Abstract：
The gold deposits in eastern Liaoning province, mainly within a succession of deformed Early Proterozoic metasediments and the granitic gneiss, were tectonically located in southwestern part of the Central Liaoning—Southern Jilin Proterozoic mobile belt, and generally hosted in the ductile and brittle-ductile shear zones of various scales. They could be categorized into three systems. The nearly E-W system included mineralized shear zones that were formed parallel to S1 (≈S0) and/or early(D3) S1-parallel shears within the Early Proterozoic metasediments along the pre-existing E-W trending regional folds over western part of the region. Veinlet-disseminated, brecciated and alterated foliation-parallel orebodies generally characterized the deposits of this system. Gold mineralization and related shearing activities were determined to have taken place during the Indosinian orogeny. The mineralized shear zones attached to the NE-SW system were S2-parallel shears, some of which might be results of reactivation of early shear zones during gold mineralization, and these events were considered to occur in the Indosinian orogeny, or last to the Yanshanian orogeny. The Dandong ductile shear zone together with its accessory structures constituted the largest gold-bearing system over eastern part of the region. The gold deposits of this system, outcropping along the major structure, were hosted in the sub-order shearing structures within the large one. These deposits made up of medium to steeply dipping auriferous quartz veins. The structural relationships and geochronological data suggested both the initiation of the large shear zone and the associated gold mineralization occurring in the Yanshanian movement. With numerous gold deposits, eastern Liaoning area occupied an important stratigical position in the geology of the Jiao-Liao craton, and provided a special case of gold occurrence contrasting with most other cratonic deposits because of relatively young gold-forming (Mesozoic) and host rocks rather old (Early Proterozoic).
Liu Ruqi,Dai Lijun,Shang Muyuan et al. MAIN SHEAR ZONES IN EASTERN LIAONING PROVINCE AND FEATURES OF SHEAR-HOSTED GOLD MINERALIZATION[J]. Chinese Journal of Geology, 2006, (2): 181-194.
2006, Vol. 
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