	Cornwall, H.R., Runner, J.J., Stromquist, A.A., Swanson, R.W., White, W.S. (1949) Detailed geologic map of the recently active copper mines; Houghton and Keweenaw Counties, Michigan. Open-File Report Vol. 1949 (50-4) US Geological Survey doi:10.3133/ofr504	Report (issue)
	active copper nines, -..- roughton and Keweenaw Counties, Michigan H. R. Cornwall, J. J. Runner, A. A....bodies ................. 10 Central Exploration fissure mine, 12 Introduction................ + (- ; ...... 33 The Houghton conglomerate >re body, Allouez* No* 3* shaft.* « -.» » .- » » » » * Introduction...copper«...._................,.. 26 ->- Quincy mine* ,.................................... Introduction............^.................... 32 Isle Royale mine ................................... 3U ; *" 30
	*Rosemeyer, Tom (2007) The Kearsarge: Copper-bearing Amygdaloidal Lode. Houghton and Keweenaw Counties, Michigan. Rocks & Minerals, 82 (4) 276-297 doi:10.3200/rmin.82.4.276-297*	Journal (article/letter/editorial)
	Copper-bearing Amygdaloidal Lode Houghton and Keweenaw Counties, Michigan TOM ROSEMEYER PO Box 369, 506 Pine Street...5.5 × 10.0 cm, attributed to the South Kearsarge mine. Author’s specimen, Terry Huizing photo. 276 ROCKS...the secondmost-productive lode discovered in the Michigan copper district. In the heyday of mining it became...specimens of accessory minerals including analcime, calcite, datolite, epidote, microcline, natrolite, prehnite...miners until 1967 when all mining ceased. Many of the mine dumps have disappeared through the years because
	*(1992) Michigan Copper Country. The Mineralogical Record* Vol. 23 (2) The Mineralogical Record, Inc.**	Journal (issue)
	iners with a large mass of native copper in the Quincy mine ca. 1918. (Michigan Technological University...Donald Pearce (1941-1989) The “Copper King” The MICHIGAN COPPER COUNTRY L. W i l s o n New Mexico Bureau...t a n l e y J. D y l II Seaman Mineral Museum Michigan Technological University % 1992 T h e M in e...crystal group, 13.6 cm, from an unknown mine in the Michigan Copper Country. Richard A. Kosnar collection;...wrote the classic work on the copper deposits of Michigan in 1929. Photo by Wendell E. Wilson. TENT .
	*(1920) Mining and Scientific Press* Vol. 121. Mining and Scientific Press**	Journal (volume)
	161 Science and industry. Allen, A. moving from mine-hoists Signaling Allen, C. A 232 cages 645 Allis-Chalmers...book review Assaying methods at the Globe & Phoenix mine 4 51 H. R. Edmands. 108 Association of Accountants.... . 166 473 Co., mill Henry Hanson .... 793 Mine and mill A. B. Parsons. . . . 619, 659 399... Bounty on gold Bourne. F. J. .Human factor in mine management. ... A new track-scale. Boyer, L. R Bradford...1913 to 1919 Production statistics Copper Canyon mine Copperopolis lire . Corless, C. Ditto . . 77
	*Nalivkin, D. V. (1973) Geology of the U.S.S.R.. Oliver & Boyd, Edinburgh.*	Book
	interpreting the geology of the largest continental mass in existence. In Siberia, in particular, substantial...the geosyncline becomes a part of the continental mass. Erosion begins with the rise of the mountain chains...xenoliths—fragments of sedimentary rocks included in the intrusive mass—is no less important. Most frequently it is possible...Platform there are widely distributed Siberian Traps—fissure eruptions of Triassic and partly Permian age. They...seas should be considered as a part of the land mass, which has been temporarily lowered below the sea-level

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Calcite from Mass Fissure, Ahmeek Mine, Ahmeek, Allouez Township, Keweenaw County, Michigan, USA

Calcite from
Mass Fissure, Ahmeek Mine, Ahmeek, Allouez Township, Keweenaw County, Michigan, USA