东海陆架盆地及其邻域岩浆岩时空分布特征

杨传胜; 李刚; 杨长清; 龚建明; 廖晶

doi:10.3724/SP.J.1140.2012.03125

东海陆架盆地及其邻域岩浆岩时空分布特征

杨传胜^1,2,
李刚^1,2,
杨长清^1,2,
龚建明^1,2,
廖晶^1,2

1 国土资源部海洋油气与环境地质重点实验室, 青岛 266071;
2 青岛海洋地质研究所, 青岛 266071

基金项目:

全国油气资源战略选区调查与评价国家专项(第二批)(2009GYXQ05-01)

详细信息

作者简介:
杨传胜(1984-),男,研究实习员,主要从事地震资料解释与构造研究,E-mail:ychuansheng@cgs.cn

中图分类号: P736.22
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出版历程
- 收稿日期: 2012-01-30
- 修回日期: 2012-04-22

TEMPORAL AND SPATIAL DISTRIBUTION OF THE IGNEOUS ROCKS IN THE EAST CHINA SEA SHELF BASIN AND ITS ADJACENT REGIONS

1 Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071;
2 Qingdao Institute of Marine Geology, Qingdao 266071

摘要

摘要: 基于二维地震资料和重磁资料的处理、解释,研究了东海陆架盆地及其邻域岩浆岩时空分布特征,并收集整理浙闽地区相关地质资料,将海陆连为一体进行综合解释。浙闽陆区岩浆岩非常发育,并且大致沿28°N为界,北侧岩浆岩大体呈NE向带状分布,南侧则呈NNE向带状分布,且埋深较浅,甚至在有些地区出露地表,其分布特征受区内大断裂的控制。综合地震、重磁资料研究认为,海域岩浆岩多分布在隆起部位或凹陷的边缘位置,发育情况与断裂的展布密切相关。收集整理了海域钻遇岩浆岩的15口钻井资料,沿自SW至NE一线,对岩浆岩的同位素年龄进行了统计分析,并结合其侵入关系对岩浆活动进行了期次和展布特征的划分,初步划分为4期:燕山期、四川期、华北期和喜马拉雅期;4带:浙闽隆起区、中部隆起区、钓鱼岛隆褶带和琉球岛弧带。
- 地震资料 /
- 重磁资料 /
- 岩浆岩 /
- 时空分布 /
- 东海陆架盆地
Abstract: Two-dimensional seismic and gravity-magnetic data were processed and interpreted by the authors in order to study the temporal and spatial distribution of igneous rocks in the East China Sea Shelf Basin and its adjacent regions. Data from the land, mainly from Zhejiang and Fujian provinces were collected for the purpose of correlation. Igneous rocks are widely distributed in Zhejiang and Fujian. They occur in a NE trending to the north and NNE trending to the south of 28 N. They are shallowly buried and controlled mainly by major faults. The igneous rocks offshore are mainly distributed upon uplifts or along the fault boundaries of depressions. Temporally, the igneous rocks in the study area can be subdivided into four stages, i.e the Yanshan stage, Sichuan stage, Huabei stage and Himalayan stage and spatially occur in four zones, say the Zhe-Min uplifted zone, Central uplifted zone, Diaoyu Island folded uplifting zone and Ryukyu arc zone.
- seismic data /
- gravity and magnetic data /
- igneous rock /
- temporal and spatial distribution /
- East China Sea shelf basin

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