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Roxgold Inc.

Publié le 19 novembre 2007

Airborne Geophysics Deliniates Multiple EM Conductors

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A PDF of the EM contour is available via email if interested and it will be on thewebsite by the end of the week.

 

AIRBORNE GEOPHYSICS DELINIATES MULTIPLE EM CONDUCTORS ASSOCIATED WITH STRUCTURE AND MINERALIZATION

 

Vancouver, B.C. (November 19, 2007) Roxgold Inc. (TSX.V: ROG) (“Roxgold” or “the Company”), has received the final report on an airborne geophysical survey flown August 28 to 30, 2007 by Aeroquest International Inc.  The survey was comprised of 564 line kilometers of time domain EM and high sensitivity magnetometer flown at 100 meter line spacing.  The EM component of the survey was successful in defining a number of potentially significant conductors.  The most noteworthy of which is a 2.3 km long north – south conductor that underlies the southern half of the topographic circular feature interpreted to be an uplifted block caused by an intrusion.  Two other EM anomalies correlate with soil geochemistry that was the basis for 2007 diamond drilling.  Finally two additional conductors of note lie to the south east beyond the limits of historical exploration.  The magnetic variability was very discrete with a property wide range of 110 nT (nanoTesla), however several subtle trends parallel to regional stratigraphy were identified.  All 2007 exploration, including trenching and drilling was completed prior to the receipt of the geophysical survey results. 

 

The northern end of the 2.3 km north-south EM conductor appears to be centered under the core of the circular uplifted block believed to be related to a buried intrusive.  Drilling on the eastern side of the property during 2007 season focused on a soil geochemistry anomaly approximately 300 meters northeast of this EM conductor.  As noted in the Company’s press release of September 13, 2007, several holes on the East side target area intersected wide intervals (~200 meters) of moderate to strongly sericitic altered monzonite that had been cut by numerous narrow quartz veins.  Locally the veins contain strong sulphide mineralization; predominantly pyrite +/- arsenopyrite, pyrrhotite, sphalerite, chalcopyrite.   The monzonite has been interpreted to be a sill indicating the main body of the intrusive was not intersected during 2007 drilling.  The strength of this north-south EM anomaly, its abrupt truncation and close proximity to both the intrusive hosted mineralization encountered in the 2007 drilling and gold-in-soil geochemical anomaly make this a priority target for the 2008 exploration program.   Well mineralized float boulders, including one approximately two thirds of a cubic meter grading 10 g/t gold, 25 g/t silver and 3.4% zinc,  have been found just down-ice of this conductor.   This linear EM anomaly extends a further 1500 meters southeast beyond the limits of the soil geochemistry grid


 

On the west side the airborne survey defined a 2.4 km long EM anomaly oriented approximately 340 degrees that appears to be a splay off the above north-south conductor.  This conductor is parallel to the 2.2 km long gold – arsenic soil geochemical anomaly. Trenching and drilling during the 2007 exploration program exposed multiple parallel graphitic horizons that coincide with the northern terminus of the EM anomaly with quartz sulphide veining, quartz breccia and stockwork mineralization (see press release of November 6 2007) in association with graphite.  This mineralization plots on the western flank of the north end of the EM conductor.  To date, this EM conductor has only been evaluated at two locations:   through trenching and drilling at the very northern end of the anomaly at 19800N – 21000E and through trenching at the approximately the mid point of the conductor some 1200 m south at 18600N – 21300E.  Significant arsenopyrite mineralization in an altered and strongly silicified sedimentary unit was exposed over 250 meters of strike length south of the 18600N – 21300E area.

 

Trenching and drilling of the east side targets during 2007 (holes 07 – 14 through 07 – 18) was based upon gold-in-soil geochemistry anomaly.  Subsequent plotting of these holes indicates they were collared on the western margin of an EM conductor interpreted to be narrower and weaker in magnitude than the major north-south conductor noted above.  Holes 17 through 18 which passed through the intrusive into the underlying meta-sediments, were terminated prior to reaching the EM conductor.  Hole 15, which intersected a mineralized quartz sulphide zone near the bottom of the hole may have drilled to sufficient depth to reach the conductor, depending upon the depth of the conductor. 

 

Several other significant conductors were identified in the course of the geophysical survey.  Two of these have strong EM signatures and one has an associated magnetic anomaly that is the strongest encountered in the survey.  Both of these targets lie outside of the soil geochemistry grid, are located in areas of dense forest cover and have never been the subject of systematic exploration.  Initial grid based prospecting and soil sampling will cover these targets early in the 2008 exploration program.

 

“The EM conductors correlate well with historic gold-arsenic soil geochemistry anomalies helping to refine current drill targets as well as developing new targets beyond the limits of historic exploration,” commented Alan Raven president of Roxgold.  “Certainly the major conductor in the immediate vicinity of the intrusive hosted mineralization encountered during 2007 drilling is a very exciting target that will be evaluated early in the 2008 program.”

 

Independent consulting geologist Brett LaPeare, MAusIMM, a qualified person as defined by National Instrument 43-101, has reviewed the information contained herein.

 

Roxgold Inc.

 

Per:  Alan Raven

 

President & CEO

 

 

 

 

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

 


Roxgold Inc.

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CODE : ROG.V
ISIN : CA7798992029
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Roxgold est une société d’exploration minière d'or basée au Canada.

Roxgold détient divers projets d'exploration au Canada.

Ses principaux projets en exploration sont YARAMOKO au Burkina Faso et TJ RIDGE au Canada.

Roxgold est cotée au Canada, aux Etats-Unis D'Amerique et en Allemagne. Sa capitalisation boursière aujourd'hui est 494,0 millions CA$ (370,5 millions US$, 344,8 millions €).

La valeur de son action a atteint son plus bas niveau récent le 05 décembre 2008 à 0,01 CA$, et son plus haut niveau récent le 09 mars 2012 à 2,27 CA$.

Roxgold possède 371 440 000 actions en circulation.

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