Chronology and Geochemical Characteristics of Quartz Monzonite (Porphyry) in the Dali Copper-Molybdenum Deposit and Its Geological Significance
详细信息
- 责任者：Hu Shengqi (Faculty of Earth Science ; China University of Geosciences ; Wuhan 430074 ; China) ; Zhou Guofa
- 刊名：Acta Geoscientica Sinica
- 出版年：2012
- 卷期：33(1)
- 关键词：斑岩铜矿床 ; porphyry copper deposit ; 斑岩钼矿床 ; porphyry molybdenum deposit ; 容矿岩 ; host rocks ; 广西 ; Guangxi
- 页码：p.23-37
- 图表：7 illus., 2 tables, 67 refs.
- 分类号：1001
- 出版序号：20130236
- issnNo：ISSN1006-3021
- isbnNo：CN11-3474/P
摘要
Dali quartz monzonite (porphyry) body lies at southern Dali Town of Tengxian County in Guangxi. Through discussing the regional tectonic evolution and exploring the basic properties, causes and tectonic environment of the rocks, the authors analyzed the favorable conditions of mineralization and inferred the porphyry copper-molybdenum mineralization age. The main favorable ore-forming conditions lie in the following three aspects: 1) I-type quartz monzonite (porphyry) is a good parent rock for mineralization; 2)the ore district has relatively high background values of Cu, Mo, Pb, Sn ore-forming elements; and 3) deep fault and #-shaped fault system of the study area constitute a favorable ore-controlling tectonic background.