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.
欧阳成甫. 云南澜沧老厂银铅矿床环形构造研究及其地质效果[J]. 国土资源遥感, 1994, 6(1): 23-28.
Ouyang Chengpu. A STUDY OF THE CIRCULAR FEATURE IN LAOCHANG SILVER-LEAD ORE AREA OF YUNNAN AND ITS GEOLOGIC EFPECT. REMOTE SENSING FOR LAND & RESOURCES, 1994, 6(1): 23-28.