Controlled Blasting on a Production Scale at Thunderbird Mine
- Organization:
- The American Institute of Mining, Metallurgical, and Petroleum Engineers
- Pages:
- 5
- File Size:
- 422 KB
- Publication Date:
- Jan 11, 1972
Abstract
Eveleth Taconite Co. was formed in 1963 to mine and beneficiate taconite on the Mesabi Range. Its Thunderbird mine is located mid-way between the cities of Eveleth and Virginia, Minn. The program for blasting restraints here is unique not only on the Mesabi Range but possibly in the world. The ore is a hard siliceous taconite. Its structure varies from bedded to massive with prominent vertical jointing. The jointing of the top or outcrop of the orebody is a challenge for the blasting practices as it is the source of an estimated 75% of the secondary breakage.
Citation
APA: (1972) Controlled Blasting on a Production Scale at Thunderbird Mine
MLA: Controlled Blasting on a Production Scale at Thunderbird Mine. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1972.