Geological Characteristics and Prospecting Direction of Dimunalike Iron Deposit in East Kunlun, Xinjiang
详细信息
- 责任者：Ding Haibo (Third Geological Branch ; Xinjiang Geological and Mineral Bureau ; Korla 841000 ; China) ; Yang Xiaofei
- 刊名：Mineral Deposits
- 出版年：2013
- 卷期：32(1)
- 关键词：铁矿 ; iron ores ; 新疆 ; Xinjiang
- 页码：p.195-206
- 图表：illus., 3 tables, 12 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
摘要
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.