青岛近岸海域表层沉积物重矿物分布及物源

刘金庆; 张勇; 印萍; 宋红瑛; 毕世普; 刘珊珊

doi:10.16562/j.cnki.0256-1492.2016.01.006

青岛近岸海域表层沉积物重矿物分布及物源

刘金庆^1,2,3,
张勇^2,3,
印萍^2,3,
宋红瑛¹,
毕世普^2,3,
刘珊珊⁴

1. 中国海洋大学海洋地球科学学院, 青岛 266100;
2. 国土资源部海洋油气资源与环境地质重点实验室, 青岛 266071;
3. 中国地质调查局青岛海洋地质研究所, 青岛 266071;
4. 厦门地质工程勘察院, 厦门 361008

基金项目:

国家自然科学基金项目(41376079)；1∶25万青岛幅海洋区域地质调查(试点)(GZH200900501)；科技部基础性专项(2013FY112200)

详细信息

作者简介:
刘金庆(1986-),男,在读博士,海洋地质学专业,E-mail:jinqingliu@hotmail.com

中图分类号: P376.3
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出版历程
- 收稿日期: 2015-05-09
- 修回日期: 2015-08-30

DISTRIBUTION AND PROVENANCE OF HEAVY MINERALS IN SURFACE SEDIMENTS OF THE QINGDAO OFFSHORE AREA

1. College of Marine Geosciences, Ocean University of China, Qingdao 266100;
2. Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071;
3. Qingdao Institute of Marine Geology, Qingdao 266071;
4. Geo-engineering Investigation Institute of Xiamen, Xiamen 361008

摘要

摘要: 对青岛近岸海域127个表层沉积物样品和周边入海河流22个表层沉积物样品重矿物分析,系统地研究了重矿物分布特征和物质来源。结果表明,研究区矿物组合为普通角闪石-绿帘石-黑云母-褐铁矿-自生黄铁矿,可划分为3个矿物分区。田横岛-千里岩岛矿物区(Ⅰ区)矿物组合为普通角闪石-绿帘石-褐铁矿-黑云母-阳起石,物源主要来自五龙河等沿岸河流,黄河物质也有贡献;崂山头东部矿物区(Ⅱ区)矿物组合为普通角闪石-绿帘石-褐铁矿-石榴子石,物源以残留沉积和沿岸侵蚀物为主;海阳-乳山近岸矿物区(Ⅲ区)矿物组合为普通角闪石-自生黄铁矿-黑云母-水黑云母-绿帘石-褐铁矿,沉积物受黄河影响显著,沿岸河流和岛屿侵蚀物也有影响。
- 重矿物 /
- 分布特征 /
- 组合分区 /
- 物源 /
- 青岛近海
Abstract: Based on the data of 127 offshore sediments and 22 river sediments from Qingdao coastal area, we studied the distribution patterns and mineral provenance of the heavy minerals. The study area is characterized by a heavy mineral assemblage consisting of hornblende-epidote-biotite-limonite-authigenic pyrite. Three mineral assemblage provinces are recognized using cluster analysis. The offshore area around the Tianheng-Qianliyan Islands (Province 1) has a hornblende-epidote-limonite-biotite-actinolite assemblage, derived mainly from the Wulong River, partly influenced by the Yellow River. The offshore area to the east of Laoshan cape (Province 2) has a hornblende-epidote-limonite-garnet assemblage, largely attributed to relict sediment and coastal erosion. The nearshore area of Haiyang-Rushan (Province 3) has a hornblende-authigenic pyrite-biotite-hydrobiotite-epidote-limonite assemblage, indicating mixed sources of the Rushan River, the Yellow River and coastal erosion, dominated by materials from the Yellow River.
- heavy mineral /
- assemblage province /
- provenance /
- Qingdao offshore

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