新疆喀拉喀什河金刚石找矿指示矿物原生表面特征研究

来源 :新疆地质 | 被引量 : 0次 | 上传用户:linyasa
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
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.
其他文献
期刊
期刊
期刊
期刊
期刊
期刊
产于新疆东准噶尔红柳峡南扎曼苏-鲍尔先吉变形带中的鲍尔羌吉超单元以强烈塑性变形为特征,形成于加里东早期造山运动大陆孤环境,属壳幔混熔的I型花岗岩。 The Bauerqiang Jik
通过对塔里木盆地石炭系地面和钻井剖面的研究,总结出4种典型环境下的岩相特征和沉积序列。盆地内不同地区因局部沉积条件(如古水深、陆源碎屑供给量、古气候等)的不同,出现不同
通过对塔里木盆地塔河3、4号油田贝陶系古风化壳储层特征的详细分析,认为古风化壳储层垂向结构模式有3种,平面上划分为3个次一级地貌单元,进而对储层进行评价。在此基础上还探讨