| 周云满.滇中小水井金矿床控矿构造与矿化富集规律[J].地质与勘探,2009,45(5):588-594 |
| 滇中小水井金矿床控矿构造与矿化富集规律 |
| The Ore-controlling Structures and the Regularitis of the MineralizationEnrichment of the Xiaoshuijing Gold Deposit in Middle Yunnan |
| 投稿时间：2009-03-04 修订日期：2009-07-01 |
| DOI： |
| 中文关键词: 矿产预测评价 三维预测 大比例尺 |
| 英文关键词: geology, ore-controlling structure, regularitis of the mineralization enrichment, Xiaoshuijing gold deposit, Middle Yunnan |
| 基金项目:原云南地矿资源股份有限公司科研项目“云南省楚雄市龙岗金矿带成矿规律及成矿预测冶资助。 |
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| 摘要点击次数: 3501 |
| 全文下载次数: 1774 |
| 中文摘要: |
| [摘要]将三维可视化技术应用于大比例尺矿产资源评价是地学领域一项热点研究课题。通过
建立各种模型,使地质工作者能够全视角地认知工作区的地形、地层、构造和岩体等地质体间相互关系,
能够将各种地质体、地球化学异常、地球物理异常、蚀变带、反演出的地质体以及它们之间的相互关系形
象直观地反映出来。通过对空间体单元进行赋值,利用地质统计技术对这些空间数据进行计算,可以较
科学地实现定位预测及定量预测的目的。该三维预测方法的应用,为大比例尺矿产预测,尤其是矿区深
部及外围预测,提供了一种新的工作思路和手段, 具有较高的推广与应用价值。 |
| 英文摘要: |
| Abstract:The structurally controlled ore deposit is the main characteristic of the Xiaoshuijing gold deposit. This paper has studied the spatial confor鄄
mation, tectonite zoning, activity times, dynamic characteristics and structural type of the ore-controlling fault in the Xiaoshuijing gold deposit. It was
pointed out that the Xiaoshuijing gold deposit was controlled by regional third fault (F3 ) and its suborder fault zones, shear zones, interlayer fractures
control distribution of ore bodies. The ore-controlling structures belong to brittle-ductile shear zones, and the ore-controlling fault zone had undergone
three times deformation by stressing effect: ductile shear deformation of compresso-shearing origin in early, brittle-ductile shear deformation of tensoshearing
origin in middle-later, brittle shear deformation in later—formed cataclactic rocks. Gold mineralization was main relation with brittle-ductile
shear deformation in middle-later, and it occurred during brittle-ductile shear deformation or later. Ulteriorly, author summarized the regularities of gold
mineralization enrichment: the places where orientation of a fault zone changes or faults crosscut each other or a fault zone gets wide are favorable locations
where the thick and lenticular gold ore bodies occurred. Ore bodies often get thin or thin out, or become veins in the places where an ore-controlling fault
zone obviously becomes narrow. Gold ore bodies at Xiaoshuijing gold deposit occurred at the levels from 1740m to 2045 m. |
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