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- W3120122992 abstract "Abundant pyrite in black shales at the Permian-Triassic Boundary (PTB) from several localities around the world has been regarded as evidence of oceanic anoxia during the end-Permian mass extinction (EPME). However, a significant amount of the “pyrite” in these rocks is not actually pyrite but marcasite, the orthorhombic polymorph of FeS2. Marcasite is particularly sensitive to changes in pH and fO2, which theoretically enables it to be utilized as a proxy for geochemical changes in the marine environment. Moreover, its abundance in these PTB rocks suggests that major geochemical changes occurred at this time in the global ocean. In this chapter, we present stable isotope and trace element compositional data for both marcasite and pyrite, which were identified in the stratigraphic interval representing the EPME, along with bulk-rock chemostratigraphic data for the Kockatea Shale, Perth Basin, Australia. We compare marcasite-pyrite intergrowth textures in PTB sedimentary sequences from Meishan D (MD), Opal Creek (OC), Ubara (Ub), and the Kockatea Shale (KS), which represent both shallow continental shelves of the ancient Tethys Ocean (KS, MD) and the abyssal plains of the Panthalassic Ocean (Ub, OC) at the end of the Permian. The textures, trace element geochemistry, and sulphur isotopic analyses of these samples favor a synsedimentary to early diagenetic origin for the sulfides, further supporting the notion that the EPME was at least partially caused by a large-scale pH drop in the global ocean at the PTB. A review of other sedimentary sequences around the globe, including pre- and post-Permian sections, indicates that sedimentary-diagenetic marcasite may be more abundant in the rock record than previously recognized, which carries implications for the geochemistry of the marine environment through geologic time." @default.
- W3120122992 created "2021-01-18" @default.
- W3120122992 creator A5002177532 @default.
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- W3120122992 creator A5086288176 @default.
- W3120122992 date "2021-01-08" @default.
- W3120122992 modified "2023-10-17" @default.
- W3120122992 title "Marcasite at the Permian‐Triassic Transition" @default.
- W3120122992 cites W1147214620 @default.
- W3120122992 cites W135926112 @default.
- W3120122992 cites W1492957437 @default.
- W3120122992 cites W1687366558 @default.
- W3120122992 cites W1770113505 @default.
- W3120122992 cites W1945123775 @default.
- W3120122992 cites W1965724422 @default.
- W3120122992 cites W1969023317 @default.
- W3120122992 cites W1972288867 @default.
- W3120122992 cites W1978103525 @default.
- W3120122992 cites W1978541630 @default.
- W3120122992 cites W1982834627 @default.
- W3120122992 cites W1984277976 @default.
- W3120122992 cites W1989698825 @default.
- W3120122992 cites W1992272796 @default.
- W3120122992 cites W1994270148 @default.
- W3120122992 cites W2001032892 @default.
- W3120122992 cites W2003898863 @default.
- W3120122992 cites W2004964550 @default.
- W3120122992 cites W2011947668 @default.
- W3120122992 cites W2012953447 @default.
- W3120122992 cites W2014363823 @default.
- W3120122992 cites W2016233632 @default.
- W3120122992 cites W2019017572 @default.
- W3120122992 cites W2020350310 @default.
- W3120122992 cites W2021463468 @default.
- W3120122992 cites W2025149656 @default.
- W3120122992 cites W2028912962 @default.
- W3120122992 cites W2029403887 @default.
- W3120122992 cites W2031023412 @default.
- W3120122992 cites W2035115892 @default.
- W3120122992 cites W2038814186 @default.
- W3120122992 cites W2045775112 @default.
- W3120122992 cites W2046007293 @default.
- W3120122992 cites W2048980980 @default.
- W3120122992 cites W2051791182 @default.
- W3120122992 cites W2057391595 @default.
- W3120122992 cites W2058347901 @default.
- W3120122992 cites W2060644843 @default.
- W3120122992 cites W2061928294 @default.
- W3120122992 cites W2063948515 @default.
- W3120122992 cites W2066631639 @default.
- W3120122992 cites W2068593151 @default.
- W3120122992 cites W2069393044 @default.
- W3120122992 cites W2072701557 @default.
- W3120122992 cites W2073560578 @default.
- W3120122992 cites W2073950441 @default.
- W3120122992 cites W2074321059 @default.
- W3120122992 cites W2079115522 @default.
- W3120122992 cites W2087216049 @default.
- W3120122992 cites W2089375343 @default.
- W3120122992 cites W2095840617 @default.
- W3120122992 cites W2099059310 @default.
- W3120122992 cites W2099535239 @default.
- W3120122992 cites W2100153488 @default.
- W3120122992 cites W2106048212 @default.
- W3120122992 cites W2107982324 @default.
- W3120122992 cites W2109379209 @default.
- W3120122992 cites W2109960660 @default.
- W3120122992 cites W2110422161 @default.
- W3120122992 cites W2113085959 @default.
- W3120122992 cites W2116971124 @default.
- W3120122992 cites W2122787143 @default.
- W3120122992 cites W2130359538 @default.
- W3120122992 cites W2147032286 @default.
- W3120122992 cites W2149500197 @default.
- W3120122992 cites W2154506653 @default.
- W3120122992 cites W2165736936 @default.
- W3120122992 cites W2168417416 @default.
- W3120122992 cites W2169940522 @default.
- W3120122992 cites W2170868235 @default.
- W3120122992 cites W2173001546 @default.
- W3120122992 cites W2187825126 @default.
- W3120122992 cites W2195425483 @default.
- W3120122992 cites W2283444846 @default.
- W3120122992 cites W2303130575 @default.
- W3120122992 cites W2319821331 @default.
- W3120122992 cites W2323636640 @default.
- W3120122992 cites W2324914440 @default.
- W3120122992 cites W2327963455 @default.
- W3120122992 cites W2339711361 @default.
- W3120122992 cites W2488244992 @default.
- W3120122992 cites W2528686176 @default.
- W3120122992 cites W2552047291 @default.
- W3120122992 cites W2561748727 @default.