South Pacific Minerals Corp.
TSX VENTURE : SPZ

South Pacific Minerals Corp.

October 18, 2005 17:00 ET

South Pacific Minerals Corp.: Copper/Gold Soil Anomaly Defined and Drilling to Commence Tomorrow at Oomargi Prospect

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Oct. 18, 2005) - South Pacific Minerals Corp. (TSX VENTURE:SPZ) is pleased to report that grid-based soil sample assays have defined large, porphyry related, coincident copper and gold anomalies (with patchy molybdenum) at the Oomargi Prospect (approx. 7km NW of the Kodu Deposit.

Oomargi's potential for economic mineralisation will be assessed by 2 scout drill holes, located about 300m apart, that are planned to commence with rig shift tomorrow. The holes will be approx. 250m long and will test the central sector of the strongest copper and gold anomalies. The company's work followed up limited historic soil sampling and minor trenching undertaken by BHP more than a decade ago.

The copper anomaly is oriented to the NNE/NE, similar to the Kodu Deposit, is cohesive and greater than 2,200m long and 650m to 1000m (averaging approx. 750m) wide, using a cutoff of approx. 60ppm. The gold anomaly is coincident with the copper and has a similar overall size at a low-level (approx. 15ppb) cutoff. Both anomalies have higher tenor cores in the southern section, with copper being pseudo pear-shaped and up to approx. 500m wide and approx. 750m long, averaging approx. 500ppm, with a peak of greater than 0.1% copper. The copper and gold anomalies are very well defined and remain open to the NE.

Lead and zinc anomalies, peripheral to the copper and gold anomalism, indicate zonation typical of porphyry copper/gold deposits in this type of tectonic setting. Assays on the edges of the grid are generally less than 25ppm copper and below detection (1ppb) for gold. The northern approx. 40% of the copper and gold anomalies appears to be approx. 250m left laterally offset by a NW trending fault. This NE sector may represent a higher stratigraphic level in the system, as it is topographically higher than the SW sector, the anomalies have a lower overall assay tenor and silicification is suggested from interpretation of aeromagnetic data. The soil grid is 2,200m x approx. 1,700m and was sampled every 25m on 200m spaced lines. Analyses were completed by ALS Chemex Laboratories in Townsville, Australia.

The copper and gold anomaly at Oomargi occurs in metasediments and appears to be associated with high-level calc-alkaline intrusives in an oval shaped approx. 2,000 x 1,000m phyllic altered zone, surrounded by a halo of moderate to weak silicification. The 622m of historic hand trenching exposed mostly strong quartz-sericite-pyrite (phyllic) altered metasediments. Approximately 60% of the trench results were gold and sometimes copper anomalous, including 2m of 3.89g/t Au, 116m of 0.18g/t Au + 0.13% Cu, 52m of 0.3g/t Au + 0.06% Cu, 40m of 0.34g/t Au (incl. 6m of 0.9g/t) and 52m of 0.23g/t Au. These intercepts are considered to be excellent first pass results and their mode of occurrence in mineralised country rock reflects on the high overall prospectivity of the associated porphyry copper gold system.

Drilling has been completed on the first hole at the Sirimu Prospect, located approx. 1,000m SW of the company's hole KD004 at Kodu and details relating to lithologies and mineralisation encountered will be released in due course.

Mr. Peter McNeil (B.Sc., M.Sc.) is the qualified person who supervised the Oomargi soil sampling program. The spelling of the prospect's name has been modified to better reflect the landowner's pronunciation (formerly Rumage Prospect).

South Pacific Minerals Corp.

P.A.McNeil, President / CEO M.Sc.

The statements made in this News Release may contain certain forward-looking statements. Actual events or results may differ from the Company's expectations. Certain risk factors may also affect the actual results achieved by the company.


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

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