沉积与特提斯地质2011，Vol.31Issue(4)：34-39,6.
湘中地区下寒武统烃源岩沉积环境及其特征
Sedimentary environments of the Lower Cambrian source rocks in central Hunan
摘要
Abstract
Tectonically, central Hunan lies on the southeastern margin of the middle-upper Yangtze plate. During the Early Cambrian, this region was in a relatively stable cratonic basin. The integration of upwelling oceanic currents, sea-level rises and anoxic events gave rise to the formation of the favourable environments for the generation of source rocks. Throughout the Early Cambrian, the central Hunan region was once developed as the anoxic stagnant basin above the continental shelf, and composed of a succession of black deposits comprising black carbonaceous tabular shales and siliceous-carbonaceous mudstones. The black deposits extend from the central Hunan region to the whole southeastern margin of the middle-upper Yangtze plate, implying that the study area was then enriched in hydrocarbons, and thus has great hydrocarbon potential. This region is selected as a key area not only for basic geological survey and oil and gas exploration, but also for the exploration of shale gas.关键词
烃源岩/沉积环境/岩相古地理/湘中地区/早寒武世Key words
source rock/ sedimentary environment/ sedimentary facies and palaeogeography/ central Hunan/ Early Cambrian分类
天文与地球科学引用本文复制引用
梁薇,牟传龙,周恳恳,葛祥英..湘中地区下寒武统烃源岩沉积环境及其特征[J].沉积与特提斯地质,2011,31(4):34-39,6.基金项目
国家重大科技专项“全国油气基础地质编图”(2008ZX05043-005)、中国地质调查局项目“中国岩相古地理编图”(1212010916060) （2008ZX05043-005）
