地质通报2023，Vol.42Issue(12)：2132-2141,10.DOI:10.12097/j.issn.1671-2552.2023.12.009
大兴凸起北部D1钻孔岩心特征及第四纪地层划分
Core characteristics and stratigraphic classification of Dl borehole in the north of Daxing uplift
摘要
Abstract
In order to establish the Quaternary stratigraphic framework of Daxing uplift,We have studied the stratigraphic division,sedimentary facies and chronostratigraphy of the D1 borehole core in the north of Daxing uplift.The loose sediments of D1 can be divided into three lithological sections in this paper.The lithological sections were sedimentary environment of diluvial fan,braided river,the flood plain and riverbed,respectively.The results of the paleomagnetic test show that the polarity boundaries of B/M and M/G in D1 borehole are 89.5 m and 132.25 m.According to the magnetostratigraphy,combined with the lithostratigraphic property and 14C dating data,we figured the boundaries of N/Q,QP1/Qp2 and Qp2/Qp3 at the depth of 137.9 m,91.4 m and 34.4 m,respectively.The research results provide basic data for the division and correlation study of Quaternary regional strata in this area.关键词
磁性地层/第四纪/大兴凸起北部/AMS 14C测年/OSL测年/地质调查工程Key words
magnetostratigraphy/Quaternary/northern Daxing uplift/AMS 14C dating/OSL dating/geological survey engineering分类
天文与地球科学引用本文复制引用
石光耀,潘志龙,李庆喆,吕可欣,张金龙,张欢,张运强,张鹏程,闫浩..大兴凸起北部D1钻孔岩心特征及第四纪地层划分[J].地质通报,2023,42(12):2132-2141,10.基金项目
中国地质调查局项目《河北1∶5万大厂回族自治县等三幅第四系覆盖区地质填图》(编号:DD20160060)、《河北1∶5万沙流河等四幅区域地质调查》(编号:DD20160042)、国家自然科学基金联合基金《西部重点成矿带关键元素超常富集时空分布规律与战略资源效应》(批准号:U2244219)、中央级公益性科研院所基本科研业务费项目(编号:41573044) （编号:DD20160060）
