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02.06.2010
ROME ANNOUNCES DRILLING RESULTS ON WEST AND CENTRAL ZONES, DON LUIS GREISEN-PORPHYRY SILVER-GOLD-TUNGSTEN DEPOSIT, SONORA, NORTHERN MEXICO
ROME ANNOUNCES DRILLING RESULTS ON WEST AND CENTRAL ZONES, DON LUIS GREISEN-PORPHYRY SILVER-GOLD-TUNGSTEN DEPOSIT, SONORA, NORTHERN MEXICO
INTRODUCTION
Roma Recursos de Mexico, S.A. de C.V., a wholly owned subsidiary of Rome Resources Ltd., has completed preliminary drilling on the West and Central Zones of the Don Luis Silver-Gold-Tungsten Greisen-Porphyry Deposit in Sonora, Northern Mexico. The property, near San Miguel de Horcasitas, is about 45 kilometers north of Hermosillo, the Capital of Sonora. The exploration target is an open pit, porphyry style mine. This News Letter reports the results from this drilling program, along with reinterpretation of two trenches that were completed in 2007.
Drilling of 9 holes (Table 1: DLS10DD01 to DLS10DD09), totaling about 2,000 meters, was completed in March by Major Drilling de Mexico, S.A. de C.V. Complete assays have been received only recently. Core, mainly HQ, was split in the field, prepared in Hermosillo by Sonora Sample Preparation, S.A. de C.V., and analyzed in British Columbia, Canada, by Acme Analytical Laboratories (Vancouver) Ltd. of Vancouver, and Pioneer Laboratories Inc. of Richmond.
RESULTS
Location of the trenches and drill holes are in Figure 1 and Table 1. Specifications for compositing of samples from the trenches and drill holes are in Table 2. Composited results for the trenches and drill holes are presented as follows:
1. Silver intersections of interest are in Table 3.
2. Gold intersections of interest are in Table 4.
3. Tungsten intersections of interest are in Table 5.
In addition, example bar-profiles of silver, gold and tungsten are presented for diamond drill hole DLS10DD02 in Appendix A. Box plots of silver, gold, tungsten and molybdenum for the three major rock types encountered in drilling are graphed in Appendix B.
Please find the figues and tables under the following link: http://www.irw-press.com/dokumente/10060110DlsTrDdNewsRelease.pdf
DISCUSSION
Drilling of seven holes in the West Zone was designed to test an induced polarization chargeability anomaly with flanking high resistivity and anomalous surface geochemistry. Trenches in leached capping in this zone have indicated important values in silver, gold and tungsten. The size of the West Zone chargeability anomaly is about one kilometer in diameter.
Drilling to a vertical depth of about 400 meters (Table 1) encountered only oxidized leached capping. Core recovery was poor at about only 85% for the first three holes (Table 1) due to very blocky and faulted ground. This poor core recovery might have resulted in poor recovery of silver and gold, both of which are probably concentrated in limonite that was selectively lost during drilling or trench sampling. Consequently, all assay values are probably depleted to an unknown extent. No obvious explanation for the drill-targeted chargeability and resistivity anomalies, obtained from the induced polarization survey (see News Release #05 of February 16, 2010), was obtained from the drilling.
The two drill holes that were drilled in the Central Zone (Fig. 1 & Table 1) were designed to intersect quartz-hematite breccias, but failed to do so. These breccias and surrounding greisens were bulk sampled on the surface. Assay results from this survey will be released when available.
Three major rock units were encountered. From probable oldest to youngest these units are: (i) quartz-feldspar porphyry [Appendix B: RKNO 1.0], (ii) muscovite altered quartz-feldspar porphyry [RKNO 2.0], and (iii) greisens [RKNO 3.0]. The content of silver, gold and tungsten increases with the above order of the units (Appendix B); thus, the best mineralization is in the greisen.
Assay results are significant and encouraging given the preliminary stage of exploration. Silver (Table 1 and Appendices A & B) is particularly interesting. Table 4 shows that the trenches and drill holes intersected a total of 634 meters of 12 ppm silver.
CONCLUSIONS
There are three zones at Don Luis: East Zone, Central Zone and West Zone. These zones have the potential to host significant open pit mines.
The Don Luis Zones taken together outline an intensely muscovite-quartz-limonite-hematite altered area that is more than three kilometers east-west by one kilometer north-south. This alteration system is huge and the program to date only has scratched the potential of the area. And this potential is substantial, given the encouraging results reported here. Because of poor core recovery and the oxidized nature of the rocks encountered, assay values are thought to underestimate real values. In addition, given the low “work index” of the greisenized rocks, low-grade metals might be won by relatively low cost gravity and leaching methods.
Trenching and road access building is currently underway on the East Zone. This zone has similar, but more complex, geological and geophysical characteristics to the West Zone and Central Zone. Sampling of new trenches will commence in June.
Rome Resources Ltd. is a Canadian mineral exploration company focused on gold and copper projects in Argentina and Mexico. It is publicly traded on the TSX Venture Exchange under the symbol RMR, and on the Frankfurt Exchange as 33R. Company and exploration details are available at: www.RomeResources.com (click: “What’s New” [SEDAR News Releases] and “Projects”).
On behalf of the Board of Directors
“Colin I. Godwin”
Colin I. Godwin, PhD, PEng, PGeo
President and Director of Rome Resources Ltd.
Professor Emeritus, The University of British Columbia
Telephone: (604) 939-6507
Neither the 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 News Release. Colin I. Godwin, PhD, PEng, PGeo, a qualified person under National Instrument 43-101, has verified data disclosed in this release. This News Release contains forward-looking statements. Forward-looking statements are statements which relate to future events. These statements are only predictions and involve known and unknown risks, uncertainties and other factors that may cause our or our industry’s actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. While these forward-looking statements, and any assumptions upon which they are based, are made in good faith and reflect our current judgment regarding the direction of our industry, actual results will almost always vary, sometimes materially, from any estimates, predictions, projections, assumptions or other future performance suggested herein.
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INTRODUCTION
Roma Recursos de Mexico, S.A. de C.V., a wholly owned subsidiary of Rome Resources Ltd., has completed preliminary drilling on the West and Central Zones of the Don Luis Silver-Gold-Tungsten Greisen-Porphyry Deposit in Sonora, Northern Mexico. The property, near San Miguel de Horcasitas, is about 45 kilometers north of Hermosillo, the Capital of Sonora. The exploration target is an open pit, porphyry style mine. This News Letter reports the results from this drilling program, along with reinterpretation of two trenches that were completed in 2007.
Drilling of 9 holes (Table 1: DLS10DD01 to DLS10DD09), totaling about 2,000 meters, was completed in March by Major Drilling de Mexico, S.A. de C.V. Complete assays have been received only recently. Core, mainly HQ, was split in the field, prepared in Hermosillo by Sonora Sample Preparation, S.A. de C.V., and analyzed in British Columbia, Canada, by Acme Analytical Laboratories (Vancouver) Ltd. of Vancouver, and Pioneer Laboratories Inc. of Richmond.
RESULTS
Location of the trenches and drill holes are in Figure 1 and Table 1. Specifications for compositing of samples from the trenches and drill holes are in Table 2. Composited results for the trenches and drill holes are presented as follows:
1. Silver intersections of interest are in Table 3.
2. Gold intersections of interest are in Table 4.
3. Tungsten intersections of interest are in Table 5.
In addition, example bar-profiles of silver, gold and tungsten are presented for diamond drill hole DLS10DD02 in Appendix A. Box plots of silver, gold, tungsten and molybdenum for the three major rock types encountered in drilling are graphed in Appendix B.
Please find the figues and tables under the following link: http://www.irw-press.com/dokumente/10060110DlsTrDdNewsRelease.pdf
DISCUSSION
Drilling of seven holes in the West Zone was designed to test an induced polarization chargeability anomaly with flanking high resistivity and anomalous surface geochemistry. Trenches in leached capping in this zone have indicated important values in silver, gold and tungsten. The size of the West Zone chargeability anomaly is about one kilometer in diameter.
Drilling to a vertical depth of about 400 meters (Table 1) encountered only oxidized leached capping. Core recovery was poor at about only 85% for the first three holes (Table 1) due to very blocky and faulted ground. This poor core recovery might have resulted in poor recovery of silver and gold, both of which are probably concentrated in limonite that was selectively lost during drilling or trench sampling. Consequently, all assay values are probably depleted to an unknown extent. No obvious explanation for the drill-targeted chargeability and resistivity anomalies, obtained from the induced polarization survey (see News Release #05 of February 16, 2010), was obtained from the drilling.
The two drill holes that were drilled in the Central Zone (Fig. 1 & Table 1) were designed to intersect quartz-hematite breccias, but failed to do so. These breccias and surrounding greisens were bulk sampled on the surface. Assay results from this survey will be released when available.
Three major rock units were encountered. From probable oldest to youngest these units are: (i) quartz-feldspar porphyry [Appendix B: RKNO 1.0], (ii) muscovite altered quartz-feldspar porphyry [RKNO 2.0], and (iii) greisens [RKNO 3.0]. The content of silver, gold and tungsten increases with the above order of the units (Appendix B); thus, the best mineralization is in the greisen.
Assay results are significant and encouraging given the preliminary stage of exploration. Silver (Table 1 and Appendices A & B) is particularly interesting. Table 4 shows that the trenches and drill holes intersected a total of 634 meters of 12 ppm silver.
CONCLUSIONS
There are three zones at Don Luis: East Zone, Central Zone and West Zone. These zones have the potential to host significant open pit mines.
The Don Luis Zones taken together outline an intensely muscovite-quartz-limonite-hematite altered area that is more than three kilometers east-west by one kilometer north-south. This alteration system is huge and the program to date only has scratched the potential of the area. And this potential is substantial, given the encouraging results reported here. Because of poor core recovery and the oxidized nature of the rocks encountered, assay values are thought to underestimate real values. In addition, given the low “work index” of the greisenized rocks, low-grade metals might be won by relatively low cost gravity and leaching methods.
Trenching and road access building is currently underway on the East Zone. This zone has similar, but more complex, geological and geophysical characteristics to the West Zone and Central Zone. Sampling of new trenches will commence in June.
Rome Resources Ltd. is a Canadian mineral exploration company focused on gold and copper projects in Argentina and Mexico. It is publicly traded on the TSX Venture Exchange under the symbol RMR, and on the Frankfurt Exchange as 33R. Company and exploration details are available at: www.RomeResources.com (click: “What’s New” [SEDAR News Releases] and “Projects”).
On behalf of the Board of Directors
“Colin I. Godwin”
Colin I. Godwin, PhD, PEng, PGeo
President and Director of Rome Resources Ltd.
Professor Emeritus, The University of British Columbia
Telephone: (604) 939-6507
Neither the 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 News Release. Colin I. Godwin, PhD, PEng, PGeo, a qualified person under National Instrument 43-101, has verified data disclosed in this release. This News Release contains forward-looking statements. Forward-looking statements are statements which relate to future events. These statements are only predictions and involve known and unknown risks, uncertainties and other factors that may cause our or our industry’s actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by these forward-looking statements. While these forward-looking statements, and any assumptions upon which they are based, are made in good faith and reflect our current judgment regarding the direction of our industry, actual results will almost always vary, sometimes materially, from any estimates, predictions, projections, assumptions or other future performance suggested herein.
NEWSLETTER REGISTRIERUNG:
Aktuelle Pressemeldungen dieses Unternehmens direkt in Ihr Postfach:
<a href="http://www.irw-press.com/alert_subscription.php?lang=en&isin=CA7759011017">http://www.irw-press.com/alert_subscription.php?lang=en&isin=CA7759011017</a>
Mitteilung übermittelt durch IRW-Press.com. Für den Inhalt ist der Aussender
verantwortlich.
Kostenloser Abdruck mit Quellenangabe erlaubt.