新疆塔县阿依里西铁矿地质特征及找矿意义

Characteristics and Prospecting Significance of Ayilixi Iron Deposit in Taxian County of Xinjiang Uygur Autonomous Region

阿依里西铁矿位于华南板块的羌唐微板块北缘与塔里木板块墓士塔格地块结合部位,产于古元古代布伦阔勒群变质岩系中,矿体呈似层状、层状产出,矿石自然类型为磁铁矿石,属"鞍山式"沉积变质型铁矿,经济储量可观。该铁矿的发现、勘查及开发,对缓解新疆铁矿石资源紧张状况有极大的促进作用。该文简要分析了该铁矿的成矿特征和赋存状态,探讨了该区的找矿方向。

Ayilixi iron deposit is located in the combination part of north edge of Qiangtang micro-plate in the South China plate and Mushitage block of Talimu plate. It occurred in metamorphic rocks of the Paleoproterozoic Buluokuole group. Its orebody were stratiform and layered type. Its natural type was magnetite ores, and belonged to ＂Anshan type＂ metamorphic iron deposit. Its controlling economic and basic reserves （122b） were 33.14 million tons, inferred intrinsic economic resources amount （333） was 733000t, predicted resources amount （334） was 7971 million tons. There were 400 million to 500 million tons of ore resources arounding the work region. Discovery, exploration and development of Ayilixi iron deposit have a great role in easing the lack of iron resource in Xinjiang Uygur Autonomous Region. In this paper, characteristics and occurrence of iron ore mineralization have been analyzed, and prospecting direction in this area has been put forward as well.