Academic Journal

Pelagic responses to oceanic anoxia during the Carnian Pluvial Episode (Late Triassic) in Panthalassa Ocean

التفاصيل البيبلوغرافية
العنوان: Pelagic responses to oceanic anoxia during the Carnian Pluvial Episode (Late Triassic) in Panthalassa Ocean
المؤلفون: Tomimatsu, Yuki, Nozaki, Tatsuo, Onoue, Tetsuji, Matsumoto, Hironao, Sato, Honami, Takaya, Yutaro, Kimura, Jun-Ichi, Chang, Qing, Rigo, Manuel
المساهمون: Japan Society for the Promotion of Science
المصدر: Scientific Reports ; volume 13, issue 1 ; ISSN 2045-2322
بيانات النشر: Springer Science and Business Media LLC
سنة النشر: 2023
الوصف: The Carnian Pluvial Episode (CPE) was a short interval of extreme rainfall in the Late Triassic that caused significant changes in marine ecosystems. Global warming induced by Wrangellia volcanism is thought to have resulted in oceanic anoxia during the CPE, but the global extent, duration, and severity of anoxia, and its effects on major marine taxa, remain unclear. To address this, we examined an equatorial record of conditions in the Panthalassa Ocean during the CPE, focusing on marine Os isotope data, redox conditions, and conodont and radiolarian biostratigraphy. The results show that Wrangellia volcanism peaked in the latest Julian (early Carnian), coinciding with development of reducing conditions in the deep-sea Panthalassa. A strong conodont turnover occurred during the period of oceanic anoxia, whereas radiolarians were less affected and their diversity increased after the recovery from anoxia. The increased radiolarian diversity during the early Tuvalian (late Carnian) can be attributed to chemical weathering and enhanced nutrient fluxes associated with global warming and the more humid climate of Pangea.
نوع الوثيقة: article in journal/newspaper
اللغة: English
DOI: 10.1038/s41598-023-43525-9
الاتاحة: http://dx.doi.org/10.1038/s41598-023-43525-9
https://www.nature.com/articles/s41598-023-43525-9.pdf
https://www.nature.com/articles/s41598-023-43525-9
Rights: https://creativecommons.org/licenses/by/4.0 ; https://creativecommons.org/licenses/by/4.0
رقم الانضمام: edsbas.29B6B3F3
قاعدة البيانات: BASE
الوصف
DOI:10.1038/s41598-023-43525-9