More articles from Economic geology, general

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On some of the mining districts of Arizona near the Rio Colorado ...
Benjamin Silliman

American Journal of Science May 1866, s2-41 (123) 289-308; DOI: https://doi.org/10.2475/ajs.s2-41.123.289
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Notes on coal and iron ore in the State of Guerrero, Mex. [with Note on the Azoic age and metamorphic origin of the iron ore, by J. D. Dana]
N. S. Manross and James Dwight Dana

American Journal of Science May 1865, s2-39 (117) 309-312; DOI: https://doi.org/10.2475/ajs.s2-39.117.309
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On the saliferous rocks and salt springs of Michigan
Alexander Winchell

American Journal of Science November 1862, s2-34 (102) 307-311; DOI: https://doi.org/10.2475/ajs.s2-34.102.307

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