Minnesota

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The stratigraphic position of the Thomson slates [Minnesota]
Josiah Edward Spurr

American Journal of Science August 1894, s3-48 (284) 159-166; DOI: https://doi.org/10.2475/ajs.s3-48.284.159
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Actinolite-magnetite schists from the Mesabi iron range, in northeastern Minnesota
William Shirley Bayley

American Journal of Science September 1893, s3-46 (273) 176-180; DOI: https://doi.org/10.2475/ajs.s3-46.273.176
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A fibrous intergrowth of augite and plagioclase, resembling a reaction rim, in a Minnesota gabbro
William Shirley Bayley

American Journal of Science June 1892, s3-43 (258) 515-520; DOI: https://doi.org/10.2475/ajs.s3-43.258.515
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Geological age of the Saganaga syenite
Alfred Richard Cecil Selwyn

American Journal of Science April 1892, s3-43 (256) 319-322; DOI: https://doi.org/10.2475/ajs.s3-43.256.319
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Geological age of the Saganaga syenite
Horace Vaughan Winchell

American Journal of Science May 1891, s3-41 (245) 386-390; DOI: https://doi.org/10.2475/ajs.s3-41.245.386
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An attempt to harmonize some apparently conflicting views of Lake Superior stratigraphy
Charles Richard Van Hise

American Journal of Science February 1891, s3-41 (242) 117-137; DOI: https://doi.org/10.2475/ajs.s3-41.242.117
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The origin of the soda-granite and quartz-keratophyre of Pigeon Point [Minnesota]
William Shirley Bayley

American Journal of Science April 1890, s3-39 (232) 273-280; DOI: https://doi.org/10.2475/ajs.s3-39.232.273
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A quartz keratophyre from Pigeon Point and Irving's augite syenites
William Shirley Bayley

American Journal of Science January 1889, s3-37 (217) 54-63; DOI: https://doi.org/10.2475/ajs.s3-37.217.54
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On some peculiarly spotted rocks from Pigeon Point, Minnesota
William Shirley Bayley

American Journal of Science May 1888, s3-35 (209) 388-393; DOI: https://doi.org/10.2475/ajs.s3-35.209.388
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The Minnesota Valley in the Ice Age
W. Upham

American Journal of Science February 1884, s3-27 (158) 104-111; DOI: https://doi.org/10.2475/ajs.s3-27.158.104

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