A 187Re-187Os, 87Rb-87Sr, highly siderophile and incompatible trace element study of some carbonaceous, ordinary and enstatite chondrite meteorites

Autor:	James M.D. Day, Christopher A. Corder, Kurt Marti, Yang Liu, Nelly Assayag, Nicole Phelan, Frédéric Moynier, Jasmeet K. Dhaliwal, Caleb Strom, Emily A. Pringle, Pierre Cartigny
Rok vydání:	2022
Předmět:	Mineral Trace element Geochemistry engineering.material Silicate Parent body chemistry.chemical_compound chemistry Meteorite Geochemistry and Petrology Chondrite Enstatite engineering Ordinary chondrite
Zdroj:	Geochimica et Cosmochimica Acta. 318:19-54
ISSN:	0016-7037
Popis:	New 187Re-187Os, 87Rb-87Sr, triple O-isotope isotope, bulk rock highly siderophile- (HSE: Os, Ir, Ru, Pt, Pd, Re), major- and trace-element abundance data are reported for a variety of carbonaceous, ordinary and enstatite chondrite meteorites. In addition, new mineral chemical data are reported for the Chelyabinsk LL5 ordinary chondrite fall for comparison with existing chondrite data and to investigate element sequestration into metal and mineral phases within some chondrites. The focus of the study is to link the variations observed in the HSE abundances and Re-Os isotopes with other isotopic and elemental data to explore the relative roles of sample sizes, terrestrial alteration and parent body processes more fully on chondrite meteorite compositions. Trace element variations in Chelyabinsk silicate, oxide and metal grains highlight the importance of geochemical heterogeneity imparted by mineralogical variations and mode effects, as well as sample size. Using a range of sample powder aliquot sizes, it is possible to show that this becomes significant for the HSE at
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::deac865f8b0966300fbe4d0c20fe186a https://doi.org/10.1016/j.gca.2021.11.020 Zobrazit plný text záznamu Full Text from ScienceDirect