%0 Journal Article %T 遗迹化石对显生宙5大生物-环境事件的响应<br>Trace Fossils as a Proxy of the Big 5 Biotic- and Environmental Events in the Phanerozoic %A 张立军 %A 赵 曌 %A 龚一鸣< %A br> %A Zhang Lijun' %A Zhao Zhao'' %A Gong Yiming %J 地球科学(中国地质大学学报) %D 2015 %R 10.3799/dqkx.2015.030 %X 通过系统梳理与奥陶纪-志留纪、晚泥盆世弗拉期-法门期、二叠纪-三叠纪、三叠纪-侏罗纪、白垩纪-古近纪之交 的5次生物大灭绝期遗迹化石记录相关的生物和环境事件,发现遗迹化石对5次大灭绝事件为负响应,即在大灭绝事件之后 的残存期和复苏期期间,遗迹化石的多样性、丰度、潜穴直径、生物扰动强度、遗迹组构阶层都大为减小.遗迹化石反映的造迹 生物行为习性和觅食策略在5次生物大灭绝事件后也各有不同,食沉积物性觅食策略在晚奥陶世和晚白垩世大灭绝事件之 后占据主导,滤食性觅食策略在晚三叠世大灭绝事件之后占据主导,机会主义遗迹(如Planolites)、食沉积物性和滤食性等多 种觅食策略和行为习性在晚泥盆世F-F和晚二叠世两次大灭绝事件之后占据主导.晚泥盆世F-F和晚二叠世两次大灭绝事件 之后,遗迹化石记录了底栖生物系统由简单向复杂、由二维向三维生态空间拓展的变化趋势.<br>In this paper, we review the biotic and environmental events by examining the trace fossi1 records in association with the'Big5' mass extinctions in Phanerozoic, including the transitions of Ordovician-Silurian, Frasnian-Famennian, Permian- Triassic, Triassic-Jurassic and Cretaceous-Paleogene. The benthic fauna reflected in the trace fossi1 records show a negative re- sponse to all of the'Big5' events, documented by the decreases in the ichnodiversity, burrow size, bioturbation depth, and ichnofabric tier. The behavior and food-feeding strategy of benthic fauna is found to vary among the'Big5' mass extinctions. The deposit-feeding strategy dominated after the mass extinctions during 〇rdovician-Silurian and Cretaceous-Paleogene transi- tions, whilst the suspension-feeding strategy dominated after the mass extinction during Triassic-Jurassic transition. Opportun- istic trace fossils, such as Planolites, and both the deposit- and suspension-feeding strategies dominated after the mass extinc- tions during Frasnian-Famennian and Permian-Triassic transitions. The benthic ecosystems, reflected in the trace fossi1 records after the mass extinctions during Frasnian-Famennian and Permian-Triassic transitions, changed from simple to complex pat- tern, from two-dimensiona1 to three-dimensiona1 ecospace %K 遗迹化石 %K 显生宙 %K 生物-环境事件 %K 响应模式 %K 地层学 %K 环境影响< %K br> %K trace fossils %K phanerozoic %K bio-environmental events %K response pattern %K stratigraphy %K environment effect %U http://www.earth-science.net/WebPage/Article.aspx?id=3059