Bearclaw Capital Corp.

Bearclaw Capital Corp.

March 25, 2008 08:49 ET

Bearclaw Announces Presence of Significant ppm U on Recently-Acquired James Bay Property

MONTREAL, QUEBEC--(Marketwire - March 25, 2008) - Bearclaw Capital Corp. (TSX VENTURE:BRL). is pleased to announce that the analysis of the results of the exploration program carried out in the late summer of 2007 on its recently-acquired James Bay property shows the presence of significant concentrations of uranium.

Minexco Inc. of Montreal carried out an exploration project between August 18, 2007 and October 10, 2007 on Bearclaw's properties just south of Grande Riviere de la Baleine, about 230 km NE of Radisson, Quebec, and 130 km NNW of LG-4 Dam on La Grande Riviere.

In June of 2007, before sending out the follow-up exploration team, GPR Geophysique Inc., of Longueuil, Quebec, conducted airborne gamma ray spectrometer radiometric, VLF, and magnetic surveys, at 125 m spacing, over the whole property. The linear representation of the U, Th and K maps prepared by the geophysics team proved to be the most useful in identifying the parts of the properties with anomalous presences of U and Th. The larger part of the follow-up exploration work was directed towards these anomalous radioactive zones.

The follow-up exploration work was performed by a team of up to 11 persons, including one geologist. An intensive ground gamma ray spectrometer survey was carried out daily by up to 6 field persons, using a state of the art RS-125-Super-Spec. spectrometer. Laboratory certified chemical analyses of the chosen rock samples were then performed by ALS Chemex, of Val d'Or, Quebec.

Geophysical and Chemical Results

The ground spectrometer surveys and geological field observations resulted in the identification of two interesting sections: a North Section and a South Section. The overall U/Th ratio averages 6.6, with a geometric mean of 1.7. Four distinct zones (A to D) were identified in the NW part of the North Section. High field measured uranium concentrations (expressed in equivalent U values, or eU), with values of up to 6257 ppm eU, were observed in the B zone of the North Section. Concentrations of up to 9610 ppm eU were observed in a zone in the SW part of the South Section.

In the A zone of the North Section, the mean field measured concentration obtained from the 15 different mineralizations that define this zone is 510 eU - certified laboratory concentrations obtained from the 6 best mineralizations vary between 80 ppm and 1020 ppm U, with an average of 364 ppm U. In the B zone, the mean field measured concentration obtained from the 44 mineralizations that define this zone is 1297 eU - certified laboratory concentrations obtained from the 9 best mineralizations vary between 353 ppm and 4710 ppm U, with an average of 2174 ppm U. In the C zone, the mean field measured concentration obtained from the 74 mineralizations that define this zone is of 835 eU - certified laboratory concentrations obtained from the 29 best mineralizations vary between 344 ppm and 3690 ppm U, with an average of 1206 ppm U. In the D zone, the mean field measured concentration obtained from the 12 different mineralizations that define this zone is of 1005 eU - certified laboratory concentrations obtained from the 8 best mineralizations vary between 990 ppm and 2910 ppm U, with an average of 1453 ppm U.

The average field measured concentration obtained from the more than 90 mineralized sites that define the South Section is 510 eU ppm - certified laboratory concentrations obtained from the 8 best mineralizations vary between 500 ppm and 9610 ppm U, with an average of 2127 ppm U.

Description of the Geological Settings

The U mineralizations in the North Section and those in the South Section occur in two different geological settings. The mineralization in the South Section is present in the migmatized metasedimentary rocks (paragneisses) which have reached the stage of metatexites, with the lit-par-lit distribution of the whitish mobilizate in layers parallel to the foliation and gneissosity of the paragneisses. In several places, the paragneisses contain garnet. Bands of magnetite iron-formation of variable thickness, associated with the migmatized paragneisses, are commonly present. The mobilizate associated with the tonalites and tonalitic gneisses is pale pink to pink in colour, and occurs in thin layers parallel to the foliation. In addition, the migmatized tonalitic gneisses commonly contain mafic discontinuous bands and boudins of metabasalts and diorites, of varying dimensions (centimetric, decimetric, and metric in length), aligned parallel to the general foliation and tectonic banding present in the rocks. By contrast, the mineralizations in the North Section are associated with the migmatization of foliated tonalites and tonalitic gneisses. The migmatized tonalites and tonalitic gneisses are consistently with an E-W orientation, and a moderate to steep dip towards the north. These dips may also become sub vertical in places.

The structural orientations of the migmatized paragneisses in the South Section are more variable, possibly as a result of folding of the rocks. Both the paragneisses and the tonalitic rocks are also commonly injected by pale pink to pink pegmatite - granite veins and dykes of variable thickness. The pegmatite-granite veins and dykes may be conformable or discordant with respect to the foliation of these rocks. In both Sections, some outcrops may be dominated by the granitic and pegmatitic material as a result of advanced migmatization. Rock samples for chemical analyses were systematically collected from positions where high "Total Radioactivity" (in cps) and high spectrometer "measurements" for uranium (eU) were observed using the ground RS-125 spectrometer. The uranium mineralization (yet to be confirmed as uraninite) appears to be associated with biotite, magnetite present in the rocks. Biotite, which may be uniformly distributed, also occurs in mafic streaks and narrow discontinuous layers and patches. These discontinuous layers and patches of medium to coarse biotite generally develop adjacent to mobilizate layers, and also adjacent to veins and dykes of pink pegmatite-granite present in the rocks. The radioactive zones also commonly contain very minor amounts of disseminated molybdenite. In some places, the presence of some sphene, zircon, biotite books and sulphides was also observed in the mineralized zones. In other places, the mineralized rocks show greyish, greenish or reddish-brown alterations. Typical yellowish alteration products of uranium minerals (gummite group of minerals) are commonly observable from rocks exposed by blasting, suggest that the meteoric alteration reaches depths of more than 20 inches. In some cases, the pegmatitic granitic injections present in the outcrops may also be anomalous in uranium mineralization.

The fieldwork and the analysis of the results were overseen by Marc Beaumier, P.Geo., an independent consultant and a qualified person for the purposes of National Instrument 43-101. The disclosure in this press release is based upon information prepared under his supervision.

This news release may contain forward-looking statements. Known and unknown risks and uncertainties may cause actual events or results to materially differ from those expressed or implied by any such forward-looking statements.

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

Contact Information

  • Bearclaw Capital Corp.
    Christian de Saint-Rome