遗迹组构的精细分析功能及其应用:第15届国际遗迹组构专题研讨会综述

第15届国际遗迹组构专题研讨会于2019年4月26日至5月9日在捷克首都布拉格顺利召开。从口头报告、展板、野外地质考察及专题讨论等方面可以得出遗迹学理论取得的新进展及其应用主要集中于4个方面: (1)遗迹组构内涵的外延和精细分析功能的完善,为沉积微环境分析、成因地层学解译和油气水储集层的精细表征提供了科学的理论基础和实用的工作方法;(2)遗迹化石在古生态、古气候等研究中的应用已成为遗迹学的重要工作领域,旨在通过研究古生物丰富的行为学、埋藏学特征,解译(古)生物与沉积物的相互作用,揭示遗迹化石发育段的古生态与古气候特征,进而搭建古生物学、沉积学和层序地层学之间的桥梁;(3)遗迹化石在重大地质事件研究方面具有重要应用,特别是为研究生物大灭绝后生态恢复期因没有矿化骨骼而无法保存为实体化石的生物提供了良好的信息载体,同时也为研究生物复苏期生态系统状况和大地构造-沉积环境条件提供了宝贵的线索;(4)新技术和新方法正在遗迹学研究中得到广泛应用,必将推动遗迹学理论的进一步完善和生产应用的快速发展。

Fine analysis functions and their application of ichnofabric: Outline of the 15th International Ichnofabric Workshop

The 15th International Ichnofabric Workshop was held successfully in Prague,the Czech capital from April 26th to May 9th,2019. From oral presentations,posters,field trips and workshop discussions,a few new progress and application of ichnology can be outlined: (1)Connotation of ichnofabric is extended and fine analysis functions of ichnofabric are further improved,which provides scientific theoretical basis and practical working method for sedimentary microenvirmental analysis,genetic stratigraphy interpretation and fine characterization of oil-gas and water reservoirs. (2)The applications of trace fossil in the study of palaeoecology and palaeoclimate have become important research directions in the field of ichnology. Organism-sediment interactions are interpreted through studying rich behavioral and taphonomic characteristics of palaeobios towards bridging among palaeontology,sedimentology and sequence stratigraphy. (3)Trace fossils have important applications in the study of major geological events. In particular,it provides the best evidence for the study of the creatures that cannot be preserved as body fossils due to the lack of mineralized skeleton in the ecological recovery period after the mass extinction,and provides invaluable clues for the study of the ecological system conditions and the geotectonic-sedimentary environment conditions in the biological recovery period. (4)New techniques and new methods are widely used in the field of ichnology,which will promote the further theoretic improvement in the field of ichnology and the rapid development in the field of production.