编号：CDUT-2022-20

标题：Synchronized changes in shallow water carbonate production during the Carnian Pluvial Episode (Late Triassic) throughout Tethys

入藏号：WOS:000508491500011

中国科学院文献情报中心期刊分区：地球科学1区/TOP

本校作者：金鑫；时志强

来源出版物：GLOBAL AND PLANETARY CHANGE 卷:184  文献号:103035

出版年：2020

第一地址：成都理工大学

关键词：颗粒统计；碳酸盐岩台地；微生物岩；四川盆地；阿尔卑斯山南部；卡尼期洪泛事件

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摘要：Quantitative petrologic analysis on carbonates was carried out on stratigraphic sections encompassing the Carnian Pluvial Episode from northwestern Sichuan Basin, South China and eastern Southern Alps. The Carnian Pluvial Episode, or CPE, is a period of climate change that occurred between the early Carnian and the beginning of the late Carnian (Late Triassic) and coincides with multiple, sharp negative excursions in the record of δ13 C that are thought to be evidence of perturbations of the global carbon cycle. During the CPE, relevant environmental modififications and biological turnovers occurred in the marine realm. In particular, microbial carbonate platforms, that were dominant in northwestern Sichuan Basin and throughout Tethys, underwent widespread demise and the microbial component in shelf carbonate sediments sharply decreased and was replaced by ooidand skeletal grains. Our results show a Tethys-wide coincidence between this change in the carbonate factory. Most notably, both in eastern and western Tethys microbial carbonate production recovered in the late Tuvalian, and the timing of recovery was not inflfluenced by difffferences of basin evolution and geodynamic setting that characterize such distant domains.

文章链接地址：https://www.sciencedirect.com/science/article/pii/S092181811930520X