BOWMORE Exploration Ltd.

July 14, 2011 15:07 ET

BOWMORE Completes Clay Alteration Survey/ Outlines Large Alteration Zone

MONTRÉAL, QUÉBEC--(Marketwire - July 14, 2011) - BOWMORE Exploration Ltd. (TSX VENTURE:BOW) ("Bowmore") is pleased to announce that it has completed its phase 2 TerraSpec alteration sampling program, on the "Chivas" property located in the productive Sierra Madre gold belt of Mexico, State of Sonora. The Chivas property is optioned from Amex Exploration Inc. A total of 755 TerraSpec alteration samples were taken and analyzed for high temperature clay alteration minerals that are known to be associated with mineral deposits. Sample analysis was done by Melissa Mateer Ph.D. of Tabatay Geologic Consulting LLC. The program was designed to cover the 'Silica Cap", "Mesa", "Mesa Blanca", "Piedra Rodante" and the "Cerro Rojo" zones by taking samples at an average 100 meters spacing (visit:\chivas\TerraSpec.jpg).

The survey covered almost the entire Aster anomalies and the areas of intensely silicified/brecciated strata bound lithocap that is mapped over a strike length of 2.5 kilometres. The survey results indicated the presence of multiphase alteration minerals, starting with the buddingtonite (ammonium feldspar), followed by the Illite and ammonium (NH4) Illite, found in higher concentration on the NW of the large anomaly and on the Mesa Blanca area, being notably associated to volcanic hosted gold mineralization such as the gold bearing Piedra Rodante silicified breccias zone (visit:\chivas\Spectroscopy\results.jpg).

The signature and the disposition of the alteration minerals indicate the presence of a low epithermal sulphidation system (Au/Ag) trending NW. These ammonium bearing minerals are particularly interesting, and provide evidence of paleoboiling zones that may lead to fertile precious metal mineralization deposit. The silicified zones (lithocap) area (see press releases dated September 24th 2010 and April 13th 2011) located west of this whole system allows us to establish its original paleosurface level, starting by a large hectometric sequence of felsic tuff-rhyodacite volcanics followed by Cretaceous sediments. To date, the chemical results obtained from the Phase 1 survey samples and from all rock surface samples are showing a relation between anomalous concentrations in arsenic (As) with Illite, NH4 Illite and buddingtonite bearing zones. Chemical results from the phase 2 survey samples are still pending. The whole system is now proven to be bigger, including the Mesa and the Cerro Rojo zones in the NW, covering an area of approximately 5.7 km2 (visit:\chivas\alterationzone.jpg).

Structurally, the area was affected by Basin and Range NNW normal faults system and a deep ENE trending fault where the Piedra Rodante area was uplifted, exposing now higher grades with wider gold bearing zones (Hole PR07-19 with 15.24 meters at 1.26g/t Au and 182 g/t Ag). On the Mesa area, the presence of Illite and NH4 Illite is indicated by a sequence of NW to NNW trending silicified breccias and faults, dipping abruptly toward the east. On the Mesa Blanca area, the surface mapping and the results from the survey are supporting the presence of NW, NNW and an ENE faults that are acting as hydrothermal conducts.

Mr. Paul Dumas, President and CEO of Bowmore Exploration Ltd., stated: "We are pleased with the results to date and the recent TerraSpec survey is providing us with a better understanding of this very large alteration zone. We have outlined what seems to be an intense hydrothermal zone that covers several square kilometers".

Jean-Marie Pronovost P. Geo. and is the Qualified Person as defined by Canadian NI 43-101 who has reviewed this news release and is responsible for the technical information reported herein.


BOWMORE is a Canadian exploration mining company focused on precious metal exploration in Canada and Mexico.

For further information on BOWMORE, visit

Except for statements of historical facts, all statements in this news release regarding, without limitation, new project acquisitions, future plans and objectives are forward-looking statements which involve risks and uncertainties. There can be no assurance that such statements will prove to be accurate; Actual results and future events could differ materially from those anticipated in such statements.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Contact Information