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新疆喀拉喀什河水系的重砂矿物中发现了高格铬铁矿、镁铝榴石、镁钛铁矿和格透辉石等金刚石找矿指示矿物。结果表明,这些重砂矿物不仅发育因河流和风力搬运作用形成的次生表面特征(如贝壳状断口、V形撞击坑等),个别矿物还残留有金刚石找矿指示矿物原生表面特征,如丘状突起、三角和菱形熔蚀坑等刻蚀表面(SS),且为轻微磨损类。这些残留有刻蚀表面(SS)的矿物形成于金伯利岩岩浆最后侵位阶段,结合该区水动力条件,推测它们被报运距离约10~50km。
In the heavy sand minerals of the Karakashi River system in Xinjiang, high-grade chromite, peridotite, magnesia-ilmenite and orthopyroxene are found in the mineral deposits. The results show that these heavy grit minerals not only develop secondary surface features (such as conchoidal fractures, V-shaped craters, etc.) formed by river flow and wind handling, but also exhibit some of the primary mineral surface mineralogical features such as mound Like protuberances, triangular and rhombic corrosion pits etched surface (SS), and a slight wear category. These remnants of surface-etched minerals (SS) formed during the final emplacement of kimberlite magma. Combined with the hydrodynamic conditions in the area, it is speculated that they are being transported about 10-50 km apart.