新疆大学地质与矿业工程学院
纸质出版:2017
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[1]弓小平,李晓光.西天山阿吾拉勒铁成矿带西段含矿地层地球化学特征及成矿过程分析[J],2017,34(03):273-278.
[1]弓小平,李晓光.西天山阿吾拉勒铁成矿带西段含矿地层地球化学特征及成矿过程分析[J],2017,34(03):273-278. DOI: 10.13568/j.cnki.651094.2017.03.004.
DOI:10.13568/j.cnki.651094.2017.03.004.
阿吾拉勒铁成矿带是天山重要的铁成矿带之一
先后发现了一系列不同成因类型的大中型铁矿床
本文以阿吾拉勒铁成矿带西段典型矿床含矿地层为研究对象
通过对火山碎屑岩地球化学特征分析发现
火山碎屑岩属于亚碱性系列安山质火山碎屑岩
成岩物质主要来自于地壳
并有一定比例的来自地幔的岩浆加入
产于陆源岛弧环境
具板块汇聚边缘成岩固有特点
推测与石炭纪阿吾拉勒山由岛弧向裂谷的变迁有关.成矿过程基本可以划分为三个阶段:第一阶段属于安山质含矿岩浆的形成;第二阶段属于火山活动和含矿地层的形成;第三阶段属于后期的岩浆热液对矿源层的叠加富集.
Awulale iron metallogenic belt is one of the important iron metallogenic belts in Tianshan mountains
has found a series of different genetic types of large and medium-sized iron ore deposit
In this paper
western of Awulale iron metallogenic belt typical deposit as the research object
based on the analysis of the geochemical characteristics of the volcanic clastic rocks
it is found that the volcanic clastic rocks belong to the subalbine series of andesitic volcanic clastic rocks.The diagenetic material comes mainly from the crust and has a certain proportion of magma from the mantle.It is native to the continental arc environment
and it has the inherent characteristics of the tectonic plates.Suggesting that the Carboniferous Awulale Mountain is related to the change from the island arc to the rift.The metallogenetic process can be divided into three stages:The first stage belongs to the formation of the mineral magma of andesitic;The second stage belongs to the volcanic activity and the formation of ore-bearing strata;The third stage is the superimposed accumulation of magma in the source layer.
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