IC 7877 Zinc-Ore Mining And Milling Methods, Piquette Mining And Milling Co., Tennyson, Wis. ? Summary
- Organization:
- The National Institute for Occupational Safety and Health (NIOSH)
- Pages:
- 20
- File Size:
- 3515 KB
- Publication Date:
- Jan 1, 1959
Abstract
The Piquette Mining and Milling Co, operates a zinc mine and concentrating mill in the Upper Mississippi Valley zinc-lead district near Tennyson, Wis. The principal ore mineral is zinc sulfide, which occurs in limestones and dolomites of the Decorah formation. Exploration in the district is by churn drilling from the surface. An adit at the base of the ore zone provides access to the mine. A room-and- pillar mining method with irregular pillars is used. Drilling is done with Jumbo-mounted drills. The broken ore is loaded by crawler-mounted front-end loaders into diesel-powered trucks for haulage direct to the mill.
Citation
APA: (1959) IC 7877 Zinc-Ore Mining And Milling Methods, Piquette Mining And Milling Co., Tennyson, Wis. ? Summary
MLA: IC 7877 Zinc-Ore Mining And Milling Methods, Piquette Mining And Milling Co., Tennyson, Wis. ? Summary. The National Institute for Occupational Safety and Health (NIOSH), 1959.