高级检索

    新疆天山成矿带铁磷矿地质及成矿专属性

    Iron-phosphate deposit geology and metallogenic specialization in the Tianshan metallogenic belt, Xinjiang

    • 摘要: 提要:本文对成矿带内的岩浆岩杂岩体进行了含矿性研究,划分出4个含矿杂岩带与5个矿床成因类型。成矿专属性研究表明:岩浆岩型铁磷矿受古地台边缘深大断裂控制;容矿岩石为主要偏碱性-铁质及铁镁质岩系列;容矿岩石主微量元素明显不和谐;岩石类型共生组合主要表现为黑云母透辉石岩、辉石岩、碱性辉长岩、斜长岩、碳酸岩的共伴生;矿物共生组合主要表现为透辉石+磷灰石+磁铁矿+黑云母,斜长石+磷灰石+磁铁矿+钠黝帘石组合,辉石+磷灰石+磁铁矿等特征;元素的共生组合主要表现为P、Fe、Ti、V、REE具显著相关性。通过预测研究,进行了找矿远景区的划分,划分出具有成矿条件的9个找矿远景区。

       

      Abstract: Abstract:This paper deals with the mineral-bearing characteristics of magmatite complex rocks in the Tianshan metallogenic belt. 4 mineral-bearing complex rock belts and 5 deposit genetic types have been determined. The research on metallogenic specialization shows the following characteristics: 1) Magmatite iron phosphate is controlled by the deep fracture at the edge of the platform; 2) The host rock is mainly of the alkaline ferruginous-mafic rocks suite; 3) The major and trace elements in host rack are obviously inconsistent with each other; 4) The paragenesis of rock types mainly shows the association relationships of biotite diopsidite, pyroxenite, alkaline gabbro, plagioclase and carbonate rock; 5) Mineral paragenesis mainly shows the characteristics of diopside + apatite + magnetite + biotite, plagioclase + apatite + magnetite + soda-zoisite and pyroxene + apatite + magnetite. The elements paregenesis shows notable correlation of P, Fe, Ti, V and REE. Based on prognostic research, the authors delineated 9 ore perspective areas with ore-forming conditions.

       

    /

    返回文章
    返回