基于高分辨率遥感数据的稀有金属矿化带勘查

doi:10.6046/gtzyyg.2018.01.18

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摘要

以西昆仑大红柳滩地区花岗伟晶岩型稀有金属矿化带为研究对象,以WorldView-2高空间分辨率数据为主要信息源,在影像图制作的基础上,有针对性地进行图像增强处理,突出控矿要素和矿化信息,开展该矿种的遥感综合解译; 利用ASTER数据开展与花岗伟晶岩型稀有金属成(控)矿作用相关的异常信息提取; 配合适量的野外查证,分析其高分辨率遥感特征及成矿地质条件,建立遥感地质找矿模型。结果表明,利用高分辨率遥感卫星数据为主的数据源能够快速圈定找矿有利地段,满足西昆仑大红柳滩地区稀有金属矿勘查和资源评价需求,可为在相同或类似地区开展此类工作提供借鉴。

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	范玉海
	王辉
	杨兴科
	彭齐鸣
	秦绪文
	杨金中
	张少鹏
	谭富荣

关键词 ：高分辨率遥感, 花岗伟晶岩型, 稀有金属, 西昆仑, 大红柳滩地区, 地质找矿

Abstract：

With rare metals of granite pegmatite type in the Dahongliutan area of West Kunlun Mountains as the study object and WorldView-2 remote sensing images as the major data source, the authors drew standard image map, adopted methods of image enhancement for protruding the information of ore-controlling factors and mineralization, and finally carried out an interpretation of remote sensing for mineral resources. On the basis of alteration anomaly information extraction for rare metals of granite pegmatite type by using ASTER data and a right amount of field verification, its high-resolution remote sensing characteristics and metallogenic geological conditions were analyzed, and a remote sensing geological prospecting model was established. Tt can provide the basis for finding similar minerals in the West Kunlun metallogenic belt in future. The results show that the remote sensing technology using high resolution satellite images can be used as an effective method for detection of potential mineral resources enrichment region,which can meet the requirements of rare metal mineralization belt resources exploration and assessment in the Dahongliutan area of West Kunlun Mountains and hence deserves further promotion and application in the same area or similar areas.

Key words： high-resolution remote sensing technology granite pegmatite type rare metals West Kunlun Mountains Dahongliutan area geological prospecting

收稿日期: 2016-06-15 出版日期: 2018-02-08

TP79

基金资助:国家自然科学基金“西昆仑库地铬铁矿床铬尖晶石矿物学及其成矿机理研究”(编号: 41302051)、国家重点基础研究发展计划“973”项目“中国北方巨型砂岩Y成矿带陆相盆地沉积环境与大规模成矿作用”(编号: 2015CB453000)和中国地质调查局地质调查项目“西昆仑成矿带矿产资源遥感地质调查”(编号: 1212011120888)共同资助

作者简介:

第一作者: 范玉海(1983-),男,工程师,主要从事遥感地质、矿产地质及盆地分析研究。Email:fanyuhai2008@163.com。

引用本文:

范玉海, 王辉, 杨兴科, 彭齐鸣, 秦绪文, 杨金中, 张少鹏, 谭富荣. 基于高分辨率遥感数据的稀有金属矿化带勘查[J]. 国土资源遥感, 2018, 30(1): 128-134.
Yuhai FAN, Hui WANG, Xingke YANG, Qiming PENG, Xuwen QIN, Jinzhong YANG, Shaopeng ZHANG, Furong TAN. Application of high-resolution remote sensing technology to the prospecting for rare metal mineralization belt. Remote Sensing for Land & Resources, 2018, 30(1): 128-134.

链接本文:

https://www.gtzyyg.com/CN/10.6046/gtzyyg.2018.01.18 或 https://www.gtzyyg.com/CN/Y2018/V30/I1/128

Fig.1 研究区构造位置示意图

Tab.1 铁染异常、羟基异常、碳酸根异常的重要吸收谱带

Fig.2 花岗伟晶岩脉高分遥感影像特征

Fig.3 花岗伟晶岩脉发育区ASTER遥感异常图

Tab.2 花岗伟晶岩脉发育区ASTER遥感异常野外验证表

Fig.4 大红柳滩花岗伟晶岩脉发育区地质简图

Fig.5-1 花岗伟晶岩脉及锂辉石照片

Fig.5-2 花岗伟晶岩脉及锂辉石照片

Tab.3 花岗伟晶岩型稀有金属矿遥感地质找矿模型

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