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新疆南部首次发现质量好的祖母绿(绿柱石),其成矿地质条件研究意义重大。本文主要对新疆南部祖母绿(绿柱石)矿的成矿地质条件进行初步探讨,包括区域地质特征、矿区及矿体地质特征、矿石显微矿物学特征等。发现新疆祖母绿矿体的形成和分布,受区内地层、岩浆、构造等多种因素和条件限制。祖母绿(绿柱石)多产于含碳质灰岩、页岩的方解石、方解石-石英细脉中,含祖母绿(绿柱石)矿脉多以斜交脉、顺层脉产出。在此研究基础上,根据所采集的样品,进行了显微矿物组合特征和生成顺序的微观矿物学研究,将成矿作用过程划分为三个期次,即成矿前、成矿期、成矿后。得出在成矿期形成的主要矿物为方解石、石英、钠长石、绿柱石等。通过上述研究,对该区祖母绿(绿柱石)找矿具有重要的指导意义。
The first discovery of good emerald (beryl) in southern Xinjiang shows great significance in the study of the metallogenic geological conditions. This paper mainly discusses the mineralization geological conditions of the emerald (beryl) ore in the southern part of Xinjiang, including the regional geological characteristics, the geological characteristics of the ore area and the orebody and the micro-mineralogy characteristics of the ore. It is found that the formation and distribution of emerald ore bodies in Xinjiang are limited by various factors and conditions, such as strata, magma and structure. Emerald (beryl) is prolific in carbonaceous limestone, shale calcite, calcite - quartz veins, with emerald (beryl) veins mostly in oblique veins, the formation of pulse. On the basis of this study, based on the collected samples, microscopic mineralogy study of microscopic mineral assemblages and genesis sequences was conducted. The mineralization process was divided into three phases: pre-metallogenesis, mineralization, mineralization Rear. It is concluded that the main minerals formed during the mineralization are calcite, quartz, albite and beryl. Through the above research, it is of great significance to prospecting for emerald (beryl) in this area.