中国科技核心期刊
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日本科学技术振兴机构数据库(JST)
青海省那尔扎金矿床地质特征及控矿因素
- 张俊海|马元林|赵伟|莫延强
- 作者单位：
- 青海省地质调查局|青海省地质调查局|青海省地质调查局|青海省地质调查局
基金项目：
- 青海省地质勘查基金项目（2017042129kc079）
详细信息：
- 作者简介：
- 张俊海（1990—），男，青海民和人，工程师，硕士，从事矿产调查评价工作；西宁市城西区胜利路22 号地矿花园C座508室，青海省地质调查局，810001；E-mail：903183233@qq.com
- 通讯作者：
- isnull
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Geological characteristics and ore-controlling factors of Naerzha Gold Deposit,Qinghai Province
- English Author：
- Qinghai Geological Survey|Qinghai Geological Survey|Qinghai Geological Survey|Qinghai Geological Survey
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
那尔扎金矿床位于东昆仑成矿带东段，矿区内已发现5条金矿化带，共圈定9条金矿体。通过分析成矿地质背景、矿区及矿床地质特征，进而探讨了控矿因素。分析表明：矿体主要赋存在上二叠统格曲组中，围岩蚀变主要有绢云母化、硅化、黄铁矿化、碳酸盐化、褐铁矿化、高岭土化、绿泥石化，其中硅化、黄铁矿化、褐铁矿化与成矿关系密切；断裂构造是主要控矿因素，矿化带和矿体主要受北西西向断裂构造控制。
关键词:
那尔扎金矿床；地质特征；控矿因素；断裂构造；青海省
Abstract:
Naerzha Gold Deposit is located at the east part of East Kunlun metallogenic belt.In the gold district,5 gold mineralization belts are discovered and 9 gold ore bodies are delineated.By analyzing ore-forming geologic settings,deposit and district geologic characteristics,ore-controlling factors are discussed.The analysis shows that the ore bodies mainly occur in Upper Permian Gequ Formation; surrounding rock alteration mainly includes sericitization,silicification,pyritization,carbonatization,limonitization,kaolinization and chloritization; and among them,silicification,pyritization and limonitization are closely related to mineralization; fault is the main orecontrolling factor; metallogenic belts and ore bodies are mainly controlled by NWW fault structure.
Keywords:
Naerzha Gold Deposit;geological characteristics;ore-controlling factors;fault structure;Qinghai Province
