| 马曙光.GIS 系统在海南石碌铁矿成矿预测中的应用[J].地质与勘探,2009,45(6):716-721 |
| GIS 系统在海南石碌铁矿成矿预测中的应用 |
| Application of GIS in Metallogenic Prognosis in ShiluIron Ore Deposit, Hainan |
| 投稿时间：2009-05-12 修订日期：2009-11-03 |
| DOI： |
| 中文关键词: 地理信息系统 成矿预测 成矿预测变量 海南 石碌铁矿 |
| 英文关键词: geographic information systems,metallogenic prognosis, variate of metallogenic prognosis, Hainan, Shilu iron ore deposit. |
| 基金项目:国家“十一五冶科技支撑计重点项目(2006BAB01B12)资助。 |
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| 中文摘要: |
| [摘要]GIS(地理信息系统)成矿预测技术是依据多元地学变量空间信息进行成矿预测及综合研
究的新技术。GIS 成矿预测工作,多元地学数据库建立是基础,软件设计是关键。根据石碌铁矿野外考
察结果及对石碌铁矿成矿规律的认识,确定将双透岩、含矿层位、古地貌、构造、重力异常5 个地学变量
作为成矿预测变量。将石碌含矿层按50伊50伊50m 规格划分为15224 个待预测块,用成矿预测变量对待
预测块进行综合打分,统计已知含矿预测块同成矿预测变量综合打分的关系,确定每个待预测块的成矿
概率。通过预测,在石碌铁矿外围,一级成矿预测块2618 块,有望找到一亿多吨富铁矿。GIS 成矿预测
技术为危机矿山外围及深部找矿提供了新的思路及方法。 |
| 英文摘要: |
| Abstract:GIS (Geographic information systems) metallogenic prognosis technique based on the multi-source geological spatial variates which pro鄄
vide information for metallogenic prognosis and synthesizing study. The foundation of database is important, and designing software is crucial. Based on
the field survey's result and metallogenic regularity studying of Shilu iron deposit, variates of metallogenic prognosis were conformed, such as sebesite-di鄄
opsidite, producing formation, palaeogeomorphy, structure and gravity anomaly. The area was divided into 15224 predicting blocks by the scale of 50伊50
伊50 meters, then these blocks are marked systematically. The relationships between every metallogenic prognosis and summarized the total values to each
predicting blocks, worked out the relationship between the ore blocks in predicting blocks and total values of variates of metallogenic prognosis, conformed
metallogenic probability. Through the metallogenic prognosis work, 2618 blocks of 1st class predicting are determined, more than 100 million tons bucked
iron ore are expected. GIS metallogenic prognosis techniques provide a new way and method for crisis mine peripheral region and exploration in depth. |
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