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Pandora Property
Overview |
Background |
History |
Geology and Mineralization
| Historic Mineral Resources
| 2003-04 Drilling Program
| 2011 Program
Project Overview
| Ownership |
100% |
| Past Production |
8,000 oz from 2 deposits (64,212 t @ 3.9 g/t) |
|
Deposit Type |
Structurally controlled quartz vein + disseminated |
|
NI 43-101 Resource |
None |
| Location |
Adjacent to operating Lapa gold mine |
| Status |
On hold, monitoring developments in camp |
Background
The Pandora project is located in Cadillac Township, Quebec within the Bousquet-Cadillac gold camp, approximately 58 km east of Rouyn-Noranda and 470 km northwest of Montreal. The property consists of 18 mineral claims. The Company owns a 100% interest in the property and there is sufficient work credits applied to hold the unpatented claims for a period of 20 years. Barrick Gold Corporation, a previous joint venture partner on the project, holds a 0.5% NSR.
The project hosts two gold deposits located on the eastern portion of the property (the North and South Branch Zones) and one other gold zone (C Zone) located on the western portion of the property. Two shafts are located on the property, with limited underground workings and production.
Provincial highway 117 crosses the property in an east-west direction, while secondary gravel and sand trails lead north and south. Physical access to the project is excellent year round. Local mining resources are excellent, with locally available power, water and a skilled labour force present in the immediate area. Custom milling at various locations in Rouyn-Noranda, Cadillac and Val d’Or are options that are available.
Brief
History
Canadian Pandora GML sank the No. 2 shaft on the eastern portion of the
property to a depth of 152 m in 1931 and carried out minimal lateral
development. This work explored two vein systems near a porphyry plug and
27,248 t grading 6.1 g/t were mined and processed at the Amm mill in 1937.
The Pandora property was acquired by Belleroche Mines, an affiliate of Upper
Canada Resources in 1958. In 1977, Queenston GML merged with Upper Canada
Resources and took effective control of the property.
Between 1987-90, American Barrick completed 106 surface drill holes testing
the Cadillac break on the eastern portion of the property. This work led to
the discovery of the C Zone and the Branch Zones. In 1990 Barrick extracted
a 36,189 t bulk sample from the North Branch Zone that was processed at the
Camflo mill. In 1992, Queenston purchased Barrick’s interest in the Pandora
and between 1993-94 optioned the property to Santa Fe Canadian Mining Ltd.
Santa Fe drilled 17 holes (10,626 m) on the Branch and C Zone before
terminating the option.
In 2003-04 Queenston completed a 21 hole, diamond drill program on the
property targeting the Piche Group volcanics along the Cadillac Break.
Property Geology and Mineralization
The northern half of the Pandora property is underlain by greywackes,
mudstones and banded iron formation of the Cadillac Group. The sediments are
arranged as a series of upright, tight isoclinal folds. The Cadillac
sediments dip steeply to the south. The southern portion of the property is
underlain by Pontiac Group sediments, generally greywacke and occasionally
mudstone. The primary difference between the Cadillac and Pontiac sediments
is the higher degree of metamorphism displayed in the Pontiac Group. The two
sedimentary groups are separated by a narrow band (50 – 200 m) of talc
schist and mafic volcanic rocks of the Piche Group that strike east-west and
dip steeply to the south. The Cadillac Break occupies the Piche Group
creating deformation in the volcanic rocks that occasionally is evident in
the adjacent sediments.
There are two known intrusive (syenite) bodies on the property. These
relatively small plugs may be satellite bodies off a much larger intrusive
stock to the south. The provincial government geologic compilation shows two
25 m and 50 m wide diabase dykes trending across the property in a northeast
– southwest direction.
Gold mineralization in the camp is associated to the Cadillac Break. For the
most part, the timing of the bulk of the gold mineralization is late in the
cycle of a hydrothermal event or events. This is evident by the occurrence
of free gold emplaced on late fractures in quartz veins. On the Pandora
property there are three areas that contain gold mineralization the C Zone,
the No. 2 Shaft Zone and the Branch Zones. Total past production from the
property amounts to approximately 8,000 oz. from 64,212 t averaging 3.9 g/t.
The C Zone is located in the eastern half of the claim group at and within
the north boundary of the Cadillac Break. It is recognized as a broad zone
of gold bearing pyrite and arsenopyrite mineralization developed in altered
greywackes, volcanics and talc-chlorite schists. One of the better gold
intersections from a 1980 diamond drill program completed by Camflo ML was
3.1 g/t over 78.7 m in hole CF 80-47. The zone was discovered by Camflo
Mines in 1980 who drilled 22 holes outlining a non compliant NI 43-101
resource of 131,400 tons grading 4.6 g/t Au. In 1987, Barrick reviewed the
data and reported that the zone had the potential to contain an open pit
resource of 2 million tonnes grading 2.4 g/t Au. In 2004 Queenston completed
one hole below the C Zone intersecting a 53.7 m wide interval assaying 0.6
g/t gold.
The No. 2 Shaft Zone occurs in the vicinity of a porphyry plug intruding
sediments and mafic volcanics within the Cadillac Break. Here gold occurs in
narrow, vertical quartz veins at the porphyry-sediment contact. The zone was
developed by a shaft sunk to 152 m and four levels. The workings intersected
two veins the #5 and Bell from which 27,243 t were mined grading 6.5 g/t
(5,700 oz).In 1994, Santa Fe Canadian Mining tested the zone with drilling
and intersected the #6 vein returning 9.9 g/t over 1.2 m in hole P94-141 and
7.3 g/t over 4.4 m in hole P94-143.
The Branch Zones are located in the far eastern part of the property and
were discovered in 1987 by Barrick who drilled 128 holes for a total of
32,041 m. The North Branch hosts four gold zones that occur along the nose
(keel), north limb/ wing and south limb/ wing of a west plunging (50o)
synform along with a zone (Sleeper/ North Branch Ultramafic Zone) that
follows a narrow band of ultramafics (talc chlorite schist) forming the
footwall contact of the Cadillac Break. These have been partly renamed the
Keel Contact and Central Contact zones following the drill campaigns by
Queenston in 2003- 04. The style of mineralization at the North Branch
consists of biotitic volcanics, sediments or ultramafics that are
mineralized with varying amounts of arsenopyrite, pyrite, pyrrhotite and
chalcopyrite along with minor local visible gold. In 1990, American Barrick
calculated a resource for the North Branch zones amounted to 1,201,343
tonnes at 3.84 g/t over true widths of 8.5 m for the North Branch Zones and
160,140 tons at 5.5 g/t over 3.5 m for the Sleeper Zone. These resources are
considered historic and are not NI 43-101 compliant. In 1990 American
Barrick extracted a 36,962 tonne bulk sample from the Keel Zone with a
recovered grade of 2.2 g/t producing 2,600 ounces of gold.
The South Branch contains three gold zones in the southern
talc-chlorite-schist unit of the Cadillac Break, the two most important
being the A and B Zones, which consist of quartz veins with arsenopyrite,
pyrite and pyrrhotite [minor stibnite and visible gold] and, the Contact
Zone, consisting of a more discontinuous quartz vein zone along the northern
ultramafic/ greywacke contact. In 1990 American Barrick reported an inferred
resource (not NI 43-101 compliant) of 837,340 tonnes grading 5.2 g/t Au for
the South Branch (A & B) Zones. Following the 2003-04 drill program
Queenston compares the A and B South Branch Zones to the Lapa South Contact
and Lapa Contact zones respectively.
Historic Mineral Resources
The mineral resources on the Pandora property were calculated by Camflo
Mines and American Barrick and are considered historic as they were
calculated prior to NI 43-101 standards. They should not be relied upon as
they have not been verified by a Qualified Person.
| Branch Zones |
Tonnes |
Grade
(g/t) |
Ounces |
| North Branch Zones |
1,201,343 |
3.8 |
146,740 |
| Sleeper Zone |
160,140 |
5.5 |
28,300 |
| South Branch Zones |
837,340 |
5.2 |
139,960 |
| |
2,198,823 |
4.5 |
315,000 |
| C Zone |
131,400 |
4.6 |
19,000 |
| Total |
2,327,505 |
4.5 |
334,000 |
Lapa Gold Discovery
The South Branch Zone located on the eastern portion of the Pandora property
extends eastward where it continues onto the Lapa property to form the
Tonawanda Zone. Work on this zone by Breakwater Resources between 1981- 1989
outlined a mineral inventory of 1,686,000 t grading 6.4 g/t gold.
In 2002, the Lapa property was optioned by Agnico-Eagle Mines Limited and
two phases of diamond drilling were completed near the western margin of
their property. This drilling followed up previous Breakwater and Cambior
results and continued to intersect a new gold bearing horizon referred to as
the Contact Zone. After further phases of drilling, in October 2003,
Agnico-Eagle reported an indicated resource of 2,232,300 t averaging 9.9 g/t
(cut) and an inferred resource of 1,705,800 t averaging 8.6 g/t (cut). This
1.2 million ounce (1.7 million ounces uncut) resource lies in a body
referred to as the Lapa deposit measuring 500 m long between 300 and 1,300 m
below surface. The deposit remains open to the west, east and at depth and
the western margin lies 100 m from the Pandora property boundary.
Interpretation by Queenston geologists suggest that these zones strike and
plunge westward onto the Pandora property at a vertical depth of 950 m. On
the Contact Zone the most significant results were recorded at depth where
three holes, 118-03-35B, 118-03-35D and 118-03-35E intersected 11.7 g/t over
3.6 m, 4.0 g/t over 11.3 m and 14.0 g/t over 4.0 m respectively. These
intersections lie 270 m east of the Pandora property at an elevation of
-1,067 m. Agnico-Eagle indicates that the Contact Zone remains open and
displays greater thicknesses reaching 7.6 to 11.2 m at depth and to the
west.
In 2005, Agnico-Eagle commenced a US$30 million shaft sinking program to
explore and evaluate the deposit. The shaft is planned to -1300 m and
reached target in the third quarter 2006. At that time a bulk sample was
extracted for metallurgical test-work. In the fourth quarter of 2006
Agnico-Eagle announced reserves of 3.45 Mt grading 10.2 g/t Au, indicated
resources of 1.1 Mt grading 5.9 g/t Au and inferred resources of 1.4 Mt
grading 9.4 g/t. Au. And also announced a US$90 million expenditure to
advance the Lapa to production by 2008. At Lapa Agnico-Eagle are projecting
annual production of 125,000 oz. at a cash cost of US$518/oz.
2003-04 Drilling Program
During 2003 and 2004, Queenston completed a 21 hole, (15,608 m) diamond
drill program on the eastern portion of the Pandora property to explore for
the same horizon that hosts the Lapa deposit. The drilling outlined three
areas of Lapa type mineralization on the property referred to as the Lapa,
Keel and Central Zones.
The Lapa Zone is interpreted to represent the western projection of
Agnico-Eagle’s Lapa deposit onto the Pandora property. Queenston holes
PD-03-01,-03,-03a, PD-04-16,-16a intersected the zone returning best values
of 12.3 g/t Au over 1.7 m and 8.4 g/t Au over 1.8 m in holes PD-03-01 and
-03 respectively. The Lapa Zone occurs near the footwall of the Piche
volcanics adjacent to the Cadillac Sediments. The mineralization is
characterized by altered mafic and ultramafic volcanic rocks containing
quartz-carbonate vein zones with arsenopyrite, pyrite, pyrrhotite, stibnite
and visible gold.
The Keel Zone occurs in a complexly folded portion of the contact horizon
closer to surface and 700 m west of the property boundary. This zone plunges
steeply west where holes PD-03-06,-09, -12 and -14 have intersected
impressive values including 3.8 g/t Au over 6.4 m, 7.7 g/t Au over 0.5 m,
7.1 g/t Au over 3.6 m and 3.9 g/t Au over 5.1 m respectively. At the Central
Zone, located 1.5 km west of the property boundary, five drill holes
PD-03-10,-13,-15, PD-04-17 all intersected the zone type with a best
intersection in PD-03-13 assaying 3.1 g/t Au over a true width of 12.2 m
including 7.6 g/t Au over 3.5 m at 400 m below surface.
The drilling at Pandora confirmed the presence of similar gold
mineralization that occurs on Agnico-Eagle’s adjacent Lapa property. The
deep drilling program experienced drill hole deviation and incurred
additional costs in an attempt to keep the holes on target. Queenston is
confident that the Lapa-style mineralization intersected in the 2003-04
drilling provides evidence that ore-quality material occurs at Pandora.
2011 Program
Since 2004 no exploration was completed on the Pandora property. The shaft
and underground program initiated by Agnico-Eagle at Lapa resulted in a
production decision in 2009. This operating mine within 250 m of our common
property boundary will provide a deep platform to support continued
exploration at Pandora. Prior to planning further exploration in 2011 the
Company will monitor results of activity at the Lapa mine. |
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