地质论评2025，Vol.71Issue(4)：1099-1118,20.DOI:10.16509/j.georeview.2024.12.015
黑龙江省完达山地区洋板块地质重建与成矿作用
Geological reconstruction and mineralization of Oceanic Plate in Wandashan area,Heilongjiang Province
摘要
Abstract
In Wandashan area of Heilongjiang Province,developing subduction accretionary complex and Cretaceous accretionary arc,many gold,gold-copper,tin and polymetallic deposits(points)were found,which record the subduction-accretion process and metallogenic events of the Paleo-Pacific plate,and are the key areas to explore the geological reconstruction and mineralizatio in Northeast Asia.The author and others systematically combed the chronology and structural property characteristics of the matrix and rock blocks in the subduction accretionary complex zone,restored the Cretaceous accretionary arc TTG rocks,summarized the igneous characteristics in the metal deposit mining area,and then reconstructed the geology of the Paleo-Pacific ocean plate and discussed the mineralization.The results show that:① from west to east can divide the late Permian,Triassic,Jurassic,early Cretaceous subduction accretionary complex,It records the geological evolution of the Paleo-Pacific ocean plate;② The TTG rocks of the early cretaceous accretionary arc in the middle stage T2G1G2 was mainly G1,and in the late stage was mainly G2,With the trend of volcanic arc granite to the plate granite,It is revealed that the Paleo-Pacific ocean subduction plate recurred in the late Early Cretaceous;③ The igneous rocks related with metallogenic were concentrated and formed in the late Early Cretaceous,Related to the subduction and rollback event of the Paleo-Pacific plate,With high grade type I granite and high strontium low yttrium medium acid rock(Adakite,It was also translated as adakite)mainly,formed from the remelting of intra-oceanic arc crust or partial melting of subducted oceanic crust in the geological evolution of oceanic plates.关键词
黑龙江省/完达山地区/俯冲增生杂岩/成矿作用/古太平洋板块/洋板块地质Key words
Heilongjiang Province/Wandashan area/subduction accretionary complex/metallogenic action/Paleo-Pacific plate/oceanic plate geology引用本文复制引用
杜兵盈,刘宇崴,刘飞,刘勇,田世攀,李成禄,高洪岩..黑龙江省完达山地区洋板块地质重建与成矿作用[J].地质论评,2025,71(4):1099-1118,20.基金项目
本文为黑龙江省地质矿产局科研项目(编号:HKY202303)和中国地质调查局项目(编号:DD20221645)的成果. This paper is a project supported by the Bureau Geology and Mineral Resources of Heilongjiang Province(No.HKY202303),China Geological Survey(No.DD20221645) （编号:HKY202303）
