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三叠纪-侏罗纪之交发生了一次显著的全球生物大灭绝事件,为地质历史时期的五大灭绝事件之一,这一重大地质转折时期的古生态和古环境变化越来越受到科学界的重视。众多研究已经发现,沉积地层夹层中煤和含煤层的煤岩学特征、惰质组含量、植物化石形态、孢粉组合、碳同位素偏移等证据,均可以反映出古生态、古气候以及古环境的细微波动变化,因此三叠系-侏罗系界线(Triassic-Jurassic Boundary,简称为TJB)古火灾活动及其古环境可以通过以上证据来进行判定与恢复。本文旨在介绍国际上古火灾事件研究的几种主要方法、TJB古火灾事件研究进展,并对中国开展三叠纪-侏罗纪之交古火灾事件与古环境、古生态研究提出展望。
Triassic-Jurassic dating to the occurrence of a significant event of global mass extinction, geological history of one of the five extinction events, paleo-ecological and paleoenvironmental changes during this major geological transition period more and more attention by the scientific community . Numerous studies have found that the evidence of coal petrological characteristics, the content of inertinite, the morphology of plant fossils, the assemblage of sporopollen and the carbon isotope migration of the coal and coal-bearing strata in the sedimentary stratigraphy all reflect the paleoecology, paleoclimate and ancient Therefore, the Triassic-Jurassic Boundary (TJB) ancient fire activity and its paleoenvironment can be judged and recovered by the above evidence. The purpose of this article is to introduce several main methods of the research on the international ancient fire events, the research progress of the TJB ancient fire events, and to put forward the prospect of the study on the ancient fire events and paleoenvironmental and paleoecology in China from Triassic to Jurassic.