阿尔金成矿带成矿单元划分及成矿系列探讨  

Discussion on Metallogenic Series and Metallogenic Unit Division in Altun Metallogenic Belt

作　　者：乔耿彪[1] 杨合群[1] 杜玮[2] 赵晓健[1] 

机构地区：[1]中国地质调查局西安地质调查中心,国土资源部岩浆作用成矿与找矿重点实验室,陕西西安710054 [2]长安大学地球科学与资源学院,陕西西安710054

出　　处：《西北地质》2014年第4期209-220,共12页Northwestern Geology

基　　金：国家科技支撑计划"西昆仑-帕米尔金属矿产快速勘查评价方法技术研究和找矿靶区优选评价"(2011BAB06B05-02);国家自然科学基金"西昆仑库地铬铁矿床铬尖晶石矿物学及其成矿机理研究"(41302051);中国地质调查局"新疆成矿带成矿过程研究与找矿靶区优选评价"(1212011220894)和"昆仑-阿尔金成矿带及整装勘查区矿产勘查部署与潜力调查(12120114008501)"联合资助

摘　　要：阿尔金成矿带地处新疆、青海和甘肃三省的衔接部位,是我国西部重要的铁、铅、锌、金、铜等矿产资源重点勘查区之一,也是全国矿产资源潜力评价项目划分的Ⅲ级成矿单元之一。笔者以地层、构造、岩浆岩带和相关的成矿作用为标志,将阿尔金成矿带进一步划分为3个Ⅳ级成矿单元(成矿亚带),并概述了各Ⅳ级成矿单元的地质矿产特征;在此基础上,按照杨合群等(2012)提出的与各类地质建造有关的成矿系列细化为同生成矿系列、准同生成矿系列、后生成矿系列和表生风化成矿系列,构建了阿尔金成矿带的11个成矿系列家族和16个成矿(或矿化)系列,这将对该区域今后的找矿和勘查工作具有一定的指导作用。Lying in neighboring area of Xinjiang-Qinghai-Gansu provinces, Altun metallogenic belt is one of the key exploration areas for mineral resources in Western China, and is also one of the Level III metallogenic units divided by the national mineral resource potential assessment pro- ject. In terms of stratigraphy, tectonics, magmatic belt and the associated mineralization, Altun metallogenic belt is divided into three level IV metallogenic units （metallogenic sub-zones）. Fur- thermore, geology and mineral characteristics of every class IV metallogenic units （metallogenic sub-zones） are summarized. According to the time-space relationship of the mineralization and the geological formation, metallogenic series is refined as syngenetic metallogenic, penecontemporaneous metallogenic, epigenetic metallogenic and superficial weathering metallogenic series. Mean- while, several metallogenic series of the same geological formation naturally constitute a metallogenic series genic series prospecting family. This article discourses the regional metallogenic regularity of the 11 family and 16 metallogenic series in Altun metallogenetic belt, which will and exploration work in this area in the future. metalloguide the

关 键 词：成矿区带 成矿系列族 成矿系列 阿尔金 

分 类 号：P618.51[天文地球—矿床学]