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夏塞银铅锌矿床位于三江成矿带中北段的夏塞-连龙银锡多金属矿集区内,是该矿集区内具有代表性的大型银铅锌多金属矿床之一。该矿床为典型的受NNW向断裂构造控制的岩浆热液型多金属矿床,成矿期断裂为左行性质,后期经历了右行挤压-走滑作用(李艳军等,2012,2014a)。LA-ICPMS锆石U-Pb法厘定了矿区南部的夏塞二长花岗岩体成岩时代为103±1 Ma(MSWD=0.5),为早白垩世晚期岩浆活动产物,并
The Xia Se silver-zinc deposit is located in the Xiesai-Longlong silver-tin polymetallic ore deposit in the middle and northern part of the Sanjiang metallogenic belt and is one of the large-scale silver-lead-zinc polymetallic deposits represented in the ore-concentrating area. This deposit is a typical magmatic hydrothermal polymetallic deposit controlled by NNW fault structure. The fracture of the ore-forming stage is of the left-row type and experienced a right-lateral extrusion-strike-slip event in the late stage (Li et al., 2012, 2014a). LA-ICPMS zircon U-Pb method determined that the diagenetic age of Xiaershang granite in the southern part of the mining area was 103 ± 1 Ma (MSWD = 0.5), which was the product of magmatic activity in the late Early Cretaceous