柴达木盆地南缘玛兴大湾地区典型岩浆岩岩性识别研究

Interpretation of typical magmatic lithologies in Maxingdawan area at the south margin of Qaidam basin

本文运用ASTER多光谱遥感数据识别柴达木南缘玛兴大湾地区典型岩浆岩的岩性信息,分别采用光谱分析法和最小噪声变换法进行试验,可有效地识别与提取出研究区内的典型岩浆岩岩性信息;经已知地质资料和野外查证资料分析证明,用上述方法提取岩性信息的结果可靠,能为岩性填图及矿床勘查工作提供参考。

ASTER multispectral remote sensing data are applied to interpretation of typical magmatie li- thologies in Maqindawan area at south margin of Qaidam basin. The spectral analysis method and mini- mum noise transformation method （MNF） were tested. With the methods typical magmatic lithologies can be successfully extracted. Referring to geological data available and field check the methods are feasible to lithological mapping and the extracted data can be applied to field lithological mapping and ore deposit prospecting.