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Articles 1 - 3 of 3
Full-Text Articles in Physical Sciences and Mathematics
Lucius Lee Hubbard, One Of The Copper Country's Greatest Mineral Collectors (1849–1933), Christopher J. Stefano, William B. Barr Jr.
Lucius Lee Hubbard, One Of The Copper Country's Greatest Mineral Collectors (1849–1933), Christopher J. Stefano, William B. Barr Jr.
A. E. Seaman Mineral Museum Publications
No abstract provided.
Copper Isotope Constraints On The Genesis Of The Keweenaw Peninsula Native Copper District, Michigan, Usa, T. J. Bornhorst, Ryan Mathur
Copper Isotope Constraints On The Genesis Of The Keweenaw Peninsula Native Copper District, Michigan, Usa, T. J. Bornhorst, Ryan Mathur
A. E. Seaman Mineral Museum Publications
The Keweenaw Peninsula native copper district of Michigan, USA is the largest concentration of native copper in the world. The copper isotopic composition of native copper was measured from stratabound and vein deposits, hosted by multiple rift-filling basalt-dominated stratigraphic horizons over 110 km of strike length. The δ65Cu of the native copper has an overall mean of +0.28‰ and a range of −0.32‰ to +0.80‰ (excluding one anomalous value). The data appear to be normally distributed and unimodal with no substantial differences between the native copper isotopic composition from the wide spread of deposits studied here. This suggests …
Discovery And Geology Of The Guinness World Record Lake Copper, Lake Superior, Michigan, Theodore J. Bornhorst, Robert Barron
Discovery And Geology Of The Guinness World Record Lake Copper, Lake Superior, Michigan, Theodore J. Bornhorst, Robert Barron
A. E. Seaman Mineral Museum Publications
No abstract provided.