San Marco Resources Defines Gold-In-Soil Anomalies at La Buena Project, Zacatecas, Mexico
January 12 2011 - 7:00AM
Marketwired
San Marco Resources Inc. (TSX VENTURE: SMN) is providing an
exploration update on its 100% owned 8,549 hectare La Buena
property located approximately 13 kilometers north of Goldcorp's
Penasquito mine in Zacatecas, Mexico. Highlights of the La Buena
exploration program include multiple gold-in-soil anomalies, with a
peak gold value of 0.678 grams per tonne (668 parts per billion).
The anomalously high gold values occur in Caracol formation
metasediments (siltstones and sandstones) over an area roughly 1.25
km x 1.0 km, which are locally intruded by potassic-altered dikes.
San Marco recently completed a phase 1 exploration program on La
Buena property. This program included geological mapping,
prospecting, gridding, soil sampling and an Induced
Potential/Resistivity survey that covered just over 8
line-kilometers. Most of the work focused on an area of weakly
metamorphosed Caracol Formation siltstone and sandstone found in
the central part of the property. Soil sampling within the 1.25 km
x 1.0 km area was completed on grid lines at 100-meter spacing,
with sample intervals every 50 meters. Out of 177 soil samples
collected, forty-five assayed between 50 and 100 ppb gold,
twenty-six assayed between 100 and 200 ppb gold and ten samples
assayed more than 200 ppb gold, with a high assay of 678 ppb gold.
The samples were prepped at the ALS Chemex facility in Zacatecas,
and then sent to ALS Chemex in Vancouver where fire-assay/A.A.
analysis was done on the -80 mesh fraction of each sample.
Four distinct sectors of anomalously high soil gold values
(greater than 100 ppb gold) occur within the area of metasediments
at La Buena as northwest and northeast trending zones. The entire
area of anomalous gold in soils occurs along the fold axis of a
large-scale syncline that strikes east-west, dips to the north and
plunges to the west. The metasediments are comprised of Caracol
Formation siltstone and sandstone that are resistant to weathering
and form hills that emerge out of the Bonanza Valley pediment.
Within the 1.25 km x 1 km gold anomaly, monzonite and granodiorite
subvolcanics intrude the metasediments locally. Assays from 16 rock
chips samples of exposures of granodiorite dikes returned gold
assays ranging from 58 to 247 ppb gold. Two grab samples of
silicified Caracol metasediments returned gold assays of 2.27 and
5.24 gpt gold, and samples from a shallow hand-dug trench returned
10m that averaged 0.509 gpt gold.
"San Marco Resources is proposing to complete additional
exploration, road building, trenching and drilling in 2011," states
Robert Willis, chief executive officer of the company. "The
objectives of the proposed surface exploration programs will be to
not only define drill targets in the area of this soil anomaly, but
also to investigate other areas of the property which exhibit
interesting geology and mineralization."
San Marco expects the results of the 3-D, I.P. / Resistivity
survey carried out over this same zone of gold in soil anomaly, by
the end of January 2011.
Field activities were completed under the direction of Brent
Hendrickson, Vice-President of Exploration for San Marco Resources
who has been working in the region since 2006. The technical
information contained in this press release has been based on
information reviewed by San Marco's President, Robert D. Willis,
P.Eng., a 'qualified person' for the purpose of National Instrument
43-101, Standards of Disclosure for Mineral Projects of the
Canadian Securities Administrators.
Neither the TSX Venture Exchange nor the Investment Industry
Regulatory Organization of Canada accepts responsibility for the
adequacy or accuracy of this release.
Contacts: San Marco Resources Inc. Robert D. Willis Chairman
& CEO 604-813-2606 rdwillis@telus.net San Marco Resources Inc.
Mike Mallard Vice President 604-506-3776 mmallard@sanmarcocorp.com
www.sanmarcocorp.com
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