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青海省都兰县叶陇沟金矿位于东昆仑成矿带的东段,主要赋存于古元古界白沙河岩组与华力西期花岗闪长岩接触带部位,区内岩脉发育。通过1∶5万水系沉积物测量,初步查明了该区元素分布规律和组合特征、异常强度和浓度分带特征,并在该地区圈出了1处峰值较高的金异常,经对异常进行1∶2.5万水系沉积物加密检查,缩小了异常范围,并发现了2条蚀变破碎带,金品位2.8～7.28 g/t。从矿体形态、产状、结构构造及成矿空间分布与地质构造、地层与岩浆关系、矿体与异常分布等方面进行研究,分析矿区矿床地质、地球化学异常特征,概述矿区的地层、断裂构造体系和岩浆岩的分布情况,并探讨叶陇沟地区金多金属矿的成矿空间分布与地质构造、地层、岩浆岩的关系,建立找矿标志。
The Yelonggou gold deposit in Dulan County, Qinghai Province is located in the eastern Kunlun metallogenic belt and mainly occurs in the contact area between the Baishahe Formation and the Wahlixi granodiorite in the Paleoproterozoic. development. Through 1: 50000 sediments measurements, the elemental distribution and assemblage characteristics, anomalous intensity and concentration banding characteristics of this area have been initially identified, and a high peak gold anomaly has been circled in this area. 1: 25000 water system sediment encryption inspection, narrowing the anomaly range, and found two alteration broken zone, gold grade 2.8 ~ 7.28 g / t. From the aspects of ore body morphology, occurrence, structure and spatial distribution of mineralization, geological structure, relationship between strata and magma, distribution of ore body and anomaly, the paper analyzes the geology and geochemical anomaly characteristics of ore deposits, summarizes the strata and faults Tectonic system and distribution of magmatic rocks, and to explore Yemen GOLD gold polymetallic ore mineralization spatial distribution and geological structure, stratigraphy and magmatic rocks, the establishment of prospecting signs.