Characteristics of iron
ores in Cao Bằng
Vũ Quang Lân,
Nguyễn Văn Năng, Cao Xuân Điệp
the territory of the Cao Bằng Province,
iron ores are distributed in 2 areas: Hòa An, Cao Bằng City and Nguyên Bình - Tinh Túc. At
present, 4 deposits, namely: Ngườm Cháng, Bó Lếch, Nà Rụa, Bản Lũng, and 8 ore
occurrences have been recognized, namely: Bó Nình, Nà Mè, Hào Lịch, Boong
Quang, Tà Phình, Cao Lù, Lũng Luông and Khuổi Tòng. During recent years, the
Geological Mapping Division of North Việt Nam discovered and preliminarily
surveyed 5 new iron ore occurrences. The above iron ore occurrences and
deposits are distributed along NW-SE trending deep-seated faults. Magnetite ore
in the area is of skarn origin, closely related to carbonate sediments of the
Bắc Sơn Formation and mafic, acidic intrusives of the Cao Bằng Complex. Primary
iron ore bodies are usually of nest or lens forms with ores of good quality.
This is the area of good prospect in primary and erratic ores, needed to be
invested for prospecting, exploration and prospect assessment.
Người biên tập: Trần Tất Thắng.