Red Jacket shaft, Calumet & Hecla Mine, Calumet, Calumet Township, Houghton Co., Michigan, USA
|Latitude & Longitude (WGS84):||47° 15' 11'' North , 88° 27' 41'' West|
|Latitude & Longitude (decimal):||47.2530555556, -88.4613888889|
The Red Jacket shaft was begun in 1889 by Calumet & Hecla as a means of access to the lowest levels of the mine on the north end of the district. The shaft itself is located just northwest of the village of Calumet. No mine piles are present, but by searching around the cement cap one can find copper and rarely powellite.
|Stenian1000 - 1200 Ma||Portage Lake Volcanics|
This unit is the same as unit Yp on paper map of Sims (1992). Description is taken from that unit description.
|Mesoproterozoic1000 - 1600 Ma||Mesoproterozoic volcanic: mafic rocks|
Volcanic: mafic rocks
|Mesoproterozoic1000 - 1600 Ma||Mesoproterozoic mixed volcanic, volcaniclastic and sedimentary rocks|
Mixed volcanic, volcaniclastic and sedimentary rocks
This designation includes Precambrian iron-formation-bearing sedimentary and volcanic sequences, as well as mixed sedimentary and volcanic or volcaniclastic sequences.
References for regional geology:
Data provided by Macrostrat.org
Garrity, C.P., and Soller, D.R.,. Database of the Geologic Map of North America: adapted from the map by J.C. Reed, Jr. and others (2005). U.S. Geological Survey Data Series 424 .
USGS compilers. State geologic map data. State Maps.
Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.
7 valid minerals.