CAJ | 학술논문

陕西柞水县冷水沟地区中酸性小岩体发育,与之相关的矿产丰富。为加速冷水沟地区找矿工作的突破,应用WorldView-I,ASTER等多源遥感数据开展大比例尺遥感地质解译。厘定了斜长花岗岩、闪长岩、石英闪长岩和花岗岩等4类不同岩性的侵入体,线性断裂构造、断裂破碎带及构造密集带等3类遥感线性构造以及环形构造的遥感地质特征；通过对区内蚀变矿物的分类及光谱特征的分析,应用主成分分析方法直接提取了区内与矽卡岩化有关的“榴石类矿物-透闪石-透辉石-阳起石”和“绿泥石-绿帘石-阳起石-透闪石-透辉石”2类遥感蚀变矿物组合异常。遥感地质特征揭示,冷水沟岩体深部具有较大的岩浆穹窿,外围存在隐伏岩体,遥感异常信息矿致性明显。通过综合分析,在研究区内预测了阳沟凹-吊庄梁和青定坪2个遥感找矿预测区。
협서작수현랭수구지구중산성소암체발육,여지상관적광산봉부。위가속랭수구지구조광공작적돌파,응용WorldView-I,ASTER등다원요감수거개전대비례척요감지질해역。전정료사장화강암、섬장암、석영섬장암화화강암등4류불동암성적침입체,선성단렬구조、단렬파쇄대급구조밀집대등3류요감선성구조이급배형구조적요감지질특정；통과대구내식변광물적분류급광보특정적분석,응용주성분분석방법직접제취료구내여석잡암화유관적“류석류광물-투섬석-투휘석-양기석”화“록니석-록렴석-양기석-투섬석-투휘석”2류요감식변광물조합이상。요감지질특정게시,랭수구암체심부구유교대적암장궁륭,외위존재은복암체,요감이상신식광치성명현。통과종합분석,재연구구내예측료양구요-조장량화청정평2개요감조광예측구。
Located in Zhashui County of Shaanxi Province, the Lengshuigou polymetallic concentration area is rich in mineral resources related to intermediate-acid small intrusive bodies. In order to get a breakthrough of mineral exploration, the authors carried out large-scale geological survey of remote sensing based on high resolution and hyperspectral data, such as WorldView -I and ASTER. According to the survey results, four kinds of intrusive bodies with different lithologies and three types of linear structures as well as circular structures were interpreted from remote sensing images. Based on the classification of the altered minerals and analysis of the features of spectra, the authors extracted two kinds of remote sensing anomalies related to skarnization by using principal component analysis. The remote sensing geological features show that there exists a relatively large magmatic dome at the depth of the Lengshuigou body, that hidden rock bodies are distributed around the dome, and that ore -forming information of remote sensing anomalies is very obvious. Through a comprehensive analysis, two prospecting targets of remote sensing were delineated in the study area.