摘要
根据老厂地区遥感图像上环形影像特征及对应地面环形构造的产出地质构造环境分析，结合岩浆岩的发现及围岩蚀变、矿床地质、地球化学特征等，证实该环形影像为隐伏花岗岩体上侵、成矿热液上涌形成的环形构造的反映。老厂银铅矿床不是火山岩矿床，而是与隐伏岩体有关的中偏高温热液的多因复成矿床，并伴有银铅锌和铜金两种矿床产出。通过预测，在矿区深部已新找到了中型以上的铜矿床及小型以上的金矿床。
Abstract Based on features of circular images of MSS, tectonic surroundings, features of veins, surrounding alteration, ore deposit geology and geochemical data, the anthor inferred that the circular feature of the Laochang area resulted from both concealed granites intrusing and hydrothermal solutions uprising. The silver-lead ore deposit is not a volcanic deposit but a mid-hydrothermally polygenetic compound type. It is associated with the concealed granite body and has two types of Ag-Pb-Zn and Au-Cu deposits. According to the prognosis, a new Au-Cu ore deposit had been prospected in the depths of the mining district.
出处
《国土资源遥感》
CSCD
1994年第1期23-28,共6页
Remote Sensing for Land & Resources
