| 秘鲁Don Javier斑岩型铜钼矿床矿化蚀变特征及矿床三维勘查模型 |
| Received:December 31, 2016 Revised:March 03, 2017 点此下载全文 |
| 引用本文：CHEN Nian,MAO JingWen,FAN ChengLong,CHEN YuMing.2017.Alteration-mineralization characteristics and three-dimensional exploration model of Don Javier porphyry copper-molybdenum deposit, Peru[J].Mineral Deposits,36(3):705~718 |
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| Author Name | Affiliation | | CHEN Nian | School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China | | MAO JingWen | School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China | | FAN ChengLong | School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China | | CHEN YuMing | Development and Research Center of China Geological Survey, Beijing 100037, China |
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| 基金项目:本文得到中国地质调查局地质调查项目"海上丝绸之路重点地区有色金属资源潜力评价"（编号：121201004000150010）资助 |
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| 中文摘要:Don Javier铜矿床位于秘鲁南部著名的古近纪铜钼矿床成矿带的北端，是该成矿带新发现的一个斑岩型铜钼矿床。初步探明其铜金属量为129.18万吨，平均品位0.43%；伴生钼金属量为5.23万吨，平均品位0.017%；伴生银金属量为800.56 t，平均品位2.64 g/t。文章重点分析该矿床成矿地质特征及成矿规律，明确矿床周边的找矿方向，以期增加资源量满足后续评价开发的需求。通过研究Don Javier矿床的成矿地质条件、矿化蚀变特征及其三维空间分布规律，认为其主要矿体发育于绢英岩化英安斑岩内。另外，通过建立矿床地质、蚀变三维模型，结合前人的地表物探、化探成果，认为矿体北东侧及南东方向具有很好的找矿前景。 |
| 中文关键词:地质学 斑岩铜矿 矿化蚀变 三维模型 Don Javier矿床 秘鲁 |
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| Alteration-mineralization characteristics and three-dimensional exploration model of Don Javier porphyry copper-molybdenum deposit, Peru |
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| Abstract:The Don Javier copper deposit is located in the northern part of the Paleogene porphyry copper-molybdenum metallogenic belt in the south of Peru. It is one of the newly discovered porphyry copper-molybdenum deposits in this metallogenic belt. The copper resource is 1.29 million tons with an average grade of 0.43%, the associated molybdenum is 52 300 tons with an average grade of 0.017% and 800.56 tons of silver with an average grade of 2.64 g/t. In order to increase the metal resources and satisfy the demand of the follow-up assessment and development of the mine, this paper helps the readers to determine the location of new prospective areas around the deposit based on studying the geological characteristics and metallogenic regularity of the deposit. By studying the geological condition of mineralization, the mineralization-alteration features and the three-dimensional distribution pattern of the deposit, the authors hold that the main orebody is hosted in the phyllic altered dacite porphyry. By establishing the three-dimensional geological model of the deposit and combining the geophysical and geochemical prospecting results, the authors have reached the conclusion that there exist prospecting potential in the northeastern and the southeastern part of the orebody. |
| keywords:geology porphyry copper deposit mineralization and alteration three-dimensional model Don Javier deposit Peru |
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