Trace Elements and REE Geochemistry of Copper-Bearing Sandstone in the Middle Submember of the Liuju Member of the Upper Cretaceous Matoushan Formation,
- 责任者：Li Jing (Faculty of Land and Resource Engineering ; Kunming University of Science and Technology ; South-West Institute of Geological Survey ; Geological Survey Centre for Nonferrous Metals Resources ; Kunming 650093 ; China) ; Wu Jing
- 刊名：Geological Bulletin of China
- 出版年：2010
- 卷期：29(6)
- 关键词：铜矿 ; copper ores ; 砂岩 ; sandstone
- 页码：p.945-952
- 图表：4 illus., 3 tables, 25 refs.
- 分类号：1001
- issnNo：ISSN1671-2552
- isbnNo：CN11-4648/P
The Middle Submember of the Liuju Member in the Upper Cretaceous Matoushan Formation is one of the copper-bearing horizons in the Liuju sandstone copper district. The sulphophile elements such as Mo, Cd, As and Cu are enriched in the sandstone. Trace elements are enriched in gray sandstone and depleted in purple sandstone. It indicates that the copper ore and wall rock have the similar provenance. The copper ore formed by water-rock interaction of wall rock with weak alkaline and reducing property condition. The metallogenic mechanism is similar to that in the Liuju copper deposit.From north to south in Xiaohe ore block, the weakening mineralization ability of Cu, and the ore belt deflect to west part (purple sandstone).