93頁
提要
吉林渾春小西南岔一農(nóng)坪地區(qū)為延邊東部最東端，金(銅金)
資源是吉林省最具勘查潛力的地區(qū)之一。屬環(huán)太平洋成礦帶的
外帶，即大陸邊緣活動(dòng)帶。其成礦地球動(dòng)力學(xué)環(huán)境與太平洋板
塊的俯沖相關(guān)聯(lián)。該區(qū)中生代火山一巖漿活動(dòng)頻繁，構(gòu)造情況
復(fù)雜，成礦地質(zhì)條件有利，分布著大大小小的與火山一次火山
巖型有關(guān)的金/銅金礦床(礦點(diǎn))數(shù)十處。該區(qū)各單位已作了
大量的地質(zhì)、遙感、地球物理和勘查地球化學(xué)等礦產(chǎn)勘查研究，
但缺乏系統(tǒng)的綜合分析。若應(yīng)用傳統(tǒng)的資料處理方法，將是一
件非常復(fù)雜、繁瑣工作。本文以研制典型礦床地質(zhì)模型為基礎(chǔ)，
以總結(jié)區(qū)域金(銅金)礦床(礦點(diǎn))的時(shí)空重現(xiàn)規(guī)律為前提，
對(duì)“地質(zhì)、地球物理、勘查地球化學(xué)及遙感”綜合成礦信息進(jìn)
行了有力度的二次開發(fā)，利用GIS方法建立了綜合成礦信息找
礦模型，實(shí)施金(銅金)勘查靶區(qū)預(yù)測(cè)。通過研究，共圈出預(yù)
測(cè)勘查靶區(qū)n處，其中一級(jí)預(yù)測(cè)靶區(qū)6處，二級(jí)預(yù)測(cè)靶區(qū)5處。
總結(jié)了GSI應(yīng)用于中大比例尺礦產(chǎn)勘查靶區(qū)預(yù)測(cè)的一些方法經(jīng)
驗(yàn)，達(dá)到了預(yù)期的目的。
關(guān)鍵詞:GSI找礦模型勘查靶區(qū)預(yù)測(cè)小西南岔

目錄
第一章區(qū)域地質(zhì)背景·········............................................
第一節(jié)古生代地層及巖石························，················，
一五道溝群的巖石特征·········································
二、五道溝群巖石化學(xué)及微量元素特征·················，
三、區(qū)內(nèi)二疊系地層巖石特征及含礦性··················
第二節(jié)古生代巖漿巖及特征·····································，
一、古生代巖石類型和基本特征·····························
二、古生代巖石地球化學(xué)特征·································
三、古生代花崗巖系的成巖構(gòu)造環(huán)境······················
第三節(jié)中生代及新生代地層和巖石·························
一、中生代地層及巖石······································，·····
二、中生代巖石······························，························
三、新生代地層和巖石···········································
四、第四系······························································
第四節(jié)構(gòu)造體系···························································
一、東西向構(gòu)造體系··········，·····································
二、南北向構(gòu)造體系···············································
三、新華夏系構(gòu)造體系······，····································
四、北西向及J匕北西向構(gòu)造····································
五、北東向構(gòu)造·······················································
第二章區(qū)域成礦條件··············································..··......
第一節(jié)地層與巖金成礦的關(guān)系·································
一、古生界地層與巖金成礦的關(guān)系························
二、中、新生界地層與巖金成礦的關(guān)系················
第二節(jié)侵入巖與成礦的關(guān)系····································
一、古生代、中生代侵入雜巖與成礦的關(guān)系········
二、巖漿演化、成因與成礦···································
第三節(jié)構(gòu)造與成礦的關(guān)系········································
一、區(qū)域構(gòu)造演化··················································
二、基底對(duì)成礦的影響··········································
第三章典型礦床地質(zhì)特征··········································
第一節(jié)小西南岔淺成系脈型銅金礦······················
一、礦體地質(zhì)···························································
二、礦石物質(zhì)成分、組構(gòu)及成礦階段····················
三、圍巖蝕變·······························，···························
四、礦體與脈巖·······················································
五、成礦深度·······································，···················
六、成礦時(shí)代···························································
第二節(jié)農(nóng)坪脈型金銅礦···············..