CAJ | 학술논문

上黑龙江盆地位于大兴安岭北部,是一个由陆源碎屑物填充和沉积而成的中生代构造型断陷盆地,其形成和演化受蒙古—鄂霍茨克造山带制约.盆地内赋存有石油、天然气、煤、金、银、铜及其他一些非金属矿产.通过分析盆地的形成和发展演化过程,结合目前盆地内已发现的金矿床(点)成矿特征,认为在地层和构造等地质特征方面,盆地在以长缨—依林—龙河一带为界的东西两侧存在差异性,因此在矿床成因和成矿特征方面有所不同.通过总结东西区金矿床(点)的成矿特征,指出在西部区应主要寻找以老基底为成矿围岩的铜、金矿床和以二十二站组地层为围岩的蚀变岩型和石英脉型金矿床;在东部区应主要寻找以火山岩地层为围岩的蚀变岩型岩金矿床,同时兼顾西部区所有的岩金矿床类型.研究认为,东部区具有较大的找矿潜力,是寻找大型—超大型岩金矿床的有利地区.
상흑룡강분지위우대흥안령북부,시일개유륙원쇄설물전충화침적이성적중생대구조형단함분지,기형성화연화수몽고—악곽자극조산대제약.분지내부존유석유、천연기、매、금、은、동급기타일사비금속광산.통과분석분지적형성화발전연화과정,결합목전분지내이발현적금광상(점)성광특정,인위재지층화구조등지질특정방면,분지재이장영—의림—룡하일대위계적동서량측존재차이성,인차재광상성인화성광특정방면유소불동.통과총결동서구금광상(점)적성광특정,지출재서부구응주요심조이로기저위성광위암적동、금광상화이이십이참조지층위위암적식변암형화석영맥형금광상;재동부구응주요심조이화산암지층위위암적식변암형암금광상,동시겸고서부구소유적암금광상류형.연구인위,동부구구유교대적조광잠력,시심조대형—초대형암금광상적유리지구.
The Upper Heilongjiang Basin is a faulted basin in the northern of Daxinganling Montains.It is a down-faulted basin of Mesozoic tectonic by the terrigenous clastic filler and the deposition,its formation and evolution is constrainted by Mongolia-Okhotsk orogen.The basin exists petroleum,natural gas,coal,gold,silver,copper and other non-metallic mineral.Through the analysis of the formation and development of the basin evolution and min-eralization characteristics of gold deposits (dot) had been found in the basin,we suggested that there is diffrence on the east and west part of the basin(devided by the Changying-Yilin-Longhe) on formation,structure and other geological features,which caused the difference in the genesis and metallogenic characteristics.Based on the sum-mary of the mineralization characteristics on the east and west part of the basin,we come to the conclusion that the exploration work shoud concentrated on looking for the old basement wall rock mineralization Cu,Au deposit and a 22 station Formation for the surrounding rock in the eastern area;but altered rocks and quartz vein type gold deposits in the western area;and volcanic strata surrounding rock altered rock type gold deposit in the eastern region,as well as rock gold deposits including rock gold deposit types in the western district.The eastern region has large prospecting potential,which is the favorable areas to find a large and a very large rock gold deposits.