梁孝伟,杨凡凡.新疆恰瓦克南钛磁铁矿成矿地质条件、控矿因素及找矿预测[J].地质找矿论丛,2023,38(1):73-80
新疆恰瓦克南钛磁铁矿成矿地质条件、控矿因素及找矿预测
Metallogenic and geological condition of Qiawak South Ti-magnetite deposit in Xinjiang, the ore-control factors and the ore prediction
投稿时间:2022-10-27  
DOI:10.6053/j.issn.1001-1412.2023.01.009
中文关键词:  恰瓦克南钛磁铁矿  塔里木盆地  成矿地质条件  控矿因素  找矿预测  新疆
英文关键词:Qiawak South Ti-magnetite deposit  Tarim basin  geological and metallogenic condition  ore-control factor  ore prediction  Xinjiang
基金项目:
作者单位
梁孝伟 中国冶金地质总局新疆地质勘查院, 乌鲁木齐 830063 
杨凡凡 新疆工程学院, 乌鲁木齐 830023 
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中文摘要:
      恰瓦克南钛磁铁矿位于巴楚断隆的西北段,产于华力西晚期的NWW向构造穹隆NWW向与基底性的NWW向断裂的交汇部位,成矿与麻扎塔格杂岩体中的基性-超基性岩具有直接联系。钛磁铁矿体具有较大的规模,矿体呈层状或似层状,赋矿岩石主要为辉长岩、辉石岩和橄辉岩,矿体均为隐伏矿体,矿石铁品位w(TFe)=10.21%~17.36%,属于低品位磁铁矿床。恰瓦克南钛磁铁矿床与附近的瓦吉里塔格钒钛磁铁矿床具有相似的成矿条件和矿床地质特征,成矿物质主要来源于基性-超基性岩体,基性岩浆的演化促成钛磁铁矿的聚集成矿,而构造穹隆产生NNW向断裂和NEE向断裂的交汇部位则控制着成矿基性-超基性岩的上侵和定位。文章还对进一步的找矿工作进行了预测。
英文摘要:
      Qiawak South Ti-magnetite deposit is located at intersection of NWW fault dome and basemental NWW fault in the Northwest part of Bachu tectonic uplift. Metallogenetically it is directly related to basic-ultra basic rocks in the Mazatage complex. Ore bodies are blind large layers or layeroid ones hosted mainly by gabbro, pyroxenolite and peridolite. The ore is in low grade about w(TFe)=10.021%~17.36%. It is similar in geological characteristics and metallogenetic condition to Wajilitak vanadium-titanium magnetite deposit. Magnetite accumulated to ore with evolution of the basic magma. Intersection of the tectonic dome-generated NWW fault and NEE fault controls up invasion and location of the basic-ultra basic rocks. The ore prediction is made according to the mentioned above.
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