中国矽卡岩矿床找矿新进展和时空分布规律

发布时间：2018-02-08 17:59

本文关键词： 地质学矽卡岩矿床找矿新进展时空分布中国　出处：《矿床地质》2017年03期 　论文类型：期刊论文

【摘要】：近年来,中国矽卡岩矿床找矿取得了很大的新进展:西藏冈底斯成矿带和班公湖-怒江成矿带发现和探明了十余个大中型矽卡岩铜、金多金属矿床;在青海西部祁漫塔格成矿带发现和探明了不少铁多金属矽卡岩矿床;在东部地区发现和探明了一批大型隐伏的矽卡岩矿床,如河北白涧铁矿床、江西朱溪钨多金属矿床、湖南锡田锡钨矿床、福建上房钨矿床等。在新疆西天山发现和探明了一批大(中)型与火山-侵入活动有关的矽卡岩铁矿床。另外,在新疆发现白干湖、沙沟等大型钨矿床,在甘肃也发现和探明了大型钨矿床。学者们对上述矿床进行了较详细的研究。中国主要矽卡岩矿床最新同位素测年资料表明,矽卡岩矿床的生成时代从元古宙、古生代、中生代到新生代都有,但最重要的成岩成矿期是中生代的燕山期。在空间分布上,赵一鸣等(1990)曾划分出14个重要的矽卡岩成矿带,通过广大地质工作者的努力,在西藏、新疆和青海等省(区)找矿工作的重大进展,又新增4个矽卡岩成矿带,即西藏冈底斯成矿带、班公湖-怒江成矿带、青海祁漫塔格成矿带和新疆西天山成矿带。
[Abstract]:In recent years, great new progress has been made in the prospecting of skarn deposits in China: more than ten large and medium-sized skarn copper and gold polymetallic deposits have been discovered and proved in the Gangdis metallogenic belt and Bangonghu-Nujiang metallogenic belt in Tibet; Quite a number of iron-polymetallic skarn deposits have been discovered and proved in the Qimantag metallogenic belt in western Qinghai, and a number of large hidden skarn deposits, such as the Baijian iron deposit in Hebei Province and the Zhuxi tungsten polymetallic deposit in Jiangxi Province, have been discovered and proved in the eastern part of the province. A number of large (middle) skarn iron deposits related to volcano-intrusive activities have been discovered and discovered in the West Tianshan Mountains of Xinjiang. In addition, Baigan Lake, Shagou and other large-scale tungsten ore deposits have been discovered in Xinjiang. Large-scale tungsten deposits have also been discovered and proved in Gansu Province. Scholars have studied the deposits in detail. The latest isotopic dating data of the major skarn deposits in China indicate that the skarn deposits were formed in Proterozoic and Paleozoic. Mesozoic to Cenozoic, but the most important diagenetic and metallogenic period was the Yanshanian period of Mesozoic. In spatial distribution, Zhao Yiming et al. (1990) has divided 14 important skarn metallogenic belts, through the efforts of the vast number of geologists, in Tibet, Major progress in prospecting in Xinjiang and Qinghai provinces and regions has resulted in the addition of four skarn metallogenic belts, namely, the Gangdis metallogenic belt in Tibet, the Bangonghu-Nujiang metallogenic belt, the Qimantage metallogenic belt in Qinghai and the metallogenic belt in the western Tianshan Mountains of Xinjiang.
【作者单位】：中国地质科学院矿产资源研究所国土资源部成矿作用与资源评价重点实验室;
【基金】：国家自然科学基金项目(批准号:41172076) 中国地质调查局地质调查项目(编号:1212011085528;12120113093600)联合资助
【分类号】：P618.2

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