Source: Mineral Occurrence Database - Geological Survey, Department of Natural Resources Website:http://www.gov.nl.ca/mines&en/geosurvey P.H. Davenport, L.W. Nolan, R.W. Wardle, G.J. Stapleton, and G.J. Kilfoil, 1999 The Geoscience Atlas of Labrador. Newfoundland Department of Mines and Energy, Geological Survey, Open File NFLD/1305, Version 1.0 Map 1. Property location map LABRADOR Superior Province Grenville Province Makkovik Province Nain Province Churchill Province 0 300 km Labrador City Happy Valley/ Goose Bay Port Hope Simpson ISA LAKE ISA LAKE PROPERTY PROPERTY ISA LAKE PROPERTY The Isa Lake Property is located approximately 100 km northeast of Labrador City and 20 km north of the Trans Labrador Highway (NTS 23 H/12) (Maps 1 and 2). Access to the area can be by float plane or helicopter. Regional Geology The Isa Lake Graphite discovery lies within the Gabbro Lake area, located on the southeastern edge of the Labrador Trough, bordering the contact between the Gagnon and Molson Lake terranes (Figure 1). The Gagnon Terrane is a parautochthonous fold and thrust belt, bound to the north by the Grenville Front (northern limit of deformation associated with the Grenville Orogeny) and to the south by the Molson Lake Terrane. The parautochthonous Molson Lake Terrane structurally overlies the Gagnon Terrane and the Churchill Falls Terrane (Figure 2). It forms a narrow belt located immediately north of the Lac Joseph Terrane. The Molson Lake Terrane contains almost no supracrustal rocks and is dominated by granitoid gneisses, dated at ca. 1640 Ma (Connelly et al., 1995), considered to be metamorphosed equivalents of the Trans- Labrador batholith, The Mid Proterozoic 1.4 Ga Shabogamo Gabbro occurs as sills, dikes, laccoliths and stocks (up to ~50 x 10 km) believed to be part of a regional mafic magmatic event extending for ~500 km, which includes the Michael Gabbro and possibly the Mealy Lake dikes (Gower et al, 1990). The Grenville Front dominates the geology of the region. It is a probable crustal suture that forms part of the major Circum Superior terrane boundary. Local Geology The property is underlain by the McKay River and Attikamagen formations, Knob Lake Group (Wardle, 1985). The Attikamagen Formation consists of undifferentiated quartzofeldspathic schist (locally migmatitic), metagreywacke-siltstone and slate and phyllite. The McKay River Formation comprises undifferentiated metatuffaceous sediments and conglomerate, schist, carbonate, amphibolite Mineralization Little previous work has been carried out in the area. Gallery Resources worked as the operator for an option in the early 2000’s with BHP Billiton exploring for magmatic Ni-Cu-Co mineralization, particularly in the Shabogamo Gabbro (French and Mugford, 2006). The present owners have made a new discovery of coarse grained graphite with grabs returning up 15.65% graphite (Plate 1). Although detailed mapping is not available for this area, examination of the 100,000 regional mapping (Wardle, 1985) indicates that the area is probably underlain by rocks of the McKay Formation. The high grade metamorphic character of the host rocks and regional (potential) economic graphite occurrences suggest that the new Isa Lake showing has significant economic potential for coarse-grained graphite. Isa Lake Graphite RESOURCE ROOM PROSPECTORS January, 2019 NEWFOUNDLAND & LABRADOR i sco v e r D t D c e e v p e s lo o r p P Highlights: New Graphite Discovery Grabs up to 15.6% Coarse graphite Hosted by high grade supracrustals Map 2: Claims Location and Geology Sample 2: 6.24% Graphite Sample 1: 15.65% Graphite Graphite Outcrop Plate 1. Isa Lake Graphite ^ _ ^ _ 6.24% Gr 15.65% Gr ² 0 0.5 1 Km Alkalic Basalt, Mafic Pyroclastics Knob Lake Group McKay River/Attikamagen formations Granite/Monzonite/ Granodiorite/Syenite 25279M 25736M Gagnon Terrane Molson Lake Terrane Lac Joseph Terrane Isa Lake Property Northern Limit - Grenville Front Figure 1: Regional Terranes FOR MORE INFORMATION CONTACT: Peter Rogers Tel: 709-280-1165 E-mail: [email protected] or Wayde Guinchard Tel: (709) 364-3764 E-Mail: [email protected]
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Source: Mineral Occurrence Database - Geological Survey,Department of Natural ResourcesWebsite:http://www.gov.nl.ca/mines&en/geosurvey
P.H. Davenport, L.W. Nolan, R.W. Wardle, G.J. Stapleton, and G.J. Kilfoil, 1999 The Geoscience Atlas of Labrador.Newfoundland Department of Mines and Energy, Geological Survey, Open File NFLD/1305, Version 1.0
Map 1. Property location map
LABRADOR
SuperiorProvince
GrenvilleProvince
MakkovikProvince
NainProvince
Churchill Province
0 300
km
LabradorCity
Happy Valley/Goose Bay
Port HopeSimpson
ISA LAKEISA LAKEPROPERTYPROPERTYISA LAKE
PROPERTY
The Isa Lake Property is located approximately 100 km northeast of Labrador City and 20 km north of the Trans Labrador Highway (NTS 23 H/12) (Maps 1 and 2). Access to the area can be by float plane or helicopter.
Regional GeologyThe Isa Lake Graphite discovery lies within the Gabbro Lake area, located on the southeastern edge of the Labrador Trough, bordering the contact between the Gagnon and Molson Lake terranes (Figure 1). The Gagnon Terrane is a parautochthonous fold and thrust belt, bound to the north by the Grenville Front (northern limit of deformation associated with the Grenville Orogeny) and to the south by the Molson Lake Terrane. The parautochthonous Molson Lake Terrane structurally overlies the Gagnon Terrane and the Churchill Falls Terrane (Figure 2). It forms a narrow belt located immediately north of the Lac Joseph Terrane. The Molson Lake Terrane contains almost no supracrustal rocks and is dominated by granitoid gneisses, dated at ca. 1640 Ma (Connelly et al., 1995), considered to be metamorphosed equivalents of the Trans-Labrador batholith, The Mid Proterozoic 1.4 Ga Shabogamo Gabbro occurs as sills, dikes, laccoliths and stocks (up to ~50 x 10 km) believed to be part of a regional mafic magmatic event extending for ~500 km, which includes the Michael Gabbro and
possibly the Mealy Lake dikes (Gower et al, 1990). The Grenville Front dominates the geology of the region. It is a probable crustal suture that forms part of the major Circum
Superior terrane boundary.
Local GeologyThe property is underlain by the McKay River and Attikamagen formations, Knob Lake Group (Wardle, 1985). The Attikamagen Formation consists of undifferentiated quartzofeldspathic schist (locally migmatitic), metagreywacke-siltstone and slate and phyllite. The McKay River Formation comprises undifferentiated metatuffaceous sediments and conglomerate, schist, carbonate, amphibolite
MineralizationLittle previous work has been carried out in the area. Gallery Resources worked as the operator for an option in the early 2000’s with BHP Billiton exploring for magmatic Ni-Cu-Co mineralization, particularly in the Shabogamo Gabbro (French and Mugford, 2006).The present owners have made a new discovery of coarse grained graphite with grabs returning up 15.65% graphite (Plate 1). Although detailed mapping is not available for this area, examination of the 100,000 regional mapping (Wardle, 1985) indicates that the area is probably underlain by rocks of the McKay Formation. The high grade metamorphic character of the host rocks and regional (potential) economic graphite occurrences suggest that the new Isa Lake showing has significant economic potential for coarse-grained graphite.
Isa Lake GraphiteRESOURCE ROOMPROSPECTORS
January, 2019
NEWFOUNDLAND & LABRADORiscover D t Dc ee vp es loor pP
Highlights:New Graphite DiscoveryGrabs up to 15.6% Coarse graphiteHosted by high grade supracrustals
Map 2: Claims Location and Geology
Sample 2: 6.24% Graphite
Sample 1: 15.65% Graphite
Graphite Outcrop
Plate 1. Isa Lake Graphite
_̂̂_
6.24% Gr
15.65% Gr
²
0 0.5 1Km
Alkalic Basalt, Mafic Pyroclastics
Knob Lake Group
McKay River/Attik
amagen form
ations
Granite/Monzonite/
Granodiorite/Syenite
25279M
25736M
Gagnon Terrane
Molson Lake Terrane
Lac Joseph Terrane
Isa Lake Property
Northern Limit - Grenville Front
Figure 1: Regional Terranes
FOR MORE INFORMATION CONTACT:
Peter RogersTel: 709-280-1165
E-mail: [email protected] Wayde GuinchardTel: (709) 364-3764
E-Mail: [email protected]
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