西永2井铁白云岩Fe同位素地球化学性质及特征  

GEOCHEMICAL BEHAVIORS AND CHARACTERISTICS OF IRON ISOTOPE IN THE FERROAN DOLOMITE FROM WELL XIYONG 2

作　　者：许红 张海洋[3] 李绪深 沈江远 马骁 付和平 张道军[4] 苏大鹏 闫桂京 董刚[2] 刘新宇[4] 闫琢玉[7] XU Hong;ZHANG Haiyang;LI Xushen;SHEN Jiangyuan;MA Xiao;FU Heping;ZHANG Daojun;SU Dapeng;YAN Guijing;DONG Gang;LIU Xinyu;YAN Zhuoyu(First Institute of Oceanography,Ministry of Natural Resources,Qingdao 266061,China;Qingdao Institute of Marine Geology,Qingdao 266071,China;Baoding Center Seismic Station,Hebei Earthquake Agency,Baoding 071000,China;Zhanjiang Branch of CNOOC(China)Ltd.,Zhanjiang 524057,China;Yangtze University,Wuhan 430100,China;China University of Petroleum(East China),Qingdao 266580,China;CNOOC EnerTech-Drilling and Production Co.,Zhanjiang 524057,China)

机构地区：[1]自然资源部第一海洋研究所,青岛266061 [2]中国地质调查局青岛海洋地质研究所,青岛266071 [3]河北省地震局保定中心台,保定071000 [4]中海石油(中国)有限公司湛江分公司,湛江524057 [5]长江大学,武汉430100 [6]中国石油大学(华东),青岛266580 [7]中海油能源发展股份有限公司工程技术分公司,湛江524057

出　　处：《海洋地质前沿》2021年第6期1-7,共7页Marine Geology Frontiers

基　　金：国家自然科学基金(41872114);国家科技基础资源调查专项课题(2017FY201407)。

摘　　要：白云岩发现于200多年前,至今仍然是地球科学研究前沿。西沙群岛白云岩研究超过35 a,发现铁白云岩10 a,属于研究热点。本文在西永2井前期铁白云岩测试研究基础之上,采集典型铁白云岩岩心样品,完成Fe同位素测试,通过对比多种地质储库Fe同位素特征,阐述定位该批测试数据的性质、特征和分析其母源,提出加强投入,与高尖石岛火山岩铁同位素测试结果地球化学特征朔源对比分析的建议。该项研究对于铁白云岩成因特征和机制研究具有重要价值。The dolomite was discovered more than 200 years ago, and its research is still one of the frontier subjects in Earth Sciences. The study of dolomite on Xisha Islands is over 35 a, and ferroan dolomite was found for 10 a, which are the research hotspots. On the basis of earlier study of dolomites in well Xiyong 2, the core samples of typical ferroan dolomite are further collected for Fe isotope analysis in this study. By comparing characteristics of Fe isotope of various geological reservoirs, the properties, characteristics and the parent sources of the Fe isotope of dolomites from well Xiyong 2 are elaborated. It is suggested to strengthen the investment and correlate the geochemical characteristics with the Fe isotope test results of the volcanic rock samples from the Gajianshi Island.This study is of great value for the study of the genetic characteristics and mechanism of ferroan dolomite.

关 键 词：西永2井 铁白云岩 高尖石岛火山岩 FE同位素 地球化学性质及特征 

分 类 号：P736.4[天文地球—海洋地质] P588.24[天文地球—海洋科学]