Supergene Enrichment and Mineralization Texture of Nickel in Laterite Weathered Crust from Ultrabasic Rocks: A Case Study of Kolonodale Ore District in Sulawesi Island, Indonesia
详细信息
- 责任者：Fu Wei (Department of Earth Sciences ; Guilin University of Technology ; Guilin 541004 China) ; Niu Hujie
- 刊名：Mineral Deposits
- 出版年：2012
- 卷期：31(2)
- 关键词：镍矿 ; nickel ores ; 红土型矿床 ; lateritic type deposit ; 印度尼西亚 ; Indonesia
- 页码：p.229-240
- 图表：5 illus., 2 tables, 29 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
摘要
The Kolonodale ore deposit, located in Sulawesi Island of Indonesia, was chosen as the research target for the study of the Ni supergene enrichment and mineralization texture in the laterite weathering crust from ultrabasic rock. 3 161 samples collected from 201 shallow-well profiles were analyzed for Ni grade. The results show that the average Ni grade of laterite weathered crust has good relationship with topography and land form. A comprehensive analysis shows that the Ni supergene enrichment and mineralization in Kolonodale area are attributed to the weathering process of the outcropped ultrabasic rock body under the conditions of active plate tectonic movement and tropical rainforest climate.