The Gogebic Iron Range?A Sample of the Northern Margin of the Penokean Fold and Thrust Belt

ISBN-13: 9781496082695 / Angielski / Miękka / 2014 / 52 str.

U. S. Department of the Interior

Opis

The Gogebic iron range is an elongate belt of Paleoproterozoic strata extending from the west shore of Lake Gogebic in the upper peninsula of Michigan for about 125 km westward into northern Wisconsin. It is one of six major informally named iron ranges in the Lake Superior region and produced about 325 million tons of direct-shipping ore between 1887 and 1967. A significant resource of concentrating-grade ore remains in the western and eastern parts of the range.

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