TSX-V: ROK
VANCOUVER, April 13 /PRNewswire-FirstCall/ - Roca Mines Inc.
(TSX-V: ROK) ("Roca" or "the Company") has received final assay
results from a single drillhole at the Once Bocas target at the
Nuevo Milenio silver-gold project. The project is located near
Tepic in the state of Nayarit, Mexico.
Drilling Highlights:
- Drillhole NM-10-05 intersected several intervals of silver-gold
mineralization at Once Bocas, returning a near-surface interval of
12.19 m averaging 90.9 g/t Ag and 0.496 g/t Au (including 2.49 m
grading 379.6 g/t Ag and 2.238 g/t Au), two intermediate intervals,
and a lower 4.07 m interval averaging 114.5 g/t Ag and 0.311 g/t Au;
and,
- Once Bocas has had very limited drilling to date, however the recent
results highlight mineralization extends beyond discreet veins and
into appreciable zones of altered wallrock, locally containing quartz
stockworks and sheeted veinlets.
Once Bocas Zone
Once Bocas is a broad, moderate
to intense argillic alteration zone that includes numerous
well-developed quartz stockworks and several discrete veins. The
zone has a minimum strike length of 350 m, its vertical dimension
is more than 150 m and its width at surface is approximately 100 m.
Additional surface showings to the northwest and southeast along
strike suggest that the Once Bocas zone could have an overall
strike length well in excess of 1,000 m.
Drillhole NM-10-05, a twin of DDH-06-03, was collared on the
central part of the known Once Bocas zone, 550 metres
west-southwest of drillhole NM-10-01. Hole NM-10-05 successfully
cut the zone returning multiple intersections of low-grade
silver-gold mineralization within which high-grade silver-gold
veins occur. The following table compares previous sample intervals
and assays with those from drillhole NM-10-05 of the 2010
program.
Table 1: Comparison of DDH-06-03 and NM-10-05 (Once Bocas)
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Drill Hole From (m) To (m) Interval (m) Ag (g/t) Au (g/t)
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DDH-06-03 18.00 30.00 12.00 109.6 1.170
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including 26.00 28.00 2.00 471.7 5.479
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And 132.00 146.00 14.00 18.7 0.135
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And 186.00 188.00 2.00 46.0 0.136
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NM-10-05 18.30 30.49 12.19 90.9 0.496
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including 25.61 28.10 2.49 379.6 2.238
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including 26.55 28.10 1.55 568.2 3.327
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And 108.23 112.80 4.57 27.3 0.174
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And 125.00 134.15 9.15 40.6 0.110
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including 131.10 134.15 3.05 92.2 0.128
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And 245.93 250.00 4.07 114.5 0.311
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including 246.95 248.48 1.53 227.0 0.713
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Nuevo Milenio Geologic Setting
Nuevo Milenio is a low-sulphide epithermal camp that is hosted
by a sequence of intermediate to felsic volcanic flows, tuffs and
breccias within a large collapsed caldera setting. The three
principal northwest-trending vein systems on the property are Dos
Hornos-Veta Tomas, Once Bocas and Chacuaco-Cafetal. Previous
exploration drilling defined the Dos Hornos-Veta Tomas system over
a strike length of approximately 1300 m and the Once Bocas system
over a strike length of 350 m. Surface exploration and drilling has
indicated that the systems are open in all directions.
The Company is currently reviewing its recent exploration
results in context with historic information collected by Cream
Minerals Ltd. Updated geological maps and sections are being
prepared and a summary of that review and near-term exploration
plans at Nuevo Milenio will be described shortly in a news
release.
All diamond drilling for the program has been carried out by
Falcon Perforaciones Mexico, S.A. de C.V.
All assaying has been conducted by ACME Analytical
Laboratories of Vancouver, BC.
Samples were analyzed for 36 elements using four-acid digestion
ICP-ES and for gold and silver using fire assay fusion with ICP-ES
finish. Over-limits for gold and silver were re-assayed using a
gravimetric finish.
Bob Lane, P.Geo is the 43-101
qualified person responsible for the supervision of the drilling
and sampling program and the preparation of this news release.
ROCA MINES INC.
"Scott Broughton"
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Scott E. Broughton - President and CEO
The TSX Venture Exchange does not accept responsibility for the
adequacy or accuracy of this release.
SOURCE Roca Mines Inc.