【摘要】：產(chǎn)于內(nèi)蒙古索倫山縫合帶蛇綠巖中的菱鎂礦,其深入研究對(duì)于菱鎂礦的勘查、增加戰(zhàn)略礦產(chǎn)資源以及國(guó)民經(jīng)濟(jì)的發(fā)展有重大意義。本文對(duì)內(nèi)蒙古索倫山地區(qū)菱鎂礦進(jìn)行了系統(tǒng)的調(diào)查和研究,通過(guò)歸納索倫山地區(qū)菱鎂礦礦床地質(zhì)特征,探討了索倫山地區(qū)菱鎂礦礦床的成礦地質(zhì)條件,在此基礎(chǔ)上,分析和評(píng)價(jià)了索倫山地區(qū)菱鎂礦的找礦潛力。索倫山地區(qū)菱鎂礦產(chǎn)于索倫山蛇綠巖的地幔橄欖巖內(nèi),受巖體內(nèi)部微小構(gòu)造控制,礦體貧富受風(fēng)化程度的制約,受超基性巖風(fēng)化淋濾形成。菱鎂礦與超基性巖硅質(zhì)風(fēng)化殼在成因上具有耦合關(guān)系,上部為風(fēng)化淋濾殘留物—超基性巖硅質(zhì)風(fēng)化殼,下部為風(fēng)化淋濾的產(chǎn)物—菱鎂礦。索倫山地區(qū)含菱鎂礦的地幔橄欖巖巖體巨大,深部礦體眾多,與國(guó)內(nèi)西藏巴夏式菱鎂礦在成礦條件和成礦模式方面相一致。所以,索倫山地區(qū)具有較大的菱鎂礦找礦潛力。
[Abstract]:The study of magnesite in ophiolite of Suolenshan suture zone in Inner Mongolia is of great significance for the exploration of magnesite, the increase of strategic mineral resources and the development of national economy. This paper makes a systematic investigation and study on magnesite deposits in Suolenshan area, Inner Mongolia. By summarizing the geological characteristics of magnesite deposits in Suolenshan area, the metallogenic geological conditions of magnesite deposits in Suolenshan area are discussed. The prospecting potential of magnesite in Suolenshan area is analyzed and evaluated. The magnesite occurs in the mantle peridotite of the ophiolite in the Solenshan area, which is controlled by the micro structure of the rock body, restricted by the weathering degree of the rich and the poor ore bodies, and formed by weathering and leaching of the ultrabasic rocks. Magnesite and ultrabasic siliceous weathering crust have a coupling relationship in origin. The upper part is weathering leaching residue-ultrabasic rock siliceous weathering crust, and the lower part is weathering leaching product magnesite. The mantle peridotite with magnesite bearing magnesite in Suolenshan area is very large and there are many deep orebodies which are consistent with the Baxia magnesite deposit in Tibet in terms of metallogenic conditions and metallogenic model. Therefore, the Suolenshan area has great magnesite prospecting potential.
【作者單位】： 中國(guó)地質(zhì)大學(xué)(北京)地球科學(xué)與資源學(xué)院;武警黃金第二支隊(duì);
【基金】：中國(guó)地質(zhì)調(diào)查局區(qū)域地質(zhì)礦產(chǎn)調(diào)查項(xiàng)目(編號(hào):12120113071800)資助
【分類號(hào)】：P618.46

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本文編號(hào)：2257280