遥感技术在矿产远景调查工作中的应用——以内蒙古莫力达瓦旗巴彦街地区为例
|
摘要
工作区所在的大兴安岭北段地区,由于地面披覆物的影响,地质体在遥感影像上的区分度降低,一般认为遥感技术难以发挥作用.但是对矿调工作来说,抓住与矿产分布最为密切的线、环形构造和遥感蚀变异常两方面的内容最为关键,而这两方面的内容受地面披覆物的影响相对较小.在巴彦街矿调项目中,首先对工作区进行不同尺度的线、环形构造解译,运用比值-主成分分析方法提取蚀变异常.综合两方面的内容,并结合化探异常圈定了重点工作区,经探槽工作验证,具有较好的找矿前景.
Due to heavy coverage in the northern Daxinganling region, it is difficult to discriminate the geological bodies on the remote sensing images. The remote sensing technique is commonly considered helpless. However, for mineral prospecting work, the key is to collect the information related with mineralization, such as linear or circular structures and alteration anomalies, which are less affected by the ground coverage. Based on the mineral survey in Bayanjie area, the linear/circular structures in different scales are interpreted first, and then the alteration anomalies are extracted with ratios-principal component analysis. On this basis, integrating geochemical anomalies, the key areas for further study are delineated. The exploring prospect is verified by trench analysis.
Due to heavy coverage in the northern Daxinganling region, it is difficult to discriminate the geological bodies on the remote sensing images. The remote sensing technique is commonly considered helpless. However, for mineral prospecting work, the key is to collect the information related with mineralization, such as linear or circular structures and alteration anomalies, which are less affected by the ground coverage. Based on the mineral survey in Bayanjie area, the linear/circular structures in different scales are interpreted first, and then the alteration anomalies are extracted with ratios-principal component analysis. On this basis, integrating geochemical anomalies, the key areas for further study are delineated. The exploring prospect is verified by trench analysis.
引文
[1]朱亮璞,承继成,潘德扬,等.遥感图象地质解译教程[M].北京:地质出版社,1981:83—96.
[2]丁家瑞.关于遥感技术在地质工作中应用的一些问题思考[J].国土资源遥感,1996(2):1—9.
[3]李廷祺.岩浆期后矿床的成矿原理与环形构造成矿[J].国土资源遥感,1998(4):54—58.
[4]秦晓光,赵不亿,李甫安.环形构造成矿预测定量分析——以桂西北地区金矿预测为例[J].国土资源遥感,1993(2):54—60.
[5]万初霞,王佰义,张杰,等.嫩江断裂带的主要特征及其初步认识[J].黑龙江国土资源,2010,4.
[6]陈江,王安建.先进星载热发射和反射辐射仪(ASTER)——地质学家的最佳选择[J].地质通报,2006,25(5):649—651.
[7]陈永清,赵鹏大.综合致矿地质异常信息提取与集成[J].地球科学——中国地质大学学报,2009,34(2):325—335.
[8]张玉君,曾朝铭,陈薇.ETM+(TM)蚀变遥感异常提取方法研究与应用——地质依据和波谱前提[J].国土资源遥感,2002,54(4):30—36.
[9]Crosta A P,De Souza F C R,Azevedo F,et al.Targeting key alteration minerals in epithermal deposits in Patagonia,Argentina,using ASTER imageryand principal component analysis[J].Int J Remote Sensing,2003,24(21):4233—4240.
[10]沈利霞,刘丽萍,苏新旭,等.不同植被覆盖率地区遥感矿化蚀变提取研究[J].现代地质,2008,22(2):293—298.
[11]张玉君,曾朝铭,陈薇.ETM+(TM)蚀变遥感异常提取方法研究与应用——方法选择和技术流程[J].国土资源遥感,2003,56(2):44—50.
[12]王润生,熊盛青,聂洪峰,等.遥感地质勘查技术与应用研究[J].地质学报,2011,85(1):1699—1743.
[2]丁家瑞.关于遥感技术在地质工作中应用的一些问题思考[J].国土资源遥感,1996(2):1—9.
[3]李廷祺.岩浆期后矿床的成矿原理与环形构造成矿[J].国土资源遥感,1998(4):54—58.
[4]秦晓光,赵不亿,李甫安.环形构造成矿预测定量分析——以桂西北地区金矿预测为例[J].国土资源遥感,1993(2):54—60.
[5]万初霞,王佰义,张杰,等.嫩江断裂带的主要特征及其初步认识[J].黑龙江国土资源,2010,4.
[6]陈江,王安建.先进星载热发射和反射辐射仪(ASTER)——地质学家的最佳选择[J].地质通报,2006,25(5):649—651.
[7]陈永清,赵鹏大.综合致矿地质异常信息提取与集成[J].地球科学——中国地质大学学报,2009,34(2):325—335.
[8]张玉君,曾朝铭,陈薇.ETM+(TM)蚀变遥感异常提取方法研究与应用——地质依据和波谱前提[J].国土资源遥感,2002,54(4):30—36.
[9]Crosta A P,De Souza F C R,Azevedo F,et al.Targeting key alteration minerals in epithermal deposits in Patagonia,Argentina,using ASTER imageryand principal component analysis[J].Int J Remote Sensing,2003,24(21):4233—4240.
[10]沈利霞,刘丽萍,苏新旭,等.不同植被覆盖率地区遥感矿化蚀变提取研究[J].现代地质,2008,22(2):293—298.
[11]张玉君,曾朝铭,陈薇.ETM+(TM)蚀变遥感异常提取方法研究与应用——方法选择和技术流程[J].国土资源遥感,2003,56(2):44—50.
[12]王润生,熊盛青,聂洪峰,等.遥感地质勘查技术与应用研究[J].地质学报,2011,85(1):1699—1743.