M
Mary F. Horan
Researcher at Carnegie Institution for Science
Publications - 67
Citations - 5053
Mary F. Horan is an academic researcher from Carnegie Institution for Science. The author has contributed to research in topics: Chondrite & Mantle (geology). The author has an hindex of 35, co-authored 65 publications receiving 4606 citations. Previous affiliations of Mary F. Horan include University of Maryland, College Park & United States Geological Survey.
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Highly siderophile element composition of the Earth’s primitive upper mantle: Constraints from new data on peridotite massifs and xenoliths
Harry Becker,Harry Becker,Mary F. Horan,Richard J. Walker,Shan Gao,Jean-Pierre Lorand,Roberta L. Rudnick +6 more
TL;DR: In this article, the authors used the HSE composition of fertile lherzolites to constrain the origin of the highly siderophile element (HSE) excess in Earth's mantle.
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Highly siderophile elements in chondrites
TL;DR: The abundances of the highly siderophile elements (HSE), Re, Os, Ir, Ru, Pt and Pd, were determined by isotope dilution mass spectrometry for bulk samples of 13 carbonaceous chondrites, 13 ordinary chondites and 9 enstatite chondrite as discussed by the authors.
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Comparative 187Re-187Os systematics of chondrites: Implications regarding early solar system processes
Richard J. Walker,Mary F. Horan,John W. Morgan,Harry Becker,Jeffrey N. Grossman,Alan E. Rubin +5 more
TL;DR: A suite of 47 carbonaceous, enstatite, and ordinary chondrites are examined for Re-Os isotopic systematics in this paper, and the results indicate that the Re/Os ratios of meteorites within each group are, in general, quite uniform.
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Chondrite Barium, Neodymium, and Samarium Isotopic Heterogeneity and Early Earth Differentiation
TL;DR: This result strengthens the conclusion that the deficiency in 142Nd in chondrites relative to terrestrial rocks reflects 146Sm decay and earlyplanetary differentiation processes.
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Residual platinum-group minerals from highly depleted harzburgites of the Lherz massif (France) and their role in HSE fractionation of the mantle
Ambre Luguet,Ambre Luguet,Steven B. Shirey,Jean-Pierre Lorand,Mary F. Horan,Richard W. Carlson +5 more
TL;DR: In this article, four very depleted spinel-harzburgites from the Lherz massif (France) have been analyzed for HSE in whole-rock and in major mineral separates by isotope dilution.