Abstract:Spacebome Deposit Signature (SDS) modeling is a new concept, which is a result of the application of remote sensing techniques in ore exploration. In this study, features of various ore-controlling factors and their recognition criteria were studied based on the interpretation of spaceborne data (Landsat MSS, TM and ETM+ imageries), geology, and gold mineralization patterns. Then, the following procedure was used to develop the model:1) choosing appropriate image processing techniques; 2) studying the major ore-controlling factors (structures, formations, alterations); and 3)determining the recognition criterion, establishing deposit image model and optimizing target areas. The optimization of target areas using the model was successfully achieved. Satellite image processing revealed strong alteration signatures for potentially economic gold deposits at three new sites (i. e. North, Middle, and South zones). It is concluded that such strong signatures clearly merit further investigation using more sophisticated airborne data sources such as radar. Three predicted areas proved to be gold-mineralized, for they are similar to those discovered by other geologists with conventional (geochemlcal and geophysical) exploration methods. Considering the case of the Paishanlou area, this paper illustrates that satellite data can play an important role in gold reconnaissance.
基金资助:This study was supported by the China Scholarship Council (Grant No.160),National Nature Science Foundation of China (Grant No.400722006) and the Key Task Project of Science and Technology of Liaoning Province (Grant No.2001230001).
作者简介: Malogo J M Kongola (1967-),male,Tanzanian,BSc.in Agricultural Engineering,Sokoine University of Agriculture (1995);MSc.in Agr/cultural Engineering,Sokoine University of Agriculture (2000);PhD in Ore Exploration Technology and Engineering,Northeastern University,China (2005).Now working as the Superintendent in the Gold Exploration Department,Barrick Gold Corporation.Contact address:Kahama Mining Corporation Ltd.,Bulyanhulu Mineslte,P.O.Box 891,Kama,Shinyanga,Tanzania.E-mail:MJKongola@barrick,com
引用本文:
Malogo J. M. Kongola, 王恩德. 利用卫星数据建立排山楼热液石英脉型金矿模型[J]. 地质与资源, 2005, 14(4): 297-304,313.
Malogo J. M. Kongola, WANG En-de. MODELING HYDROTHERMAL VEIN-TYPE GOLD DEPOSITS WITH SATELLITE DATA: PAISHANLOU GOLD MINE, LIAONING, CHINA. GEOLOGY AND RESOURCES, 2005, 14(4): 297-304,313.