现代地质2011,Vol.25Issue(4):740-749,10.
云南文山官房钨矿床团山矿段围岩蚀变与矿化规律研究
Regularity of Wall Rock Alteration and Mineralization in the Tuanshan Ore Section, Guanfang Scheelite Ore Deposit, Wenshan, Yunnan
摘要
Abstract
The Wenshan scheelite ore deposit is a medium-large skarn-type scheelite deposit, which has an intense wall rock alteration and zoning evidently. According to petrography and petrochemistry of alterated rocks, combining with the data of drill hole, three alteration zones are classified from the internal to external zoning of the rock body in the Tuanshan section: phlogopition-epidotization zone→dipsidization-hopfneritation zone→for-steritation zone. Based on transfer amounts of rocks components in all kinds of alteration zones, this paper regards that A12O3, SiO2, Tfe, K2O, Na2O coming from granitic thermal water of magma immigrate and MgO, CaO coming from limestone emigrate in the process of thermal water alteration and scheelite mineralization; therefore, we could draw conclusions; scheelite mineralization mainly occurs in dipsidization and hopfneritation zone; ore body attitude is consistent with dipsidization-hopfneritation zone; scheelitee mineralization is relatively weak inforsteritation zone; mineralization can be only found scattered in the phlogopition-epidotization zone. This research would provide important theory basis for ore deposit metallogenic rule and further searching for mine in Cuanfang ore field in Wenshan.关键词
钨矿床/矿化蚀变/成矿规律/文山官房/云南Key words
scheelite deposit/ mineralization alteration/ metallogenic regularity/ Guanfang, Wenshan/ Yunnan Province分类
天文与地球科学引用本文复制引用
张亚辉,张世涛,冯明刚,刘小波,孙琦森,张博..云南文山官房钨矿床团山矿段围岩蚀变与矿化规律研究[J].现代地质,2011,25(4):740-749,10.基金项目
国家自然科学基金项目(619220090006). (619220090006)