【作者】 孙卫东；

【导师】 王润生；

【作者基本信息】 中国地质大学（北京） ， 地图制图学与地理信息工程， 2010， 博士

【摘要】 本次研究在系统总结东天山多年来地质找矿研究工作的基础上,针对新疆东天山哈密土屋-黄山成矿带近几年来虽然研究程度较高,但存在没有大的突破的问题,提出采用遥感技术手段在东天山地区展开遥感找矿潜力评价工作,以期望能够为地质找矿工作提供遥感找矿的靶区,为该地区的地质勘查部署提供决策依据。本次研究拟从现代成矿系统理论入手,以研究区最主要的两个类型矿种:斑岩型铜矿床和岩浆型铜镍矿为主攻矿种类型,以多光谱遥感技术方法为主导,进行地、物、化、遥等多源信息综合分析的矿产资源快速评价模型研究。1.在总结分析区域成矿地质特征的基础上,深入分析研究典型矿床,采用ETM数据进行区域性的遥感地质解译与信息提取,在研究区大面积展开遥感异常提取,获取与区域成矿作用有关的蚀变遥感异常和矿物分布等信息。2.通过在典型矿床开展ASTER和HYMAP高光谱遥感矿物填图研究,针对斑岩型铜矿床和岩浆型铜镍矿中占主导地位的蚀变矿物组合,进行蚀变矿物填图,有针对性地提取蚀变遥感异常,以ASTER和HYMAP数据提取的铜矿的遥感找矿信息为标准,对比验证ETM数据蚀变遥感异常,印证其有效性。3.通过多源地学信息综合分析,综合地质、物探、化探、航磁重力等数据分析研究,分析研究区铜矿、铜镍矿的控矿要素和遥感异常的相关性规律,采用特征分析法进行矿产定位预测,圈定遥感找矿靶区和推荐遥感异常区,进行遥感找矿潜力评价,并对找矿靶区进行了验证,取得了良好的应用效果。本次研究在新疆东天山地区尝试大面积展开遥感应用研究,为矿产资源调查与评价提供遥感资料,以推动东天山土屋-黄山成矿带找铜工作合理有序的部署,以期实现该成矿带找铜工作的新突破,进而带动东天山地区乃至整个天山地区的找矿工作。更多还原

【Abstract】 On the basis of systematic summary of mineral prospecting work in the Eastern Tianshan Mountain, aiming at a breakthrough of mineral prospecting in Tuwu-Huangshan metallogenic belt in Hami area, remote sensing technology is taken to use to carry out the remote sensing mineral prospecting potential assessment in the area of Easten Tianshan Mountain, provides the exploration target area for geological prospecting and offers the decision-making support for geological exploration deployment in the area.This research is to start with the modern metallogenic system theory, considering the Porphyry Copper Deposit and Magmatic Cu- Ni Deposit as the main direction, to dominantly apply multispectral remote sensing technology to perform the research on quick assessment modeling of mineral resource by the multi-information ( geological, geophysical, geochemical and remote sensing information) comprehensive analysis.After summarizing and analyzing the regional metallogenic geological characteristics, deeply analyze and study typical deposit; making use of the ETM data to carry out the regional remote sensing geological interpretation and information extraction. This research is about to conduct the large area remote sensing anomalies extraction and capture the alteration anomalies that relevant to regional metallogenic effect and the information of mineral distribution rule.By the hyperspectral remote sensing mineral mapping research using ASTER and HYMAP data, conduct the alteration mineral mapping and extract the alteration remote sensing anomalies aiming at the dominant alteration mineral combinations in Porphyry Copper Deposit and Magmatic Cu- Ni Deposit. Considering the copper deposit remote sensing mineral prospecting information extracted from ASTER and HYMAP data as the standard, carry out the large area alteration remote sensing anomalies extraction and filtration by ETM data.By multi-resource geological information comprehensive analysis, integrating and studying the geological, geophysical, geochemical and aeromagnetic gravity data, analyze the ore-controlling factor and relativity rule of remote sensing anomalies of Copper Deposit and Cu- Ni Deposit in the study area, circle the remote sensing mineral prospecting target area and commend and predict remote sensing anomalies area, to carry out the remote sensing mineral prospecting potential assessment and choose some of the target area to make the field check. This method achieved a good application effect.Firstly experiment to do a large area remote sensing application research in Easten Tianshan Montain area, this research provide remote sensing documents for mineral resource investigation and evaluation and promote the reasonable and orderly deployment of Copper prospecting in Tuwu-Huangshan metallogenic belt in Easten Tianshan Montain, with the expectation that achieve the new breakthrough of cooper prospecting in this metallogenic belt and further promote the mineral prospecting work in Easten Tianshan Montain area, even the whole Tianshan Montain area.更多还原