MANTLE
RESOURCES INC.
FOR IMMEDIATE RELEASE
����������������� info@mantleresources.com
SIGNIFICANT STEPOUT: 11.32 METRES GRADING
13.83% ZINC, 3.24% LEAD, 21.11 g/t SILVER
ASSAY RESULTS FOR HOLE: A-07-42, AKIE PROPERTY, B.C.
Vancouver, B.C. ?
October 4, 2007 ? Mantle Resources Inc. (TSX Venture:
MTS; Frankfurt: AOF7E1) (the ?Company?), is pleased to
report additional assay results from the 2007 exploration program currently
underway at its 100% owned Akie zinc-lead property, located in northeastern
British Columbia, approximately 260 kilometers north-northwest of the town of
Mackenzie.
Expansion of
Main Cardiac Creek Zone - Intercept Delivers 17.07% Zinc+Lead Over 11.32 Metres
Hole:
A-07-42. (Az: 060o; Dip: -80o;
Grid: 2875S/0200W; Elev: 1602
metres; End of hole:712.02
metres)
These
compiled assay values have been derived from analytical data provided by Acme
Analytical Laboratories Ltd., Vancouver, B.C. (Acme).� The true width (TW) of the mineralization is
estimated to be approximately 76% of the core interval, but this is subject to
revision.
This high
grade intercept represents a significant step-out, approximately 175
metres, along plunge to the north of the high grade
mineralization encountered in hole A-05-32, completed in 2005, which yielded 26.7 metres (TW: 19.6 meters) grading
11.98% zinc, 2.73% lead and 22.23 g/t silver.�
The nearest intercept on section with A-07-42 is located some 180 metres up dip, in A-06-38,
drilled in 2006, and comprises 13.85 meters (TW: 11.76 meters) of 8.99%
zinc, 1.68% lead and 16.57 g/t silver.�
This mineralized horizon, referred to as the Main Cardiac Creek Zone,
occurs at the base of the ?Gunsteel? formation.
In addition
to the Main Cardiac Creek Zone mineralization reported above, Hole A-07-42 also
intersected an upper zone of mineralization (?hanging wall zone?) of
significance: 632.8 to 658.5
metres grading 3.87% zinc, 0.58% lead and 4.42 g/t
silver.� This zone, while not the main
target of Mantle?s drilling, has been noted in other
holes and appears to be thicker in this area of the deposit.� Mantle believes that this horizon could
become a specific target of interest.
?We
are very pleased with the results from the second hole of our expanded 2007
program,? commented Mr. Jim Mustard, President of
Mantle Resources.� ?The
results provide further support to our belief in the exploration potential for
the Main Cardiac Creek Zone: hole A-07-42 is 500 metres on strike
from hole A-07-43 (27.6
metres grading 15.2% zinc+lead).� The area along plunge from A-07-42 is now
open and its definition will, of course, require further drilling.� The expanding Main Cardiac Creek mineralized
zone will continue to be the focus of our drilling, but as seen in the hanging
wall zone, and untested targets elsewhere on the property, exploration
potential remains very high.?
Assay Samples and Procedures
All core
selected for analysis is split by diamond saw and sampled, with a maximum
length of 1.5 meters
of core in each sample.� These are placed
in plastic bags, shipped in secure containers to Acme Analytical Laboratories
Ltd., Vancouver, B.C., and there subjected to aqua regia digestion followed by
ICP-ES and ICP-MS analysis (Acme Group 7AX Multi-Element Assay) to determine
zinc, lead and silver content.� Standards
and blanks are inserted into the assay stream at a rate of about one of each
for every 25 core samples.� Check assays
are routinely carried out by Global Discovery Labs, also in Vancouver,
employing aqua regia digestion followed by atomic absorption finish (Group 4).
About the Akie Property
The Akie
zinc-lead property is situated within the southern-most part (Kechika Trough)
of the regionally extensive Paleozoic Selwyn Basin, one of the most prolific
sedimentary basins in the world for the occurrence of SEDEX zinc-lead-silver
and stratiform barite deposits.
Drilling on
the Akie property by Inmet Mining Corporation during the period 1994 to 1996
and by Mantle in 2005, 2006 and this year has identified a significant body of
baritic SEDEX mineralization (Cardiac Creek Zone) with an average thickness
exceeding 12 meters
and an average zinc+lead content in excess of 10%.� The deposit is hosted by variably siliceous,
fine grained clastic rocks of the Middle to Late Devonian
?Gunsteel Formation?.
Two similar
deposits, Cirque and South Cirque, located some 20 kilometers
northwest of Akie and owned under a joint venture by Teck Cominco and Korea
Zinc, are also hosted by Gunsteel rocks ? these deposits have a combined geologic inventory in excess
of 50 million tonnes averaging approximately 10% combined zinc+lead.
Qualified Person
John R.
Fraser, P.Geo. (B.C.) is the Qualified Person for the Company, as defined by NI
43-101, and is responsible for the technical information contained in this
release.
The TSX Venture Exchange has neither approved
nor disapproved the contents of this press release.
ON BEHALF OF
THE BOARD OF DIRECTORS
MANTLE
RESOURCES INC.
?peeyush varshney?
�����������������������������������������������������������
pEEYUSH vARSHNEY, LL.B
CEO & Chairman