- Cutoff grade of 15 gpt silver equivalent (Ag Eq*,Global Case): 198.6 million ounces Ag Eq
- Cutoff grade of 30 gpt Ag Eq (Base Case); 159.8 million ounces Ag Eq
- Cut-off grade of 60 gpt Ag Eq (High Grade Case); 100.8 million ounces of Ag Eq
- Cut-off grade of 0.05% WO3; 75.1 million pounds (35,700 tonnes) of tungsten
These resources have been independently estimated by EBA Engineering Consultants Ltd., a Tetra Tech Company utilizing Company Phase I and Phase II drill results and surface sampling programs along with independently-validated historic data. Drilling to date has been relatively widespread in the Main Mineralized Trend (MMT) as well as the independent deposits of Coloradito and Santo Nino. The MMT which includes the Phase I and II drilling areas, has a length of 2.5 kilometres and an average minimum width of over 700 metres (see attached Figures - http://media3.marketwire.com/docs/svl129_F1-2.pdf).
The La Joya resource models separate the deposits into two broad categories based on the predominant mineralogy. The first category is comprised of silver, gold and copper mineralization (AgCu Rich Zone), with lesser amounts of tungsten (WO3), molybdenum (Mo), lead (Pb), and Zinc (Zn). The second category is predominantly tungsten and molybdenum mineralization (Contact Zone) with lesser amounts of Ag, Cu, Au, Pb, and Zn. The mineralogy of these categories is often gradational and overprinted in some areas. The AgCu Rich Zone generally lies spacially above the Contact Zone and generally follows the contours of the underlying intrusive, which outcrops in several areas. The summaries of the resource estimates below show the resources attributed to each of these mineralization categories for each of the current deposits, specifically, the MMT, Santo Nino, and Coloradito.
* Silver equivalency includes silver, gold and copper and excludes
lead, zinc, molybdenum and tungsten values. Ag:Au is 50:1, Ag:Cu is
86:1, based on 5 year historic metal price trends of US$24/oz silver,
US$1200/oz gold, US$3/lb copper. 100% metallurgical recovery is
incorporated until further information is available.**Classified by EBA, A Tetra Tech Company and conforms to NI 43-101, 43-101CP, and CIM definitions for resources. All numbers are rounded. Inferred Resources have been estimated from geological evidence and limited sampling and must be treated with a lower level of confidence than Measured and Indicated Resources. Mineralization boundaries used in the interpretation of the geological model and resource estimate are based on a cutoff grade of 15 gpt Ag Eq using the metal price ratios described above.
* WO3 is based on a standard calculation of tungsten (W) times
1.26. 100% metallurgical recovery is incorporated until further
information is available.** Classified by EBA, A Tetra Tech Company and conforms to NI 43-101, 43-101CP, and CIM definitions for resources. All numbers are rounded. Inferred Resources have been estimated from geological evidence and limited sampling and must be treated with a lower level of confidence than Measured and Indicated Resources. Mineralization boundaries used in the interpretation of the geological model and resource estimate are based on a cutoff grade of 200 ppm W.
Much of the Contact Zone resource is considered to be near-surface and potentially amenable to conventional open pit mining. This zone also contains gold, silver, copper and tin (as defined by geochemistry) which may add secondary value as a result of increased metal content.
These resource estimates are based on recent and historical information collected by SilverCrest Mines and previous operators (Luismin/Goldcorp) from 1979 to present. Phase II Company drilling comprising 78 holes (25,812.65 metres), the 26 holes Phase I Company drilling (5,753.70 metres) in addition to 18 validated historic drillholes (5,907.26 metres) were included in the geological database used as source data for the estimation. Drill hole spacing for the 122 holes (37,473.61 metres) used in the resource estimation is approximately 75 metres.
Based on available data and computer modeling, the current dominant mineralization at La Joya is hosted within numerous sub-vertical, near east-west striking structurally-controlled stockwork zones. These zones are considered to be semi-continuous along strike with true widths ranging from 15 to 50 metres using a cutoff grade of 15 gpt Ag Eq. Eight near-horizontal mantos (semi-continuous disseminated stratabound sulphides) have been modeled within the resource area, which are cross-cut by the stockwork zones and considered the second dominant mineralization. The La Joya deposits are currently interpreted to host three related styles of mineralization. Please refer to News Release dated October 17, 2011 for defined types of mineralization at La Joya.
Initial metallurgical test work as reported in the first Technical Report on the property dated February 20, 2012 suggests that the La Joya deposit may be amenable to conventional flotation processes for copper concentrating with high grade silver and gold components. Significant metallurgical test work is being completed by an independent qualified lab to confirm flotation amenability and fully determine recoveries. The nearby Sabinas Mine (Penoles), which is considered to be a similar deposit style to La Joya, has been in production for many years and is currently producing at an estimated rate of 4,000 tonnes/day and shipping flotation concentrate overseas.
The La Joya Inferred Mineral Resource Estimate was completed using Gemcom GEMS modeling software and is compliant with National Instrument 43-101 and conforms to guidelines and definitions established by the Canadian Institute of Mining and Metallurgy. The resource is based on verified information from historical and recent company sources. The Mineral Resources include block models for the Main Mineralized Trend and Santo Nino located within Cerro Sacrificio, and for Cerro Coloradito. Solid boundaries for the mineralization were interpreted using a minimum 15 Ag Eq cut-off from drill holes composites. Raw assay data was composited to 2 metres and was interpolated into a 5 metre x 5 metre x 5 metre block size model using inverse distance squared methodology with multiple mineralized domains
and search ellipses. The search ellipse ranges were based on geological
field observation, geostatistical analysis and iterative interpolation.
Grade caps of 550 gpt Ag, 5.5 gpt Au and 6.0 % Cu were determined from
histogram analysis and applied after compositing. Grade interpolation
within stratabound manto mineralization utilized an anisotropic search
ellipse oriented along the interpreted trend of bedding with major and
semi-major axis ranges of 75 metres and a minor axis range of 40 metres.
Where manto grades exceeded 120 gpt Ag, 1 gpt Au, or 1% Cu, the search
ellipse was limited to major and semi-major axis ranges of 40 metres,
and a minor axis range of 20 metres. Grade interpolation within
sub-vertical structurally-controlled stockwork zones utilized an
anisotropic ellipse oriented along the interpreted zones with major and
semi-major axis ranges of 80 metres and a minor axis range of 30 metres.
A minimum of 2 composites, to a maximum of 15, were required to
interpolate block grades with no more than 3 composites reporting from
any one drill hole in manto mineralization, or no more than 3 composites
reporting from any one drill hole in the stockwork zones. Based on
limited laboratory and in situ testing, a value of 3 was applied as a
specific gravity for all materials in the model. Using the definitions
in the CIM Definition Standards for Mineral Resources and Mineral
Reserves, all Mineral Resources have been classified as being Inferred
based on the number of samples used for estimation relative to the
deposit area and the overall confidence in interpretation from the
widely spaced drill holes for this style of deposit. Inferred Resources
should not be used as the basis for evaluation of economic viability of
the project. Details of these criteria will be presented in the
Technical Report to be filed on SEDAR.The independent Qualified Persons for the La Joya resource estimation who have reviewed and approved the contents of this news release are James Barr., P.Geo., and Lara Reggin, P.Geo. both from the consulting firm of EBA Engineering Consultants Ltd., a Tetra Tech Company and Ting Lu, P.Eng. (for Metallurgy) from Wardrop Engineering, a Tetra Tech Company. A Technical Report currently being prepared by the Qualified Persons and will adhere to the disclosure requirements of NI 43-101 and will be filed no later than 45 days from the date of this release.
SilverCrest Mines Inc. (TSX-V: SVL; NYSE MKT: SVLC) is a Canadian precious metals producer headquartered in Vancouver, BC. SilverCrest's flagship property is the 100%-owned Santa Elena Mine, located 150 km northeast of Hermosillo, near Banamichi in the State of Sonora, Mexico. The mine is a high-grade, epithermal gold and silver producer, with an estimated life of mine cash cost of US$8 per ounce of silver equivalent (55:1 Ag:Au). SilverCrest anticipates that the 2,500 tonnes per day facility should recover approximately 4,805,000 ounces of silver and 179,000 ounces of gold over the 6.5 year life of the open pit phase of the Santa Elena Mine. A three year expansion plan is underway to double metals production at the Santa Elena Mine and exploration programs are rapidly advancing the definition of a large polymetallic deposit at the La Joya property in Durango State.
FORWARD-LOOKING STATEMENTS
This news release contains "forward-looking statements" within the meaning of Canadian securities legislation and the United States Securities Litigation Reform Act of 1995. Such forward-looking statements concern the Company's anticipated results and developments in the Company's operations in future periods, planned exploration and development of its properties, plans related to its business and other matters that may occur in the future. These statements relate to analyses and other information that are based on expectations of future performance, including silver and gold production and planned work programs. Statements concerning reserves and mineral resource estimates may also constitute forward-looking statements to the extent that they involve estimates of the mineralization that will be encountered if the property is developed and, in the case of mineral reserves, such statements reflect the conclusion based on certain assumptions that the mineral deposit can be economically exploited.
Forward-looking statements are subject to a variety of known and unknown risks, uncertainties and other factors which could cause actual events or results to differ from those expressed or implied by the forward-looking statements, including, without limitation: risks related to precious and base metal price fluctuations; risks related to fluctuations in the currency markets (particularly the Mexican peso, Canadian dollar and United States dollar); risks related to the inherently dangerous activity of mining, including conditions or events beyond our control, and operating or technical difficulties in mineral exploration, development and mining activities; uncertainty in the Company's ability to raise financing and fund the exploration and development of its mineral properties; uncertainty as to actual capital costs, operating costs, production and economic returns, and uncertainty that development activities will result in profitable mining operations; risks related to reserves and mineral resource figures being estimates based on interpretations and assumptions which may result in less mineral production under actual conditions than is currently estimated and to diminishing quantities or grades of mineral reserves as properties are mined; risks related to governmental regulations and obtaining necessary licenses and permits; risks related to the business being subject to environmental laws and regulations which may increase costs of doing business and restrict our operations; risks related to mineral properties being subject to prior unregistered agreements, transfers, or claims and other defects in title; risks relating to inadequate insurance or inability to obtain insurance; risks related to potential litigation; risks related to the global economy; risks related to the Company's status as a foreign private issuer in the United States; risks related to all of the Company's properties being located in Mexico and El Salvador, including political, economic, social and regulatory instability; and risks related to officers and directors becoming associated with other natural resource companies which may give rise to conflicts of interests. Should one or more of these risks and uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described in the forward-looking statements. The Company's forward-looking statements are based on beliefs, expectations and opinions of management on the date the statements are made. For the reasons set forth above, investors should not place undue reliance on forward-looking statements.
The information provided in this news release is not intended to be a comprehensive review of all matters and developments concerning the Company. It should be read in conjunction with all other disclosure documents of the Company. The information contained herein is not a substitute for detailed investigation or analysis. No securities commission or regulatory authority has reviewed the accuracy or adequacy of the information presented.
J. Scott Drever, President
SILVERCREST MINES INC.
Contact:
SilverCrest Mines Inc.
Fred Cooper
(604) 694-1730 ext. 108
Toll Free: 1-866-691-1730
(604) 694-1761 (FAX)
info@silvercrestmines.com
www.silvercrestmines.com
570 Granville Street, Suite 501
Vancouver, British Columbia V6C 3P1
Published at Investorideas.com Newswire
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About MWW Automotive Group (OTCQB: MWWC)
In 2012, virtually all operating parameters exceeded those of 2011
with the exception of the gold grade and gold ounces delivered to the
pad. During the year the cut off grade was reduced from 0.38 gpt Au eq.
to 0.20 gpt Au eq. (applies a 55:1 Ag:Au ratio, metallurgical
recoveries, operating costs and current metal prices) which provided
more reserve tonnes but with a lesser reported gold grade. In addition,
much of the planned mining in 2012 was scheduled in a portion of the
open pit which was of a lower grade when compared to those gold grades
mined in 2011. Gold, along with silver grades are anticipated to
increase in 2013.
About MWW Automotive Group (OTCQB: MWWC)