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美国的《科学》杂志,是全世界最权威的学术期刊之一。几年前,《科学》杂志在线快报了一则令人震惊的研究成果。中、澳、美等国科学家研究生物分子化石发现:2.5亿年前生物大灭绝与古海洋透光层的硫化氢污染有关。地球生命演化史上曾发生过六次重大的生物绝灭事件,其中2.5亿年前的那一次规模最大、影响最深远。此次事件中,海洋生物种类降低一半,生态系统也彻底更新,成为地球历史从古生代向中生代转折的里程碑。中国科学院南京地质古生物研究所曹长群博士介绍,检测分析岩
The United States of America “Science” magazine, is the world’s most authoritative academic journals. A few years ago, Science magazine posted a shocking research online. Researchers from China, Australia, the United States and other countries found biomolecular fossils: About 250 million years ago, the mass extinction was related to the hydrogen sulfide pollution in paleoceanic translucent layers. There have been six major biological extinction events in the evolution of Earth’s life, of which 250 million years ago was the largest and the most far-reaching. In this incident, the species of marine life has been reduced by half and the ecosystem has been completely renewed. This has become a milestone in the transition of the history of the earth from Paleozoic to Mesozoic. Institute of Geology and Palaeontology, Chinese Academy of Sciences, Dr. Cao Changqun introduction, detection and analysis of rock