【作者】 张东风；

【导师】 柳建新； 刘鸿福；

【作者基本信息】 中南大学 ， 地球探测与信息技术， 2010， 博士

【摘要】 针对我国西部地区“大矿少、小矿多”的现状，在国家《新疆优势矿资源勘查评价研究一克朗盆地找矿靶区优选及大型铜矿定位预测》(2001BA609A-07-03)项目的资助下，本文开展地球探测信息在阿尔泰山(南缘)大型矿床成矿预测中的应用研究，对新疆找矿的突破，具有重要的理论意义和重大的实用价值。通过研究开发和使用先进的GeoMedia Professional6.0GIS系统，综合利用先进的软件集成技术，以MSSQLSERVER2000大型数据库管理软件为支撑，对阿尔泰地区地质、地球物理、地球化学、遥感等数据及科研成果、图形、图像进行集成和管理，建立了多源数据库，数据库组织结构清晰、合理、适用。采用先进的开发平台VB.Net开发了十个数据管理模块，使数据传输、图像的处理和拼接更加快速和精确有效。系统除能直接调用Oasis montaj物化探综合处理软件外，还能利用MAPGIS系统的一些特殊功能直接有效的对物化探数据进行处理和集成。本文选择赋予权数区域广的模糊数学作为数学模型，发挥其判断、评价、推理、决策和控制的功能，同时又能克服个别地区勘探程度低的缺点。在研究直接找矿信息和间接找矿信息的关联以及它们之间的信息转换规律的基础上，设计了提取地质体信息的25个变量。充分考虑各变量对预测贡献的大小进行加权处理，合理设置权数。吸收了国际先进的成矿理论，依托新疆的成矿规律，采用GeoMedia Professional6.0GIS系统，构建了大型、超大型矿床的可视化定位成矿预测系统。通过多种数据处理技术初步建立了大型矿集区信息提取模式和多源信息模型，进过对阿尔泰(南缘)矿产资源进行多层次全方位的综合分析，研究了大型矿集区的空间分布规律，建立了有效的找矿模型，指出了找矿方向。并服务于大型金属矿产资源综合勘查，指导和推动新疆地区今后的找矿工作。利用成矿预测系统，建立了四种典型矿床的预测模型，对其中的两个模型运用在伊犁吐拉苏地区和阿尔泰南缘两个预测区，圈定了成矿有利地段，通过现场踏勘验证预测成果，证明了本成矿预测系统的先进性和准确性，取得了较好的地质效果。研究开发和应用一系列最先进的GeoMedia Professional6.0、MSSqlServer2000、Oasis montaj等软件，提高和完善了预测系统的功能。更多还原

【Abstract】 Against the current situation of’little big deposits and many small deposits’in the western of country, funded by’Dominant mineral resources exploration and evaluation of Xinjiang province-the selection of exploration target and positioning of large copper forecast in Crown Basin "(2001BA609A-07-03) project funded by the Earth exploration the paper develops the application research of geological information for huge deposits in the Altai Mountains (south edge),which has important theoretical significance and big practical value for the breakthrough of seeking mineral deposits combining.Through developing and using the system of advanced GeoMedia Professional6.0GIS and advanced software integration technology, supported by MSSQLSERVER2000 large database management software, integrating and managing the Altai region’s information on geology, geophysics, geochemistry, remote sensing data and scientific research, graphic, image, establishing a multi-source database, which make the database structure clear, reasonable and suitable. Using VB.Net advanced platform developed ten data management module makes data transmission, image processing and splicing is more rapid and accurate. In addition to directly calling the Oasis montaj geophysical processing software, the system can use some special features MAPGIS on the geophysical and geochemical data processing and integration directly and effectively.In the paper the fuzzy mathematical method with wide scope of weights is taken as a mathematical model, which plays functions of judgment, evaluation, reasoning, decision-making and control and overcomes the shortcomings of low level exploration in individual districts at the same time. On the base of examining the relevance of the information between direct and indirect prospecting and converting information law between them, the paper designs the geological information extraction of 25 variables. And contribution of each variable in predicting is weighted and weights number is set reasonably. The paper absorbs the international advanced metallogenic theory on the base of law of mineralization in Xinjiang, and builts large, super-large ore deposits of the visual localization prediction system using GeoMedia Professional6.0GIS systemUsing predicting system metallogenic information area has been selected, which are Iinxi-Yiermande, Jinshan, Lingchang gold predicting area in Tulashu gold ore belt of Yili; Wulasigou-Tian muerte and tuosibasitao copper polymetallic predicting area and Aersayi gold deposit in the south of Aletai, and Arkesayi gold deposit, Manku iron ore area.By the metallogenetic predicting system, the paper builts 4 predicting models on typical deposits and applies them for 2 regions of Lasu and Altai and delineates anomalous area. After the verification of field exploration the advance and accuracy of metallogentic predicting system is proved which as obtains good geological results. Developing a series of advanced software of GeoMedia Professiona16.0、MSSqlServer2000、Oasis montaj the paper makes the function of prediction system perfect.更多还原