In this paper, the Dongchuan type copper deposits are taken as an example to illustrate the application of GIS to the geo anomaly based delineation of mineral resources. The following eight steps are listed in this pa...In this paper, the Dongchuan type copper deposits are taken as an example to illustrate the application of GIS to the geo anomaly based delineation of mineral resources. The following eight steps are listed in this paper to delineate the permissive and preferable ore finding areas: (1) the analysis of favorable prospecting index using linear and planar geo anomalies; (2) the analysis of favorable prospecting index using combined anomalies; (3) the construction of a GIS based spatial model for mineral prognosis; (4) the delineation of the permissive ore finding area; (5) the determination of the synthetic anomalies and numerical range for the prediction of the favorable prospecting areas, and the determination of the weights of these two variables; (6) the superimposition of all the selected anomalies and the construction of the superimposition map; (7) the determination of unifying criterion of favorable prospective areas at various levels, and (8) the delineation of favorable prospective areas. Finally, this paper offers a detailed discussion of the results in the forecasting of Dongchuan type copper deposits.展开更多
Northeast China is one of the regions in China that possesses a great abundance of mineral resources. Coal. petroleum, natural gas, gold, iron, magnesite, graphite, talc, molding sand, glass sand and some others accou...Northeast China is one of the regions in China that possesses a great abundance of mineral resources. Coal. petroleum, natural gas, gold, iron, magnesite, graphite, talc, molding sand, glass sand and some others account for large portion in reserves and yields of that in the whole country. The region faced also shortages of copper, molybdenum, oil shale, zirconium, tantalum, rare earth, and beryllium, although they have large reserves, but limited by economical and technical factors. Geological mapping and mineral exploration activities have been intensive. Only the north part of Daxinanling Mountains in the region leaves unexplored. GIS applications in mineral resource assessment in the region start not long. Databases for GIS applications are on the way of construction. Well - trained technical staff and expertise do not meet the demand. This article reviews the situation of mineral resources and GIS applications for mineral resource assessment in the region. Suggestions on multi - lateral cooperation and GIS training are also made.展开更多
文章利用地理信息系统(geographic information system,GIS)时空分析技术,对长江中下游地区开展同位素分析工作,进行了长江中下游地段同位素填图,并绘制了地球化学元素图,研究了区域内的地质特征、地球化学元素和同位素变化。研究结果表...文章利用地理信息系统(geographic information system,GIS)时空分析技术,对长江中下游地区开展同位素分析工作,进行了长江中下游地段同位素填图,并绘制了地球化学元素图,研究了区域内的地质特征、地球化学元素和同位素变化。研究结果表明,在长江断裂带沿岸锆石εHf(t)值较高,地质特征自西向东分为3段,断裂带和同位素对矿床产生的影响明显。通过对长江中下游地质特征、同位素数据及成矿作用类型的类比,结合GIS技术分析结果和该地区目前已有矿床资料,提出长江中下游断裂带中部深断裂北侧是长江中下游最有潜力的Cu-Au成矿地带。展开更多
GIST(Geographic Information System Toolkit)是一个与数字图像处理系统结合起来的地理信息系统。作为中英合作进行的新疆试验区遥感地质找矿以及地理信息系统的发展应用项目的一个组成部分,作者与英国SWK公司的同事们一起,对该系统的...GIST(Geographic Information System Toolkit)是一个与数字图像处理系统结合起来的地理信息系统。作为中英合作进行的新疆试验区遥感地质找矿以及地理信息系统的发展应用项目的一个组成部分,作者与英国SWK公司的同事们一起,对该系统的基本结构以及将该系统应用于遥感地质方面,做了一系列的软件发展工作。文中将详述这些工作,包括系统构成及若干特点,具体的应用以及进一步发展GIST在地质方面应用的一些考虑。展开更多
文摘In this paper, the Dongchuan type copper deposits are taken as an example to illustrate the application of GIS to the geo anomaly based delineation of mineral resources. The following eight steps are listed in this paper to delineate the permissive and preferable ore finding areas: (1) the analysis of favorable prospecting index using linear and planar geo anomalies; (2) the analysis of favorable prospecting index using combined anomalies; (3) the construction of a GIS based spatial model for mineral prognosis; (4) the delineation of the permissive ore finding area; (5) the determination of the synthetic anomalies and numerical range for the prediction of the favorable prospecting areas, and the determination of the weights of these two variables; (6) the superimposition of all the selected anomalies and the construction of the superimposition map; (7) the determination of unifying criterion of favorable prospective areas at various levels, and (8) the delineation of favorable prospective areas. Finally, this paper offers a detailed discussion of the results in the forecasting of Dongchuan type copper deposits.
文摘Northeast China is one of the regions in China that possesses a great abundance of mineral resources. Coal. petroleum, natural gas, gold, iron, magnesite, graphite, talc, molding sand, glass sand and some others account for large portion in reserves and yields of that in the whole country. The region faced also shortages of copper, molybdenum, oil shale, zirconium, tantalum, rare earth, and beryllium, although they have large reserves, but limited by economical and technical factors. Geological mapping and mineral exploration activities have been intensive. Only the north part of Daxinanling Mountains in the region leaves unexplored. GIS applications in mineral resource assessment in the region start not long. Databases for GIS applications are on the way of construction. Well - trained technical staff and expertise do not meet the demand. This article reviews the situation of mineral resources and GIS applications for mineral resource assessment in the region. Suggestions on multi - lateral cooperation and GIS training are also made.
文摘文章利用地理信息系统(geographic information system,GIS)时空分析技术,对长江中下游地区开展同位素分析工作,进行了长江中下游地段同位素填图,并绘制了地球化学元素图,研究了区域内的地质特征、地球化学元素和同位素变化。研究结果表明,在长江断裂带沿岸锆石εHf(t)值较高,地质特征自西向东分为3段,断裂带和同位素对矿床产生的影响明显。通过对长江中下游地质特征、同位素数据及成矿作用类型的类比,结合GIS技术分析结果和该地区目前已有矿床资料,提出长江中下游断裂带中部深断裂北侧是长江中下游最有潜力的Cu-Au成矿地带。
文摘GIST(Geographic Information System Toolkit)是一个与数字图像处理系统结合起来的地理信息系统。作为中英合作进行的新疆试验区遥感地质找矿以及地理信息系统的发展应用项目的一个组成部分,作者与英国SWK公司的同事们一起,对该系统的基本结构以及将该系统应用于遥感地质方面,做了一系列的软件发展工作。文中将详述这些工作,包括系统构成及若干特点,具体的应用以及进一步发展GIST在地质方面应用的一些考虑。
