新疆卡乌留克塔格铁磷矿地质及地球化学研究

STUDY ON GEOLOGY AND COMPREHENSIVE UTILIZATION OF MAGNETITE AND APATITE DEPOSIT OF KAWULIUKE TAG IN SINKIANG

卡乌留克塔格铁磷矿,赋存于塔里木地台北缘库鲁克塔格断隆南侧的基性-超基性杂岩体内低品位特大型矿床。通过对该矿床含矿杂岩体特征、杂岩体岩石化学组成、微量元素、稀土元素组成与矿床特征以及铁、磷选矿试验研究并对铁、磷、钛、稀土元素综合利用前景的分析。认为含磷岩石相属偏碱性铁质岩系列;杂岩体中主微量元素明显不和谐,岩石中不相容元素明显富集(Ba、Sr、Zr、P),相容元素(Cr、Co、Ni)亏损;稀土元素含量较高,轻稀土元素高度富集,Eu无明显异常,杂岩体岩浆来源于地壳深部;在挥发分的作用下,辉石岩中大量磷灰石的晶出,形成磁铁矿与磷灰石的共生,并在局部地段高度富集形成铁磷矿体。根据目前我国北方内生低品位共生铁磷矿开发利用情况,卡乌留克塔格铁磷矿综合利用前景可观。

Magnetite and apatite ore of Kawuliuke Tag is hosted in the low-grade oversize deposit of basic-ultrabasic complex, which located at the south of Kuluke Tag, north edge of Tarim platform. We had taken the ore dressing research on the magnetite and apatite of the deposit and analyzing the comprehensive utilization future of magnetite, apatite, titanium, rare earth elements after describing the characteristics, compositions, microelement, and rare earth element compositions of the ore-bearing complex as well as the deposits characteristics in the paper. The phosphorus-bearing rock facies belongs to basic ferruginous rock series. The major elements and trace elements in complex are not harmonious, the incompatible elements （Ba, Sr, Zr, P ）are enrich but the compatible elements（ Cr, Co,Ni）are deficit. The content of the rare earth elements is high, light rare earth elements are enrich, and Eu has no obviously anomaly. The magma of the complex derives from deep crust. The crystallization of apatite in the pyroxenite form the paragenesis of magnetite and apatite, and some magnetite and apatite orebodies in some local place effected by volatile component. So we have foundthe better future of comprehensive utilization of magnetite and apatite of Kawuliuke Tag area according to the developing and utilization status of endogenesis low-grade paragenesis magnetite and apatite of north-China.