西昆仑老并一赞坎矿集区铁矿成矿条件遥感研究.pdf

《西昆仑老并一赞坎矿集区铁矿成矿条件遥感研究.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、第46卷第2期西北地质V01．46NO．220l3年(总l87期)NoRTHWESTERNGEoLoGY20l3(Sllml87)西昆仑老并一赞坎矿集区铁矿成矿条件遥感研究王俊峰(中煤航测遥感局遥感应用研究院，陕西西安710054)摘要：通过Aster图像的遥感矿化蚀变信息提取和Worldview-Ⅱ图像的遥感解译，总结适合高寒、高海拔地区沉积变质型铁矿的遥感技术方法。基于矿集区铁矿成矿背景分析，针对Aster、Worldview-II图像特点和铁矿矿化主要类型，提出以铁染异常为主的遥感矿化蚀变信息提取的技术方法，并对其可靠性进行评价；充分利用

2、Worldview-Ⅱ高分辨率图像的优势，解译成矿作用的地层岩性、构造、侵入岩，特别是矿体、矿化带的解译，较之以往图像更为明显；通过成控矿条件遥感分析，建立铁矿遥感找矿模型。圈定矿集区除已知矿床外的铁矿矿化带4处，部分经野外验证和已知矿床的对比分析是可靠的。通过对老并一赞坎矿集区铁矿成矿条件遥感研究，确定老并赞坎矿集区具有良好的找矿前景。关键词：高分辨率图像；矿化蚀变信息提取；成矿信息遥感解译；西昆仑；老并一赞坎矿集区。中图分类号：P627文献标识码：A文章编号：1009—6248(2013)02—0167-07RemoteSensingStu

3、dyofMetallogenicConditioninWestKunlunLaobingoZankanOreCOncentratiOnAreaWANGJun-feng(RemoteSensingApplicationInstituteofARSC，Xi'an710054，China)Abstract：Thispapersummarizedremotesensingtechnologymethodsuitablefortheironoreofsedimentarymetamorphictypeinarctic—alpinehighaltitude

4、localitiesthroughmineralizedalterationinformationextractionofremotesensingfromAsterimageandremotesensinginterpretationfromWorldview-IIimage．Basedonthebackgroundanalysisofironoremineralizationintheoreconcentrationarea，andinviewofAsterandWorldview—IIimagefeaturesandmajortypeso

5、fironoremineralization，thetechnologyandmethodformineralizedal—terationinformationextractionofremotesensingmainlyfocusingonironstainedanomalyisputforward．Meanwhile，itsreliabilityisanalyzed．Theauthormadefulluseoftheadvantagesofthehigh-resolutionimagesfromWorldview-Uandinterpre

6、tedthemetallogenesisincludinglithology，structure，intrusiverock，particularlytheorebodyandmineralizedzone，whicharemuchclearerthanpreviousimages．Prospectingmodelofironoreremotesensingissetupthroughremotesensinganalysisofore-controllingconditions．Fourironoremineralizationbeltsex

7、cepttheknownironoredepositaredelineated．ThecomparisonanalysisiSreliablebetweenpartofthefieldconfirmationandtheknownmineraldeposit．ItiSconcludedthatLaobing—ZankanoreCOD-一centrationareaboastsgoodprospectingpotentialthroughtheremotesensingstudyofironoreminerogeneticconditionint

8、heLaobing—Zankanoreconcentrationarea．收稿日期：2012—10—16；修回日期：2013·02—12基金项目：中国