| 李光明.西藏冈底斯铜多金属成矿带
基于MRAS 资源评价系统的成矿预测[J].地质与勘探,2009,45(6):645-654 |
| 西藏冈底斯铜多金属成矿带
基于MRAS 资源评价系统的成矿预测 |
| Based on Mineral Resource Assessment System(MRAS) for theMetallogenic Prognosis in Gangdese Metallogenic Belt, Tibet |
| 投稿时间：2009-08-23 修订日期：2009-10-25 |
| DOI： |
| 中文关键词: 西藏冈底斯成矿带 矿床类型MRAS 系统 成矿预测 |
| 英文关键词: Tibetan Gangdese metallogenic Belt,,type of ore deposit, mineral resource assessment system (MRAS), metallogenic prognosis |
| 基金项目:国家科技支撑计划课题(2006BAB01A01,2006BAB01A04,2006BAB01A05)联合资助。 |
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| 中文摘要: |
| [摘要]西藏冈底斯成矿带是我国西部的重点成矿区带之一,特提斯演化与碰撞造山多阶段的构
造演化和中生代以来广泛而强烈的花岗质岩浆侵入活动,在冈底斯成矿带形成了以岩浆作用为主的铜
铁多金属矿床系列与矿床组合,主要的矿床类型有斑岩型铜钼矿、矽卡岩型铜铁多金属矿和热液型铅锌
银矿。作者在区域地质条件、成矿规律与典型矿床研究的基础上,总结了斑岩型铜钼矿、矽卡岩型铜铁
金属矿以及热液型铅锌银矿床的区域预测模型变量与与预测变量通过预测成果检验调整后各的权重,
并利用MRAS 资源评价系统对冈底斯成矿带进行了成矿预测,新圈出了一些重要的找矿远景区,如夏马
日-弄如日铜金矿找矿远景区、则学-纳如松多铅锌银找矿远景区等,指出冈底斯成矿带的斑岩型和矽
卡岩型矿床还具有进一步的找矿潜力。 |
| 英文摘要: |
| Abstract:As one of the most important and hopeful mineral resource potential metallogenic belt in western China, the Tibetan Gangdese metallogenic
belt underwent phases of tectogenesis and large-scale granite magma intrusive rocks, and developed a large number of magmatism related Cu-Mo and Pb
-Zn-polymetallic mineral ore deposits. The main deposit-type in Gangdese metallogenic belt were porphyry-type Cu-Mo deposit, Skarn-type Cu-Pb-
Zn deposit and hydrotherm-type silver-bearing polymetallic ore deposit. Base on the study of metallogenic conditions, metallogenic regularity, and model
deposit, the authors summarized the regional predicted model and forecasting forecasting indexes system of porphyry-type Cu-Mo deposit, Skarn-type Cu
-Pb-Zn deposit and hydrotherm-type silver-bearing polymetallic ore deposit in Gangdese metallogenic belt. Using the assessment method of mineral re鄄
source assessment system(MRAS) , the metallogenic prognosis had been done for Porphyry Cu-Mo deposits, skarn-type Cu-Pb-Zn deposits and hydro鄄
therm-type silver-bearing polymetallic deposits in Gangdese metallogenic belt. the results of metallogenic prognosis show that the magmatism related of
porphyry Cu-Mo deposits, skarn-type Cu-Pb-Zn deposits and hydrotherm-type silver-bearing polymetallic deposits in Gangdese metallogenic had farther
mineral resource potential. |
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