The composition of Mars

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Takashi Yoshizaki, William F. McDonough Geochimica et Cosmochimica Acta Available online 21 January 2020 LINK “Comparing compositional models of the terrestrial planets provides insights into physicochemical processes that produced planet-scale similarities and differences. The widely…

Precise radiometric age establishes Yarrabubba, Western Australia, as Earth’s oldest recognised meteorite impact structureOPEN ACCESS 

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Timmons M. Erickson, Christopher L. Kirkland, Nicholas E. Timms, Aaron J. Cavosie & Thomas M. Davison Nature Communications 11 , 1–8 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “The ~70 km-diameter Yarrabubba impact structure in Western…

Spatial U–Pb age distribution in shock-recrystallized zircon – a case study from the Rochechouart impact structure, France

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Cornelia Rasmussen, Daniel F. Stockli, Timmons M. Erickson, Martin Schmieder Geochimica et Cosmochimica Acta LINK “Age determination of impact structures via the zircon U–Pb system remains challenging and often ambiguous due to highly variable effects…

40Ar/39Ar systematics of melt lithologies and target rocks from the Gow Lake impact structure, Canada

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A.E. Pickersgill, D.F. Mark, M.R. Lee, G.R. Osinski Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 21 January 2020 LINK “The age of the Gow Lake impact structure (Saskatchewan, Canada) is poorly constrained,…

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