Timing of Permo-Triassic Mass Extinctions: Global Correlation by High-Resolution Astronomical Tuning
The Permian-Triassic (P-T) mass extinction resulted in the greatest dying of earth life ever recorded, with the loss of more than 90％ of all marine species (Erwin, 2006). The cause of this crisis remains enigmatic despite continued, intensive scientific study of the event. Multiple scenarios have been proposed as causes for the P-T extinction, and there is evidence that four major triggers are the most likely candidates responsible for the crisis: bolide impact, flood basalt eruption of the Siberian traps, oceanic anoxia, and catastrophic release of seafloor methane (Knoll et al., 2007). Any reasonable model that interprets the P/T biotic crisis needs to be tested by first understanding the precise biotic extinction pattern and duration. Most current scenarios explain the P-T catastrophic event by assuming that the biotic extinction was an abrupt, mono-episodic event, as documented by Jin et al. (2000) from the Meishan Section, South China.
Huang Chunju Tong Jinnan Linda Hinnov Z Q Chen
Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore MD 21218, USA Key Laboratory of Biogeology and Environmental Geology of Education Ministry,China University of Geo School of Earth & Environment, The University of Western Australia, 35 Stirling Highway,Crawley WA 6
国际会议
The International Conference of Geobiology(地球生物学国际研讨会)
武汉
英文
135-136
2010-06-03（万方平台首次上网日期，不代表论文的发表时间）