The Penokee Iron-Bearing Series of Michigan and Wisconsin is an unchanged, high-quality reprint o...
The Copper-Bearing Rocks of Lake Superior is an unchanged, high-quality reprint of the original e...
Monographs of the United States Geological Survey. The Copper-bearing Rocks of Lake Superior
Monographs of the United States Geological Survey. The Copper-bearing Rocks of Lake Superior
This work has been selected by scholars as being culturally important, and is part of the knowled...
This work has been selected by scholars as being culturally important, and is part of the knowled...
Observations On the Junction Between the Eastern Sandstone and the Keweenaw Series On Keweenaw Po...
Observations On the Junction Between the Eastern Sandstone and the Keweenaw Series On Keweenaw Po...
The Greenstone Schist Areas of the Menominee and Marquette Regions of Michigan: A Contribution to...
Geologists and rock enthusiasts alike will appreciate this detailed study of the greenstone schis...