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JIN Xin, SHI ZhiQiang, WANG YanYan, DUAN Xiong, CHENG Ming. Mid-Carnian (Late Triassic)Extreme Climate Event: Advances and unsolved problems[J]. Acta Sedimentologica Sinica, 2015, 33(1): 105-115. doi: 10.14027/j.cnki.cjxb.2015.01.011
Citation: JIN Xin, SHI ZhiQiang, WANG YanYan, DUAN Xiong, CHENG Ming. Mid-Carnian (Late Triassic)Extreme Climate Event: Advances and unsolved problems[J]. Acta Sedimentologica Sinica, 2015, 33(1): 105-115. doi: 10.14027/j.cnki.cjxb.2015.01.011

Mid-Carnian (Late Triassic)Extreme Climate Event: Advances and unsolved problems

doi: 10.14027/j.cnki.cjxb.2015.01.011
  • Received Date: 2014-01-14
  • Rev Recd Date: 2014-04-21
  • Publish Date: 2015-02-10
  • As one of the most pronounced climatic cextremes in the geological history, the mid-Carnian (Late Triassic) extreme climate event, also named the Carnian Pluvial Event (CPE), has been widely recognized from the United States, China, Japan, and many places of Europe over past decades. The known evidence shows that the CPE is characterized by a dramatic increase in rainfalls and could last for nearly one million years. The CPE is represented by the sharp replacement of platform facies carbonates with the siliciclastic succession of mid-Carnian age worldwide. Several scenarios have been proposed to account for the CPE: (1) The plate tectonic activities such as collision and aggregation of the Pangea are believed to have prompted the atmosphere and ocean circulation changes; (2) the coeval large igneous province eruptions such as the Wrangellia Volcanic Province may have triggered a dramatic increase in CO2 contents in atmosphere, which caused a warm, wet climatic condition; (3) Possible global climate disruption such as megamonsoon induced the elevated rainfalls; and integration of all of these factors accounted for the climatic extreme. The strata record from southwestern China suggests that the link among the megamonsoon, tectonic movement and climate changes during the Carnian Stage is worthy studying in detail. In addition, further studies on some critical issues concerning the rise of carbonate compensation depth (CCD), high oceanic productivity reflected by the Carnian black shale, and pulses of humid climate during the mid-Carnian are crucial for better understanding of this deep-time climatic extreme.
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  • Received:  2014-01-14
  • Revised:  2014-04-21
  • Published:  2015-02-10

Mid-Carnian (Late Triassic)Extreme Climate Event: Advances and unsolved problems

doi: 10.14027/j.cnki.cjxb.2015.01.011

Abstract: As one of the most pronounced climatic cextremes in the geological history, the mid-Carnian (Late Triassic) extreme climate event, also named the Carnian Pluvial Event (CPE), has been widely recognized from the United States, China, Japan, and many places of Europe over past decades. The known evidence shows that the CPE is characterized by a dramatic increase in rainfalls and could last for nearly one million years. The CPE is represented by the sharp replacement of platform facies carbonates with the siliciclastic succession of mid-Carnian age worldwide. Several scenarios have been proposed to account for the CPE: (1) The plate tectonic activities such as collision and aggregation of the Pangea are believed to have prompted the atmosphere and ocean circulation changes; (2) the coeval large igneous province eruptions such as the Wrangellia Volcanic Province may have triggered a dramatic increase in CO2 contents in atmosphere, which caused a warm, wet climatic condition; (3) Possible global climate disruption such as megamonsoon induced the elevated rainfalls; and integration of all of these factors accounted for the climatic extreme. The strata record from southwestern China suggests that the link among the megamonsoon, tectonic movement and climate changes during the Carnian Stage is worthy studying in detail. In addition, further studies on some critical issues concerning the rise of carbonate compensation depth (CCD), high oceanic productivity reflected by the Carnian black shale, and pulses of humid climate during the mid-Carnian are crucial for better understanding of this deep-time climatic extreme.

JIN Xin, SHI ZhiQiang, WANG YanYan, DUAN Xiong, CHENG Ming. Mid-Carnian (Late Triassic)Extreme Climate Event: Advances and unsolved problems[J]. Acta Sedimentologica Sinica, 2015, 33(1): 105-115. doi: 10.14027/j.cnki.cjxb.2015.01.011
Citation: JIN Xin, SHI ZhiQiang, WANG YanYan, DUAN Xiong, CHENG Ming. Mid-Carnian (Late Triassic)Extreme Climate Event: Advances and unsolved problems[J]. Acta Sedimentologica Sinica, 2015, 33(1): 105-115. doi: 10.14027/j.cnki.cjxb.2015.01.011
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