石油实验地质2017，Vol.39Issue(4)：498-504,526,8.DOI:10.11781/sysydz201704498
东海西湖凹陷中央反转带花港组锆石特征及物源指示意义
Characteristics of zircon in the Huagang Formation of the ccentral inversion zone of Xihu Sag and its provenance indication
摘要
Abstract
The Huagang Formation of the central inversion structural belt in the Xihu Sag is one of the most significant exploration areas of the East China Sea Basin.But currently, the research of the provenance system of Huagang Formation is relatively weak, which severely limits the studies of sand-body distribution and reservoir characteristics.The provenance characteristics of sandstones in the Huagang Formation were studied based on the zircon U-Pb dating of core samples and combined with seismic reflection features.The results show that the large sand body of Huagang Formation is composed of sandstone of three ages, which are Precambrian (accounting for the largest proportion), Paleozoic and Mesozoic.The large sand body sourced from the Precambrian in the Hupijiao reef in the north, and extended to the south through the sag.Affected by the Haijiao reef in the west and the Diaoyu Islands folding zone in the east, the provenance from the north was dominant while those in the east and west were secondary.关键词
锆石/物源/花港组/中央反转带/西湖凹陷/东海陆架盆地Key words
zircon/provenance/Huagang Formation/central inversion zone/Xihu Sag/East China Sea Basin分类
能源科技引用本文复制引用
秦兰芝,刘金水,李帅,赵洪,常吟善..东海西湖凹陷中央反转带花港组锆石特征及物源指示意义[J].石油实验地质,2017,39(4):498-504,526,8.基金项目
国家科技重大专项"东海深层低渗-致密天然气勘探开发技术"(2016ZX05027001)和国家自然科学基金(41672110)资助. （2016ZX05027001）
