The Lalangmai tungsten deposit is located in the eastern section of East Kunlun,Qinghai Province,in the Gouli integrated exploration area.The mineralization geological background and conditions are superior.Previous researchers conducted a 1∶50 000 river sediment survey in the research area and delineated the HS67(W-Sb)abnormal area.It is a favorable mineralization area for searching for tungsten ores.This paper conducts verification work on the HS67(W-Sb)anomaly to identify the resource prospects in the area and delineate the prospecting target area.This article adopts a technical method that combines 1∶10 000 soil geochemical measurement,1∶10 000 fluorescence geological mapping,trenching and drilling engineering.A breakthrough in ore prospecting was achieved,and good ore prospecting results were achieved,with 21 newly discovered tungsten ore bodies.The genetic type of the deposit is initially determined to be a skarn-type tungsten deposit.The strongly developed skarn-type tungsten mineralization is closely related to the widely exposed tonalite diorite.Combined with the existing geochronology data in the East Kunlun area and regional geological structural evolution characteristics,it is believed that the tonalite diorite in the Lalangmai area was formed in the post-collision stage of the proto-Tethys tectonic cycle,and confirming that the late Caledonian period in the East Kunlun area was also a very important polymetallic mineralization period.Sufficient attention should be paid to this work in future geological prospecting and exploration work.
关键词
钨矿/地质特征/化探异常/找矿方向/东昆仑/拉浪麦
Key words
prospecting prediction/geological characteristics/Lalangmai tungsten deposit/East Kunlun of Qinghai Province
维普
万方数据