河南栾川软玉(白玉)矿床特征及成因的初步研究  

Preliminary Study on the Characteristics and Genesis of Nephrite(White Jade)Deposit in Luanchuan,Henan Province

作　　者：岳紫龙 朱晓红 周小卜 刘霁霄 周世全[2] YUE Zi-long;ZHU Xiao-hong;ZHOU Xiao-bo;LIU Ji-xiao;ZHOU Shi-quan(Institute of Jewelry and Jade Carving,Nanyang Normal Uni-versity,Nanyang Henan 473061,China;The First Geological Exploration Institute of Henan Bureau of Geology and Mineral Re-sources,Nanyang Henan 473056,China)

机构地区：[1]南阳师范学院珠宝玉雕学院,河南南阳473061 [2]河南省地矿局第一地质勘查院,河南南阳473056

出　　处：《西部探矿工程》2021年第11期153-155,160,共4页West-China Exploration Engineering

基　　金：河南省高等教育教学改革研究与实践项目(2019SJGLX130);博士专项项目(ZX2016012);校级课堂教学模式改革项目(2018-JXYJKT-20);校级教研项目(2019-JXYJYB-24);校级实验室开放项目(SYKF2020098);河南省教育厅人文社科研究项目(2021—ZZJH—267)共同资助.

摘　　要：栾川软玉分布在东秦岭造山带北部,产于新元古代栾川群中部煤窑沟组上段,与蛇纹岩共生。玉矿体共有8个,呈透镜体或小脉状产出,玉石矿物成分主要为细粒透闪石,化学成分与和田白玉、国外软玉近似。蚀变主要有蛇纹石化、透闪石化等,属于多期、多方式的中低温复合变质蛇纹岩型软玉矿床。Luanchuan nephrite is distributed in the north of the East Qinling orogenic belt and occurs in the upper part of the Mei-yaogou formation in the middle of the Neoproterozoic Luanchuan Group,which is associated with serpentinite.There are 8 jade ore bodies in total,which are lenticular or veinlike.The mineral com-position of jade is mainly fine-grained tremolite,and its chemical composition is similar to Hetian white jade and foreign nephrite.The alteration of Luanchuan deposit is mainly serpentinite and tremolite,which belongs to the multi-stage and multi-mode medi-um low temperature composite serpentinite type nephrite deposit.

关 键 词：东秦岭造山带 软玉 透镜体 

分 类 号：P57[天文地球—矿物学]