Mine detail: Atlantic Mine

Previously called 'Tracts.AtlasLauraAnd Ryan'

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Location

Lat / long:

46.40306, -90.3079

Resource(M)

Primary:	Iron
Ore:	Goethite, Hematite
Orebody form:	STRATABOUND
Discovery year:	1848

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Production years:	1887 TO 1913 EXCEPT FOR 1888-1894, AND 1911.
First production started:	1887
Last production ended:	1913

Geology

Host rock:	Ironwood Formation
Host type:	Iron Formation
Structure:	N-Dipping Sediments; Regional Trends Are East To West., An E-W Linear Iron Formation Going From Gogebic, Mi, To Ironwood, Mi, And To Mellen, Wi, And A Bit Farther W.
Tectonic:	Canadian Shield
Alteration processes:	Gogebic Iron Range Is In The Chlorite Metamorphic Zone In The Least Metamorphosed Area Of The Upper Peninsula.

References

MRDS	W062002
DEP	10082654
Reference	{Deposit:: HEYL, A.V., JR., AGNEW, A.F., LYONS, E.J., AND BEHRE, C.H., JR., WITH SPECIAL SECTIONS BY FLINT, A.E., 1959, THE GEOLOGY OF THE UPPER MISSISSIPPI VALLEY ZINC-LEAD DISTRICT: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 309, 310 P}{Deposit:: SCHMIDT, 1980: USGS BULLETIN 1460}{Production:: LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, P. 53.}
Reporter	Sutphin, David M. (Cannon, W. F.), Mason Jr., G.T.