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Details for Richard Walker

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No photo 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.








Abstracts submitted to previous conferences

Below are all abstracts at recent previous conferences in the conference archives authored by rjwalker@geol.umd.edu.


(2013) Early Mantle Composition and Evolution Inferred from 142Nd and 182W Variations in Isua Samples
Rizo H, Touboul M, Carlson RW, Boyet M, Puchtel IS & Walker RJ

(2013) Effects of Subduction-Related Melt Extraction on Iapetus Ocean Mantle
O'Driscoll B, Walker R, Day J & Daly S

(2013) Formation Mechanisms of Reaction Zones in Mélange Zones: Evidence for Mechanical Mixing
Gorman J, Penniston-Dorland S, Walker R & Marschall H

(2013) Isotopic and Elemental Evidence of Magma Ocean Processes Recorded in Early Archean Komatiites
Puchtel I, Walker R, Touboul M & Blichert-Toft J

(2013) New Constraints on the Magnitude and Timing of Late Accretion
Walker R, Touboul M, Puchtel I & Liu J

(2013) Tungsten Isotope Heterogeneities in Archean Komatiites
Touboul M, Puchtel I & Walker R

(2012) Bendego IC-Iron: HSE and Re-Os
Rios D, Carvalho W, Walker R, Davis D & Zucolotto ME


(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, 187Os Investigations
Touboul M, Liu J, O'Neil J, 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


(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 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) 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) 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) Light Mo Isotopic Signatures in Chesapeake Bay Sediments
Scheiderich K, Dolor M, Helz G, Walker R & Kaufman AJ



(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) 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


(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


(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



(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