The Woxi Mining District in Hunan Province, South China, hosts numerous high tonnage gold, stibnite, and tungsten strata-bound deposits. Our research focuses on the geological characteristics of the Tanghuping and Xintianwan faults in the Tanghuping Mining Section, within the Woxi Mining District. The Woxi Mining District exposes mainly slate, with interbedded quartz sandstone and clastic rocks, cut by three faults: the Tanghuping, Xintianwan, and Woxi faults. We test the hypothesis that the mineralization in this district is structurally controlled, related to motion along these faults. While the presence of Tanghuping and Xintianwan faults in the Tanghuping Mining Section has not been confirmed, the proposed faults are interpreted to be intimately related to mineralization. The results of previous field works have corroborated the location of the Tanghuping and Xintianwan faults and suggest that zones of high strain coincide with these faults. However, recent core logging data do not show evidence of fracture zones at the expected depth. It is therefore still unclear if the high strain is related to the presence of the faults or if it is the result of fold-related interlayer flexural slip. Microstructural analysis is used to further characterize strain-induced recrystallization textures and sense of shear near and within the interpreted fault zones. Understanding this relationship is important to assist exploration in detecting ore systems on a regional scale and identify the most profitable areas.
Genetic differentiation among Hemarthria compressa populations in south China and its genetic relationship with H. japonica
