Determining the impactor of the Ordovician Lockne
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منابع مشابه
Determining the Impactor of the Ordovician Lockne Crater: Oxygen Isotopes in Chromite versus Sedimentary Pge
IN CHROMITE VERSUS SEDIMENTARY PGE SIGNATURES B. Schmitz , P. R. Heck, C. Alwmark, N. T. Kita, B. Peucker-Ehrenbrink, T. Ushikubo, and J. W. Valley, Department of Geology, Sölvegatan 12, Lund University, SE-22362 Lund, Sweden, [email protected], Department of Geology and Geophysics, University of Wisconsin, 1215 W. Dayton St., Madison, WI 53706, USA, Department of Marine Chemistry and G...
متن کاملDetermining the impactor of the Ordovician Lockne crater: Oxygen and neon isotopes in chromite versus sedimentary PGE signatures
a Department of Geology, Sölvegatan 12, Lund University, SE-22362 Lund, Sweden b Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA c Department of Geoscience, University of Wisconsin, 1215 W. Dayton St., Madison, WI 53706, USA d Robert A. Pritzker Center for Meteoritics and Polar Studies, Department of Geology, The Field Museum of N...
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Impacts are common geologic features on the terrestrial planets throughout the solar system, and on at least Earth and Mars impacts have induced hydrothermal convection. Impact-generated hydrothermal systems have been suggested to possess the same life supporting capability as hydrothermal systems associated with volcanic activity. However, evidence of fossil microbial colonization in impact-ge...
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تاریخ انتشار 2011