- 责任者：Li Yanhe (Key Laboratory of Metallogeny and Mineral Assessment ; Institute of Mineral Resources ; MLR ; Beijing 100037 ; China) ; Zhang Zengjie
- 刊名：Mineral Deposits
- 出版年：2011
- 卷期：30(4)
- 关键词：含铁建造 ; iron formation ; 变质作用 ; metamorphism ; 河北 ; Hebei Province
- 页码：p.645-653
- 图表：5 illus., 2 tables, 16 refs.
- 分类号：1001
- issnNo：ISSN0258-7106
- isbnNo：CN11-1965/P
The Precambrian Banded Iron Formations (BIF) are the most important iron resource both in China and abroad, whether in the exploratory reserves or in the quantity of the exploitation. BIF were also the special geochemical sediments in the early earth history which recorded the composition and the redoxomorphic stage of the contemporary atmosphere and the ocean as well as their evolution. Based on a comparative study of the time of the BIF formation, the authors have concluded that the BIF in China were deeply buried immediately after their formation, and subsequently they experienced regional metamorphism and migmatization. The BIF in China experienced no weathering for a long time at the earth’s surface, which is the reason why the paleo-weathering crust type of enriched iron ore cannot be found in China.