羊拉—西范坪地区斑岩型铜矿找矿模型及预测评价
发布时间：2018-08-04 15:29
【摘要】：研究区位于特提斯-喜马拉雅构造域东部“三江”构造带中南段,处于几大板块结合带交汇部位,义敦岛弧南端,金沙江结合带以东,甘孜—理塘结合带西侧。近年来该区域大型及超大型斑岩型铜矿床的发现使得该区备受关注并逐渐成为我国重要的铜金属矿集区。综合信息找矿模型是指在定性找矿模型的基础上,总结该模型涉及的找矿标志,将其作为变量,根据一定的统计方法,对成矿变量进行赋值,再通过“GIS”软件,实现定性信息转换为定量信息,以达到对研究区的综合信息预测模型进行预测评价。本文收集整理了研究区内已有的地质、物探、化探、遥感资料,对研究区成矿地质背景、典型矿床特征、区域成矿规律进行研究,总结区域找矿模型,并通过编制数字化基础图件,结合“GIS”软件,将各种类型的数据进行综合整理、叠加,筛选有利成矿地段,划出成矿远景区。主要取得成果如下:(1)对研究区内典型的斑岩型铜矿进行资料收集整理,以及野外实地踏勘,对典型矿床的地层、构造、岩浆岩、矿体矿化特征、蚀变分带等进行了详细地研究,建立了不同成矿带上不同类型的斑岩型铜矿典型矿床的找矿模型。(2)搜集了研究区物探、化探、遥感等相关数据,对其进行异常处理后得出研究区斑岩型铜矿床的分布与异常的联系,建立找矿标志。(3)在综合信息找矿模型建立后,运用矿产资源定量评价方法,对综合信息找矿模型中的各个变量进行评价并赋值。将研究区按照成矿带的不同划分出来,通过特征分析法对其不同的模型进行分别的评价与赋值,最后运用“GIS”将各个成矿要素信息相叠加,提出预测远景区。通过以上研究,对研究区的地质背景、区域地质数据进行了收集总结,并提出了区域内典型矿床的找矿标志,由此推广到整个研究区上,对研究区以后的斑岩型铜矿找矿有一定的指示作用。最后根据对已建立的综合信息找矿模型进行权重赋值,一共确定了5处远景区分别是中心绒-羊拉远景区、香格里拉远景区、木里-西范坪-宁蒗远景区、稻城省母-麦洼远景区、稻城蒙自-茶花-麦日远景区。
[Abstract]:The study area is located in the middle and south section of the "Sanjiang" structural belt in the eastern Tethys Himalayan tectonic domain. It is located at the intersection of several major plate conjunctions, the southern end of the Yidun Island Arc, the east of the Jinsha River junction belt, and the west side of the Ganzi-Litang junction belt. In recent years, the discovery of large and super-large porphyry copper deposits in the region has attracted much attention and gradually become an important copper ore concentration area in China. The comprehensive information prospecting model is to sum up the prospecting criteria involved in the model on the basis of the qualitative prospecting model, take it as a variable, assign the metallogenic variable according to a certain statistical method, and then pass "GIS" software. The qualitative information is transformed into the quantitative information in order to predict and evaluate the comprehensive information prediction model in the study area. In this paper, the existing geological, geophysical, geochemical and remote sensing data in the study area are collected and sorted out. The metallogenic geological background, typical ore deposit characteristics and regional metallogenic regularity in the study area are studied, and the regional ore-prospecting models are summarized. By compiling digital basic maps and combining with "GIS" software, all kinds of data are comprehensively arranged, superposed, favorable ore-forming areas are screened, and ore-forming scenic spots are delineated. The main achievements are as follows: (1) the typical porphyry copper deposits in the study area are collected and sorted, and the field exploration is carried out. The strata, structures, magmatic rocks, mineralization characteristics of orebodies and alteration zones of typical deposits are studied in detail. The prospecting models of typical deposits of porphyry copper deposits in different metallogenic zones are established. (2) relevant data of geophysical prospecting, geochemical exploration, remote sensing and so on are collected. The relationship between the distribution and anomaly of porphyry copper deposits in the study area is obtained, and the prospecting criteria are established. (3) after the establishment of the comprehensive information prospecting model, the quantitative evaluation method of mineral resources is used. Each variable in the comprehensive information prospecting model is evaluated and assigned. The study area is divided according to the metallogenic belt, and its different models are evaluated and assigned by the method of characteristic analysis. Finally, the information of each metallogenic element is superimposed by "GIS", and the prediction of the scenic spot is put forward. Through the above research, the geological background and regional geological data of the study area are collected and summarized, and the prospecting marks of typical deposits in the area are put forward, which are extended to the whole study area. It is useful for porphyry copper deposit prospecting in the study area. Finally, according to the weight assignment of the established comprehensive information prospecting model, a total of 5 scenic spots are identified as central velvet, Yangla, Shangri-La, Muli, Xifangping and Ninglang, respectively. Daocheng Provincial Mother-Mai WA Scenic area, Daocheng Mengzi-Camellia-Mai Yuan Scenic area.
【学位授予单位】：成都理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.41
本文编号：2164314
[Abstract]:The study area is located in the middle and south section of the "Sanjiang" structural belt in the eastern Tethys Himalayan tectonic domain. It is located at the intersection of several major plate conjunctions, the southern end of the Yidun Island Arc, the east of the Jinsha River junction belt, and the west side of the Ganzi-Litang junction belt. In recent years, the discovery of large and super-large porphyry copper deposits in the region has attracted much attention and gradually become an important copper ore concentration area in China. The comprehensive information prospecting model is to sum up the prospecting criteria involved in the model on the basis of the qualitative prospecting model, take it as a variable, assign the metallogenic variable according to a certain statistical method, and then pass "GIS" software. The qualitative information is transformed into the quantitative information in order to predict and evaluate the comprehensive information prediction model in the study area. In this paper, the existing geological, geophysical, geochemical and remote sensing data in the study area are collected and sorted out. The metallogenic geological background, typical ore deposit characteristics and regional metallogenic regularity in the study area are studied, and the regional ore-prospecting models are summarized. By compiling digital basic maps and combining with "GIS" software, all kinds of data are comprehensively arranged, superposed, favorable ore-forming areas are screened, and ore-forming scenic spots are delineated. The main achievements are as follows: (1) the typical porphyry copper deposits in the study area are collected and sorted, and the field exploration is carried out. The strata, structures, magmatic rocks, mineralization characteristics of orebodies and alteration zones of typical deposits are studied in detail. The prospecting models of typical deposits of porphyry copper deposits in different metallogenic zones are established. (2) relevant data of geophysical prospecting, geochemical exploration, remote sensing and so on are collected. The relationship between the distribution and anomaly of porphyry copper deposits in the study area is obtained, and the prospecting criteria are established. (3) after the establishment of the comprehensive information prospecting model, the quantitative evaluation method of mineral resources is used. Each variable in the comprehensive information prospecting model is evaluated and assigned. The study area is divided according to the metallogenic belt, and its different models are evaluated and assigned by the method of characteristic analysis. Finally, the information of each metallogenic element is superimposed by "GIS", and the prediction of the scenic spot is put forward. Through the above research, the geological background and regional geological data of the study area are collected and summarized, and the prospecting marks of typical deposits in the area are put forward, which are extended to the whole study area. It is useful for porphyry copper deposit prospecting in the study area. Finally, according to the weight assignment of the established comprehensive information prospecting model, a total of 5 scenic spots are identified as central velvet, Yangla, Shangri-La, Muli, Xifangping and Ninglang, respectively. Daocheng Provincial Mother-Mai WA Scenic area, Daocheng Mengzi-Camellia-Mai Yuan Scenic area.
【学位授予单位】：成都理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.41
【参考文献】
相关期刊论文 前7条
1 李文昌;刘学龙;曾普胜;尹光侯;;云南普朗斑岩型铜矿成矿岩体的基本特征[J];中国地质;2011年02期
2 王世称，陈永清;成矿系列预测的基本原则及特点[J];地质找矿论丛;1994年04期
3 莫宣学,董国臣,赵志丹,周肃,王亮亮,邱瑞照,张风琴;西藏冈底斯带花岗岩的时空分布特征及地壳生长演化信息[J];高校地质学报;2005年03期
4 尹静;徐伯恩;罗诚;尹光候;;云南羊拉铜矿成因新认识及勘查技术模型[J];矿产与地质;2011年06期
5 马淑珍;综合信息矿产预测回顾与展望[J];世界地质;1995年04期
6 李光军,谭康华,张世权,黄定柱,孟青;普朗铜矿找矿标志及找矿模型[J];云南地质;2005年02期
7 尹光候;杨淑胜;;中甸雪鸡坪斑岩铜矿地质及找矿远景[J];云南地质;2008年01期
相关博士学位论文 前1条
1 王正海;云南鹤庆北衙富碱斑岩型金矿综合信息找矿模型及预测评价[D];中国地质大学;2004年
，本文编号：2164314
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