投稿时间：2012-04-09
修订日期：2012-12-30
中文摘要:迪木那里克铁矿床处于新疆东昆仑西段,位于阿尔金陆缘地块祁漫塔格古生代复合沟弧带中。矿体主要赋存于中-上奥陶统祁漫塔格群浅变质碎屑岩-火山碎屑岩中,矿体多呈似层状、条带状产出,与地层产状基本一致,层控作用比较明显,矿体塑性变形较强;矿石主要为条带状石英-磁铁矿和块状磁铁矿矿石;矿石品位较低(TFe=20%~40%);围岩蚀变特征明显。文章从成矿地质背景和矿床地质特征出发,重点从矿床规模、矿体产状、赋矿层位、围岩性质、矿石特征等方面探讨了迪木那里克铁矿床的成因,并提出在该区寻找同类矿床的标志。该铁矿床属海相火山沉积变质型铁矿,可利用矿区地层、构造、围岩蚀变、航磁异常等作为找矿标志。
Abstract:Based on geological background and geological features, this paper deals with the genesis of the Dimunalike iron deposit and the ore-prospecting criteria in search for ore deposits of the same type, with emphasis placed on such aspects as the deposit size, attitude of ore body, ore-bearing horizon, surrounding rocks and ore characteristics. The Dimunalike iron deposit is located in the western part of East Kunlun in Xinjiang. Its tectonic position is the Qimantag Paleozoic complex trench-arc belt in Altun continental margin block. The deposit mainly occurs in metamorphosed clastic rocks - pyroclastic rocks of the Middle-Upper Ordovician Qimantag Group. Most ore bodies are nearly stratiform or banded, some have undergone strong plastic deformation, and ores mainly show obvious stratabound nature. The ores are mainly banded quartz-magnetite and bulk magnetite, with a relatively low grade (TFe=20%~40%), and wall rocks have obviously experienced alteration. The iron ore is of the sedimentary-metamorphic type, and hence the stratigraphy, tectonics, rock alteration and aeromagnetic anomaly can be used together for ore prospecting.
keywords:geology iron deposit geological characteristic protecting Dimunalike East Kunlun in Xinjiang
文章编号：
中图分类号：P618.31
文献标志码：
基金项目:本文得到新疆维吾尔自治区地质勘查中央专项资金项目(编号: ZYZXKC2006-2),新疆维吾尔自治区地质勘查基金项目(编号: K08.4.6,K09.4.1);中国地质调查局地质矿产调查评价专项项目(编号:1212011120548)的联合资助
引用文本：
丁海波,杨晓飞,张朋,余兵,周福新.2013.新疆东昆仑迪木那里克铁矿床地质特征及找矿方向[J].矿床地质,32(1):195~206DING HaiBo,YANG XiaoFei,ZHANG Peng,YU Bing,ZHOU FuXin.2013.Geological characteristics and prospecting direction of Dimunalike iron deposit in East Kunlun, Xinjiang[J].Mineral Deposits32(1):195~206
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