Mine detail: Datolite Mine

Previously called ''

<< Back to the map

Location

Lat / long:

47.98333, -88.76673

Resource(M)

Primary:	Copper
Ore:	Copper
Orebody form:	FISSURE

Production

Operation type:	Surface
Production size:	Small
Development status:	Past Producer
Production years:	1846-1848 AT LEAST (BUT PROBABLY NOT MUCH LONGER)
First production started:	1846
Last production ended:	1848

Geology

Host rock:	Portage Lake Volcanics
Host type:	Basalt
Structure:	Fissures cross-cutting basalt

References

MRDS	W060085
DEP	10082647
Reference	{Deposit:: LANE, A.C., 1898, UPPER PENINSULA, ISLE ROYALE: GEOLOGICAL SURVEY OF MICHIGAN, V. 6. PT. 1, 281 PP.}{Deposit:: HUBER, N.K., 1973, GEOLOGIC MAP OF ISLE ROYALE NATIONAL PARK, KEWEENAW COUNTY, MICHIGAN: USGS MISC. GEOL. INVEST., MAP I-796, SCALE 1:62500}
Reporter	Nicholson, Suzanne, Sutphin, D.M., Mason Jr., G.T.