Coppercorp Project

Project Summary

Basics 

 

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Location:

    

Mamainse Harbour, Algoma, ON

  • 90 km North of Sault Ste. Marie

  • Batchawana Bay Area

  • Eastern Shore of Lake Superior

Size: Approximately 65 Km2
Access: Trans-Canada Hwy. 17
Stage Exploration (NI-43 101)
 History

 

  • Property was off-limits to staking and exploration for 30 years (1972-2002)
    • Has not been explored using modern technology
    • Potential high grade resource may hvae been preserved
  • Historic Mining Camp
    • Includes the past-producing Coppercorp Mine (1965-1972), Tribag Mine (1965-1973) and the Mamainse Mine (1800's).
    • Many copper prospects in the area including the Richards Breccia, Jogran Porphyry, and Kincaid Breccia.

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Progress

 

 

Exploration Agreement
Renewed with Batchawana First Nation, January 2013

Exploration Permit
Requirement effective April 1, 2013

1000m Drilled
@ SB Zone, November 2011

900m Drilled

@ B Zone, July 2011

1000m Drilled
@ Kincaid Breccia, April 2012

Ground Geophysics
Gravity, Magnetics, and IP over Mag-High Center

 

  

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MMI Soil Geochemistry
772 MMI samples collected over the Geophysical Grid

Surface Mapping and Sampling
Detailed and reconnaissance scale
 

     

Additional Claims Staked
Contiguous to the south of the Coppercorp Mine Area

3D Model
Compilation of all historical and newly acquired data 
 

Geology

Geologic Setting

Mid-Continent Rift, Proterozoic (1.1 Ga)

Continental rifting destabilizes the surrounding crust allowing magma to intrude toward the surface. Vast amounts of magma can be extruded where the crust has split, flooding the area in lava that will form basalt as it cools.


  

 

 

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Rock Types
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1. Quartz-Carbonate Vein Breccia, Proterozoic (?.? Ga)
 
High grade copper mineralization is hosted in vein breccias that cut the Keweenaw Group.
 

2. Keweenaw Group, Proterozoic (1.1 Ga)
Flood basalt (mafic volcanic) interlayered with conglomerate (sedimentary) formed as a result of the continental rifting.


3. Unconformity
The Batchawana Greenstone Belt had existed for over 1.5 billion years, being subjected to different geologic processes (i.e. alteration, erosion, etc.) before rifting allowed the deposition of the Keweenaw Group.


4. Batchawana Greenstone Belt,
 Archean (2.7 Ga)
Metamorphic volcanic and sedmentary rocks formed at the spreading centers of an ancient ocean floor.  

 

 

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Mineralization
Vein Breccias - SB Zone, B Zone, C Zone, & Kincaid Breccia
High-grade copper minerals (i.e. chalcocite, bornite, chalcopyrite and native copper) are hosted in veins formed by the explosive injection of hydrothermal fluids that were likely transporting the metals as well. The source of the hydrothermal fluids is undetermined, but believed to be related to the Mag-High Centre.
  

bcp-chalcocite 

Massive Chalcocite (Grey) with Malachite Staining (Green)

Mineralized Felsite Dykes
Low grade, disseminated copper mineralization is presence within some of the felsite dykes that outcrop over the Mag-High Centre and to the southeast. A lot more inforamtion is needed to determine the nature of the felsite dykes, but they are believed to be related to the Mag-High Centre as well. 

 

Mag-High Anomaly

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A large magnetic anomaly has been detected at Mamainse Point by airborne surveys, the most recent survey flown by Fugro Airborne Surveys in 2003. The source of the anomaly is not well understood, but it is believed to be a magmatic intrusion related to the wide spread copper mineralization in the area.

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Ground Geophysics Survey Results
In the summer of 2012, Abitibi Geophysics to conducted a 42-line km ground geophysical survey collecting magnetic, gravity and induced polarization ("IP") data over a portion of the magnetic anomaly. Superior Copper's exploration team has prioritized drill targets based on Abitibi's recommendations that will be tested as part of the Company's next drilling campaign.

 

 

Geophysical Target

1.

Coincident Gravity and Magnetic Anomaly
2. IP Chargability Zone
3. IP Resistive-Chargability Zone
  

 

 

MMI Soil Geochemistry Survey Results
In addition to the geophysical survey, Superior Copper's exploration team collected 772 Mobile Metal Ion soil samples that were sent SGS Mineral Services for assaying. The Company's geologists processed the data and have selected priority drill targets for the next drilling campaign.

 

 

MMI Target

A.

SE Linear Copper Anomaly
B. Central Copper/Silver Anomaly
C. NW Copper/Silver Anomaly
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Iron-Oxide-Copper-Gold Potential

Falconbridge Ltd. identified Mamainse Point as a favorable environment for hosting an IOCG deposit in 2002. Drilling in this area has only tested to less than 150m depth where as Olympic Dam in Australia was discovered at 350m. For more information on Olympic Dam Click Here.


IOCG Characteristics of the Batchawana Copper Project
  • Geologic Setting
    Adjacent to a continental rift margin.
     
  • Alteration Styles
    Pervasive Hematization (secondary iron oxidation).
    Local sodic and potassic feldspar alteration. 

      

  • Geophysical Signature
    Large magnetic anomaly with semi-coincident gravity anomaly.
     
  • Wide Spread Mineralization
    Numerous copper prospects.
    Gold occurs at the Glen Rock Prospect
    Uranium reported to the north.  

SB Zone

The SB Zone is the south extension of the original Coppercorp Mine. High-grade copper mineralization, predominantly chalcocite, is hosted in 2-4 m wide vein breccias. This zone will remain a priority target for drilling to determine the ore continuity between current holes and to continue extending the known depth and strike length

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Basic Dimensions
  • Rough estimate of 3% Cu over 3m width
  • High-grade intercepts over 500m strike length
  • Significant intercepts to 215m depth
Potential Upside
  • Wider zones and higher grades at depth as in BCP-19-11
  • Splay veins as interpretted in BCP-24-11
  • Depth extension, significant intersections 25-50m below mine workings

Best Results To Date     

Hole No.    From       To       Width (m)       Cu (%)       Ag (g/t)   
BCP-19-11    193.7       198.5    4.8    7.27       144.5
* Click Hole No. BCP-21-11    169.3       172.3    3.0    3.97       65.2
to see Cross Section    212.2       215.4    3.2    3.18       70.5
BCP-24-11    82.2       84.6    2.4    0.75       5.23
   87.3       90.6    3.0    0.53       8.68
   123.9       125.8    1.9    2.88       5.38
   133.0       135.1    2.1    1.21       3.29

For all significant results see: 
"Cenit Intersects 3 Metres of 3.97% Copper and 65 g/t Silver", November 16, 2011 

 

Coppercorp Mine Area

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The Coppercorp Mine operated between 1965-1972 producing roughly 1 million tons of ore at mine recovered grade of 1.16% which is equal to 23.8 million pounds of copper. The mine shut down due to a decline in copper prices. Following closure, the property was alienated from mining and exploration for 30 years.

C Zone

This zone contains original mine workings. Superior Copper believes potential exists below the 3rd level to discover more resources. A deep diamond drill hole tested the target in 2011 but intersected a thick conglomerate unit where the structure pinches to narrow widths. 
Click Here for Cross Section

B Zone

This zone was trenched and sampled in 2010 from which assays returned up to 51.8% copper. Diamond Drilling in 2011 intersected high grade vein breccia but mineralization was discontinuous. Follow up drill will test the continuity of grade and width to the north where the structure may be buried.

 

Hole No.      Width           Cu %           Ag g/t     
BCP-1-11           5.58           1.97           20.85      
BCP-4-11      3.65           1.4           3.9     
   b zone thumb 

For full results see "Cenit Update on Coppercorp Project"

Kincaid Breccia

Reconnaissance mapping and surface sampling in 2011 led to the discovery of the Kincaid Breccia. Assays returned high grade surface samples, up to 17% copper which justified follow up drilling. 1000m were drilled in the winter of 2012 with significant but inconsistent results. Future exploration will target nearby showings, the down dip extension, and the strike extension to the north.

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Summary
  • 300 meters of known strike length to date
  • Well mineralized felsite vein breccia
    • Chalcocite, native copper, and chalcopyrite
  • Near surface location makes surface mining a possibility
  • Potential to extend zone to the North


Best Drill Results To Date      Hole No.      From          To           Width           Cu %           Ag g/t     
KB-01-11 19.5 22.3 2.8 1.36 3.7
Drill Hole Location Map KB-02-11 18.0 21.6 3.6 1.57 3.5
KB-02-11 26.6 29.0 2.4 2.82 5.6
Cross Section: Structural Model      KB-03-11 22.4 22.7 0.3 3.70 21.7
KB-03-11 25.6 30.2 4.6 0.32


* KB-04-11 had no significant mineralization (213-2780 ppm Cu)
**For all significant results see: "Superior Copper continues to Intersect Copper Mineralization in the Kincaid Breccia, Batchawana, Ontario"