国土资源遥感
國土資源遙感
국토자원요감
REMOTE SENSING FOR LAND & RESOURCES
2015年
4期
85-92
,共8页
付长亮%杨清华%姜琦刚%王梦飞%蒋校
付長亮%楊清華%薑琦剛%王夢飛%蔣校
부장량%양청화%강기강%왕몽비%장교
津巴布韦大岩墙%ETM+%ZY-1 02C%遥感地质解译%境外地质调查
津巴佈韋大巖牆%ETM+%ZY-1 02C%遙感地質解譯%境外地質調查
진파포위대암장%ETM+%ZY-1 02C%요감지질해역%경외지질조사
Great Dyke in Zimbabwe%ETM+%ZY -1 02 C%remote sensing geological interpretation%geological survey abroad
津巴布韦大岩墙(简称“大岩墙”)由形成于25亿a前的镁铁质-超镁铁质杂岩构成,盛产铂、钯、金、铬、镍、铜等矿产资源,是我国境外地质矿产资源勘查的重点地区之一。为适应我国矿产资源勘查开发“走出去”战略的需要,为大岩墙地区基础地质研究和找矿勘查快速提供基础资料,利用ETM+卫星数据对大岩墙的几何要素和地质特征进行了系统解译,从遥感地质角度对大岩墙的岩浆房划分方案进行了验证;利用ZY-102C高分辨率卫星数据对塞卢奎次岩浆房的形态、岩性、内部构造及矿业活动进行了详细解译和分析,提出其东西两侧围岩的不同是导致其变形强度差异的重要原因,超镁铁质岩层应是寻找铬铁矿的主要岩层;并探讨了遥感技术在境外地质矿产勘查领域的“五尺度”工作方法,为遥感技术在境外地质调查中的应用奠定了技术基础。
津巴佈韋大巖牆(簡稱“大巖牆”)由形成于25億a前的鎂鐵質-超鎂鐵質雜巖構成,盛產鉑、鈀、金、鉻、鎳、銅等礦產資源,是我國境外地質礦產資源勘查的重點地區之一。為適應我國礦產資源勘查開髮“走齣去”戰略的需要,為大巖牆地區基礎地質研究和找礦勘查快速提供基礎資料,利用ETM+衛星數據對大巖牆的幾何要素和地質特徵進行瞭繫統解譯,從遙感地質角度對大巖牆的巖漿房劃分方案進行瞭驗證;利用ZY-102C高分辨率衛星數據對塞盧奎次巖漿房的形態、巖性、內部構造及礦業活動進行瞭詳細解譯和分析,提齣其東西兩側圍巖的不同是導緻其變形彊度差異的重要原因,超鎂鐵質巖層應是尋找鉻鐵礦的主要巖層;併探討瞭遙感技術在境外地質礦產勘查領域的“五呎度”工作方法,為遙感技術在境外地質調查中的應用奠定瞭技術基礎。
진파포위대암장(간칭“대암장”)유형성우25억a전적미철질-초미철질잡암구성,성산박、파、금、락、얼、동등광산자원,시아국경외지질광산자원감사적중점지구지일。위괄응아국광산자원감사개발“주출거”전략적수요,위대암장지구기출지질연구화조광감사쾌속제공기출자료,이용ETM+위성수거대대암장적궤하요소화지질특정진행료계통해역,종요감지질각도대대암장적암장방화분방안진행료험증;이용ZY-102C고분변솔위성수거대새로규차암장방적형태、암성、내부구조급광업활동진행료상세해역화분석,제출기동서량측위암적불동시도치기변형강도차이적중요원인,초미철질암층응시심조락철광적주요암층;병탐토료요감기술재경외지질광산감사영역적“오척도”공작방법,위요감기술재경외지질조사중적응용전정료기술기출。
The Great Dyke in Zimbabwe, which possesses abundant platinum, palladium, gold, chromium, nickel, copper and some other resources, is a major intrusion of mafic and ultramafic rocks formed at 2. 5 Ga and one of the key regions for mineral exploration abroad. In order to attain the aim of"going out" for China’ s mineral exploration and provide basic geological information of geological survey and mineral exploration in the area of the Great dyke, the authors carried out the systematic interpretation of geometric elements and geological characteristics of the Great Dyke in Zimbabwe based on the ETM+ data and verified the division of the magma chamber of the Dyke. Combined with the ZY-1 02C high spatial resolution satellite data, the authors identified and interpreted the shape, lithology, interior structures and mining activities of the Selukwe Subchamber. The results achieved show that, because of the difference between the west and east host rocks, the Selukwe Subchamber underwent deformations of different intensities. The ultramafic layers should be regarded as the major layers for the chromite exploration. Furthermore, the authors have discussed the method of "five scales" of the remote sensing technique in the geological survey abroad and provided the technical support for the remote sensing application.