| 东疆中天山北缘大水锰矿带锰矿成因类型及找矿方向探讨 |
| 点此下载全文 |
| 引用本文：.2007.Genetic types and exploration direction of manganese deposits in Dashui Mn ore belt on northern margin of Central Tianshan, eastern Xinjiang[J].Mineral Deposits,26(1):89~97 |
| Hits: 2967 |
| Download times: 2965 |
|
| 基金项目:新疆维吾尔族自治区矿产资源补偿费项目与中国科学院知识创新工程重要方向项目(KZCX2-YW-107） |
|
| 中文摘要:文章根据矿体产出地质部位、形态特征及与围岩的关系，把大水地区锰矿划分为4种成因类型：①近代风化堆积型锰矿，②受构造裂隙控制的风化淋滤型锰矿，③产于细碎屑岩中的沉积型锰矿，④产于地层与岩体接触带内的热接触_变质型锰矿。在对该区矿床成因及成矿条件进行对比分析的基础上，明确该区有望成为一处大型锰资源勘查-开发基地，深部找矿潜力巨大。提出今后找矿方向应以沉积型锰矿为主攻目标，以花坪锰矿为突破口，运用地质、物探相结合的方法在含锰岩系深部进行找矿，通过点上突破来带动整个锰矿带的找矿工作。 |
| 中文关键词:地质学 锰矿 成因类型 找矿方向 中天山北缘 东疆 |
| |
| Genetic types and exploration direction of manganese deposits in Dashui Mn ore belt on northern margin of Central Tianshan, eastern Xinjiang |
|
|
| Abstract:The high_quality manganese ore constitutes a strategic resource and scarce commodity, and is also one of the main prospecting objects in China in recent years. Since the beginning of the new round of the national mineral resources survey, great progress has been made in search for iron, copper, nickel, gold, lead, zinc and rare_earth metals, except for the manganese survey in Xinjiang. In order to develop new mineral_prospecting thoughts and exploration direction for manganese deposit, it is necessary to strengthen the research on metallogenic regularities of manganese deposits in important ore belts of Xinjiang. The manganese_bearing strata in Xinjiang are mostly concentrated in the Tianshan orogenic belt, and belong to a part of the Qilian_Tianshan first-order metallogenic domain, in which the Dashui_Hongliuhe manganese ore belt of Hami area is the most important manganese metallogenic belt in East Tianshan. Thanks to the exploration work performed in 1960's and 1970's, a series of manganese ore deposits and ore spots were found along this belt, such as the Dashui, Huaping, Baichuan and Kuquan deposits. This manganese metallogentic belt, with huge prospecting potential at depth, is expected to become a large base area of the manganese resource. According to the geological setting of the manganese deposit, the shape of the ore body, and the relationship with the wall rock, the manganese ore deposits in the Dashui area can be divided into four genetic types:① the modern weathering accumulation type manganese deposits; ② the weathering_leaching type manganese deposits controlled by structures and fissures; ③ sedimentary type manganese deposits in clastic rocks; ④ contact_metamorphic type manganese deposits in the contact zone between the strata and the granitic intrusion. Based on an analysis of the genetic types and ore_forming conditions of the mangaenese deposits in Dashui area, the authors hold that future exploration work should be concentrated on the Huaping manganese ore district for sedimentary manganese deposits, and the integrated geological and geophysical method should be used in search for deep sedimentary type manganese ore bodies in the Huaping ore district, followed by a prompt exploration of the whole Dashui_Hongliuhe manganese ore belt. |
| keywords:geology, Mn deposit, genetic type, exploration direction,northern margin of central Tianshan eastern Xinjiang |
| View Full Text View/Add Comment Download reader |
|
|
|
