TSX:TLO
ROAD TOWN, Tortola, British Virgin
Islands, April 11, 2012
/PRNewswire/ - Talon Metals Corp. ("Talon" or the "Company") (TSX:
TLO) is pleased to announce positive results from the drilling at
its 100% owned Inajá South Iron Project ("Inajá South") in Pará
State, Brazil. Inajá South is
located approximately 140 kilometres south of Talon's Trairão Iron
Project.
During the fourth quarter of 2011, Talon
conducted a reverse circulation ("RC") drilling program at Inajá
South, with the principal aim to evaluate the iron potential of the
magnetite-rich banded iron formations ("BIFs") in the Serra do
Inajá greenstone belt. The program comprised 29 RC drill holes
(1,910 linear metres). The drill holes were drilled at an
inclination of -60 degrees into the BIF units, which have steep
near vertical dips. The holes were drilled between 30 metres and 80
metres apart on eight section lines which were spaced between 900
metres and 1,300 metres apart, covering a total strike length of
the BIF units of approximately 7,750 metres. The drilling depth of
the holes varied between 21 metres and 152 metres.
The complete table of drilling results is
appended to this news release (Table 1). Highlighted intersections
include:
HOLE_ID |
DEPTH
(m) |
FROM
(m) |
TO
(m) |
APPARENT
WIDTH (m) |
GRADE
(% Fe)** |
|
IRC-0001 |
80.00 |
0.00 |
79.00 |
79.00 |
36.01 |
IRC-0002 |
80.00 |
0.00 |
73.00 |
73.00 |
34.27 |
IRC-0004 |
66.00 |
0.00 |
58.00 |
58.00 |
30.09 |
IRC-0009 |
72.00 |
0.00 |
42.00 |
42.00 |
33.36 |
IRC-0010 |
80.00 |
0.00 |
80.00 |
80.00# |
33.75 |
IRC-0016 |
82.00 |
0.00 |
82.00 |
82.00# |
33.52 |
IRC-0020 |
48.00 |
0.00 |
48.00 |
48.00# |
34.27 |
IRC-0021 |
39.00 |
0.00 |
39.00 |
39.00# |
34.62 |
IRC-0025 |
102.00 |
34.00 |
87.00 |
53.00 |
31.10 |
IRC-0030 |
67.00 |
0.00 |
67.00 |
67.00# |
33.67 |
Notes:
(**) Fe grade are uncut
(#) Mineralization open at
depth
All drill holes are inclined at -60 degrees dip |
"The drilling and metallurgical test results of
this first phase exploration program indicate that the iron
mineralization could be amenable to producing a high quality pellet
feed product at Inajá South using simple, cost effective flotation
that shows a good level of recoveries," said Mr. Henri van Rooyen, CEO of Talon. "While Talon's
focus is its Trairão iron project, the quality of the
mineralization and location of Inajá South lends itself to
establishing a joint venture with parties in the area".
Prior to the RC drilling program, Talon
conducted geological mapping, supported by the interpretation of
remote photogeological imagery and a previously flown regional
airborne geophysical survey. The mapping phase was followed by rock
sampling and the excavation of three trenches (1,016 linear
metres). The data obtained from this work and the drilling data
indicate that the there are up to three BIF units, of which the
central unit is the widest and most attractive target with an
approximate true thickness varying between 33 metres and 112
metres. The BIF units are developed within a succession of
metamorphosed acid and mafic to ultramafic volcanic rocks. The BIF
units have a total length of nine kilometres striking
northeast-southwest, with steep near-vertical dips. The BIFs are
the causative source of one of the more prominent aeromagnetic
anomalies within the Serra do Inajá greenstone belt, which is a
relatively new target area for iron exploration. The intersections
on the drilling sections confirm that the mineralization includes
hematite in the poorly developed weathered environment which
extends to depths of between 2 and 21 metres. Underlying the
weathered rock, unaltered magnetite bearing fresh BIF is developed.
The metallurgical testwork reported below indicates that this iron
mineralization could be amenable to the production of pellet feed
material.
The RC drilling results indicate that the iron
mineralization in the BIF is open at depth in all of the eight
geological sections drilled and is also open laterally to the
extremities of the nine kilometres of strike, within Talon's
licence area.
The rights to the surrounding greenstone belt
areas, with further BIFs, are held by VALE S.A.
Inajá South Initial Metallurgical
Results
Talon also announces today its preliminary metallurgical results at
Inajá South on two samples IN-01 and IN-02. The mineralogical and
metallurgical test work was conducted at Processamento e
Caracterização Mineral Ltda ("PCM") under the direction of Ricardo
Álvares de Campos Cordeiro of Talon,
and Mr. Ronaldo Horta, independent
consultant. PCM is independent of Talon and services the iron ore
industry in Brazil. The aim of the
preliminary metallurgical test work has been to establish processes
that could be applied to the production of a high grade iron
concentrate amenable for the pellet feed market.
The semi-quantitative petrographic analysis
indicated that sample IN-01 was collected on Trench 1, close to the
surface (approx. 1.5m depth) and consists of magnetite (40.5%),
quartz (37.7%), hematite (14.9%), goethite (6.5%), with smaller
proportions of phyllosilicates (0.4%). The sample IN-02 was
collected on Trench 2 (also approx. 1.5m depth) and consists of
quartz (45.4%), magnetite (27.6%), hematite (20.5%), goethite
(6.3%), with smaller proportions of phyllosilicates (0.2%).
The initial metallurgical test work undertaken
is based on a flotation process, after desliming in cyclones, in
which various grinding procedures were applied over a range of
particle sizes. The results of the testwork undertaken on samples
IN-01 and IN-02 are shown in the tables below.
Summary - Flotation IN-01
Flux |
%
Mass
Yield |
%
Fe
Metallurgical
Recovery |
% Chemical Analysis |
Fe |
SiO2 |
Al2O3 |
P |
Mn |
LOI |
FeO |
MgO |
Feed - ROM |
100.00 |
100.00 |
42.95 |
37.66 |
0.97 |
0.05 |
0.32 |
1.12 |
5.61 |
0.04 |
Pellet Feed (95% |