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Barker Identifies Subduction Zone Diamond Potential on its Tasse Project

 

For immediate release
BM-09-141

Barker Identifies Subduction Zone Diamond Potential on its Tasse Project

Prince George, B.C., April 20, 2009 -- Barker Minerals Ltd. ("BML" on TSX/V) (the "Company") is pleased to announce that a diamond indicator study has produced results showing diamond indicator minerals similar to that of the Subduction Zone Diamond model on its 100% owned Tasse Mantle Project. The project is located 180 km's south of Prince George and 84 km's northeast of Williams Lake, in the Cariboo region of British Columbia. The project has excellent access and infrastructure nearby. (Tasse Location Map).

A hill covering 15 sq km's is believed to be a part of a volcanic vent complex. Vesicular breccia associated with the vent (hill) contains abundant large clasts and xenoliths of coarse granular olivine, pyroxene and garnet, and is considered to be mantle peridotite. The hill is believed to be associated with a lamproite diatreme and the xenoliths of mantle rock in the breccia could possibly contain diamonds. It is located off the western edge of the North American Craton in a Mobile Terrane associated with deep faulting. (Tasse Tectonic Setting)

Indicator Mineral Study
Four bedrock grab samples from the Tasse project were submitted to True North Mineral Laboratories of Timmons Ontario, for heavy mineral separation (HMS). The samples had a high number of potential diamond indicator grains show up after the heavy mineral separation phase. Of these grains a number were chosen for follow up microprobe studies, at CF Mineral Research facilities in Kelowna BC., to determine if they were indeed diamond indicators and thus identify the Tasse project as having potential to host an economic diamond deposit.

Diamond Indicator Study Results
Microscopic examination of minerals from the xenoliths demonstrate the existence of diamond indicator minerals in all 4 samples including, bright green clinopyroxenes (chrome diopsides); forsteritic olivine; ilmenites; chromites; yellowish orange to reddish purple eclogitic garnets; and unidentified clear minerals. (Tasse Diamond Indicator pics) Micro probe analysis of minerals from the samples indicate the xenoliths to be spinel Iherzolites from an off-craton mantle peridotite, mantle rock, in keeping with the subduction zone model. (Tasse Mantle Peridotite pics)

Ecogitic Garnets
Eclogitic garnets are formed at similar depths in the mantle as diamonds. The identification of eclogitic garnets indicates that the Tasse mantle rock has been sampled deep enough in the mantle to tap the diamond stability field, and thus could contain diamonds. (Tasse Eclogitic Mantle rock pics)

Further exploration programs and studies are required to determine the economic potential of the Tasse project. Recent government magnetic airborne surveys will be of assistance in identifying the extent of the favourable known surface mantle host rock, and to identify other areas in the district which could reflect a similar geological environment. The mantle rocks are magnetic to strongly magnetic and should be easily detected by airborne magnetic surveys and follow up ground surveys

Argyle Lamproitic Diamond Deposit
The Argyle Subduction Zone related diamond deposit was discovered in 1979 and is considered to be the world's largest, and richest, diamond mine in the world. The Argyle deposit is located in the Kimberley Region of Western Australia and is a diamondiferous Lamproitic hosted deposit, not a conventional Kimberlite type. The Argyle deposit is located "off craton" in a mobile terrane with deep faulting and is in Proterozoic age rocks similar to the Tasse area. (Subduction Zone Diamond Models)

British Columbia Geological Survey -- Subducted Zone Diamond Exploration Model (Diamond Exploration Concepts in BC Geofile 2004-3 - Simandl G.J.and Robinson, N.)

Additional Staking Completed
With the diamond indicator studies returning positive results Barker has recently staked 12,381 hectares (30,595 acres) contiguous to the Tasse project. The new claim area is favorable to host a subducted zone related environment with diamond potential similar to the Tasse project.

Tasse Project Webinar Presentation
Barker Minerals is pleased to invite interested parties to a free Webinar presentation on the Tasse project. The date and times are: 10:00 AM and 7:00 PM Pacific time on Tuesday April 21, 2009. To attend, please click on the link provided below to register to the Webinar of your choice. The presentation can be viewed and heard over the internet with either an internal microphone and speaker system, or a headset which can be plugged into the USB port of most computers.(10:00AM Webinar)(7:00PM Webinar)

The scientific and technical information contained in this news release was prepared under the supervision of Rein Turna, B.Sc., P.Geo. the Company's "qualified person" under National Instrument 43-101 Standards of Disclosure for Mineral Projects.

Barker Minerals is advancing exploration on its mineral properties in the Cariboo Gold District, one of the most mineralized belts in British Columbia. The Company has 22 projects on its exploration properties, all of which are 100% owned by Barker Minerals. Eight projects have drill-ready gold and/or massive sulphide targets with permits in place for 3 projects for planned programs for 2009. Programs are also being planned to further the significant discoveries of mineralization on the Company's Frank Creek VMS and Kangaroo Gold projects.

Certain statements in this press release may be considered forward-looking information, including those relating to "plans" of the Company. Such information involves known and unknown risks, uncertainties and other factors -- including the availability of funds, the results of financing and exploration activities, the interpretation of drilling results and other geological data, project cost overruns or unanticipated costs and expenses and other risks identified by the Company in its public securities filings -- that may cause actual events to differ materially from current expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this press release. The Company disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

FOR FURTHER INFORMATION PLEASE CONTACT:
Louis E. Doyle, President & CEO
Barker Minerals Ltd.
Tel: (250) 563-8752
Fax: (250) 563-8751

www.barkerminerals.com

Robert H. Kuhl
Barker Minerals Ltd.
Tel: (604) 321-0709
Fax: (604) 321-0719

 
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