【摘要】 介绍了地震沉积学的发展历史,讨论了地震沉积学的涵义、地质和地球物理背景、关键技术以及近期发展展望。地震沉积学是一个新的学科领域,在其发展过程中不仅得到西方石油工业界和学术界的大力扶持,也得到了中国大多数学者的认同和支持。地震沉积学与地震地层学和层序地层学有着内在联系,但在内容上更注重研究沉积岩和沉积作用。在目前技术条件下,地震沉积学体现为地震岩性学和地震地貌学的综合。地震沉积学得益于对地震水平分辨能力的利用,对地震反射穿时性的认识,及利用等时地层格架内的虚拟作图解决薄层水平成像问题的顿悟。地震沉积学经济实用的两项关键技术是地震道90°相位化和地层切片。中国地震沉积学的近期发展可能出现在陆相盆地地震岩性学方法、陆相盆地的地震沉积相模式、及陆相盆地地震沉积学研究规范等方面。更多还原

【Abstract】 This paper summarizes the history of seismic sedimentology,with a brief discussion of its definition,geologic and geophysical background,key techniques,and future developments.Seismic sedimentology is a new geoscience discipline that has been gaining support from industry and academia both in western countries and in China.Seismic sedimentology is closely related to seismic stratigraphy and sequence stratigraphy,with an emphasis on study of sedimentary rocks and depositional processes.Under current technology,seismic sedimentology is an integration of seismic lithology and seismic geomorphology.The procedure is benefited from a technical breakthrough that images seismically-thin beds by phantom mapping within a time-equivalent seismic stratigraphic framework,which makes a better use of seismic horizontal resolution power.Ninety-degree phasing and stratal slicing are two key,practice and economic techniques.In China,new developments of seismic sedimentology in near future may occur in seismic lithologic methods,seismic depositional models,and study guidelines that are tailored for different types of non-marine basins.更多还原