Characteristics of Sedimentary Formations and the Preliminary Enrichment Model of Pb-Zn Deposits in the North Part of
详细信息
- 责任者：Chen Jianping (Beijing Key Laboratory of Research and Exploration Information of Land Resources ; Institute of Land Resources and High Techniques ; China University of Geosciences ; Beijing 100083 ; China) ; Cong Yuan
- 刊名：Journal of Chengdu University of Technology
- 出版年：2010
- 卷期：37(4)
- 关键词：铅锌矿床 ; lead-zinc deposit ; 沉积建造 ; sedimentary formation ; 青藏高原 ; Qinghai-Tibetan Plateau
- 页码：p.469-474
- 图表：6 illus., 1 table, 8 refs.
- 分类号：1001
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
摘要
This paper discusses the primarily enriched mineralization materials which are very important to the formation of Pb-Zn mineral deposits in study area. Based on the ore characteristics of the representative ore deposits and the study of the sedimentary environments of Upper Triassic Bolila Formation and Lower-Middle Permian Gadikao Formation, the paper indicates that the structure setting of study area is a back-arc basin from Middle Permian Period to Late Permian Period, and has formed the source bed of mineralization. The structure setting of study area is volcanic arc setting from Early-Middle Triassic Period to Late Triassic Period, and the mineralization is a stratabound pre-concentration type. The exhalative hydrothermal sedimentary mineralization of this basin has caused the mineralization materials such as Pb and Zn etc. primarily enriched from Triassic Period to Permian Period in study area.