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USA | |
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| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
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| William S. Cordua collection |
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| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
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| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
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| Cordua, W. (1989) Goethite pseudomorphs after marcasite, Maiden Rock, Wisconsin: Rocks and Minerals: 64(2): 124-127. |
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| William Cordua |
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| Cordua, W.S., 2007, "The Rock Elm Disturbance, basic geology of an Ordovician extraterrestrial impact in western Wisconsin ", in Paleozoic Stratigraphy to Quaternary Features of the River Falls Area with a special trip to the Rock Elm Impact Structure. Guidebook for the 2007 Tristate Field Conference p. 65-84 plus map. |
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| Cunningham, J, , H. Dolliver & W. Cordua (2011) Flaming meteors, dark caves and raging waters: geological curiosities of western Wisconsin: Miller, et. al. ed. Field guides to the geology of the Mid-Continent of North America: Geological Society of America Field Guide 24: 411-424 |
Hager City dolomite deposit No. 1, Pierce County, Wisconsin, USA