Thundermin and Cornerstone intersect 2.5% Cu over 5.5 m at the Little Deer deposit



    TSXV - "CGP"; F - "GWN"; B - "GWN"; OTC - "CTNXF"

    MOUNT PEARL, NL, Oct. 31 /CNW Telbec/ - Cornerstone Capital Resources
Inc. (TSXV-CGP) (F-GWN) (B-GWN) (OTC-CTNFN) and 50% joint venture partner
Thundermin Resources Inc. (TSX-THR) announce that they have intersected
sulphide mineralization grading 1.24% Cu over 25.5 m, including a higher grade
interval of 2.5% Cu over 5.5 m, at an approximate vertical depth of -625 m on
the Little Deer copper deposit (see Table 1 below). This intersection is
approximately 110 m deeper than any historical intersection within the Little
Deer deposit and demonstrates there is good continuity of high grade copper
mineralization below and along strike from areas that were mined during the
1970s.

    
    Table 1: Little Deer Assay Results


    -------------------------------------------------------------------------
    Hole    Easting  North-  Hole    Dip      Az    From     To  Inter-   Cu
    No           (m)   ing  Depth    (de-    (de-     (m)    (m)   val    (%)
                        (m)    (m) grees)  grees)                   (m)
    -------------------------------------------------------------------------
    LD-07-01  13486   4513    650  -68.0   325.0   561.3  561.4    0.1  8.90
    -------------------------------------------------------------------------
                                                   566.1  566.7    0.6  3.20
    -------------------------------------------------------------------------
    LD-07-02  13634   4536    680  -74.6   344.2   644.5  670.0   25.5  1.24
    -------------------------------------------------------------------------
    (incl)                                         644.5  650.0    5.5  2.50
    -------------------------------------------------------------------------
    and                                            644.5  648.5    4.0  2.82
    -------------------------------------------------------------------------
    and                                            664.0  670.0    6.0  1.75
    -------------------------------------------------------------------------
    LD-07-03  13634   4536    768  -76.9   330.8    Hole terminated short of
                                                            target
    -------------------------------------------------------------------------
    LD-07-04  13634   4536    422  -73.4   336.5    Hole terminated short of
                                                            target
    -------------------------------------------------------------------------
    LD-07-05  13751   4507    578  -67.6   328.6        Assays pending
    -------------------------------------------------------------------------
    LD-07-06  13751   4507         -71.3   328.0          In progress
    -------------------------------------------------------------------------
    Notes: All widths recorded above are core lengths.
    

    Based on widely spaced drilling, comprising 14 diamond drill holes, the
Little Deer deposit is interpreted to form a semi-continuous sheet of
mineralization, starting from a vertical depth of -250 m, extending to a depth
of -625 m, over a horizontal distance of approximately 500 m. The current
diamond drilling program comprising approximately 5,300 m of drilling in 8 to
9 holes is designed to extend the mineralization both at depth and along
strike of the deposit.
    To date, 3,098 m of drilling in five holes has been completed. LD-07-01
was collared to intersect the Little Deer mineralized horizon at the -550 m
elevation approximately midway between historical holes LD-00-12 and
LD-98-07 (see Figure 2 accompanying News Release dated May 1, 2007). Hole
LD-00-12 is the deepest westerly hole drilled on the property to date. Hole
LD-07-01 intersected two, narrow, high grade copper intervals that assayed
8.90% Cu over 0.1 m and 3.20% Cu over 0.6 m. These zones are interpreted to be
the upper edge of the copper mineralization in this area of the deposit.
Additional drilling will be required in this area to further define the extent
of the copper mineralization in holes LD-00-12 and LD-98-07.
    Hole LD-07-02 intersected a 50.4 m zone of altered volcanics containing
variable amounts of pyrite-pyrrhotite-chalcopyrite stringer mineralization. A
25.5 m interval within this zone assayed 1.24% Cu, including 5.5 m of
semi-massive pyrrhotite-chalcopyrite-pyrite from 644.5 to 650.0 that assays
2.5% Cu and 6.0 m of stringer sulphides from 664.0 to 670.0 that assays 1.75%
Cu. The intersection in hole LD-07-02 is very significant in that it occurs
approximately 110 m below historical hole LD-98-04 that assayed 4.3% Cu over
9.6 m and demonstrates that the Little Deer copper deposit in this area
remains open at depth below -625 m.
    Hole LD-07-03 was collared to intersect the mineralized horizon at the
-550 m elevation approximately 75 m west and slightly deeper than historical
hole LD-98-04. Hole LD-07-03 was lost at 768 m due to drilling problems. This
hole has been lined with PVC pipe to accommodate a future borehole Pulse EM
survey.
    Hole LD-07-04 was collared to intersect the mineralized horizon
approximately 50 m below historical hole LD-98-06 which assayed 1.1% Cu over
16.9 m. This hole was abandoned at 422 m due to excessive deviation.
    Hole LD-07-05 was collared to intersect the mineralized horizon at the
-460 m elevation between historical holes LD-98-03 and LD-98-08 which assayed
3.1% Cu over 12.9 m and 1.6% Cu over 38.7 m respectively. This 2007 hole
intersected a 73 m interval of intermediate volcanic rocks from 456 to 529 m,
containing variable amounts of disseminated and stringer sulphide
mineralization similar in character to that intersected in LD-07-02. Included
is a zone of semi-massive sulphide mineralization from 516.4 to 519.25 m.
Assays for the mineralized intervals are pending.
    Hole LD-07-06 was collared to intersect the mineralized horizon
approximately 100 m below hole LD-07-05 on the -575 m elevation between
historical hole LD-98-04 and current hole LD-07-02. This hole is in progress
at 200 m depth.
    Cornerstone and Thundermin have the option, on a 50/50 basis with
Thundermin as operator, to earn a 100% interest in the Little Deer copper
deposit and adjacent property from Weyburn Investments Ltd. ("Weyburn").
Details of the terms of the agreement with Weyburn and the results of
historical exploration programs undertaken on the Little Deer copper deposit
are contained in news releases issued by Cornerstone and Thundermin dated
May 1, June 21 and July 10, 2007. This information can also be found on
Cornerstone's and Thundermin's respective websites at
www.cornerstoneresources.com and www.thundermin.com.
    Andrew Hussey, PGeo., Project Geologist and Lands Manager, Cornerstone
Resources Inc., is responsible for supervising the drilling program for the
purposes of National Instrument 43-101. All 2007 drill holes are NQ in size.
Specific gravity, rock quality determinations and photographic logging of
significant mineralized intersections are systematically performed prior to
assaying. The core is logged and the mineralized sections, where appropriate,
are sawn in half at a core logging facility in Springdale. Half of the core is
submitted for analyses to Eastern Analytical Limited, an independent and
qualified assayer located in Springdale, Newfoundland. The remaining half of
the core is kept for future reference. Blanks, duplicates and standards are
routinely used as part of the assay procedures.

    This press release was prepared by Andrew Hussey, PGeo, and Bruce Mitton,
PGeo, Exploration Manager Canada for Cornerstone who are Qualified Persons as
per National Instrument 43-101.

    On Behalf of the Board,
    Glen H. McKay
    President & CEO


    The common shares of the Company are currently listed on the TSXV in
Canada (symbol CGP), the OTC in the USA (symbol CTNXF) and the Frankfurt Stock
Exchange (symbol GWN)

    The TSX Venture Exchange does not accept responsibility for the adequacy
    or accuracy of this release.




For further information:

For further information: available on the Cornerstone Web site at
www.cornerstoneresources.com; via e-mail at communications@crigold.com; or
toll free at 1-877-277-8377; Renmark Financial Communications Inc.: Tina
Cameron, tcameron@renmarkfinancial.com; Maurice Dagenais,
mdagenais@renmarkfinancial.com, (514) 939-3989, Fax: (514) 939-3717,
www.renmarkfinancial.com

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