Fall-Winter Work on DIOS 33 Carats Gold
MONTREAL, QUEBEC--(Marketwired - Feb 28, 2014) - Prospecting,
geological mapping and soil sampling by helicopter over the last
two years by DIOS EXPLORATION (TSX-VENTURE:DOS) delineated a highly
prospective area for gold within a felsic intrusive, at the head of
a gold-in-till dispersal train on wholly-owned 33 CARATS project,
along road 167 north of the town of Chibougamau, Quebec, 40 km
south of the Renard diamond deposit and 6 km northwest of the
Eastmain Mine gold deposit (1.0 million tons grading 15.3 g/t Au,
15.1 g/t Ag and 0.27% Cu). DIOS' Bohier tonalite hosts numerous
porphyry-type gold-silver-copper-bismuth showings associated with a
magnetic low. The head of the gold glacial train points to the low
magnetic anomaly within the Bohier tonalite (a 3.5 by 1.5 km area).
First gold-bearing tonalite outcrops were discovered in summer
2012. The property is cut by the Eastmain River and hosts numerous
shallow lakes. It is poorly exposed, with large areas without
outcrops covered by swamps, muskegs and creeks. Typical
mineralization within tonalite consists of disseminated/stringer
pyrite-chalcopyrite associated with 1-5% biotite-magnetite and/or
quartz stringers/veinlets.
With recent road access this Fall, a first drill program was
undertaken to locate the source of some mineralized boulder trains
and to drill-test some surface showings within the Bohier tonalite
on dry ground accessible from the road. A total of nine exploratory
diamond drill holes totaling 1332 m were completed on 33 CARATS
SOUTH claims. The drill program specifically targeted weak to high
magnetic lineaments within the magnetic low. Drilling was divided
into two parts, with a two km area between the two remaining
untested due to lack of access, focusing first on the northern part
of the low magnetic anomaly within the tonalite, where 10 metric
intervals greater than 100 ppb Au were intersected in three
different holes: 13-01, 03 & 04. The best cut returned 1.14 g/t
Au, 2 g/t Ag & 0.12% Cu over 3.0 m (210.35-204.35 m) in hole
13-01. Wide zones of potassic (biotite- potassic feldspars) and
propylitic (epidote) alteration were intersected in holes 13-01
& 03. The second part of the drill program targeted the Shower
Cap area some two km to the south, located at the southern limit of
the low magnetic anomaly. Hole 13-07 was drilled directly
underneath the Shower Cap showing to a total depth of 111 m and
returned 3 intervals greater than 1.0 g/t Au: 1.38 g/t Au, 1.7 g/t
Ag & 0.15% Cu over 0.5 m (19.00-19.50 m), 1.09 g/t Au, 1.2 g/t
Ag & 0.13% Cu over 1.5 m (25.25-26.75 m) and 1.3 g/t Au over
1.0 m (100.00-101.00 m).
Best results from the drill program are as follows:
-1,14 g/t Au; 2,0 g/t
Ag; 0,124% Cu; 25 g/t Bi/ 3,0 meters (hole 13-01;
201,35-204,35m);
-0,322 g/tAu /7,75 m
(hole 07; 19,00-26,75 m) including 1,375 g/t Au; 1,7 g/t Ag; 0,15%
Cu/0,50m (19,00-19,50 m), 1,085 g/t Au; 0,87 g/t Ag; 0,09% Cu/1,50
m (25,25-26,75 m) and 1,295 g/t Au /1,00 meters
(100-101m).
-0,184 g/t Au /11
meters (hole 13-04; 91,50-102,50 m) including 0,97 g/t Au/ 1meter
(91,50-92,50 m) and 0,9 g/t Au / 1 meter (101,50-102,50
m).
They are all associated with biotitized-silicified-sulfurized
(cpy-py) tonalitic zones adjacent to feldspar-phyric intermediate
dykes.
Extensive porphyry-type alteration zones was observed within the
tonalite. Biotitization (potassic alteration) is particularly
well-developed and appears to be coincidental with a 2000 x 250
meter moderate magnetic (vertical gradient) lineament within the
non to weakly magnetic tonalite (3500 x 1500-2000 m). The magnetic
biotite-alteration consists of 10-30% disseminated (mm-cm) and/or
fractured-filling. Potassic-feldspar alteration,
hematitization-epidotization, and +/-carbonation (propylitic
alteration) zones are also present in the northern portion of the
weakly magnetic tonalite.
http://diosexplo.com/images/2013DDH.gif
Let us recall the Bohier tonalite hosts numerous showings
associated with porphyry-type mineralization in outcrops (up to
4.93 g/t Au, 6.8 g/t Ag & 0.477% Cu) and in metric boulders (up
to 7.76 g/t Au, 17.8 g/t Ag & 1.5%). A two km long area within
the heart of the magnetic low could not be drill tested this fall.
During the drill campaign, further prospecting & geological
mapping was also conducted in the vicinities of the drilling
sites.
About 100 m west of Shower Cap, a metric tonalite boulder
returned this year 7.63 g/t Au, 16.5 g/t Ag, 0.64% Cu & 72 g/t
Bi. Some 500 m west of Shower Cap, another similar mineralized
boulder (found in 2012) returned 6.11 g/t Au, 3.7 g/t Ag, 0.35% Cu.
Mineralization comprises disseminated traces-1% PY-CPY-MC
associated with 2% (mm up to 4 cm wide) quartz veins, hosted within
a moderately silicified non-magnetic tonalite. The presence of
these boulders indicates that a 500 x 500 m area located north of
Shower Cap between drill holes 13-07 & 13-08 remains highly
prospective. The whole area is non-outcropping and covered with
swamps.
About 100 m south of drill holes 13-01 & 02, a metric
boulder returned this year 5.62 g/t Au, 7,3g/t Ag, 1,48% Cu, 4g/t
Bi & 94 ppm Mo within a silicified tonalite. The source of this
boulder is under a swampy area that was not tested during the 2013
drill campaign because of the field conditions. Another metric
boulder located approximately 350 m south graded 7.33 g/t Au, 14.5
g/t Ag, 0.63% Cu & 74 g/t Bi. Mineralization consisting of
5-15% PY-PO and tr-1% CPY-MC occurs within a sheared, strongly
biotitized and magnetic zone located at the contact with a fine to
medium grained feldspar phyric intermediate intrusive (dyke?). The
source of this boulder remains unknown.
From 37 new rock samples, best results follow :
2013
Prospecting Assay Results
above 100 ppb Au
UTM x (Nad 27 18U) |
UTM y (Nad 27 18u) |
|
Rock type |
|
Au (ppm) |
Ag (ppm) |
Cu (%) |
Bi (ppm) |
Boulder |
692304 |
5803154 |
|
Tonalite |
|
7,63 |
16,5 |
0,76 |
19 |
Boulder |
691689 |
5805638 |
|
Tonalite |
|
5,62 |
7,3 |
1,48 |
4 |
Boulder |
692201 |
5801910 |
|
Tonalite |
|
1,68 |
10,5 |
0,73 |
7 |
Outcrop |
692484 |
5803170 |
|
Tonalite |
|
1,10 |
0,3 |
0,01 |
5 |
Outcrop |
692240 |
5802126 |
|
Tonalite |
|
0,70 |
0 |
0,00 |
6 |
Outcrop |
692698 |
5802611 |
|
Tonalite |
|
0,61 |
0,6 |
0,11 |
2 |
Outcrop |
692698 |
5802611 |
|
Tonalite |
|
0,54 |
0,6 |
0,11 |
5 |
Outcrop |
692698 |
5802611 |
|
Tonalite |
|
0,54 |
0,4 |
0,11 |
0 |
Outcrop |
692698 |
5802611 |
|
Tonalite |
|
0,47 |
0,9 |
0,19 |
2 |
Outcrop |
692698 |
5802611 |
|
Tonalite |
|
0,32 |
0,2 |
0,03 |
2 |
Outcrop |
692709 |
5802568 |
|
Granodiorite |
|
0,25 |
0,2 |
0,04 |
0 |
Outcrop |
692715 |
5802610 |
|
Tonalite |
|
0,22 |
1,4 |
0,02 |
0 |
|
|
|
|
|
|
|
|
|
|
|
|
See maps : |
http://diosexplo.com/images/Prospection20112013.gif |
|
|
|
http://diosexplo.com/images/33Carats2014Targets.jpg |
Future drilling top priority-targets include:
1-eastern contact between tonalite and granodiorite marked by a
N-S moderate magnetic lineament (gradient) located up-ice of
mineralized (5,62; 6,59 and 7,33 g/t Au) tonalite glacial boulders;
some weak humus gold anomalies (98,5 percentils) are present.
2-intersection of dioritic breccia (only observed as abundant
metric glacial boulders) with E-W magnetic lineament;
3-up-ice area of JD glacial float train (grading up to 3,18 g/t
Au) intersecting the same E-W magnetic lineament associated with
diorite breccia;
4-western N-S oriented contact between the main magnetic and
non-magnetic tonalite; numerous humus copper anomalies (98,5
percentil) are coincidental with the contact; including 131 000 ppb
Cu.
5-possible extent of the northern biotite-alteration zone and
its intersection with the magnetic tonalite (top priority target,
coincident with spectrometric potassic anomaly).
Future work includes completing a grid and geophysical
induced-polarization survey on the northern portion of the weakly
magnetic tonalite where holes 1 to 6 intersected more intense
alterations associated with disseminated sulphides
(pyrite-chalcopyrite) and magnetite. Coincidental i.p. (induced
polarization) conductors with magnetic lineaments will define
priority drill targets. The E-W magnetic lineament associated with
dioritic breccia and mineralized tonalitic floats also warrant
being test-drilled.
Whole rock
analysis and geological studies completed this winter
indicate the Bohier tonalite belongs to the high silica
leucotonalite suite (calk-alkaline) associated with a deformation
zone, alteration and mineralization. Major and trace elements
suggest geochemistry and geology (apart from thorium) similar to
that of the Mooshla pluton in Abitibi (which is spatially
associated with five gold deposits).
The length and
significant values of the gold glacial train leading to the
auriferous Bohier tonalite are comparable to the Au33 West
gold glacial dispersal train and another major gold train of the
James Bay area, such is suggested from internal and proprietary
data from DIOS. The geological team at DIOS is of the opinion that
the source of such a major long gold train with many values above 2
g/t gold and above 1 g/t gold in till (heavy mineral concentrates)
suggests a very significant gold source.
Usual industry standard quality control was implemented for
prospecting samples and core samples, generally 1 m long core
samples split in two sent to ALS CHEMEX for gold assaying (AA23).
This release was prepared by M.J. Girard, M.Sc. Geo, a 43-101 Q
P.
Neither the TSX Venture Exchange nor its Regulation Services
Provider (as that term is defined in the policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or
accuracy of this release.
Marie-Jose GirardPresident & CEOmjgirard@diosexplo.com(514)
923-9123www.diosexplo.com
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