基于遥感的福建紫金山地区矿化蚀变信息提取与分析
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摘要
以福建省紫金山地区为研究区,以ETM与SPOT、SAR遥感数据为数据源,通过主成分分析、波段比值、线性增强、阈值分割、滤波分析等方法,分析研究区的地质构造特征,研究其矿化蚀变分布情况,提取该地区重要成矿区域的矿化蚀变信息.运用多源数据叠加技术,建立紫金山矿区铜、金的找矿标志,并对照已知矿床的地质、物化探特征及矿化蚀变信息,优选出9个有利找矿地段和区域,为进一步地质找矿工作提供了重要的参考依据.
Combining with existing exploration data and taking Fujian Zijin mountain as the study area,based on ETMSPOT and SAR remote sensing data,mineralization alteration information in the important metallogenic area was extracted and geological structure characteristics were analyzed and alteration distribution was studied by applying the methods as principal component analysis,band ratio,linear enhancement,threshold segmentation,filter analysis and so on. Taking GIS technology to integrate the geological data of the study area,the remote sensing interpretation map,and the mineralization alteration map were. Prospecting targets were optimized by comparing the geological,geophysical and geochemical characteristics and mineralization alteration information,researching variety techniques and methods of remote sensing image processing,using remote sensing interpretation. The prospecting mark of copper and gold in the study area was established,further selecting the 9 best ore prospecting areas and regions,providing an important reference for the next step of geological prospecting.
Combining with existing exploration data and taking Fujian Zijin mountain as the study area,based on ETMSPOT and SAR remote sensing data,mineralization alteration information in the important metallogenic area was extracted and geological structure characteristics were analyzed and alteration distribution was studied by applying the methods as principal component analysis,band ratio,linear enhancement,threshold segmentation,filter analysis and so on. Taking GIS technology to integrate the geological data of the study area,the remote sensing interpretation map,and the mineralization alteration map were. Prospecting targets were optimized by comparing the geological,geophysical and geochemical characteristics and mineralization alteration information,researching variety techniques and methods of remote sensing image processing,using remote sensing interpretation. The prospecting mark of copper and gold in the study area was established,further selecting the 9 best ore prospecting areas and regions,providing an important reference for the next step of geological prospecting.
引文
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[11]荆凤,陈建平.矿化蚀变信息的遥感提取方法综述[J].遥感信息,2005(2):62-65.
[12]方洪宾,张玉群,陈薇.中国西部重要成矿带遥感找矿异常提取的方法研究[J].国土资源遥感,2003,57(3):50-53.
[13]张玉君,杨建民,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.
[14]张保平,张玉明.遥感蚀变信息提取方法在西天山班禅沟一带铜、铁矿找矿中的应用[J].矿产与地质,2007,21(1):90-93.
[15]余先川,熊利平.遥感技术在地质找矿中的应用[J].地质学刊,2015,39(2):263-276.
[16]陈华慧.遥感地质学[M].北京:地质出版社,1984:177-186.
[17]韩玲,谢秋昌.利用遥感技术对新疆西天山地区矿化蚀变信息的提取[J].遥感信息,2007(6):50.
[18]王日冬,邢立新.矿床蚀变信息的遥感提取方法[J].世界地质,2000,19(4):397-401.
[19]王晓鹏,谢志清,伍跃中. ETM图像数据中矿化蚀变信息的提取——以西昆仑塔什库尔干地区为例[J].地质与资源,2002,11(2):119-122.
[20]刘福江.遥感与化探数据融合技术在金矿预测中的应用[J].地质与勘探,2007,43(3):74-77.
[2]CROSTA A,MOORE J McM. Enhancement of Landsat thematic mapper imagery for residual soil mapping in SW Minais Gerais State,Brazil:a prospecting case history in Greenstone belt terrain[C]∥Proceedings of the 7th ERIM Thematic Conference:Remote sensing for explorationgeology. 1989:1173-1187.
[3] LOUGHLIN W. Principal component analysis for alteration mapping[J]. Photogrammetric Engineering and Remote Sensing,1991,57(9):1163-1169.
[4] KAUFMANN H. Mineral exploration along the Aqaba Levant structure by use of TM data[J]. International Journal of Remote Sensing,1988,9:1639-1685.
[5]何金国,胡德永.从TM图像中直接提取金矿化信息[J].遥感技术与应用,1995,10(3):51-54.
[6]张玉君,杨建民.基岩裸露区蚀变岩遥感信息的提取方法[J].国土资源遥感,1998,36(2):46-53.
[7]张远飞,吴健生.基于遥感图像提取矿化蚀变信息[J].有色金属矿产与勘查,1999,8(6):604-606.
[8]张玉君,陈薇. ETM+(TM)蚀变遥感异常提取方法研究与应用[J].国土资源遥感,2003,56(2):44-48.
[9] Bhadra B K,SUPARN Pathak,KARUNAKARG,et al. ASTER data analysis for mineral potential mapping around sawarmalpura area,central rajasthan[J]. Indian Society of Remote Sensing,2012,41(2):391-404.
[10]王建平.基于遥感的河南卢氏西部地区蚀变信息提取与分析[J].地球信息科学,2007,9(6):111-115.
[11]荆凤,陈建平.矿化蚀变信息的遥感提取方法综述[J].遥感信息,2005(2):62-65.
[12]方洪宾,张玉群,陈薇.中国西部重要成矿带遥感找矿异常提取的方法研究[J].国土资源遥感,2003,57(3):50-53.
[13]张玉君,杨建民,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.
[14]张保平,张玉明.遥感蚀变信息提取方法在西天山班禅沟一带铜、铁矿找矿中的应用[J].矿产与地质,2007,21(1):90-93.
[15]余先川,熊利平.遥感技术在地质找矿中的应用[J].地质学刊,2015,39(2):263-276.
[16]陈华慧.遥感地质学[M].北京:地质出版社,1984:177-186.
[17]韩玲,谢秋昌.利用遥感技术对新疆西天山地区矿化蚀变信息的提取[J].遥感信息,2007(6):50.
[18]王日冬,邢立新.矿床蚀变信息的遥感提取方法[J].世界地质,2000,19(4):397-401.
[19]王晓鹏,谢志清,伍跃中. ETM图像数据中矿化蚀变信息的提取——以西昆仑塔什库尔干地区为例[J].地质与资源,2002,11(2):119-122.
[20]刘福江.遥感与化探数据融合技术在金矿预测中的应用[J].地质与勘探,2007,43(3):74-77.