Richard J. Walker

机构: Department of Geology, University of Maryland

主页: umd.edu

每年引用次数

引用次数

引用: 27,144

H-指数: 90

I10-指数 : 219

出版物: 244

标题

引用次数

年份

The Apollo 15 regolith - Chemical modeling and mare/highland mixing

R. J. Walker , J. J. Papike
Lunar and Planetary Science Conference Proceedings 12 509 -517

1982

Size of the Group IVA Iron Meteorite Core: Constraints from the Age and Composition of Muonionalusta

R. J. Walker , N. A. Moskovitz
Meteoritics and Planetary Science Supplement 74 5505

2011

Low Abundances of Highly Siderophile Elements in the Lunar Mantle: Evidence for Prolonged Late Accretion

J. J. Papike , M. F. Horan , R. J. Walker , C. K. Shearer
Lunar and Planetary Science Conference 1110

2004

Measurement of low abundance isotopes by laser resonance ionization mass spectrometry (RIMS)

J. D. Fassett , R. J. Walker , J. C. Travis , F.C. Ruegg
Instrumentation Science & Technology 17 ( 1) 69 -86

1988

Chemical migration by contact metamorphism between pegmatite and country rocks: natural analogs for radionuclide migration

J. C. Laul , R. J. Walker , C. K. Shearer , J. J. Papike
MRS Proceedings 26 951

1983

Day et al. reply

J. M. D. Day , R. D. Ash , Y. Liu , J. J. Bellucci
Nature 459 ( 7246)

2009

Re-Os Ages of Group IIA, IIIA, IVA, and IVB Iron Meteorites

M. I. Smoliar , R. J. Walker , J. W. Morgan
Science 271 ( 5252) 1099 -1102

1,026

1996

Re — Os isotopic constraints on the origin of volcanic rocks, Gorgona Island, Colombia: Os isotopic evidence for ancient heterogeneities in the mantle

R. J. Walker , L. M. Echeverria , S. B. Shirey , M. F. Horan
Contributions to Mineralogy and Petrology 107 ( 2) 150 -162

1991

Osmium isotope constraints on the proportion of bolide component in Chicxulub impact melt rocks

A. Gelinas , D. A. Kring , L. Zurcher , J. Urrutia-Fucugauchi
Meteoritics & Planetary Science 39 ( 6) 1003 -1008

2004

Protracted core formation and rapid accretion of protoplanets.

T. S. Kruijer , M. Touboul , M. Fischer-Godde , K. R. Bermingham
Science 344 ( 6188) 1150 -1154

224

2014

Lithium isotopic systematics of granites and pegmatites from the Black Hills, South Dakota

F.-Z. Teng , W. F. McDonough , R. L. Rudnick , R. J. Walker
American Mineralogist 91 ( 10) 1488 -1498

2006

Geochemistry and Origin of the Intrusive Hosts of the Noril’sk-TalnakhCu-Ni-PGE Sulfide Deposits

N. T. Arndt , G. K. Czamanske , R. J. Walker , C. Chauvel
Economic Geology 98 ( 3) 495 -515

125

2003

Osmium-187 enrichment in some plumes: evidence for core-mantle interaction?

R. J. Walker , J. W. Morgan , M. F. Horan
Science 269 ( 5225) 819 -822

182

1995

Heterogeneous delivery of silicate and metal to the Earth by large planetesimals

S. Marchi , R. M. Canup , R. J. Walker
Nature Geoscience 11 ( 1) 77 -81

2018

Preservation of Earth-forming events in the tungsten isotopic composition of modern flood basalts.

H. Rizo , R. J. Walker , R. W. Carlson , M. F. Horan
Science 352 ( 6287) 809 -812

106

2016

The osmium isotopic composition of the Earth's primitive upper mantle

T. Meisel , R. J. Walker , J. W. Morgan
Nature 383 ( 6600) 517 -520

304

1996

182W evidence for long-term preservation of early mantle differentiation products.

M. Touboul , I. S. Puchtel , R. J. Walker
Science 335 ( 6072) 1065 -1069

203

2012

Effects of Mother Lode-Type Gold Mineralization on 187Os/188Os and Platinum Group Element Concentrations in Peridotite: Alleghany District, California

R. J. Walker , J. K. Bohlke , W. F. McDonough , J. Li
Economic Geology 102 ( 6) 1079 -1089

2007

Nd and Sr isotopic constraints on the origin of igneous rocks resulting from the opening of the Japan Sea, southwestern Japan

Y. Terakado , T. Fujitani , R. J. Walker
Contributions to Mineralogy and Petrology 129 ( 1) 75 -86

1997

Origin of Paleoproterozoic Komatiites at Jeesiörova, Kittilä Greenstone Complex, Finnish Lapland

AMITAVA GANGOPADHYAY , RICHARD J. WALKER , EERO HANSKI , PETER A. SOLHEID
Journal of Petrology 47 ( 4) 773 -789

2006

Geochemistry

Cosmochemistry

Isotope Geochemistry

Richard J. Walker

引用次数

出版物: 244

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