An Analytical Overview of the Precambrian Basement Properties, Source Area of Volcanic Rocks and Some Prospecting Problems in the North Qilian Orogenic Belt

详细信息   

• 责任者：Peng Suxia (School of Resources Management ; Chang’an University ; Xi’ an 710054) ; Yin Chuanming
• 刊名：Geology and Prospecting
• 出版年：2012
• 卷期：48(2)
• 关键词：块状硫化物矿床 ; massive sulfide deposit ; 火山岩 ; volcanic rocks ; 基底 ; basement ; 祁连山 ; Qilian Mountains
• 页码：p.250-258
• 图表：4 illus., 1 tables, 14 refs.
• 分类号：1001
• issnNo：ISSN0495-5331
• isbnNo：CN11-2043/P

摘要

Based on the previous results about structure, marine volcanic rocks and massive sulfide ore deposits in the Caledonian Orogenic belt in north Qilian Mountains, focusing on the material characters of Precamhrian basement, this study analyzed the source and formation mechanism of metamorphic volcanic rocks in strata of different ages, then suggested some prospects of this region. Finally, based on the continental rift system and in combination with previously regional survey data, the authors proposed that the Xiaolongkou-Jiuge Qingyang section is a potential ore prospecting area, which is associated with massive sulfide deposits related to marine volcanic rocks.