| 滇中小水井金矿床控矿构造与矿化富集规律 |
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| 引用本文： | 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. |
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| 作者姓名： | 周云满 |
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| 作者单位： | 云南黄金矿业集团股份有限公司;中国地质科学院矿产资源研究所; |
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| 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”资助 |
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| 摘 要： | 构造控矿是小水井金矿床的主要特点,本文通过对矿床控矿构造空间形态、构造岩分带、活动期次、力学性质、矿床构造类型的研究,认为小水井金矿床受控于区域三级断裂(F3),其内更次级的断层、剪切裂隙破碎带、层间破碎带控制了矿体的空间产出位置;矿床控矿构造类型为脆-韧性剪切断裂构造,构造破碎带起码经历了三期应力作用的改造,早期为压扭性韧性剪切变形,中、晚期为张扭性脆-韧性剪切变形,后期为脆性剪切作用—形成碎裂状岩石;矿床金矿化作用主要与中、晚期的脆-韧性剪切变形作用有关,发生在脆-韧性剪切变形阶段或稍晚。进而总结了金矿化富集规律,指出在断裂产状变化地段、不同方向断层交切附近、破碎带的膨大部位,是厚大透镜状矿体富集的有利空间;破碎带变窄地段,矿体变薄、尖灭,形成脉状矿体。
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| 关 键 词： | 地质学 控矿构造 矿化富集规律 小水井金矿 滇中 |
| 收稿时间： | 3/4/2009 12:00:00 AM |
| 修稿时间： | 7/1/2009 12:00:00 AM |
The Ore-controlling Structures and the Regularitis of the Mineralization
Enrichment of the Xiaoshuijing Gold Deposit in Middle Yunnan |
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| ZHOU Yun-man.The Ore-controlling Structures and the Regularitis of the Mineralization
Enrichment of the Xiaoshuijing Gold Deposit in Middle Yunnan[J].Geology and Prospecting,2009,45(5):588-594. |
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| Authors: | ZHOU Yun-man |
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| Institution: | ZHOU Yun-man1,MAO Jing-wen2,ZHANG Chang-qing2(1.Yunnan Gold & Mineral Group Co.Ltd.,Kunming 650215,2.Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037) |
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| Abstract: | The structurally controlled ore deposit is the main characteristic of the Xiaoshuijing gold deposit.This paper has studied the spatial conformation,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 be... |
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| Keywords: | geology ore-controlling structure regularitis of the mineralization enrichment Xiaoshuijing gold deposit Middle Yunnan |
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