes Geochimica Et Cosmochimica Acta. 66: 4187-4201. DOI: 10.1016/S0016-7037(02)01003-7 |
0.442 |
|
| 2002 |
Walker RJ, Nisbet E. 187Os isotopic constraints on Archean mantle dynamics Geochimica Et Cosmochimica Acta. 66: 3317-3325. DOI: 10.1016/S0016-7037(02)00932-8 |
0.544 |
|
| 2002 |
Morgan JW, Walker RJ, Horan MF, Beary ES, Naldrett AJ. 190Pt-186Os and 187Re-187Os systematics of the Sudbury Igneous Complex, Ontario Geochimica Et Cosmochimica Acta. 66: 273-290. DOI: 10.1016/S0016-7037(01)00768-2 |
0.412 |
|
| 2002 |
Walker RJ, Prichard HM, Ishiwatari A, Pimentel M. The osmium isotopic composition of convecting upper mantle deduced from ophiolite chromites Geochimica Et Cosmochimica Acta. 66: 329-345. DOI: 10.1016/S0016-7037(01)00767-0 |
0.544 |
|
| 2001 |
Morgan JW, Walker RJ, Brandon AD, Horan MF. Siderophile elements in Earth's upper mantle and lunar breccias: Data synthesis suggests manifestations of the same late influx Meteoritics & Planetary Science. 36: 1257-1275. DOI: 10.1111/J.1945-5100.2001.Tb01959.X |
0.45 |
|
| 2001 |
Hanski E, Walker RJ, Huhma H, Suominen I. The Os and Nd isotopic systematics of c. 2.44 Ga Akanvaara and Koitelainen mafic layered intrusions in northern Finland Precambrian Research. 109: 73-102. DOI: 10.1016/S0301-9268(01)00142-5 |
0.515 |
|
| 2001 |
Becker H, Morgan JW, Walker RJ, MacPherson GJ, Grossman JN. Rhenium- osmium systematics of calcium-aluminium-rich inclusions in carbonaceous chondrites Geochimica Et Cosmochimica Acta. 65: 3379-3390. DOI: 10.1016/S0016-7037(01)00676-7 |
0.422 |
|
| 2001 |
Meisel T, Walker RJ, Irving AJ, Lorand J. Osmium isotopic compositions of mantle xenoliths: A global perspective Geochimica Et Cosmochimica Acta. 65: 1311-1323. DOI: 10.1016/S0016-7037(00)00566-4 |
0.518 |
|
| 2001 |
Walker RJ, Stone WE. Os isotope constraints on the origin of the 2.7 Ga Boston Creek Flow, Ontario, Canada Chemical Geology. 175: 567-579. DOI: 10.1016/S0009-2541(00)00358-2 |
0.511 |
|
| 2001 |
Waight TE, Wiebe RA, Krogstad EJ, Walker RJ. Isotopic responses to basaltic injections into silicic magma chambers: A Whole-rock and microsampling study of macrorhythmic units in the Pleasant Bay layered gabbro-diorite complex, Maine, USA Contributions to Mineralogy and Petrology. 142: 323-335. DOI: 10.1007/S004100100292 |
0.464 |
|
| 2001 |
Horan MF, Morgan JW, Walker RJ, Cooper RW. Re–Os isotopic constraints on magma mixing in the Peridotite Zone of the Stillwater Complex, Montana, USA Contributions to Mineralogy and Petrology. 141: 446-457. DOI: 10.1007/S004100100251 |
0.511 |
|
| 2000 |
Borisov A, Walker RJ. Os solubility in silicate melts: New efforts and results American Mineralogist. 85: 912-917. DOI: 10.2138/Am-2000-0704 |
0.396 |
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| 2000 |
Czamanske GK, Wooden JL, Walker RJ, Fedorenko VA, Simonov ON, Budahn JR, Siems DF. Geochemical, Isotopic, and SHRIMP Age Data for Precambrian Basement Rocks, Permian Volcanic Rocks, and Sedimentary Host Rocks to the Ore-bearing Intrusions, Noril'sk-Talnakh District, Siberian Russia International Geology Review. 42: 895-927. DOI: 10.1080/00206810009465117 |
0.479 |
|
| 2000 |
Walker RJ. The extraterrestrial wedding ring Nature. 406: 359-360. DOI: 10.1038/35019239 |
0.343 |
|
| 2000 |
Helz GR, Adelson JM, Miller CV, Cornwell JC, Hill JM, Horan M, Walker RJ. Osmium isotopes demonstrate distal transport of contaminated sediments in Chesapeake Bay Environmental Science and Technology. 34: 2528-2534. DOI: 10.1021/Es9913986 |
0.442 |
|
| 2000 |
Brandon AD, Walker RJ, Morgan JW, Goles GG. Re-Os isotopic evidence for early differentiation of the Martian mantle Geochimica Et Cosmochimica Acta. 64: 4083-4095. DOI: 10.1016/S0016-7037(00)00482-8 |
0.523 |
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| 2000 |
Borg LE, Brandon AD, Clynne MA, Walker RJ. Re-Os isotopic systematics of primitive lavas from the Lassen region of the Cascade arc, California Earth and Planetary Science Letters. 177: 301-317. DOI: 10.1016/S0012-821X(00)00051-0 |
0.563 |
|
| 2000 |
Brandon AD, Snow JE, Walker RJ, Morgan JW, Mock TD. 190Pt–186Os and 187Re–187Os systematics of abyssal peridotites Earth and Planetary Science Letters. 177: 319-335. DOI: 10.1016/S0012-821X(00)00044-3 |
0.496 |
|
| 2000 |
Tsuru A, Walker RJ, Kontinen A, Peltonen P, Hanski E. Re–Os isotopic systematics of the 1.95 Ga Jormua Ophiolite Complex, northeastern Finland Chemical Geology. 164: 123-141. DOI: 10.1016/S0009-2541(99)00134-5 |
0.498 |
|
| 1999 |
Tomascak PB, Krogstad EJ, Walker RJ. Significance of the Norumbega fault zone in southwestern Maine: Clues from the geochemistry of granitic rocks Special Paper of the Geological Society of America. 331: 105-119. DOI: 10.1130/0-8137-2331-0.105 |
0.413 |
|
| 1999 |
Walker RJ, Storey M, Kerr AC, Tarney J, Arndt NT. Implications of 187Os isotopic heterogeneities in a mantle plume: evidence from Gorgona Island and Curaçao Geochimica Et Cosmochimica Acta. 63: 713-728. DOI: 10.1016/S0016-7037(99)00041-1 |
0.591 |
|
| 1999 |
Tomascak PB, Tera F, Helz RT, Walker RJ. The absence of lithium isotope fractionation during basalt differentiation: new measurements by multicollector sector ICP-MS Geochimica Et Cosmochimica Acta. 63: 907-910. DOI: 10.1016/S0016-7037(98)00318-4 |
0.421 |
|
| 1999 |
Brandon AD, Norman MD, Walker RJ, Morgan JW. 186Os–187Os systematics of Hawaiian picrites Earth and Planetary Science Letters. 174: 25-42. DOI: 10.1016/S0012-821X(99)00251-4 |
0.397 |
|
| 1998 |
Brandon AD, Walker RJ, Morgan JW, Norman MD, Prichard HM. Coupled 186Os and 187Os evidence for core-mantle interaction Science (New York, N.Y.). 280: 1570-3. PMID 9616113 DOI: 10.1126/Science.280.5369.1570 |
0.416 |
|
| 1998 |
Shirey SB, Walker RJ. THE Re-Os ISOTOPE SYSTEM IN COSMOCHEMISTRY AND HIGH-TEMPERATURE GEOCHEMISTRY Annual Review of Earth and Planetary Sciences. 26: 423-500. DOI: 10.1146/Annurev.Earth.26.1.423 |
0.706 |
|
| 1998 |
Asmerom Y, Walker RJ. Pb and Os isotopic constraints on the composition and rheology of the lower crust Geology. 26: 359-362. DOI: 10.1130/0091-7613(1998)026<0359:Paoico>2.3.Co;2 |
0.505 |
|
| 1998 |
Horan MF, Smoliar MI, Walker RJ. 182W and 187Re-187Os Systematics of Iron Meteorites: Chronology for Melting, Differentiation, and Crystallization in Asteroids Geochimica Et Cosmochimica Acta. 62: 545-554. DOI: 10.1016/S0016-7037(97)00368-2 |
0.431 |
|
| 1997 |
Walker RJ, Morgan JW, Beary ES, Smoliar MI, Czamanske GK, Horan MF. Applications of the 190Pt186Os isotope system to geochemistry and cosmochemistry Geochimica Et Cosmochimica Acta. 61: 4799-4807. DOI: 10.1016/S0016-7037(97)00270-6 |
0.478 |
|
| 1997 |
Walker RJ, Morgan JW, Hanski EJ, Smolkin VF. Re-Os systematics of early proterozoic ferropicrites, Pechenga Complex, northwestern Russia: Evidence for ancient 187Os-enriched plumes Geochimica Et Cosmochimica Acta. 61: 3145-3160. DOI: 10.1016/S0016-7037(97)00088-4 |
0.555 |
|
| 1997 |
Terakado Y, Fujitani T, Walker RJ. Nd and Sr isotopic constraints on the origin of igneous rocks resulting from the opening of the Japan Sea, southwestern Japan Contributions to Mineralogy and Petrology. 129: 75-86. DOI: 10.1007/S004100050324 |
0.537 |
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| 1996 |
Smoliar MI, Walker RJ, Morgan JW. Re-Os Ages of Group IIA, IIIA, IVA, and IVB Iron Meteorites Science. 271: 1099-1102. DOI: 10.1126/Science.271.5252.1099 |
0.359 |
|
| 1996 |
Tomascak PB, Krogstad EJ, Walker RJ. U-Pb monazite geochronology of granitic rocks from Maine: Implications for Late Paleozoic tectonics in the northern Appalachians Journal of Geology. 104: 185-195. DOI: 10.1086/629813 |
0.444 |
|
| 1996 |
Meisel T, Walker RJ, Morgan JW. The osmium isotopic composition of the Earth's primitive upper mantle Nature. 383: 517-520. DOI: 10.1038/383517A0 |
0.52 |
|
| 1996 |
Krogstad EJ, Walker RJ. Evidence of heterogeneous crustal sources: The Harney Peak Granite, South Dakota, U.S.A Transactions of the Royal Society of Edinburgh, Earth Sciences. 87: 331-337. DOI: 10.1017/S0263593300006726 |
0.515 |
|
| 1996 |
Koide M, Goldberg ED, Walker R. The analysis of seawater osmium Deep-Sea Research Part Ii-Topical Studies in Oceanography. 43: 53-55. DOI: 10.1016/0967-0645(95)00082-8 |
0.386 |
|
| 1996 |
Walker RJ, Hanski E, Vuollo J, Liipo J. The Os isotopic composition of Proterozoic upper mantle: evidence for chondritic upper mantle from the Outokumpu ophiolite, Finland Earth and Planetary Science Letters. 141: 161-173. DOI: 10.1016/0012-821X(96)00076-3 |
0.52 |
|
| 1996 |
Tomascak PB, Krogstad EJ, Walker RJ. Nature of the crust in Maine, USA: Evidence from the Sebago batholith Contributions to Mineralogy and Petrology. 125: 45-59. DOI: 10.1007/S004100050205 |
0.486 |
|
| 1995 |
Walker RJ, Morgan JW, Horan MF. Osmium-187 enrichment in some plumes: evidence for core-mantle interaction? Science (New York, N.Y.). 269: 819-22. PMID 17778741 DOI: 10.1126/Science.269.5225.819 |
0.416 |
|
| 1995 |
Shirey SB, Walker RJ. Carius tube digestion for low-blank rhenium-osmium analysis Analytical Chemistry. 67: 2136-2141. DOI: 10.1021/Ac00109A036 |
0.641 |
|
| 1995 |
Horan MF, Walker RJ, Fedorenko VA, Czamanske GK. Osmium and neodymium isotopic constraints on the temporal and spatial evolution of Siberian flood basalt sources Geochimica Et Cosmochimica Acta. 59: 5159-5168. DOI: 10.1016/0016-7037(96)89674-8 |
0.526 |
|
| 1995 |
Morgan JW, Horan MF, Walker RJ, Grossman JN. Rhenium-osmium concentration and isotope systematics in group IIAB iron meteorites Geochimica Et Cosmochimica Acta. 59: 2331-2344. DOI: 10.1016/0016-7037(95)00109-D |
0.385 |
|
| 1994 |
Lambert DD, Walker RJ, Morgan JW, Shirey SB, Carlson RW, Zientek ML, Lipin BR, Koski MS, Cooper RL. Re—Os and Sm—Nd Isotope Geochemistry of the Stillwater Complex, Montana: Implications for the Petrogenesis of the J-M Reef Journal of Petrology. 35: 1717-1753. DOI: 10.1093/Petrology/35.6.1717 |
0.58 |
|
| 1994 |
Krogstad EJ, Walker RJ. High closure temperatures of the U-Pb system in large apatites from the Tin Mountain pegmatite, Black Hills, South Dakota, USA Geochimica Et Cosmochimica Acta. 58: 3845-3853. DOI: 10.1016/0016-7037(94)90367-0 |
0.39 |
|
| 1994 |
Walker RJ, Morgan JW, Horan MF, Czamanske GK, Krogstad EJ, Fedorenko VA, Kunilov VE. Re-Os isotopic evidence for an enriched-mantle source for the Noril'sk-type, ore-bearing intrusions, Siberia Geochimica Et Cosmochimica Acta. 58: 4179-4197. DOI: 10.1016/0016-7037(94)90272-0 |
0.557 |
|
| 1993 |
Krogstad EJ, Walker RJ, Nabelek PI, Russ-Nabelek C. Lead isotopic evidence for mixed sources of Proterozoic granites and pegmatites, Black Hills, South Dakota, USA Geochimica Et Cosmochimica Acta. 57: 4677-4685. DOI: 10.1016/0016-7037(93)90192-Y |
0.498 |
|
| 1992 |
Horan MF, Morgan JW, Walker RJ, Grossman JN. Rhenium-osmium isotope constraints on the age of iron meteorites. Science (New York, N.Y.). 255: 1118-21. PMID 17817787 DOI: 10.1126/Science.255.5048.1118 |
0.342 |
|
| 1992 |
Morgan JW, Walker RJ, Grossman JN. Rhenium-osmium isotope systematics in meteorites. I - Magmatic iron meteorite groups IIAB and IIIAB Earth and Planetary Science Letters. 108: 191-202. DOI: 10.1016/0012-821X(92)90022-N |
0.409 |
|
| 1991 |
Walker RJ, Morgan JW, Naldrett AJ, Li C, Fassett JD. Re-Os isotope systematics of Ni-Cu sulfide ores, Sudbury Igneous Complex, Ontario: evidence for a major crustal component Earth and Planetary Science Letters. 105: 416-429. DOI: 10.1016/0012-821X(91)90182-H |
0.518 |
|
| 1991 |
Walker RJ, Echeverria LM, Shirey SB, Horan MF. Re — Os isotopic constraints on the origin of volcanic rocks, Gorgona Island, Colombia: Os isotopic evidence for ancient heterogeneities in the mantle Contributions to Mineralogy and Petrology. 107: 150-162. DOI: 10.1007/Bf00310704 |
0.699 |
|
| 1989 |
Walker RJ, Morgan JW. Rhenium-osmium isotope systematics of carbonaceous chondrites. Science (New York, N.Y.). 243: 519-22. PMID 17799187 DOI: 10.1126/Science.243.4890.519 |
0.401 |
|
| 1989 |
Lambert DD, Morgan JW, Walker RJ, Shirey SB, Carlson RW, Zientek ML, Koski MS. Rhenium-osmium and samarium-neodymium isotopic systematics of the stillwater complex. Science (New York, N.Y.). 244: 1169-74. PMID 17757423 DOI: 10.1126/Science.244.4909.1169 |
0.68 |
|
| 1989 |
Morgan JW, Walker RJ. Isotopic determinations of rhenium and osmium in meteorites by using fusion, distillation and ion-exchange separations Analytica Chimica Acta. 222: 291-300. DOI: 10.1016/S0003-2670(00)81904-2 |
0.367 |
|
| 1989 |
Walker RJ, Carlson RW, Shirey SB, R BF. Os, Sr, Nd, and Pb isotope systematics of southern African peridotite xenoliths: Implications for the chemical evolution of subcontinental mantle Geochimica Et Cosmochimica Acta. 53: 1583-1595. DOI: 10.1016/0016-7037(89)90240-8 |
0.698 |
|
| 1989 |
Walker RJ, Shirey SB, Hanson GN, Rajamani V, Horan MF. Re-Os, Rb-Sr, and O isotopic systematics of the Archean Kolar schist belt, Karnataka, India Geochimica Et Cosmochimica Acta. 53: 3005-3013. DOI: 10.1016/0016-7037(89)90176-2 |
0.76 |
|
| 1989 |
Walker RJ, Hanson GN, Papike JJ. Trace element constraints on pegmatite genesis: Tin Mountain pegmatite, Black Hills, South Dakota Contributions to Mineralogy and Petrology. 101: 290-300. DOI: 10.1007/Bf00375314 |
0.575 |
|
| 1988 |
Walker RJ. Low-blank chemical separation of rhenium and osmium from gram quantities of silicate rock for measurement by resonance ionization mass spectrometry Analytical Chemistry. 60: 1231-1234. DOI: 10.1021/Ac00162A026 |
0.337 |
|
| 1988 |
Walker RJ, Shirey SB, Stecher O. Comparative ReOs, SmNd and RbSr isotope and trace element systematics for Archean komatiite flows from Munro Township, Abitibi Belt, Ontario Earth and Planetary Science Letters. 87: 1-12. DOI: 10.1016/0012-821X(88)90060-X |
0.707 |
|
| 1986 |
Walker RJ, Hanson GN, Papike JJ, O'Neil JR. Nd, O and Sr isotopic constraints on the origin of Precambrian rocks, Southern Black Hills, South Dakota Geochimica Et Cosmochimica Acta. 50: 2833-2846. DOI: 10.1016/0016-7037(86)90230-9 |
0.647 |
|
| 1983 |
Laul JC, Walker RJ, Shearer CK, Papike JJ, Simon SB. Chemical Migration by Contact Metamorphism between Pegmatite and Country Rocks: Natural Analogs for Radionuclide Migration Mrs Proceedings. 26. DOI: 10.1557/Proc-26-951 |
0.358 |
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