首页 | 本学科首页   官方微博 | 高级检索  
     检索      

The Discovery of Diamonds in Chromitites of the Hegenshan Ophiolite, Inner Mongolia, China
作者姓名:HUANG Zhu  YANG Jingsui  Paul T. ROBINSON  ZHU Yongwang  XIONG Fahui  LIU Zhao  ZHANG Zhongming  XU Wei
作者单位:1 CARMA, State Key Laboratory of Continental Tectonics and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing100037, China. 2 China University of Geosciences, Beijing100083, China.3 Inner Mongolia No.9 Geology Mineral Exploration and Development Institute, Xilinhaote 026000, Inner Mongolia, China. 4 Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing100037, China. 5 101Geological Team of Sichuan Bureau of Geology and Mineral Resources, Chengdu 610017, Sichuan, China
基金项目:This research was funded by grants from the National Natural Science Foundation of China (No. 40930313) and the China Geological Survey (No. 12120114057701, No. 12120114061801 and No. 12120114061501).
摘    要:Diamond,moissanite and a variety of other minerals,similar to those reported from ophiolites in Tibet and northern Russia,have recently been discovered in chromitites of the Hegenshan ophiolite of the Central Asian Orogenic Belt,north China. The chromitites are small,podiform and vein-like bodies hosted in dunite,clinopyroxene-bearing peridotite,troctolite and gabbro. All of the analysed chromite grains are relatively Al-rich,with Cr# 100Cr/(Cr+Al)] of about 47–53. Preliminary studies of mainly disseminated chromitite from ore body No. 3756 have identified more than 30 mineral species in addition to diamond and moissanite. These include oxides(mostly hematite,magnetite,rutile,anatase,cassiterite,and quartz),sulfides(pyrite,marcasite and others),silicates(magnesian olivine,enstatite,augite,diopside,uvarovite,pyrope,orthoclase,zircon,sphene,vesuvianite,chlorite and serpentine) and others(e.g.,calcite,monazite,glauberite,iowaite and a range of metallic alloys). This study demonstrates that diamond,moissanite and other exotic minerals can occur in high-Al,as well as high-Cr chromites,and significantly extends the geographic and age range of known diamond-bearing ophiolites.

关 键 词:diamond  moissanite  deep  mantle  minerals  chromitites  Hegenshan  ophiolite  Inner  Mongolia
收稿时间:2014/10/1 0:00:00
修稿时间:2015/1/31 0:00:00

The Discovery of Diamonds in Chromitites of the Hegenshan Ophiolite, Inner Mongolia, China
Authors:HUANG Zhu  YANG Jingsui  Paul T ROBINSON  ZHU Yongwang  XIONG Fahui  LIU Zhao  ZHANG Zhongming and XU Wei
Institution:Key Laboratory of Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences;China University of Geosciences;Inner Mongolia No.9 Geology Mineral Exploration and Development Institute;Institute of Mineral Resources,Chinese Academy of Geological Sciences;101 Geological Team of Sichuan Bureau of Geology and Mineral Resources;
Abstract:
Keywords:diamond  moissanite  deep mantle minerals  chromitites  Hegenshan ophiolite  Inner Mongolia
本文献已被 CNKI 等数据库收录!
点击此处可从《Acta Geologica Sinica》浏览原始摘要信息
点击此处可从《Acta Geologica Sinica》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号