地质论评2018,Vol.64Issue(1):62-76,15.DOI:10.16509/j.georeview.2018.01.005
碳酸盐台地的类型、特征和沉积模式——兼论华北地台寒武纪陆表海—淹没台地的沉积样式
The Types, Characteristics and Depositional Models of Carbonate Platform: Implications for Cambrian Sedimentary Patterns of Epeiric-drowned Carbonate Platform in North China
摘要
Abstract
With the systematic investigation and interpretation of modern carbonate depositional environment and the deepening understanding of carbonate sedimentary principle,a series of carbonate depositional models have been established since 1960s,especially the models built by Wilson and Tucker are widely recognized and used.However,the epeiric and drowned platform failed to give sufficient attention compared with rimmed shelf and ramp.Unlike the past,the current sea level is relatively too low to develop the widespread epeiric sea.However,in geological history,the epeiric seas once covered a wide range of cratonic areas and became one of the most important sites for carbonate deposits in geological history.Based on the previous results,the five types of carbonate platforms,i.e.rimmed shelf,ramp,epeiric,isolated and drowned platform,have been described and discussed in great detail,with emphasis on the depositional model of the epeiric and drowned platform.The tidal fiat deposits in a large scale,the wide ranging oolitic shoal,the fiat-pebble conglomerates and frequent drowning event of Cambrian in North China provide an excellent example for sedimentary patterns of epeiric-drowned carbonate platform.These examples and research not only show the complexity of carbonate sedimentary environment and sedimentary process,but also provide important clues in understanding of sedimentary principle and interpretation of sedimentary environment.关键词
碳酸盐台地/陆表海/寒武系/华北地台/沉积模式Key words
Carbonate platform/Epeiric platform/Cambrian/North China/sedimentary model引用本文复制引用
王龙,吴海,张瑞,李昌伟..碳酸盐台地的类型、特征和沉积模式——兼论华北地台寒武纪陆表海—淹没台地的沉积样式[J].地质论评,2018,64(1):62-76,15.基金项目
本文为国家自然科学基金资助项目(编号:41472090、40472065、49802012)的成果.This research is supported by the National Natural Science of China(Grant No.:41472090,40472065 and 49802012). (编号:41472090、40472065、49802012)