Toronto, Ontario - 13th January 2012 - Ecometals Limited
(TSX-V:EC)
Ecometals Limited is pleased to announce the summary of 2011
results and plans for continuation of exploration activities
on the Rio Zarza Gold Project in southern Ecuador.
Drilling Highlights
The 2011 drilling campaign on the Rio Zarza Gold Project
comprised 4490.4m in 9 holes collared and completed to target
depth.
The main conclusions that can be drawn from the drilling are as follows:
- the structure of the basin is complex, and includes pre- and post-mineralization structures and episodic influx of sediments and volcanics
- multiple phases of various alteration assemblages of different affinity, including early pervasive hot porphyry-related, early basin hot Misahualli related, retrograde. Epithermal (FdN), and late hot vein type Fruta Andesite related.
- intersection of epithermal banded/colloform quartz clasts in Suarez Fm conglomerate, especially in RZDDH11-07, indicates proximity to an eroded hydrothermal vein system. Clasts are restricted to the Lower Suarez Fm which is defined by increasing volcanic coonent of the sediments and higher calcic alteration. This is one factor that led to the original discovery of Fruta del Norte by Aurelain
- the most significant geological result from the 2011 drilling campaign is considered to be the intersection of epithermal veins and anomalous geochemistry in RZDDH11-04 in the FdN offset target area
- the conceptual model has advanced, including haematite as a palaeo-surface/groundwater indicator, main mineralization event occurring from 1050 to 1250masl, and mineral paragenesis
Results of the drilling continue to be encouraging for discovery of epithermal type gold mineralization analogous to the adjacent Fruta del Norte deposit operated by Kinross.
Stuart Simmons Project Visits
Dr Stuart Simmons, an expert consultant in epithermal
mineralizing systems and geothermal resources, visited the
Rio Zarza project in June and November 2011 for an
independent validation of the exploration programme and
advice on drill targeting. The main points from
recommendations by Dr Simmons are as follows:
- hydrothermal alteration is widespread, and affects all rocks of the Fruta Andesite, Suarez Formation, Misahualli Formation and Zamora Batholith granodiorite, and is dominated by pervasive occurrence of albite, chlorite, calcite, illite, quartz, and epidote
- the pervasive alteration assemblage suggests an early hot hydrothermal event possibly related to quartz feldspar porphyritic apophyses of the Zamora Batholith, but evidence of overprinted epithermal mineralization indicates multi phase hydrothermal activity localised in structural upflow zones, as evidenced by vein adularia in RZDDH10-01 @ 319.3m
- the early alteration assemblage does not provide a clear vector to mineralization due to its pervasive nature, and the evidence of epithermal type mineralisation although encouraging is of local occurrence in the relatively sparse drilling to date
- the northeast and southeast parts of the project remain prospective given the proximity to Fruta del Norte and the relatively small volumes of rock required to constitute a substantial epithermal gold-silver resource. The Zamora Batholith, Suarez Formation, and the Misahuallí Formation, all remain prospective hosts for mineralization
- identification of epithermal calcite-quartz textures in vein structures hosted in Zamora granodiorite in RZDDH11-04 is a major finding, validating the potential of this rock-type to host gold-silver veins, throughout the project, including the central and western areas. Follow up drilling to intersect the same structures in 11-04 at shallower level should be done to test for precious metal mineralization and continuity of the structures
- The Rio Zarza project remains highly prospective for epithermal-style gold-silver mineralization. The northeast quadrant is a high priority for further drill testing. The absence of significant precious metal intercepts in recent drilling in the southeast sector, however, is diminishing the potential for discovery of shallow epithermal mineralization hosted in the Upper Suarez formation, but the potential for mineralization in deep down faulted blocks remains strong, even though it is difficult to target.
Geological Open House
From 7 to 9 December, Ecometals hosted a Geological Open
House at the Rio Zarza camp. Representatives from Kinross,
Ecuacorrientes and Cornerstone attended, with presentations
by the Ecometals technical staff on:
- History of exploration and alluvial gold production at the Rio Zarza Gold Project
- Lithostratigraphy
- Conceptual exploration model
- Alluvial gold provenance using SEM grain morphology and Microprobe analysis
- Regional tectonics and formation of pull-apart structural basins using analogue shear table models
- 3D Modelling of geology, geophysics and geochemistry with targeting parameter matrix
- Environmental planning and controls
- Community relations programme in project impact area
- Core examination RZDDH10-03A and RZDDH11-04 and other significant intersections
- Visit to RZDDH11-09 drilling and Pintado occurrence outcrops with quartz-chlorite-sulphide veins, derived alluvial Au, and epithermal quartz float
The Open House meetings consolidated thinking on the various aspects of the project and provided an opportunity to share ideas with peers in Ecuador and showcase the Ecometals operations. Much of the material presented will form the basis for updated content on the Company Web site and other presentations.
Plans for 2012 Exploration Programme
The exploration programme for 2012 includes the following
main tasks and objectives:
- Compilation of 2011 results pending receipt of geochemistry, XRD and petrography, and other research studies in progress
- Update of exploration conceptual model to refine deep basin drilling strategy
- Continuation of drilling in the Misahuallí-Suarez basin anticipated to start March 2012
Qualified Person
SR McMullan, P.Geo, Vice President of Exploration for
Ecometals Limited, is a qualified person according to
National Instrument 43-101 definition and has prepared the
technical information included in this press release.
Drilling, logging, sampling and dispatch is under the direct
supervision of the Qualified Person and follows industry
standard QA/QC protocols.
About Ecometals
Ecometals Limited is a Canadian-listed mineral exploration
and development company focused on the mineral resources in
Latin America. Ecometals also has significant manganese, iron
and gold projects in Brazil at grass roots exploration and
development planning stages.
Chief Executive Officer William Lamarque said "Our
fundamental exploration philosophy is that well executed
programmes with incremental technical successes will
ultimately lead to economic success, and we believe the
results thus far remain encouraging and directed towards the
ultimate goal.
One additional comment I would like to make is the
exceptional environmental and safety record working in a
remote and hazardous environment, for which the Exploration
Team is commended by the Board of Directors."
Contact Information
Investors: William Lamarque Chief Executive Officer e-mail: wglamarque@ecometalslimited.com |
Andrew Robertson |
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Provider (as that term is defined in the policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or
accuracy of this release."
Safe Harbor Statement: Statements contained in this
release that are not historical facts are forward-looking
statements which involve risk and uncertainties, which could
cause actual results to differ materially from those
expressed in forward-looking statements.
These include risks relating to changes in economic or
environmental conditions and the company's ability to
execute its business model and strategic plans. The company
relies on litigation protection for forward-looking
statements.
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