中国科技核心期刊
美国化学文摘社（CAS）数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
甘肃昌马地区水系沉积物地球化学异常特征与找矿远景
- 作者：
- 刘永彪|李省晔|孔维琼|李昱星
- 作者单位：
- 甘肃省地质矿产勘查开发局第四地质矿产勘查院|甘肃省地质矿产勘查开发局第四地质矿产勘查院|甘肃省地质矿产勘查开发局第四地质矿产勘查院&兰州新区自然资源局|甘肃省地质矿产勘查开发局第四地质矿产勘查院
基金项目：
- 中国地质调查局项目（DD20160012）
详细信息：
- 作者简介：
- 刘永彪（1992—），男，甘肃会宁人，工程师，从事矿产地质调查工作；甘肃省酒泉市肃州区解放路52号，甘肃省地质矿产勘查开发局第四地质矿产勘查院，735000；E-mail：840614630@qq.com
- 通讯作者：
- isnull
- 此文档没有上传！
Geochemical characteristics of stream sediments and prospecting direction in the Changma area,Gansu Province
- English Author：
- Fourth Institute of Geological and Mineral Exploration of Gansu Provincial Bureau of Geology and Mineral Resources|Fourth Institute of Geological and Mineral Exploration of Gansu Provincial Bureau of Geology and Mineral Resources|Fourth Institute of Geological and Mineral Exploration of Gansu Provincial Bureau of Geology and Mineral Resources&Lanzhou New Area County Natural Resources Bureau|Fourth Institute of Geological and Mineral Exploration of Gansu Provincial Bureau of Geology and Mineral Resources
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
昌马地区位于北祁连造山带西段与阿尔金断裂的交汇部位，断裂非常发育，区域内已发现金属矿床主要为金矿床。为了实现找矿突破，在昌马地区开展了1∶5万水系沉积物测量。结果显示：Au、As、Sb、Cu、Mn等元素相对富集，分异性好，成矿潜力大；元素组合可以分为4组，其中Au-Ag-As-Sb-Hg-Pb为典型的中低温元素组合，反映研究区内Au成矿过程中热液活动较为频繁；圈定综合异常34处，初步认为其中6处成矿性较好，并优选2处进行了评价及异常查证；结合成矿地质条件、成矿规律、异常查证结果等，圈定找矿远景区4处，为研究区进一步找矿指明了方向。
关键词:
地球化学特征；综合异常；水系沉积物测量；找矿远景区；昌马地区
Abstract:
The Changma area is located at the intersection of the Arguin fault and the western segment of the North Qilian Orogenic Belt,where faults are developed and the major metal deposits discovered are gold deposits.In order to make a breakthrough in prospecting,1∶50 000 stream sediment survey were carried out in the Changma area.The results show that Au,As,Sb,Cu and Mn are relatively enriched with good variation and mineralization potentials;element combination can be pided into 4 groups,and among them Au-Ag-As-Sb-Hg-Pb is typical medium-low temperature element combination,indicating frequent hydrothermal activities during the mineralization process in the research area;34 comprehensive anomalies are delineated and preliminary analysis takes 6 of them as favorable for mineralization before 2 are selected for evaluation and verification for anomaly;based on mineralization geological conditions,mineralization rules and anomaly verification results,4 prospecting prospects are delineated,pointing the direction for prospecting in the research area.
Keywords:
geochemical characteristic;comprehensive anomaly;stream sediment survey;prospecting prospect;Changma area
