Midway Gold Updates NI 43-101 Gold Resource at Pan Project, Nevada
2009年11月5日 - 10:00PM
Marketwired
Midway Gold Corp. ("Midway") (TSX VENTURE: MDW)(NYSE Amex: MDW) is
pleased to announce an updated mineral resource estimate for the
Pan Project, Nevada. The new Measured and Indicated mineral
resource estimate is 34.65 million tons grading 0.018 ounce per ton
(opt) gold, using a 0.006 opt cutoff, for a total of 608,700 ounces
of gold. There is an additional Inferred resource of 1.6 million
tons grading 0.017 opt gold, containing 26,500 ounces of gold.
"This resource update increased the size and quality of the Pan
deposit. The gold resource remains open for expansion in several
areas, including Boulders, Nana, Wendy, and Barite Zones, where
Midway has encountered oxide gold in numerous drill holes," said
Alan Branham, President and CEO of Midway Gold Corp. "This Carlin
type gold system is very large at Pan. We have defined near surface
gold in these resources over a two mile strike length. To the south
Midway has defined untested soil geochemical anomalies enriched in
gold, arsenic, and antimony for an additional mile. Drilling is
planned on this 14 square mile project."
Table 1: Pan Gold Resource
Mineral resources reported within an optimal pit shell using a 0.006 opt
gold cutoff (see notes below)
--------------------------------------------------------------------
Category Short Tons Gold Grade Contained Gold
(millions) (opt) (ounces)
--------------------------------------------------------------------
Measured 3.22 0.019 62,100
--------------------------------------------------------------------
Indicated 31.43 0.017 546,600
--------------------------------------------------------------------
Combined M&I 34.65 0.018 608,700
--------------------------------------------------------------------
Inferred 1.60 0.017 26,500
--------------------------------------------------------------------
The previous Pan resource estimate by Mine Development
Associates ("MDA") in 2005(1) included Measured 3.086 million tons
grading 0.019 opt gold, Indicated 15.875 million tons grading 0.019
opt gold, and Inferred 8.3 million tons grading 0.017 opt gold, all
using a 0.01 opt gold cut-off.
This resource estimate has been prepared in accordance with
National Instrument NI 43-101 of the Canadian Securities
Administrators (CSA) and in accordance with CIM Definition
Standards for Mineral Resources and Mineral Reserves. It was
conducted by Midway under the supervision of Don Harris (M.Sc.,
CPG), who is the Qualified Person responsible for the technical
report. This update represents a material change of less than 100%
from the independent resource estimate prepared by MDA in 2005.
The resource estimate is based on verified drill results from
864 exploration holes available up to July 1, 2009. Mineralized
domains were established by interpretation of geological,
structural and assay information on sections and plans. Assays
within the domains were composited into 10 foot intervals. Search
distances and directions were established using spherical
variograms on the composites within the domains. A density factor
of 13.5 cubic feet per short ton (ft3/st) was applied to the
siltstones and shales, 12.3 ft3/st to limestones, and 15.0 ft3/st
to overlying volcanic tuffs. Historic metallurgical test work by
Alta Gold Company and Castleworth Ventures Inc. shows oxide leach
recoveries ranging from 75-94% in column testing. A three
dimensional block model was generated using Surpac®, a commercially
available mine planning software package. Composited assays were
used to estimate tons and gold grades within domains using an
ordinary kriging estimation methodology. Resources reported are
included within a Lerchs-Grossmann (L-G) optimization shell using
an 80% crushed leach gold recovery. The L-G shell is an economic
test that simulates a break-even pit using current mining
costs.
Notes for Measured, Indicated and Inferred Resources
reported:
1. The most likely cut-off grade for this deposit is not known
at this time and must be confirmed by the appropriate economic
studies.
2. Tons and ounces have been rounded and this may result in
minor discrepancies in the totals.
3. The estimated metal content does not include any
consideration of mining, mineral processing, or metallurgical
recoveries.
(1) Gustin, M., 2005, Pan Gold Project Updated Technical Report,
White Pine County, Nevada USA.
A Technical Report by Midway supporting disclosure of this
mineral resource will be filed on Sedar within 45 days of this
press release. The Technical Report updates the project as of July
1, 2009, and outlines work on the resource and progress to
date.
Midway is a gold exploration and development company that
currently has four advance stage gold resources in Nevada and
Washington. Aggressive exploration has resulted in new discoveries
in Nevada. For additional information see the company website at:
http://www.midwaygold.com
This release has been reviewed and approved by Don Harris,
(M.Sc., CPG), a "qualified persons" as that term is defined in
National Instrument 43-101.
ON BEHALF OF THE BOARD
Alan Branham, President and CEO
This press release contains forward-looking statements about the
Company and its business. Forward looking statements are statements
that are not historical facts and include resource estimates. The
forward-looking statements in this press release are subject to
various risks, uncertainties and other factors that could cause the
Company's actual results or achievements to differ materially from
those expressed in or implied by forward looking statements. These
risks, uncertainties and other factors include, without limitation
risks related to fluctuations in gold prices; uncertainties related
to raising sufficient financing to fund the planned work in a
timely manner and on acceptable terms; changes in planned work
resulting from weather, logistical, technical or other factors; the
possibility that results of work will not fulfill expectations and
realize the perceived potential of the Company's properties;
uncertainties involved in the interpretation of drilling results
and other tests and the estimation of gold resources; the
possibility that required permits may not be obtained on a timely
manner or at all; the possibility that capital and operating costs
may be higher than currently estimated and may preclude commercial
development or render operations uneconomic; the possibility that
the estimated recovery rates may not be achieved; risk of
accidents, equipment breakdowns and labor disputes or other
unanticipated difficulties or interruptions; the possibility of
cost overruns or unanticipated expenses in the work program; and
other factors identified in the Company's SEC filings and its
filings with Canadian securities regulatory authorities.
Forward-looking statements are based on the beliefs, opinions and
expectations of the Company's management at the time they are made,
and other than as required by applicable securities laws, the
Company does not assume any obligation to update its
forward-looking statements if those beliefs, opinions or
expectations, or other circumstances, should change.
This press release uses the terms "Measured resources",
"Indicated resources" and "Inferred resources", which are
calculated in accordance with the Canadian National Instrument
43-101 and the Canadian Institute of Mining and Metallurgy
Classification system. Mineral Resources are not Mineral Reserves
and do not have demonstrated economic viability. We advise
investors that while those terms are recognized and required by
Canadian regulations, the U.S. Securities and Exchange Commission
does not recognize them. U.S. investors are cautioned not to assume
that any part or all of mineral deposits in these categories will
ever be converted into reserves. In addition, "Inferred resources"
have a great amount of uncertainty as to their existence, and great
uncertainty as to their economic and legal feasibility. It cannot
be assumed that all or any part of an Inferred Mineral Resource
will ever be upgraded to a higher category. Under Canadian rules,
estimates of Inferred Mineral Resources may not form the basis of
feasibility or pre-feasibility studies, except in rare cases. U.S.
investors are cautioned not to assume that part or all of an
inferred resource exists, or is economically or legally
minable.
Neither the TSX Venture Exchange nor its Regulation Services
Provider (as that term is defined in the policies of the TSX
Venture Exchange) accepts responsibility for the adequacy or
accuracy of this release.
Contacts: Midway Gold Corp. R.J. Smith Toll Free: (877) 475-3642
www.midwaygold.com
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