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A Predictive GIS Model for Potential Mapping of Copper, Lead, and Zinc in Langping Area, China

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Geo-Spatial Information Science 2009年第4期12卷 243-250页

作者： Tarik. B. Benomar hu guangdao BIAN Fuling Research Center of Spatial Information & Digital Engineering Wuhan University 129 Luoyu RoadWuhan 430079 China Faculty of Earth Resources China University of Geosciences 388 Lumo Road Wuhan 430074 China

Mineral resource potential mapping is a complex analytical process,which requires the consideration and the inte-gration of a number of spatial evidences like geological,geomorphological,and wall rock *** aim of this paper is to establish mineral exploration model for copper,lead,and zinc in Lanping basin area using the capability of analytical tools of Geographic Information System(GIS) and remote sensing data to generate maps showing favorable mineralized *** geo-exploration dataset used for the research includes copper,lead,and zinc deposits,geological maps,topographic maps,structural maps,and ETM+ *** features indicative of potential copper,lead,and zinc were extracted from the datasets input in the predictive *** method of weights of evidence modeling is a probability-based technique for generating mineral potential maps using the spatial distribution of indicative features with respect to the known mineral *** method of weights of evidence probabilistic modeling provides a quantitative method for delineating areas with potential of copper,lead,and zinc mineral deposits in the Lanping Basin ***(W+,W-) and contrast(C=(W+) -(W-) ) calculations guide the data-driven *** four most important spatial features for exploration guide for copper,lead,and zinc mineralization hosted in the Lanping Basin area are alteration zones,faults,host rocks,and *** host rocks and deep faults have the strongest spatial association with the known copper,lead,and zinc *** hydrothermal alteration zones have the moderate spatial association with the copper,lead,and zinc *** predicted high-favorability zones do not show the strong affinity with *** distribution of 22(copper,lead,and zinc) occur-rences in the Lanping Basin was examined in terms of spatial association with various geological *** analysis of these relationships using GIS and weights of evidence modeling has pr

关键词： remote sensing geographic information system weights of evidence Lanping Basin(China)

Study of Sand Dunes and Their Effect on Desertification of Cultivated Lands in Shaanxi Province, China Using Remote Sensing Techniques

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Journal of China University of Geosciences 2002年第3期13卷 234-239页

作者： Mushtak Talib Jabbar hu guangdao Chen Jianguo Faculty of Earth Resources, China University of Geosciences, Wuhan 430074 Faculty of Earth Resources China University of Geosciences Wuhan 430074

About half of the arid and semi-arid lands in the world are deserts thatcomprise various types of aeolian sand dunes deposits. In Shaanxi Province, aeolian sand dunes coverconsiderable areas of the Yulin desert and northern Jinbian. Sand dunes are moving in the main winddirection and converting some agricultural area to wasteland. Remote sensing of sand dunes helps inthe understanding of aeolian process and desertification. Remote sensing data combined with fieldstudies are valuable in studying sand dunes, regional aeolian depositional history. In particular,active and inactive sand dunes of the north Shaanxi Province were studied using remote sensing andgeographic information system. In this study, we describe the Landsat thematic mapper (TM) images,covering north Shaanxi Province, which were used to study the distribution, shape, size, trends,density and movement of sand dunes and their effect on desertification of cultivated *** was made depending on soil erodibility factor (Ⅰ) and local climatic factor (C) duringthe period (June to September). The result indicates that soil erosion caused sand drift of 8.957 5,7. 03 ton for Yulin and Jinbian, respectively. The mean sand dunes movement rate were 4.37, 3.11 m,whereas, monthly sand dune advance rate were 1. 092 5, 0. 777 5m, for the two locations,respectively. The study reveals that cultivated lands extended obliquely to the direction of sanddune movement are extremely affected, while other segments that extend parallel to the direction ofthe movement are not affected. Accordingly the north Shaanxi Province was divided into areas ofdifferent classes of potential risk. Moreover, blown sands and sand movement from neighboringhighlands also affect the area of western desert.

关键词： sand dunes desertification remote sensing crust index china

Image Processing on Geological Data in Vector Format and Multi-Source Spatial Data Fusion

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Journal of China University of Geosciences 2003年第3期14卷 278-282页

作者： Liu Xing hu guangdao Qiu Yubao Faculty of Earth Resources, China University of Geosciences, Wuhan 430074 Faculty of Earth Resources China University of Geosciences Wuhan 430074

The geological data are constructed in vector format in geographical information system (GIS) while other data such as remote sensing images, geographical data and geochemical data are saved in raster ones. This paper converts the vector data into 8 bit images according to their importance to mineralization each by programming. We can communicate the geological meaning with the raster images by this method. The paper also fuses geographical data and geochemical data with the programmed strata data. The result shows that image fusion can express different intensities effectively and visualize the structure characters in 2 dimensions. Furthermore, it also can produce optimized information from multi-source data and express them more directly.

关键词： geological data GIS-based vector data conversion image processing multi-source data fusion

Application of GIS to Geological Information Extraction

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Journal of Earth Science 2000年第2期19卷 91-93页

作者： Cao Yu hu guangdao Ma Hongchao Faculty of Earth Resources, China University of Geosciences, Wuhan 430074

GIS, a powerful tool for processing spatial data, is advantageous in its spatial overlaying. In this paper, GIS is applied to the extraction of geological information. Information associated with mineral resources is chosen to delineate the geo anomalies, the basis of ore forming anomalies and of mineral deposit location. This application is illustrated with an example in Weixi area, Yunnan Province.

关键词： geological information GIS extraction application.

Metallic Mineral Resources Assessment and Analysis System Design

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Journal of Earth Science 2000年第3期19卷 114-117页

作者： hu guangdao Chen Jianguo Chen Shouyu Institute of Mathematical Geology and Remote Sensing, China University of Geosciences, Wuhan 430074, China

This paper presents the aim and the design structure of the metallic mineral resources assessment and analysis system. This system adopts an integrated technique of data warehouse composed of affairs processing layer and analysis application layer. The affairs processing layer includes multiform databases (such as geological database, geophysical database, geochemical database), while the analysis application layer includes data warehouse, online analysis processing and data mining. This paper also presents in detail the data warehouse of the present system and the appropriate spatial analysis methods and models. Finally, this paper presents the prospect of the system.

关键词： mineral resources assessment data warehouse spatial analysis.

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地质数据仓库设计中的几个问题

地球科学（中国地质大学学报） 1999年第5期24卷 522-524页

作者：胡光道中国地质大学数学地质遥感地质研究所武汉430074

提出并讨论了地质数据仓库系统设计中的几个问题：操作数据存储作为数据库和数据仓库间的数据接口，借用地理信息系统来存储和表示空间数据，级联式更新、主题间复杂关系的表达，以及专用的数据抽取模型的设计一个完整的地质数据仓库系... 详细信息

提出并讨论了地质数据仓库系统设计中的几个问题：操作数据存储作为数据库和数据仓库间的数据接口，借用地理信息系统来存储和表示空间数据，级联式更新、主题间复杂关系的表达，以及专用的数据抽取模型的设计一个完整的地质数据仓库系统可以分为3层：存储层、分析层、表达层在存储层的设计中，应考虑到公用库的设计.

关键词：数据库数据仓库地质数据仓库操作数据存储

MapGIS下空间数据库的建立及其典型问题研究

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武汉大学学报（信息科学版） 2005年第11期30卷 1029-1032页

作者：李定平胡光道程路中国地质大学(武汉)数学地质遥感地质研究所云南省地质矿产勘查开发局信息中心昆明市东风东路87号650051

以云南省地质图、水文地质图空间数据库的建立为例,通过对空间数据库建设中资料准备、图形矢量化、空间数据处理及文件转换四个过程的分析,总结了在进行回溯型空间数据库建库过程中需要注意的一些典型问题,并提出了解决的办法。论述了在... 详细信息

以云南省地质图、水文地质图空间数据库的建立为例,通过对空间数据库建设中资料准备、图形矢量化、空间数据处理及文件转换四个过程的分析,总结了在进行回溯型空间数据库建库过程中需要注意的一些典型问题,并提出了解决的办法。论述了在MapGIS下空间数据库建立过程中的一些技巧及经验。

关键词：空间数据库地质图水文地质图属性数据 GIS MapGIS Arc/Info

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维普期刊数据库

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卫星遥感像元邻近效应的模拟试验

红外与毫米波学报 2009年第1期28卷 46-49,65页

作者：温兴平胡光道杨晓峰昆明理工大学国土资源工程学院云南昆明650093 中国地质大学数学地质遥感地质研究所湖北武汉430074 昆明理工大学环境科学与工程学院云南昆明650093

定量遥感需要对遥感影像进行大气校正,在大气校正过程中,去除邻近效应的影响是一个比较重要的环节.对邻近效应的移除依赖于对影响邻近效应的主要因子及影响机制的认识,为此研究了影响邻近效应的主要因子及影响机制.文中利用MODTRAN模型... 详细信息

定量遥感需要对遥感影像进行大气校正,在大气校正过程中,去除邻近效应的影响是一个比较重要的环节.对邻近效应的移除依赖于对影响邻近效应的主要因子及影响机制的认识,为此研究了影响邻近效应的主要因子及影响机制.文中利用MODTRAN模型对不同对比度目标物在不同条件下的邻近效应进行了模拟,得出能见度对邻近效应的影响最大,其次是卫星天顶角,太阳高度角对邻近效应的影响最小;在能见度较高时,辐射率变化百分率曲线形状接近背景反射率曲线,但这种情况在能见度较低时并没有出现;在能见度较高时,随着波长增加,辐射率变化百分率逐渐减小,但在能见度较低时,这种关系没有出现.表明随着能见度减小,其对邻近效应的影响也呈现复杂化.模拟结果为消除邻近效应的影响提供了依据.

关键词：遥感大气校正邻近效应 MODTRAN 模拟

基于MapGIS的通用土地花纹符号库的建立

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计算机工程与应用 2005年第36期41卷 198-200,216页

作者：胥兵胡光道中国地质大学数学地质与遥感地质研究所武汉430074

目前的一些GIS软件系统的符号系统缺乏统一的标准,系统之间更无沟通可言,尤其在土地管理应用这一领域。在了解GIS图形符号处理和花纹符号建库功能之后,利用计算机辅助设计技术和MapGIS软件平台具体实现在本专业工作中可实际应用的通用... 详细信息

目前的一些GIS软件系统的符号系统缺乏统一的标准,系统之间更无沟通可言,尤其在土地管理应用这一领域。在了解GIS图形符号处理和花纹符号建库功能之后,利用计算机辅助设计技术和MapGIS软件平台具体实现在本专业工作中可实际应用的通用土地花纹符号库,并研究沼泽地特殊花纹的填充算法。

关键词：符号花纹符号库填充