VANCOUVER, BRITISH COLUMBIA--(Marketwire - Aug. 14, 2007) - Southern Arc Minerals Inc. (TSX Venture:SA) is pleased to announce that detailed geological mapping, geochemical sampling, scout drilling and newly completed studies by independent geophysical consultants, has defined 15 porphyry Cu-Au drill target areas within SA's Selodong Intrusive Complex (SIC). The Selodong Intrusive Complex covering an area of approximately 7 by 3 kilometres, is situated at the southern end of a 13 km long, northwest trending structural corridor of mineralization and alteration on SA's Lombok property.
Since April 2007, SA has completed four drill holes (SLD001 to SLD004) totaling 2,242.5 metres in the SIC area, with the fifth, SLD005 currently in progress. These holes have tested two of the 15 porphyry Cu-Au targets and all have intersected broad zones (363.5 to 442.2 metres) of significant Cu-Au mineralization. Within these intervals significant widths of high grade Cu-Au values were intersected and as such the SIC porphyry system would be classified in the "Gold-Rich" category of porphyry Cu mineralization. Details of holes drilled by SA in the SIC area are detailed in Table 1 below:
Table 1: Southern Arc SIC Drilling Intercepts
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UTM Coord.
--------------- Significant
Hole East North Elev. Azi. Incl. Depth Drill
-ing -ing (m) (deg) (deg) (m) Intersection
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SLD001 390950 9021167 130.9 045 deg- -65 deg- 476.0 442.2 m at 0.28%
rees rees Cu / 0.42 g/t Au
from 33.8 m
(incl. 105.0 m
at 0.60% Cu /
1.04 g/t Au
from 33.8 m)
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SLD002 391049 9021236 150.3 225 deg- -60 deg- 518.0 384.65 m at 0.30%
rees rees Cu / 0.40 g/t Au
from 18.1 m
(incl. 117.2 m
at 0.56% Cu /
0.80 g/t Au
from 118.7 m
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SLD003 390869 9021117 149.8 090 deg- -60 deg- 643.5 363.5 m at 0.30%
rees rees Cu / 0.51 g/t Au
from 33.3 m
(incl. 250.1 m
at 0.35% Cu /
0.64 g/t Au
from 33.3 m)
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SLD004 391158 9022027 78.3 220 deg- -65 deg- 605.0 407.25 m at 0.25%
rees rees Cu / 0.45 g/t Au
from 160.25 m
(incl. 192.25 m
at 0.36% Cu /
0.74 g/t Au
from 160.25 m)
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SLD005 391017 9021886 95.7 090 deg- -65 deg- Hole in
rees rees progress.
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Due to the strong spatial correlation of elevated Cu-Au grades and secondary magnetite alteration recognized in drill holes, SA has commissioned geophysical consultants GRS of Brisbane, Australia to undertake modeling of ground magnetic data from the SIC area. Preliminary images from 3D geological/geomagnetic models by GRS confirm the potential for significant depth and size of the 15 targets.
These 15 distinct porphyry Cu-Au drill targets are located over an aerial extent in excess of 20 square kilometers. They show coincident magnetic highs associated with secondary magnetite alteration, elevated surface Cu-Au-Mo geochemistry and associated intense fracturing and vein stockworks typical of porphyry Cu-Au deposits. Six of these targets were scout drilled by the previous operator Newmont and this drilling has confirmed the model. The remaining nine target areas have yet to be drill tested. Details of each of these drill targets are shown in Table 2, whilst locations are shown in Figure 1.
Based on the encouraging drilling results to date and the large number of porphyry Cu-Au drill targets as detailed in Table 2, Management intends to drill test each target to better understand the geometry, grade, and size potential with the objective of prioritizing the targets for future work.
Table 2: Selodong Intrusive Complex Porphyry Cu-Au Drill Targets
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Geophysics Mineralized
----------------- Drill
3D Mag IP Surface Geochemistry Intercepts
----------------- --------------------- Cu in %,
Anomaly Geology Mod High Mod High Soil Rock Cu Au Mo Au in g/t)
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Montong Magnetite X X X X X X X - 18 shallow
Botek altered drill holes
diorite + max. depth
quartz 155.5 m.
stockworks - 4 deep
centred on drill holes
N & NE (3 by SA)
structure. to max. depth
643.5 m.
- Intercepts
from 14 to
442.2 m, with
ranges of
0.21-0.6 Cu &
0.24-1.04 Au.
- Best
interval:
442.2 m @ 0.28
Cu & 0.42 Au
(incl. 105.0 m
@ 0.6 Cu &
1.04 Au)
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Blongas Magnetite X X X X X X X - 4 shallow
I (BI) altered drill holes,
diorite + max. depth
quartz 129.9m.
stockworks - 1 deep
centred on drill hole
N & NE depth 501.2m.
structure. - Intercepts
from 20.5 to
115.1m, with
ranges of
0.09-0.19 Cu
& 0.1-0.3 Au.
- Best
interval:
115.1m @ 0.14
Cu & 0.24 Au.
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Blongas Magnetite X X X X X X - 10 shallow
II (BII) altered drill holes
diorite + max. depth
quartz 150m.
stockworks - 3 deep
centred on holes (1 by
N & NE SA) to max.
structure. depth 605m.
- Intercepts
from 40.4 to
407.25m with
ranges of
0.19-0.5 Cu
and 0.25-1.05
Au.
- Best
interval:
407.25m @ 0.25
Cu & 0.45 Au
(incl. 102.25m
@ 0.5 Cu &
1.05 Au)
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Blongas Magnetic X X X X X X Not yet
III anomaly drill tested
(BIII) covered by
alluvium
diorite
and quartz
stockworks
are mapped
peripherally.
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Belikat Zones of X X X X X X X - 4 shallow
-Mahoni quartz drill holes,
stockworks max. depth of
in altered 150.8m.
diorite - Intercepts
centered from 19.7 to
on a complex 72.6m, with
structural ranges from
zone at the 0.05-0.1 Cu &
margin of a 0.18-0.42 Au.
regional - Best
circular interval:
feature. 67.6m @ 0.1 Cu
& 0.21 Au, the
last 2 samples
of this hole
gave 7.6m @
0.13 Cu & 0.38
Au.
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Kekalik 3 areas of X X X X X X X - 3 historic
quartz drill holes,
stockworks maximum depth
in altered of 150.2m.
diorite - Intercepts
centered from 17.3 to
on a local 72.1m with
circular ranges from
feature 0.03-0.13 Cu &
with N & NE 0.13-0.27 Au.
structural - Best
intersects. interval:
72.1m @ 0.13
Cu & 0.25 Au.
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KK2 Magnetite X X X X X X Not yet
altered drill tested
diorite +
quartz
stockworks
centered on
NE & NW
structure.
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KK3 Magnetite X X X X X X Not yet
altered drill tested
diorite +
quartz
stockworks
centered on
NE & NW
structure.
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Kedaro Magnetite X X X X X X X Not yet
altered drill tested
diorite +
quartz
stockworks
centered on
N & NW
structure
intersection.
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KD2 Magnetite X X X X X X Not yet
altered drill tested
diorite +
quartz
stockworks
centered on
NE & NW
structure.
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KD3 Quartz X X X X X X Not yet
stockworks drill tested
hosted in
porphyry
intrusives
centered on
N & NW
structure
intersection.
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KD4 Quartz X X X X X X Not yet
stockworks drill tested
hosted in
porphyry
intrusives
centered on
N & NE
structure
intersection.
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KD5 Zones of X X X X X Not yet
quartz drill tested
stockworks
hosted in
porphyry
intrusives
centered on
N & NE
structure
intersection.
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KD6 N & NE X X X X X Not yet
structure drill tested
intersection
on margin of
local
circular
feature,
target
to be mapped.
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Lapangan Magnetite X X X X Not yet
Geres altered drill tested
diorite +
quartz
stockworks,
mineralisation
also hosted in
breccia
(diatreme).
N & NE
structure
intersection
on margin of
regional
circular
feature.
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Qualified Person and Quality Control and Assurance
The information in this release has been compiled under the supervision of Southern Arc's Vice President of Exploration Hamish Campbell B.Sc.Geology, MAusIMM. Mr. Campbell has over 23 years of international mineral exploration experience including 21 years in Indonesia during which he has held such positions as Exploration Manager, Senior Geologist and Consulting Geologist. Mr. Campbell has sufficient experience relevant to the style of mineralization under consideration and qualifies as a Qualified Person as defined in terms of NI 43-101.
All assaying of samples was undertaken by the ITS laboratory in Jakarta. ITS is one of the world's largest product and commodity testing, inspection and certification organizations. The Jakarta laboratory is ISO 17025 accredited and employs a Laboratory Information Management System (LIMS) for sample tracking, quality control and reporting. In addition to the laboratory's quality assurance program, the Company employs its own comprehensive quality assurance/control program including blanks and standards.
On behalf of the Board of Southern Arc Minerals Inc.
John Proust, President and CEO
To view Figure 1, please click the following link: http://www.ccnmatthews.com/docs/sa0814.pdf
FOR FURTHER INFORMATION PLEASE CONTACT:
Southern Arc Minerals Inc.
John Proust
President and CEO
(604) 676-5241
(604) 676-5246 (FAX)
Website: www.southernarcminerals.com
