CAJ | 학술논문

在1∶5万土壤测量和矿产重点检查的基础上，对塔布格地区的AP22号金异常结合成矿地质特征开展了研究，发现该Au异常元素组合配套好，特征显著，多元素异常空间结构与其他成型金矿床地球化学异常空间结构可对比，可见该异常区具备较好的找金矿前景。该金异常空间分布严格受上二叠统方山口组地层控制，金矿化体主要赋存在英安质火山尘埃凝灰岩内。该地区晚二叠世属活动大陆边缘的火山弧，阿拉善变质基底在该时期受到中亚造山带碰撞造山作用的强烈影响和改造，发生物质再循环而形成喷出岩，成矿作用亦随之发生。尽管如此，在该地区的地质找矿历来都未给予古生代地层足够的重视。因此，在阿拉善地块区今后的找矿科研工作中，应注意加强对海西-印支期喷出岩含矿性的评价。
재1∶5만토양측량화광산중점검사적기출상，대탑포격지구적AP22호금이상결합성광지질특정개전료연구，발현해Au이상원소조합배투호，특정현저，다원소이상공간결구여기타성형금광상지구화학이상공간결구가대비，가견해이상구구비교호적조금광전경。해금이상공간분포엄격수상이첩통방산구조지층공제，금광화체주요부존재영안질화산진애응회암내。해지구만이첩세속활동대륙변연적화산호，아랍선변질기저재해시기수도중아조산대팽당조산작용적강렬영향화개조，발생물질재순배이형성분출암，성광작용역수지발생。진관여차，재해지구적지질조광력래도미급여고생대지층족구적중시。인차，재아랍선지괴구금후적조광과연공작중，응주의가강대해서-인지기분출암함광성적평개。
Based on the 1∶50 000 scale soil measurement and priority examination of minerals ,researches on the anomaly of AP22 in the Tabuge District and the metallogenic geological characteristics are carried out .The results showed that this Au anomaly has a good cross combination ,a remarkable characteristic and a good comparison of its spatial structure of multielement anomalies with those of geochemical anomalies in molding gold deposits , indicating this area has good prospecting potentials for gold deposits .The spatial distribution of this Au anomaly is strictly con-trolled by the strata of Fangshankou Formation ,Upper Permian.Gold mineralization body is hosted mainly in the dacit-ic volcanic dust tuff .The study area is located in volcanic arc along the active continental margin at late Permian ,the Alxa metamorphic basement was affected and reformed by the collision orogeny of Central Asian orogenic belt ,the ex-trusive rock was formed in the material recycling process ,in which mineralization also happened .Even so,no attention has been paid to the paleozoic strata in this area in prospecting and exploration ,so the paper holds the point that more attention should be paid to the bearing potentiality evaluation in Hercynian-Indosinian extrusive rocks in future pros-pecting and exploration work in the district .