August 25-30
Details for Richard Walker
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Richard Walker
University of Maryland
Abstracts by this author at Goldschmidt2013
Note: abstracts are only listed if one of the following email addresses was provided when the abstract was submitted: rjwalker@geol.umd.edu. Otherwise, try an advanced search.Sorry, searching of Goldschmidt2013 abstracts will be available after the end of the abstract submission period.
Abstracts submitted to previous conferences
Below are all abstracts at recent previous conferences in the conference archives authored by rjwalker@geol.umd.edu.| (2012) Bendego IC-Iron: HSE and Re-Os |
| Rios D, Carvalho W, Walker R, Davis D & Zucolotto ME |
| (2012) Keynote: Combined 182W, 186, 87Os and 142, 43Nd Constraints on Terrestrial Differentiation and Mantle Mixing |
| Walker R, Touboul M & Puchtel I |
| (2012) Early Earth: An Insight from the Combined Os-Nd-Hf Isotope Systematics of Barberton Komatiites |
| Puchtel I, Touboul M, Blichert-Toft J & Walker R |
| (2012) Medal: Planetary Scale Sr Isotopic Heterogeneity |
| Moynier F, Day J, Okui W, Yokoyama T, Bouvier A, Walker R & Podosek F |
| (2012) Primordial Mantle Heterogeneities Revealed by Coupled 182W and 186, 87Os Investigations |
| Touboul M, Liu J, O'Neil J, Puchtel I & Walker R |
| (2012) Separation of Mo, W and HFSEs from Rock Samples for the Study of Isotope Anomalies in Meteorites |
| Nagai Y, Yokoyama T & Walker R |
| (2012) The Upper Pennsylvanian Hushpuckney Black Shale Member from the Swope Formation in Kansas: Rhenium -Osmium Isotope Systematics, and the Highly Siderophile Elements (HSE) |
| Pitcher LL, Rasbury ET, Walker RJ & Watney WL |
| (2011) 186Os-187Os and Highly Siderophile Element Abundance Systematics of Earth’s Upper Mantle |
| Day J, Warren J & Walker R |
| (2011) Comparative Sr-Nd-Pb-Hf-Os Isotopic Systematics of Xenolithic Peridotites from Yangyuan, North China Craton |
| Liu J, Carlson R, Rudnick R, Walker R, Wu F & Gao S |
| (2011) Evolution of Deep Mantle Sources as Inferred from Os-Nd Isotope Systematics of Archean Komatiites |
| Puchtel I & Walker R |
| (2011) Tungsten Isotopic Anomalies in Archean Komatiites |
| Touboul M, Puchtel IS & Walker RJ |
| (2011) Invited: Understanding Late Accretion on the Earth, Moon, and Mars |
| Bottke W, Walker R, Day J, Nesvorny D & Elkins-Tanton L |
| (2011) Uniform Os Isotopic Composition in Early-Formed Planetesimals |
| Walker R |
| (2010) 186-Os Systematics of Hawaiian Picrites |
| Ireland T, Walker R & Brandon A |
| (2010) 186Os-187Os Systematics of EM and HIMU Flavours |
| Day J, Jackson M & Walker R |
| (2010) 84Sr Anomalies in Meteorites? |
| Moynier F, Day J, Bouvier A, Podosek F & Walker R |
| (2010) Clues to the Formation of the Terrestrial Planets from Highly Siderophile Elements |
| Walker R, Puchtel I, Day J, Galenas M & Brandon A |
| (2010) Highly Siderophile Elements as Tracers of Mantle-Crust Interactions in Subduction Zone Metamorphic Rocks: Evidence from the Franciscan Complex, CA |
| Penniston-Dorland S, Walker R, Pitcher L & Sorensen S |
| (2010) Highly Siderophile Elements in the Early Earth: A Story Told by Barberton Komatiites |
| Puchtel I, Walker R, Robin C, Arndt N, Nisbet E, Anhaeusser C & Byerly G |
| (2010) Keynote: Melting and Refertilization in Peridotites: What Happens to Os? |
| Rudnick R & Walker R |
| (2010) Os Isotope Evidence for Diachronous Formation of Lithospheric Mantle beneath the Trans-North China Orogen, North China Craton |
| Liu J, Rudnick R, Walker R, Gao S, Wu F, Xu W & Xu Y |
| (2010) The HSE Budget in Early Mars and Genesis of Shergottites |
| Brandon A, Puchtel I, Day J & Walker R |
| (2009) Fractionated Highly Siderophile Elements in Fertile Mantle Xenoliths |
| Palme H, Witt-Eickschen G & Walker R |
| (2009) Highly Siderophile Element Evidence from Early Solar System Processes in Ordinary Chondrite Components |
| Horan M, Alexander C & Walker R |
| (2009) Highly Siderophile Elements in the Earth’s Mantle: Message from the Archean Komatiite Zoo |
| Puchtel IS & Walker RJ |
| (2009) Highly Siderophile Elements in the Mantles of the Terrestrial Planets |
| Walker R, Puchtel I & Day J |
| (2009) Re-Os Geochemistry of Fe-Rich Peridotites and Pyroxenites from Horní Bory, Czech Republic |
| Ackerman L, Walker R & Puchtel I |
| (2009) Recycled Lower Continental Crust: Re-Os Isotopic Evidence from Peridotite Xenoliths Entrained by Mesozoic High-Mg Diorites in the Eastern North China Craton |
| Xu W-L, Gao S, Yang D-B, Yuan H-L, Rudnick RL & Walker RJ |
| (2009) Invited: The Role of Volatiles during Asteroidal Differentiation |
| Day J, Walker R, Sunshine J, Ash R, Rumble D, Liu Y, McDonough B & Taylor L |
| (2008) 187Re-187Os Isotopic and Highly Siderophile Element (HSE) Systematics of Pallasites |
| Lee SR, Walker RJ, McCoy TJ & McDonough WF |
| (2008) Chemical and Chronologic Complexity in the Oceanic Mantle: Evidence from the Taitao Ophiolite |
| Walker R, Schulte R, Schilling M, Horan M, Anma R & Farquhar J |
| (2008) Constraining Deep Mantle Contributions to Canary Island Lavas |
| Day J, Walker R, Hilton D, Carracedo J-C & Hanski E |
| (2008) Highly Siderophile Elements and 187Os/188Os in the Parental Melts of Hawaiian Picrites |
| Ireland TJ & Walker R |
| (2008) Light Mo Isotopic Signatures in Chesapeake Bay Sediments |
| Scheiderich K, Dolor M, Helz G, Walker R & Kaufman AJ |
| (2008) Osmium Partitioning Behavior between Metal and Silicate Melt at High Pressure and Temperature: A New Experimental Approach |
| Yokoyama T, Walker D & Walker R |
| (2008) Re-Os Isotope and HSE Systematics of 3.5 Ga Barberton Komatiites |
| Puchtel I & Walker R |
| (2007) Fractionated HSE in Suboceanic Mantle: Assessing the Influence of Refertilization Processes on Upper Mantle Peridotites |
| van Acken D, Becker H, Wombacher F, Walker RJ, McDonough WF, Ash RD & Piccoli PM |
| (2007) Geochemical Tracing of Core-Mantle Interaction: High-Precision W Isotopic Data on Komatiites Using TIMS |
| Becker H, Brandon A & Walker R |
| (2007) More on Os Isotope Anomalies in Chondrites: Possible Carriers |
| Yokoyama T, Rai V, Alexander C & Walker R |
| (2007) Pt-Re-Os Isotope and HSE Systematics of Belingwe Komatiites |
| Puchtel I, Brandon A, Walker R & Nisbet E |
| (2007) Re-Os Depth Profile of the Upper Mantle beneath Central Europe |
| Ackerman L, Puchtel IS, Walker RJ & Jelínek E |
| (2007) Keynote: The 187Os/188Os of the Convecting Upper Mantle |
| Walker R |
| (2006) 187Re-187Os isotopic and highly siderophile element systematics of pallasites |
| Lee SR, Walker R, McCoy T & McDonough W |
| (2006) Behavior of PGEs and Re in Kilauea Iki lava lake, Hawaii |
| Helz R, Pitcher L & Walker R |
| (2006) Re-Os evidence for age and origin of peridotites from the Dabie-Sulu UHP belt |
| Yuan H, Gao S, Rudnick RL, Jin Z & Walker RJ |
| (2006) The Search for Evidence of Chemical Interaction Between the Core and Mantle |
| Walker R, Ireland T & Brandon A |
| (2005) Lithium Isotopic Fractionation in Pegmatites |
| Teng F, McDonough W, Rudnick R & Walker R |
| (2005) Platinum-Osmium Isotope Evolution of the Earth's Mantle |
| Brandon A, Walker R, Puchtel I & Humayun M |
| (2005) Pt-Re-Os Isotope and HSE Systematics of 2.8<$>Ga Komatiites |
| Puchtel IS, Brandon AD, Humayun M & Walker RJ |
| (2004) Low Abundances of Highly Siderophile Elements in Lunar Mantle Imply Prolonged Late Accretion |
| Horan M, Walker R, Shearer C & Papike J |
| (2002) Invited: Evolution of Osmium Isotopes In Komatiite Sources |
| Walker R |
| (2002) Invited: Permian-Triassic Komatiites and their Os Isotopic Characteristics in Northern Vietnam |
| Hanski E, Walker RJ, Polyakov GV, Glotov AI, Balykin PA & Hoa TT |
| (2002) Ru and Mo Isotopic Constraints on the Scale of Isotopic Homogeneity in Meteorites and their Parent Bodies |
| Becker H & Walker R |
| (2001) The 98Tc-98Ru and 99Tc-99Ru Chronometers: New Results on Iron Meteorites and Terrestrial Ru |
| Becker H & Walker RJ |
| (2001) The Fingerprint of the Late Veneer: Evidence from the Highly Siderophile Elements and Osmium Isotopes |
| Walker RJ, Horan MF & Morgan JW |
| (2000) Siderophile Elements in Earth's Upper Mantle and Lunar Breccias: Manifestations of the Same Late Influx |
| Morgan JW, Walker RJ, Brandon AD & Horan MF |