Permian-Triassic boundary interval in the Middle East (Iran and N. Oman): Progressive environmental change from detailed carbonate carbon isotope marine curve and sedimentary evolution

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Title
Permian-Triassic boundary interval in the Middle East (Iran and N. Oman): Progressive environmental change from detailed carbonate carbon isotope marine curve and sedimentary evolution
Journal
Journal of Asian Earth Sciences
Author(s)
Richoz Sylvain, Krystyn Leopold, Baud Aymon, Brandner Rainer, Horacek Micha
Publication state
Published
Issued date
2010
Language
english
Abstract
The end Permian negative d13C excursion is well known but its cause and chronology are still in question.
In an attempt to decipher the timing and reasons for this strong decrease, we established high-resolution
sedimentological, biostratigraphical and carbonate carbon isotopic studies in four sections in Iran (Abadeh,
Shareeza, Zal and Djulfa) and two in Oman (Wadi Sahtan). The position of the sections on two different
margins of the Neotethys has allowed us to distinguish between local and global signals. This highresolution
chemostratigraphy, tested for isochrony on the basis of an updated high-resolution conodont
and ammonoid biostratigraphy, allows the discrimination of nine successive isotopic events (IE 0–8) for
the Permian–Triassic Boundary Interval (PTBI).
Keywords
Permian–Triassic boundary/Iran/Oman/Conodonts
Create date
19/01/2021 15:50
Last modification date
20/01/2021 6:24
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