| 莱芜三岔河铁金矿床的发现及其特征 |
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| 引用本文： | 马明,高继雷.莱芜三岔河铁金矿床的发现及其特征[J].山东国土资源,2018,34(10). |
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| 作者姓名： | 马明 高继雷 |
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| 作者单位： | 山东省第一地质矿产勘查院 |
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| 摘 要： | 莱芜三岔河矿床为矽卡岩型铁金共生矿床,伴生银和硫。三岔河及周边地区前期勘查多以铁矿为主,矿体规模较小,未取得显著成果。近期在铁矿勘查中,发现部分样品金达到工业品位,经反复研究后调整工作思路,将勘查目标确定为铁金综合评价,实现了找矿突破。矿床为中型规模,矿体赋存于燕山晚期黑云母闪长岩内的奥陶纪地层灰岩捕掳体附近,矿体形态产状较稳定,呈似层状、透镜状,严格受接触带控制。莱芜三岔河矽卡岩型铁金矿床是鲁西地区找矿新发现,对鲁西地区寻找共生金矿具有指导意义。
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| 关 键 词： | 铁金矿 矽卡岩型 控矿因素 莱芜三岔河 |
Discovery and Characteristics of Sanchahe Iron Ore Gold Deposit in Laiwu City |
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| MA Ming and GAO Jilei.Discovery and Characteristics of Sanchahe Iron Ore Gold Deposit in Laiwu City[J].Land and Resources in SHANDONG Province,2018,34(10). |
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| Authors: | MA Ming and GAO Jilei |
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| Abstract: | Sanchahe deposit in Laiwu city is a skarn type irongold paragenetic deposit associated with silver and sulfur. The early exploration in Sanchahe and its surrounding areas mainly focus on iron deposit, and the scale of ore bodies is small with no significant results. In recent iron ore exploration, some samples of gold have been found to reach industrial grade. After repeated study, the idea of work has been adjusted and the exploration target has been determined as comprehensive evaluation of iron and gold, thus achieving a breakthrough in prospecting. The scale of the deposit is mediumsized. The ore body occurs in the vicinity of the Ordovician limestone trap in the biotite diorite in late Yanshan period. The ore body is stable in shape and occurrence, and is stratiform and lenticular, strictly controlled by the contact zone. Sanchahe skarn type irongold deposit in Laiwu city is a new discovery in the western Shandong province, which is of guiding significance for the exploration of paragenetic gold deposits in the western Shandong area. |
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| Keywords: | Iron gold deposit skarn type ore controlling factors Sanchahe in Laiwu city |
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