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Message: Conclusions from ECU's NI43-101 posted on Sedar yesterday

Conclusions from ECU's NI43-101 posted on Sedar yesterday

posted on Jan 28, 2009 02:56PM

19.0 INTERPRETATION AND CONCLUSIONS

With the conclusion of its latest exploration program ECU has been able to conduct a second

mineral resource estimate on its Velardeña properties. ECU has begun to outline a mineral

resource base on the Velardeña properties which has the potential for the discovery of

additional resources and may, with further study, be potentially economic.

Micon has conducted a review of ECU’s second mineral resource estimate for the Velardeña

properties. Micon considers the resource estimate, compiled by ECU and reviewed by Micon,

to have been reasonably prepared and to conform to the current CIM standards and definitions

for estimating resources, as required under NI 43-101 “Standards of Disclosure for Mineral

Projects.” Therefore, Micon accepts ECU’s resource estimate as the basis for ongoing

exploration and development on the Velardeña properties. However, the reader should be

cautioned that mineral resources that are not mineral reserves do not have demonstrated

economic viability

The parameters used to determine the cut-off grades are based on the economical criteria

presented below which were then used to determine which mineralized blocks could be

included in the resource estimate. The lead and zinc mineralization for those blocks located

within the oxide portion of the veins was not taken into account in the estimation of the silver

equivalent cut-off. Blocks below the cut-off grades were reviewed and were occasionally used

in the estimate to preserve continuity. Blocks which were not included in the current estimate

may be included in future estimates should the economic and/or metallurgical criteria change

sufficiently to warrant a review of the cut-off grades. Criteria used for the cut-off grade

determinations include the commodity prices and operating costs established by ECU, and

recoveries for gold, silver, lead and zinc also determined by ECU from its Velardeña operation

and current contracts with smelters. The resource estimates are based on an NSR value cut-off

of US $45/t for the individual veins and US $25/t for the vein packages or veins with average

widths of 2.7 m or more. Table 19.1 summarizes the assumptions used to determine the silver

equivalents.

Table 19.1

Summary of the Assumptions used for the Silver Equivalents

Recovery Sulphides (%)

Commodity Price (US $) High

Lead/Zinc

Veins

Low

Lead/Zinc

Veins

Bulk

Tonnage

Areas

Chicago San Diego

Recovery

Oxides (%)

Gold $775/oz 72 69 65 69 44 78%

Silver $14/oz 60 59 57 65 65 55%

Lead $0.90/lb 67 59 55 54 73 n/a

Zinc $1.28/lb 44 24 46 36 48 n/a

Table provided by ECU Silver Mining Inc.

*Recovery includes allowances for both mill recovery and smelter terms.

Micon’s review of the ECU mineral resource estimate is contained in Tables 19.2 for

Measured, Indicated an Inferred Resources.

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Table 19.2

Summary of the Measured, Indicated and Inferred Mineral Resource Estimate for the Velardeña

Properties as of November 15, 2008

Vein or Grade of Mineralization

Zone

Type of

Mineralization Resource Category Tonnes Gold

(g/t)

Silver

(g/t)

Lead

(%)

Zinc

(%)

Silver

Equivalent (oz)

(Gold + Silver)

Silver

Equivalent (oz)

(Lead & Zinc)

Measured 668,000 3.36 156.3 9,026,000

Indicated 407,000 2.27 172.4 4,587,000

Oxides

Total Measured + Indicated

1,075,000 2.95 162.4 13,614,000

Inferred 379,000 1.68 186.2 3,882,000

Measured 2,205,000 1.84 86.1 0.26 0.45 14,579,000 1,644,000

Indicated 669,000 2.80 205.1 0.91 1.00 8,293,000 1,576,000

Total Measured + Indicated

2,874,000 2.06 113.8 0.41 0.58 22,872,000 3,220,000

Total All

Veins

Sulphides

Inferred 26,141,000 2.07 158.4 1.74 2.11 244,228,000 142,914,000

Grand Measured + Indicated

3,949,000 2.31 127.0 36,486,000 3,220,000

Total Inferred

26,520,000 2.06 158.8 248,109,000 142,914,000

Table provided by ECU Silver Mining Inc.

The above table includes the 50% of the resources attributable to ECU from the San Diego property which is subject to a joint venture agreement between

ECU and Golden Tag.

For the Velardeña properties ECU has currently developed a measured and indicated mineral

resource of 3.9 million tonnes containing 36.5 million ounces of silver equivalent if only gold

and silver are accounted for, and a further 3.2 million ounces of silver equivalent if lead and

zinc are accounted for as well as the gold and silver in the sulphide mineralization. In addition

to the measured and indicated resources ECU has a further inferred resource of 26.5 million

tonnes containing 248 million ounces of silver equivalent if only gold and silver are accounted

for, and a further 142 million ounces of silver equivalent if lead, and zinc are accounted for as

well as the gold and silver in the sulphide mineralization. ECU’s mineral resource estimate

includes its 50% attributable portion of the resources located on the San Diego property where

it has a joint venture agreement with Golden Tag.

Mineral resources that are not mineral reserves do not have demonstrated economic viability.

There are no mineral reserves presently identified on the Velardeña properties.

The stated resources are not materially affected by any known environmental, permitting,

legal, title, taxation, socio-economic, marketing, political or other relevant issues, unless stated

in this report, to the best knowledge of the author. There are no known mining, metallurgical,

infrastructure, or other factors that materially affect this mineral resource estimate, at this time.

In addition to the previously stated mineral resource estimate, the Velardeña properties have

further mineral potential since the true extent of the mineralization within the veins, vein

packages and skarn has not been fully identified. However, since the mineral potential cannot

be estimated to the same accuracy as a mineral resource it must be stated as a range of figures.

To estimate the range for grades, a factor of minus 10% was applied for the downside and plus

10% for the upside potential. In the potential for the extensions of the veins belonging to the

Santa Juana vein system where the grades were used from the drill holes only, the upside was

set at plus 50%. The upside potential factor is larger than the downside potential factor

because of the possibility that the mineralized zones will be similar in nature to, and as

extensive as, the main veins on the Velardeña properties. Consequently, a significant

130

difference between the grades obtained from drilling and the higher grades indicated from

stoping would be expected.

Contributing to the upside potential on the Velardeña properties is the possibility that

additional veins may be discovered. While it is easy to determine the extent of the veins

which outcrop on surface, there is the possibility that a number of hidden veins exist on the

property which do not have a surface expression and would only be discovered through

diligent exploration and, in some cases, discovered while drifting to intersect known veins

underground.

Table 19.3 summarizes the mineral potential ranges for the Velardeña properties

Table 19.3

Summary of the Mineral Potential Ranges for the Velardeña Properties

Mineral

Potential

Range

Mineral

Potential

(X000 t)

Average Gold

Grade (g/t)

Average Silver

Grade (g/t)

Potential Contained

Silver Equivalent (X000

oz) (Gold + Silver)

Potential Contained Silver

Equivalent (X000 oz) (Gold,

Silver, Lead, Zinc and Copper)

Minimum 41,692 2.83 207 569,524 747,982

Maximum 87,186 2.06 167 930,400 1,252,487

Table provided by ECU Silver Mining Inc.

The mineral potential of the Velardeña properties is conceptual in nature and there has been

insufficient exploration conducted within the properties to define a mineral resource for these

areas. It is also uncertain if further exploration will result in targets being delineated as

mineral resources. Thus ECU is proposing to continue its multi-phase exploration program,

started in 2008, to test the mineral potential of the properties.

Micon believes that the land controlled at the Velardeña properties by ECU is highly

prospective both along strike and down dip of the existing mineralization and that further

resources could be discovered with additional exploration and development.

19.1 CONCLUSIONS

ECU has been conducting exploration drilling and underground drifting on the mineralization

on the Velardeña properties which have had some historical and recent mining conducted on

the various mineralized veins. In the case of the Velardeña properties, although a number of

mineralized areas have seen exploitation in the past and more recently, the veins on the

properties remain open in both their lateral and down dip projections. ECU has continued to

conduct extensive exploration drilling and underground drifting along the mineralization on

the Velardeña properties and from the results has been able to complete its second mineral

resource estimate.

The resources reported herein by ECU for the Velardeña properties were reviewed and

accepted by Micon as constituting the basis for further exploration and evaluation programs on

the properties. It is Micon’s opinion that the resources for the Velardeña properties conform

to the current CIM standards and definitions for estimating resources as required under NI 43-

101 regulations.

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At this time the exploration potential of the Velardeña properties remains conceptual.

However the geology, extent of the surface expression of the main veins and potential to find

further hidden veins within the properties provide reason to believe that the conceptual

mineral potential could be significant. Prior to ECU’s involvement, the Velardeña properties

had never been completely subjected to modern exploration concepts and technology and to

date ECU has been able to expand upon the known areas of mineralization and discover new

areas

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