| 杨映春,李云平,曹有全.基于Landsat 8和高分一号卫星数据的青海巴尔达吾地区铅、镍多金属矿化信息提取[J].矿产勘查,2024,15(10):1824-1833 |
| 基于Landsat 8和高分一号卫星数据的青海巴尔达吾地区铅、镍多金属矿化信息提取 |
| Extraction of lead， nickel polymetallic mineralization information in Baldau， Qinghai based on Landsat 8 and GF-1 data |
| 投稿时间：2022-10-02 修订日期：2023-04-16 |
| DOI：10.20008/j.kckc.202410006 |
| 中文关键词: 遥感 蚀变异常 地质解译 ETM+ 青海 |
| 英文关键词: remote sensing erosion anomaly geological interpretation ETM+ Qinghai |
| 基金项目:本文受青海省省级财政资金地质勘查项目（2020021021jc012）资助。 |
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| 中文摘要: |
| 本文主要介绍在青海巴尔达吾地区通过运用美国Landsat 8（ETM+）和高分一号数据，提取了铁染遥感异常与羟基遥感异常蚀变信息，识别地层、岩体岩性信息并总结了主要地质体遥感地质特征及解译标志，同时解译出40多条线性构造及4处环形构造。结合区内地质、物化探资料，采用地质土壤（岩石）剖面、化学样等工作手段，对圈定的8处遥感蚀变异常优选了2处进行了含矿验证，在已提取的蚀变异常内发现了品位较高的铅锌矿、镍矿，空间耦合性较高。这不仅为研究区靶区圈定、地质找矿提供了依据，同时也说明遥感技术在矿产勘查中发挥着不可或缺的作用。 |
| 英文摘要: |
| This article mainly introduces that in Bardagu area of Qinghai， we extracted iron staining remote sensing anomalies and hydroxyl remote sensing anomalies alteration information by applying American landsat8（ETM+） and Gaofen-1 data， identified stratigraphy and lithology information of rock body and summarized remote sensing geological features and interpretation signs of main geological bodies， and at the same time， more than 40 linear tectonics and 4 annular tectonics are deciphered. Combined with the geological， physical and chemical exploration data in the area， using geological soil （rock） profiles， chemical samples and other means of work， the 8 remote sensing alteration anomalies circled preferably selected 2 for the verification of mineralization， and in the extracted alteration anomalies were found to have high grade lead-zinc ore and nickel ore， with high spatial coupling. This not only provides a basis for target area delineation and geological prospecting in the study area， but also indicates that remote sensing technology plays an indispensable role in mineral exploration. |
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