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燕辽海盆中元古界下马岭组沉积期的物源性质与古地理环境
投稿时间:2020-07-10  修订日期:2020-08-04  点此下载全文
引用本文:
DOI:10.19762/j.cnki.dizhixuebao.2020289
摘要点击次数: 99
全文下载次数: 131
作者单位地址
高志勇 中国石油勘探开发研究院实验研究中心
提高石油采收率国家重点实验室中国石油勘探开发研究院 
北京学院路20号中国石油勘探开发研究院实验研究中心
王华建 中国石油勘探开发研究院实验研究中心
提高石油采收率国家重点实验室中国石油勘探开发研究院 
冯佳睿 中国石油勘探开发研究院实验研究中心
提高石油采收率国家重点实验室中国石油勘探开发研究院 
罗忠 中国石油勘探开发研究院实验研究中心
提高石油采收率国家重点实验室中国石油勘探开发研究院 
张宇航 中国石油勘探开发研究院实验研究中心
提高石油采收率国家重点实验室中国石油勘探开发研究院 
李晓红 中国石油勘探开发研究院实验研究中心
提高石油采收率国家重点实验室中国石油勘探开发研究院 
基金项目:国家重点研发计划项目(2017YFC0603101)、国家重大科技专项(2016ZX05004001)、国家自然科学基(41872125, 41530317)、中国科学院战略性先导科技专项(A类)(XDA14010101)和中国石油天然气集团公司项目(2016A-0200)资助
中文摘要:通过对河北省下花园夏家沟-古城梁剖面、怀来赵家山剖面和赤城古子坊剖面详细地质测量,分析14亿年前沉积的下马岭组岩性变化、沉积序列与海平面演化、岩石矿物组分与重矿物组合,认为下马岭组沉积时期发育温暖湿润的气候条件及多期热带风暴作用,早期的大规模风暴与浊流等事件沉积,晚期的浅海陆棚风暴岩、深水陆棚泥页岩、细粒浊积岩及安静水体的泥灰岩透镜体(灰泥饼)等沉积是对其鲜明的响应。该时期发育一次长期缓慢的海平面上升-快速海平面下降过程,内幕可细分为五次海平面升降变化,对应五个三级层序;下马岭组沉积早期的物质组分主要以砂质、泥质为主,晚期转化为以泥质、灰质、云质为主,砂质减少,两种类型的物质组合系统先后影响燕辽裂陷槽;下马岭组沉积时期,具有双物源性质,除了主要来自于东部的山海关古隆起持续供源外,晚期可能也有西部山西古陆提供物源,北部的内蒙-冀北隆起(内蒙地轴)不存在。燕辽盆地具有西陡东缓的箕状断陷盆地特征,盆地古地形、物源供给变化与多级次海平面振荡变化控制了下马岭组沉积物的时空演化特征。该认识为14亿年前华北克拉通北部燕辽盆地岩相古地理的恢复提供了重要参考。
中文关键词:下马岭组  沉积古地理  海平面变化  层序  物源体系  下花园  怀来县
 
Provenance and paleogeographic environment of the Middle Proterozoic Xiamaling formation in Yanliao Basin
Author NameAffiliationAddress
gaozhiyong Petroleum Geology Research and Laboratory Center, PetroChina Research Institute of Petroleum Exploration and Development, China
State Key Laboratory of Enhanced Oil Recovery,China 
北京学院路20号中国石油勘探开发研究院实验研究中心
wanghuajian Petroleum Geology Research and Laboratory Center, PetroChina Research Institute of Petroleum Exploration and Development, China
State Key Laboratory of Enhanced Oil Recovery,China 
fengjiarui Petroleum Geology Research and Laboratory Center, PetroChina Research Institute of Petroleum Exploration and Development, China
State Key Laboratory of Enhanced Oil Recovery,China 
luozhong Petroleum Geology Research and Laboratory Center, PetroChina Research Institute of Petroleum Exploration and Development, China
State Key Laboratory of Enhanced Oil Recovery,China 
zhangyuhang Petroleum Geology Research and Laboratory Center, PetroChina Research Institute of Petroleum Exploration and Development, China
State Key Laboratory of Enhanced Oil Recovery,China 
lixiaohong Petroleum Geology Research and Laboratory Center, PetroChina Research Institute of Petroleum Exploration and Development, China
State Key Laboratory of Enhanced Oil Recovery,China 
Abstract:Through the detailed geological survey of Xiahuayuan Xiajiagou-guchengliang outcrop, Huailai Zhaojiashan outcrop and Chicheng Guzifang outcrop in Hebei Province, the lithologic changes, sedimentary sequence and sea level evolution, rock mineral composition and heavy mineral assemblage of Xiamaling formation deposited 1.4 billion years ago are analyzed. It is considered that warm and humid climatic conditions and multi-stage tropical storms developed during the deposition of Xiamaling formation. The large-scale storm and turbidite deposition in early stage, and the shallow shelf tempestite, deep-water shelf shale, fine-grained turbidite and marl lens in quiet water in late stage are the distinct responses. During this period, a long-term slow sea-level rise and rapid sea-level decline developed, and it can be subdivided into five sea-level changes, corresponding to five third-order sequences. The material composition of Xiamaling formation is mainly sandy and argillaceous in the early stage, and it is mainly argillaceous, calcareous and dolomitic in the late stage, and the sand is reduced. The two types of material combination system successively affect the Yanliao basin. The Xiamaling formation has a dual provenance in the sedimentary period. In addition to the continuous supply from the Shanhaiguan paleouplift in the East, the Western Shanxi ancient land may also provide the provenance in the late stage, and the Inner Mongolia northern Hebei uplift (Inner Mongolia axis) does not exist in the north. Yanliao basin has the characteristics of dustpan like rift basin with steep West and gentle East. The changes of paleotopography, provenance supply and multi-level sea level oscillation control the temporal and spatial evolution of Xiamaling formation sediments. This understanding provides an important reference for the restoration of lithofacies and paleogeography of Yanliao basin in northern North China Craton 1.4 billion years ago.
keywords:Xiamaling formation  sedimentary paleogeography  sea level change  sequence  provenance system  Xiahuayuan  Huailai County
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