中国地质调查2025，Vol.12Issue(4)：36-45,10.DOI:10.19388/j.zgdzdc.2024.196
广东莲花山构造带三灶断裂带特征及活动性
Characteristics and activity of Sanzao fault zone in Lianhuashan tectonic zone of Guangdong
摘要
Abstract
Sanzao fault zone is a branch of the western beam of Lianhuashan tectonic zone,and also the extension of the fault zone on the west bank of Pearl River estuary.This fault was defined as an active fault by existing data and research.The distribution characteristics and activity of Sanzao fault zone in Hengqin area were studied through detailed field geological survey,micro-motion method,shallow seismic exploration,drilling verification and clastic rock age test.The results show that the overall strike of Sanzao fault zone is NE-NEE trending and dipping north west,which dislocated the mottled clay of the Upper Pleistocene deltaic deposits.The results of op-tically stimulated luminescence(OSL)dating of clastic rocks in the fault zone are(27.77±2.99)ka and(22.24±1.04)ka,indicating a large-scale brittle fault activity in the Late Pleistocene in Hengqin area.The research could provide references for urban construction and disaster prevention and mitigation in Guangdong-Macao in-depth cooperation zone in Hengqin area.关键词
三灶断裂带/莲花山构造带/断裂活动性/光释光/横琴地区Key words
Sanzao fault zone/Lianhuashan tectonic zone/fault activity/optically stimulated luminescence/Hengqin area分类
天文与地球科学引用本文复制引用
罗俊超,林振文,李冠华,李出安,阳峰,张翔翔..广东莲花山构造带三灶断裂带特征及活动性[J].中国地质调查,2025,12(4):36-45,10.基金项目
广东省地质勘查与城市地质专项"广东省海岸带综合地质调查——横琴新区调查示范(编号:2020-13)""广东1∶5万蓝塘、观音阁幅区域地质调查(编号:2024-01)"及"广东海陵湾海岸带综合地质调查(编号:2024-59)"联合资助. （编号:2020-13）
