CAJ | 학술논문

近年来，西南太平洋地区，特别是巴布亚新几内亚已经成为世界范围内寻找铜金矿的热点地区之一，在这里连续发现了几个世界级的大型金矿和大型铜金矿。利用遥感和地理信息系统技术，对研究区提取线、环构造，岩性、地层等遥感地质信息，建立研究区成矿预测单元。基于ETM+光谱信息与蚀变矿物组合，利用比值分析和主成分分析法对预测单元进行蚀变遥感异常信息提取，结合巴布亚新几内亚火山岛弧、弧—陆碰撞带等其他特殊的地质构造环境，分析并建立了综合信息找矿标志及成矿找矿模型。据此，在研究区内分别圈定了3个等级的找矿预测远景区，包括4个1级、4个2级及2个3级预测远景区。
근년래，서남태평양지구，특별시파포아신궤내아이경성위세계범위내심조동금광적열점지구지일，재저리련속발현료궤개세계급적대형금광화대형동금광。이용요감화지리신식계통기술，대연구구제취선、배구조，암성、지층등요감지질신식，건립연구구성광예측단원。기우ETM+광보신식여식변광물조합，이용비치분석화주성분분석법대예측단원진행식변요감이상신식제취，결합파포아신궤내아화산도호、호—륙팽당대등기타특수적지질구조배경，분석병건립료종합신식조광표지급성광조광모형。거차，재연구구내분별권정료3개등급적조광예측원경구，포괄4개1급、4개2급급2개3급예측원경구。
In recent years, the Southwest Pacific area, especially Papua New Guinea, has already become one of the hot spots in the worldwide search for copper-gold deposits. Several world-class large gold deposits and large copper-gold deposits have been found. By using remote sensing and GIS technology, the authors extracted the alteration information and geological information of linear-ciccular structure, lithology and strata in the study area, analyzed and built up the metallogenic prognostic units. Based on the correla?tive spectral information between ETM+data and the alteration mineral combination, the authors extracted remote sensing alteration and abnormal information for the prognostic units by ratio and PCA methods. In combination with the volcanic island arc and arc-continental collision zone as well as other special geological tectonic environments in Papua New Guinea, the indicators for ore de?posits and the metallogenic model were analyzed and established. On such a basis, the authors delineated prognostic prospective areas at three levels, which include four grade 1 areas,four grade 2 areas and two grade 3 areas.