基于ASTER数据的巴里坤地区蚀变矿物填图及找矿
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摘要
ASTER图像被广泛应用于蚀变矿物填图中,但综合采用多种方法并对结果进行优选的研究鲜有报道。以新疆巴里坤县三道岭地区为研究区,综合采用比值法和主成分分析法处理ASTER数据进行蚀变矿物填图,利用已知矿点、小岩体、构造、化探异常等信息对各种方法提取的遥感异常结果进行对比、筛选,进而选取最优结果,之后结合地质、化探异常综合分析圈定了15处靶区,通过对其中9处靶区进行野外检查发现铜、金矿化点7处。结果表明多种蚀变矿物填图方法对比、优选较单一处理方法更为有效。
ASTER(Advanced Spaceborne Thermal Emission and Reflection Radiometer)has been used extensively in alteration mineral mapping.However,using multi-methods and comparing the results to select the optimal areas,have rarely been reported.Sandaoling in Balikun County,Xinjiang was taken as the study area.Both band ratio and principal component analysis were adopted to map alteration minerals using ASTER data.Multi-information such as ore points,small intrusions,structure,geochemical anomalies were then applied to compare with the remote sensing anomalies to obtain the best results.Fifteen ore exploration targets were located by synthetic analysis of multi-information including remote sensing anomalies,geochemical anomalies and geological data.Through ground inspection of nine targets,seven new mineralization occurrences were discovered.The result shows that using multi-methods for alteration mineral mapping and comparing the results to select the optimal ones are more effective than using a single image processing method.
ASTER(Advanced Spaceborne Thermal Emission and Reflection Radiometer)has been used extensively in alteration mineral mapping.However,using multi-methods and comparing the results to select the optimal areas,have rarely been reported.Sandaoling in Balikun County,Xinjiang was taken as the study area.Both band ratio and principal component analysis were adopted to map alteration minerals using ASTER data.Multi-information such as ore points,small intrusions,structure,geochemical anomalies were then applied to compare with the remote sensing anomalies to obtain the best results.Fifteen ore exploration targets were located by synthetic analysis of multi-information including remote sensing anomalies,geochemical anomalies and geological data.Through ground inspection of nine targets,seven new mineralization occurrences were discovered.The result shows that using multi-methods for alteration mineral mapping and comparing the results to select the optimal ones are more effective than using a single image processing method.
引文
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[12]Li Miaomiao,Xing Lixin,Pan Jun,et al.Research of Combi-natory Analysis Method in Altered Information Extraction[J].Remote Sensing Technology and Application,2011,26(3):308-313.[李淼淼,刑立新,潘军,等.组合分析蚀变信息提取方法研究[J].遥感技术与应用,2011,26(3):308-313.]
[13]Yang Fuquan,Wu Hai,Han Jinliang.Metallogenic Series andMetallogenic Egularity of Metallic Ore Deposits in East Zhun-geer,Xinjiang[J].Xinjiang Geology,2001,19(1):54-58.[杨富全,吴海,韩金良.新疆东准噶尔金属矿床成矿系列及成矿规律[J].新疆地质,2001,19(1):54-58.]
[14]Lu Yanming,Zhang Yujie,Pan Mao,et al.Types and Geolog-ical Characteristics of Gold Deposits in East Junggar,Xinjiang[J].Acta Geoscientica Sinica,2010,31(3):434-442.[路彦明,张玉杰,潘懋,等.新疆东准噶尔地区金矿类型、地质特征[J].地球学报,2010,31(3):434-442.]
[15]Aleks K,Simon O.ASTER Mineral Index Processing Manual[M].Remote Sensing Applications Geoscience Austrilia,2004.
[16]Rowan L C,Mars J C.Lithologic Mapping in the MountainPass,California Area Using Advanced Spaceborne ThermalEmission and Reflection Radiometer(ASTER)Data[J].Re-mote Sensing of Environment,2003,84(3):350-366.
[17]Mars J C,Rowan L C.Regional Mapping of Phyllic-and Ar-gillic-altered Rocks in the Zagros Magmatic Arc,Iran,UsingAdvanced Spaceborne Thermal Emission and Reflection Radi-ometer(ASTER)Data and Logical Operator Algorithms[J].Geosphere,2006,2(3):161-186.
[18]Singh A,Harrison A.Standardized Principal Components[J].In-ternational Journal of Remote Sensing,1985,6(6):883-896.
[19]Zhang Bing,Zhou Jun,Wang Junnian.Analyses of AlterationMineral Mapping and Mineral Resources Prospecting UsingTM or ETM Data[J].Journal of Earth Sciences and Environ-ment,2008,30(3):254-259.[张兵,周军,王军年.遥感蚀变矿物填图与找矿方法[J].地球科学与环境学报,2008,30(3):254-259.]
[2]Crosta A P,Moore J M.Enhancement of Landsat ThematicMapper Imagery for Residual Soil Mapping in SW MinasGerais State,Brazil:A Prospecting Case History in Green-stone Belt Terrain[C]//Proceedings of the 7th(ERIM)Thematic Conference:Remote Sensing for Exploration Geolo-gy,1989,vol.Ⅱ,1173-1187.
[3]Zhang Yujun,Zeng Chaoming,Chen Wei.The Methods forExtraction of Alteration Anomalies from the ETM+(TM)Data and Their Application:Method Selection and Technolog-ical Flow Chart[J].Remote Sensing for Land&Resources,2003,(2):44-49.[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,(2):44-49.]
[4]Liu L,Zhuang D F,Zhou J,et al.Alteration Mineral MappingUsing Masking and Crosta Technique for Mineral Explorationin Mid-vegetated Areas:A Case Study in Areletuobie,Xin-jiang(China)[J].International Journal of Remote Sensing,2011,32(7):1931-1944.
[5]Yang Jianmin,Zhang Yujun,Yao Fojun,et al.Dominant Roleof Remote Sensing Mineral Exploration Information in theDiscovery of the Luodong Ni Deposit,Xinjiang[J].Acta Pet-rologica Sinica,2007,23(10):2647-2652.[杨建民,张玉君,姚佛军,等.遥感找矿信息在新疆罗东镍矿发现中的主导作用[J].岩石学报,2007,23(10):2647-2652.]
[6]Zhou Jun,Chen Mingyong,Gao Peng,et al.Alteration Miner-al Mapping and Multi-information Ore Prospecting in EasternJunggar,Xinjiang[J].Remote Sensing for Land&Resources,2005,(4):51-55.[周军,陈明勇,高鹏,等.新疆东准噶尔蚀变矿物填图及多元信息找矿[J].国土资源遥感,2005,(4):51-55.]
[7]Zhang Yujun,Yao Fojun.Application Study of Multi-spectralASTER Data for Determination of ETM Remote Sensing A-nomaly Property:Taking Wulonggou Region of Eastern Kun-lun Mountain Range as Example[J].Acta Petrologica Sinica,2009,25(4):963-970.[张玉君,姚佛军.应用多光谱ASTER数据对ETM遥感异常的定性判别研究——以东昆仑五龙沟为例[J].岩石学报,2009,25(4):963-970.]
[8]Lv Fengjun,Hao Yuesheng,Shi Jing,et al.Alteration RemoteSensing Anomaly Extraction based on ASTER Remote Sens-ing Data[J].Acta Geoscientica Sinica,2009,30(2):271-276.[吕凤军,郝跃生,石静,等.ASTER遥感数据蚀变遥感异常提取研究[J].地球学报,2009,30(2):271-276.]
[9]Fu B H,Zheng G D,Ninomiya Y,et al.Mapping Hydrocar-bon-induced Mineralogical Alteration in the Northern TianShan Using ASTER Multispectral Data[J].Terra Nova,2007,19(4):225-231.
[10]Rowan L C,Mars J C,Simpson C J.Lithologic Mapping of theMordor,NT,Australia Ultramafic Complex by Using the Ad-vanced Spaceborne Thermal Emission and Reflection Radiom-eter(ASTER)[J].Remote Sensing of Environment,2005,99(1):105-126.
[11]Pour B A,Hashim M.Identification of Hydrothermal Altera-tion Minerals for Exploring of Porphyry Copper Deposit U-sing ASTER Data,SE Iran[J].Journal of Asian Earth Sci-ences,2011,42(6):1309-1323.
[12]Li Miaomiao,Xing Lixin,Pan Jun,et al.Research of Combi-natory Analysis Method in Altered Information Extraction[J].Remote Sensing Technology and Application,2011,26(3):308-313.[李淼淼,刑立新,潘军,等.组合分析蚀变信息提取方法研究[J].遥感技术与应用,2011,26(3):308-313.]
[13]Yang Fuquan,Wu Hai,Han Jinliang.Metallogenic Series andMetallogenic Egularity of Metallic Ore Deposits in East Zhun-geer,Xinjiang[J].Xinjiang Geology,2001,19(1):54-58.[杨富全,吴海,韩金良.新疆东准噶尔金属矿床成矿系列及成矿规律[J].新疆地质,2001,19(1):54-58.]
[14]Lu Yanming,Zhang Yujie,Pan Mao,et al.Types and Geolog-ical Characteristics of Gold Deposits in East Junggar,Xinjiang[J].Acta Geoscientica Sinica,2010,31(3):434-442.[路彦明,张玉杰,潘懋,等.新疆东准噶尔地区金矿类型、地质特征[J].地球学报,2010,31(3):434-442.]
[15]Aleks K,Simon O.ASTER Mineral Index Processing Manual[M].Remote Sensing Applications Geoscience Austrilia,2004.
[16]Rowan L C,Mars J C.Lithologic Mapping in the MountainPass,California Area Using Advanced Spaceborne ThermalEmission and Reflection Radiometer(ASTER)Data[J].Re-mote Sensing of Environment,2003,84(3):350-366.
[17]Mars J C,Rowan L C.Regional Mapping of Phyllic-and Ar-gillic-altered Rocks in the Zagros Magmatic Arc,Iran,UsingAdvanced Spaceborne Thermal Emission and Reflection Radi-ometer(ASTER)Data and Logical Operator Algorithms[J].Geosphere,2006,2(3):161-186.
[18]Singh A,Harrison A.Standardized Principal Components[J].In-ternational Journal of Remote Sensing,1985,6(6):883-896.
[19]Zhang Bing,Zhou Jun,Wang Junnian.Analyses of AlterationMineral Mapping and Mineral Resources Prospecting UsingTM or ETM Data[J].Journal of Earth Sciences and Environ-ment,2008,30(3):254-259.[张兵,周军,王军年.遥感蚀变矿物填图与找矿方法[J].地球科学与环境学报,2008,30(3):254-259.]