新疆青河县3号金矿预查区地质特征及土壤地球化学找矿方法运用

The geological feature of the 3rd gold re-inspection area in Qinghe county,Xinjiang and the soil geochemical exploration method to use

工作区位于准噶尔褶皱系,沉积厚度巨大,岩浆喷发活动强烈,构造活动频繁,断裂褶皱复杂。处于准噶尔Ⅱ级成矿区,金、铜、汞Ⅲ级成矿带中部偏西。成矿带北部受断裂和岩性控制,以铜、金、汞为主,具有斑岩型铜、金矿的成矿前景。成矿带南部以金为主,受断裂控制。通过对1:25000土壤地球化学测量结果进行分析,圈定了的2个乙类异常区。T乙-1异常区位于工作区北部,石英脉较为发育,同时该异常区As元素值较高。可以推测深部有存在隐伏的断裂带,该带内存在金矿富集的可能。根据异常显示,进行踏勘,在T-乙1异常区东南部发现矿化点。对其追索并施工探槽揭露,发现一条厚2-3米,长约2公里的矿化脉体。

Work area is located in the Junggar fold line being that deposition thickness is enormous, the magma gushes is intense, structural activity frequently, breaking complicated. It is in Ⅲ grade ore belt of gold, copper and mercury, central west of Ⅱ grade ore zone of the Junggar. Mineralization zone in the northern controlled by the fracture and rock to copper, gold, mercury-based, with porphyry copper and gold mineralization prospects. With gold mineralization in the southern mainly controlled by the fracture. By the analysis of the results of 1：25,000 soil geochemical survey, two B abnormal area the are delineated. T B- 1 abnormal area is located in the northern of work area, with more development of quartz vein , the abnormal high value of As elements. That can have a deep presence of the hidden fault, there may be gold enrichment. According to direction of the abnormal element, spot survey carried out in the abnormal area T - B- 1, mineralization points found in the southeastern of the area. Reeoursing to its construction and exploration slot , found a mineralized vein about 2- 3 meter thick, 2 km long.