Project Summary

 

Location:

    

Mamainse Harbour, Algoma, ON

  • 90 km North of Sault Ste. Marie

  • Batchawana Bay Area

  • Eastern Shore of Lake Superior

Size:  

Approximately 158 Km2

Access:   Trans-Canada Hwy. 17
Stage   Early Exploration (NI-43 101)
   

claims geology showings


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Detailed Bedrock Map
(OGS, 1969)


Cross Section of Lake Superior
(DeGeoffroy, 1965)


Conceptual Exploration Model

Large Magnetic Features of the Midcontinent Rift

 

mcr

 

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      The Superior Project on Mamainse Point is situated in the world class metal district of the Lake Superior Mid Continental Rift system. The property has been long recognized for its geological similarities to the Keewenaw Peninsula, Michigan, which has produced over 15 billion pounds of copper, a metal value comparable to the entire Timmins Gold Camp. Previous exploration efforts on the Superior Property has focused on Keewenaw-type copper stratiform deposits, extensions of the past-producing Coppercorp Mine, additional copper-breccia deposits like the past producing Tribag Mine and copper porphyry deposits similar to the Jogran Porphyry. 

 

In the last 15 years Mamainse Point has been recognized for its potential to host an iron-oxide-copper-gold (IOCG) type deposit. The cratonic rift setting, lithological age, mineralogy, alteration and geophysical signatures of IOCG deposits of southeast Australia (Olympic Dam, Ernest Henry, Prominent Hill) and those of the Carajas District in Brazil are prevalent on the Superior Property. Of significance on the Superior Property is a large 5 x 5 km regional magnetic high with coincident gravity anomalies. This same geophysical correlation has led to many of the discoveries for IOCG deposits around the world. Drilling to date however on the Coppercorp Property for these types of deposits has been minimal (2 holes) and shallow (<225m vertical) and no drilling has explained the magnetic or gravity highs. The Olympic Dam deposit, which has hosted 9 billion tonnes of 1.6% Cu, 0.6 kg/t U-oxide, 0.6 g/t Au and 6 g/t Ag, was discovered 335m below flat lying sediments after targeting a coincident magnetic-gravity high anomaly. Superior Coppers exploration model will focus on an IOCG-type deposit with an aggressive drill program beginning in June 2014.        geophysics
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Beyond the Proterozoic-Archean unconformity, the property has been recognized for its potential to host ultramafic Ni-Cu-PGE type deposits. This exploration model is based on deposits found around the edges of the Lake Superior Mid Continental Rift. Model types include the Eagle Mine in Michigan (5.3mt 3.1%Ni and 2.5% Cu), the Tamarack discovery in Minnesota (9mt 1%Ni and 0.7%Cu), the Marathon Coldwell Complex in Ontario (91mt wth 2.4 million oz Pd, 696,000 oz Pt, 251,000 oz Au, 497 million lbs Cu and 4.2 million oz Ag) and more recently the PGE discovery by Transition Metals north of Thunder Bay. Typically these deposits are characterized by circular magnetic highs that may represent pipe-like conduits that host mineralized magma deposited during intracontinental rifting events. A number of these similar magnetic features have been identified on the Superior Copper claim group from historical geophysical data but have failed to be recognized as a potential target by previous companies. Mapping, sampling and drilling will be conducted for these types of deposits during the summer of 2014.

Presentation