塔里木南缘铁克里克铁矿成矿地质条件与找矿前景分析

铁克里克断隆大地构造隶属塔里木板块南缘，古元古界埃连卡特岩群中深变质火山-沉积岩系组成其结晶基底，中元古界长城纪的赛拉加滋塔格岩群浅变质火山岩系组成过渡基底，蓟县系-古生代浅变质沉积岩系构成沉积盖层。构造活动强烈，岩浆活动较为发育。本区位处铁克里克铜、银、锰、金、铁成矿带，已发现铜、铁、金等多金属矿产。地球物理资料显示该区位于重力梯度带上，处于一个高强度的航磁异常区带内。通过对古元古界埃连卡特群分布区水系沉积物元素分布规律及地层含矿性的研究显示，该地层有利于铁、铜、金、锌等成矿，是塔里木南缘铁克里克断隆区火山-沉积变质型硅铁建造铁矿成矿的有利层位，具有良好的成矿地质条件和寻找大中型变质型铁矿的潜力。

THE METALLOGENIC CONDITION AND PROSPECTING POTENTICAL OF TIEKELIKE IRON ORE DEPOSIT IN THE SOUTHERN TARIM

The tiekelike fault uplift, located in the Southern Tarim, is an important component of the Tarim plate, mainly outcropped the Paleoproterozoic formation, is a medium kata-metamorphic rock series of higher greenschist to amphibolite fades and the transition base is composed of Mesproterozoic erathem Chang Chengian period epimetamorphic rocks~ the sedimentary mantle is composed of Paleozoic metaseds. The study area is located in the tiekelike of Cu-Ag-Mn-Au-Fe, where is characterized by intense tectonic activity, the mineralization belt located to gravity lineament whichis in a high intensity aeromagnetic anomaly zone. By research on the element distribution law of the Stream Sediment and the ore potentiality Of the formation in the Ailiankate group of lower Proterozoic, we know that the formation was beneficial to form the depOsit of iron. copper, gold. zinc etc. The formation and rock characteristics show that the Ailiankate group provided a favorable precondition for the iron ore deposits of silico-iron formation of the volcano sedimentary-metamorphic type. The area of Tiekelike in the Southern Tarim is a beneficial region for the iron ore deposits of silico-iron formation of the volcano sedimentary-metamorphic type, which have a good ore-forming geological conditions and shows great potential to search for large and middle metamorphic type iron ore deposits.