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纽芬兰西南卡雷断裂带中产有两个著名的银金/贱金属硫化物石英脉状矿床,它们分别赋存在层状石墨片岩和花岗岩两套截然不同岩性中.尽管非常邻近,这两个矿床并不直接接触,但根据地质年代、地球化学和同位素数据,很明显它们都是由温都格拉斯丘陵花岗岩期后的岩浆热液所形成的. 本文提供的REE和Au/Ag背景值资料进一步证明了成矿热液来源于花岗岩浆.在片岩和花岗岩中,含银金矿石英脉的围岩都表现为LREE亏损,这可能系含Cl-的溶液淋滤所致.金银含量在所有岩石类型中都非常低,但在与温都格拉斯花岗岩接触的那些岩石中金的量含稍高。与区域上所有岩石类型相比,该花岗岩中Au、Ag含量最高.
There are two well-known silver / base metal sulfide quartz vein-like deposits in the southwest Newfoundland Carrie fault zone, which are hosted in two distinct lithologies of layered graphite schist and granite, respectively. Despite their close proximity, The deposits are not in direct contact with each other, but according to the geochronology, geochemistry and isotope data, it is clear that they were formed by magmatic hydrothermal fluids after the granite period of the Wehlendalian hilly region. The REE and Au / Ag background data provided in this paper It is further proved that the ore-forming hydrothermal fluid is derived from granite magma. In schists and granites, the surrounding rocks of silver-bearing gold veins show LREE depletion, which may be caused by leaching solution containing Cl- All rock types are very low, but the amount of gold in those rocks that are in contact with the Wondra Granite is slightly higher. Compared with all the rock types in the area, the content of Au and Ag in this granite is the highest.