Robert Friedland, Executive Chairman and CEO of Ivanhoe Mines (TSX:
IVN)(NYSE: IVN)(NASDAQ: IVN) and Chairman of Altynalmas Gold, and
David Woodall, President and CEO of Altynalmas Gold, today
announced a 50% increase in Indicated Mineral Resources as part of
an update of the NI 43-101 Mineral Resources for the Bakyrchik
Deposit, which is part of the company's Kyzyl Gold Project in
northeastern Kazakhstan. Ivanhoe Mines owns 50% of Altynalmas Gold.
Based on drilling results available to December 1, 2010,
internationally recognized minerals industry consulting firm Roscoe
Postle Associates Inc. (RPA) now estimates that the deposit
contains 22.16 million tonnes of Indicated Mineral Resources
grading 8.72 grams/tonne (g/t) gold, containing 6.2 million ounces
of gold, and an additional 9.67 million tonnes of Inferred Mineral
Resources grading 7.43 g/t gold, containing 2.3 million ounces
(Table 1). The reported Mineral Resources include Mineral Reserves
previously disclosed on June 30, 2010.
Table 1. Mineral Resource Estimate for the Bakyrchik Deposit as of December
1, 2010 - Inclusive of Mineral Reserves
---------------------------------------------------------------------------
---------------------------------------------------------------------------
Tonnes Gold Grade Contained Gold
Resource Classification (million) (g/t) (ounces)
---------------------------------------------------------------------------
Indicated 22.16 8.72 6,217,000
Inferred 9.67 7.43 2,311,000
---------------------------------------------------------------------------
---------------------------------------------------------------------------
Notes:
1. CIM Definition Standards have been followed for classification of
Mineral Resources.
2. Mineral Resources are reported at a cut-off of 3.0 grams per tonne
gold.
3. Mineral Resources were estimated using an average long-term gold price
of US$1,000 per ounce and an assumed recovery of 87%.
4. The Mineral Resource estimate uses drill hole data available as of
December 1, 2010.
5. Mineral Resources are not Mineral Reserves and do not have
demonstrated economic viability.
6. Totals may not add correctly due to rounding.
Altynalmas is continuing its drilling program designed to expand
and upgrade the NI 43-101-compliant resources and reserves at the
Kyzyl Project. A total of 78,020 metres were drilled during 2010
and an updated Mineral Resource estimate based on all 2010 drilling
is expected in March 2011. An additional 25,000 metres are planned
to be completed during 2011 on the recently enlarged Bakyrchik
Mining Lease and a further 50,000 metres are planned to begin the
delineation of the satellite deposits on the surrounding
exploration licence.
Recently assayed significant drill intercepts of high-grade gold
mineralization, which approximate true widths, included:
-- 11 metres at 15.43 grams per tonne (g/t) gold and 11 metres at 12.06
g/t gold in Lens 12; and,
-- 18 metres at 6.15 g/t gold and 11 metres at 8.17 g/t gold in Lens 9.
A complete summary of recent drill results is included in
accompanying tables.
Kyzyl Gold Project feasibility study proceeding on schedule
The Kyzyl Gold Project contains the Bakyrchik and Bolshevik gold
deposits, as well as a number of satellite deposits.
A pre-feasibility study for the Kyzyl Project was completed in
August 2010. The Bakyrchik Deposit's definitive feasibility study,
which began in September 2010, is expected to be completed in the
second quarter of 2011.
"The increase in the Bakyrchik Mineral Resource base,
particularly the 50% increase in Indicated Mineral Resources, bodes
well for the estimation of Reserves in the upcoming feasibility
study," Mr. Woodall said.
"The expected improvement in the economics of the Kyzyl Gold
Project, combined with the continuation of the very encouraging
drilling results, should provide the basis for the commencement of
construction in 2011 of a 1.5-million-tonne per year fluidized-bed
roasting plant to process the project's refractory ores."
The gold deposits at the Kyzyl Gold Project consist of a series
of mineralized lenses, or lodes, lying within a large shear zone.
Gold mineralization is hosted within sheared carbonaceous sediments
of the fault zones and principally is contained within sulphide
mineralization occurring in association with quartz stockworks,
which crosscut and parallel the foliation of the sediments.
Update on estimation of Bakyrchik Deposit's Mineral
Resources
The Mineral Resources at the Bakyrchik Deposit are hosted in
seven mineralized lenses located along the Kyzyl shear zone.
Collectively, the lenses measure 2,400 metres along strike by 1,700
metres down dip, extending from surface to a depth of 1,000 metres.
The reported Mineral Resources by lens at varying cut-off grades,
as shown in Table 2, are inclusive of Mineral Reserves previously
disclosed on June 30, 2010.
The Bakyrchik digital drill-hole database includes 2,372
historic holes totalling 658,954 metres of core plus 156 recent
holes drilled by Altynalmas, totalling 62,591 metres of core. Both
data sets were verified and validated by RPA and are acceptable to
estimate Mineral Resources.
A set of cross-sections and plan views were interpreted to
construct three-dimensional wireframe models of the mineralized
lenses using the descriptive logs, a minimum grade of 3.0 g/t gold
and a minimum thickness of 1.5 metres. More than 73% of the
intersections have a true thickness of four metres or greater.
Prior to compositing to two-metre lengths, high grades were cut to
35 g/t gold. Gold grade was estimated using ordinary kriging. Block
size is five metres by five metres by five metres. Bulk density is
2.7 t/m(3). Classification into the Indicated and Inferred
categories was completed manually for each lens based on drill-hole
spacing, gold grade continuity and geometric continuity.
Table 2. Mineral Resource Estimate for the Bakyrchik Deposit as of December
1, 2010 - Inclusive of Mineral Reserves
---------------------------------------------------------------------------
INDICATED RESOURCES INFERRED RESOURCES
---------------------------------------------------------------------------
Gold Contained Gold Contained
Lens Cut-off Tonnage Grade Gold Tonnage Grade Gold
---------------------------------------------------------------------------
(Au g/t) (x1,000) (g/t) (oz x1,000) (x1,000) (g/t) (oz x1,000)
---------------------------------------------------------------------------
Lens 1 greater than
=6.0 11,799 10.40 3,944 3,972 8.74 1,116
---------------------------------------------------------------------
greater than
=5.0 12,932 9.97 4,145 4,660 8.25 1,236
---------------------------------------------------------------------
greater than
=4.0 13,735 9.65 4,262 5,469 7.71 1,355
---------------------------------------------------------------------
greater than
=3.0 14,237 9.44 4,320 6,132 7.26 1,431
---------------------------------------------------------------------
greater than
=2.0 14,366 9.38 4,330 6,338 7.10 1,447
---------------------------------------------------------------------------
Lens 9 greater than
=6.0 1,836 9.67 571 597 8.20 158
---------------------------------------------------------------------
greater than
=5.0 2,344 8.77 661 741 7.68 183
---------------------------------------------------------------------
greater than
=4.0 2,768 8.11 722 876 7.18 202
---------------------------------------------------------------------
greater than
=3.0 3,143 7.57 764 963 6.85 212
---------------------------------------------------------------------
greater than
=2.0 3,338 7.28 781 1,106 6.28 223
---------------------------------------------------------------------------
Lens greater than
12 =6.0 2,280 10.16 745 1,649 9.90 525
---------------------------------------------------------------------
greater than
=5.0 2,716 9.42 822 1,814 9.50 554
---------------------------------------------------------------------
greater than
=4.0 3,170 8.71 887 2,105 8.77 594
---------------------------------------------------------------------
greater than
=3.0 3,507 8.21 926 2,381 8.16 625
---------------------------------------------------------------------
greater than
=2.0 3,637 8.01 936 2,436 8.03 629
---------------------------------------------------------------------------
Lenses greater than
4, 5 & =6.0 13 6.31 3 2 6.08 0
7 ---------------------------------------------------------------------
greater than
=5.0 52 5.65 9 33 5.52 6
---------------------------------------------------------------------
greater than
=4.0 232 4.64 35 71 4.92 11
---------------------------------------------------------------------
greater than
=3.0 476 4.08 62 92 4.64 14
---------------------------------------------------------------------
greater than
=2.0 598 3.78 73 97 4.54 14
---------------------------------------------------------------------------
Lens 8 greater than
=6.0 337 7.09 77 84 9.45 25
---------------------------------------------------------------------
greater than
=5.0 484 6.60 103 91 9.09 27
---------------------------------------------------------------------
greater than
=4.0 660 6.04 128 103 8.62 28
---------------------------------------------------------------------
greater than
=3.0 800 5.60 144 106 8.43 29
---------------------------------------------------------------------
greater than
=2.0 876 5.33 150 108 8.35 29
---------------------------------------------------------------------------
All greater than
Lenses =6.0 16,266 10.21 5,340 6,304 9.00 1,824
---------------------------------------------------------------------
greater than
=5.0 18,528 9.64 5,741 7,339 8.50 2,006
---------------------------------------------------------------------
greater than
=4.0 20,565 9.13 6,034 8,624 7.90 2,191
---------------------------------------------------------------------
greater than
=3.0 22,163 8.72 6,217 9,675 7.43 2,311
---------------------------------------------------------------------
greater than
=2.0 22,815 8.55 6,271 10,085 7.22 2,342
---------------------------------------------------------------------------
Notes:
1. CIM Definition Standards have been followed for classification of
Mineral Resources.
2. Mineral Resources are reported at a cut-off of 3.0 grams per tonne
gold.
3. Mineral Resources were estimated using an average long-term gold price
of US$1,000 per ounce and an assumed recovery of 87%.
4. The Mineral Resource estimate uses drill hole data available as of
December 1, 2010.
5. Mineral Resources are not Mineral Reserves and do not have
demonstrated economic viability.
6. Totals may not add correctly due to rounding.
Quality Assurance and Quality Control - Altynalmas Drilling
Exploration core was drilled HQ size (63.5-mm-diameter core)
using western drill strings. Triple tube HQ3 (61.1-mm-diameter
core) was used within, and on the shoulders, of the mineralized
zone. Assaying of most samples was completed at ALS Minerals, an
independent ISO-credited laboratory in Vancouver, Canada, using
fire assay fusion, followed by a gravimetric analysis procedure. A
total of 205 samples located within the lens wireframe models were
assayed at the mine laboratory using a fire assay method. These
samples are from the more recent drilling and represent less than
2% of the total number of assays within mineralized wireframe
models.
Quality assurance and quality control is independently monitored
and audited by RPA with a quality-control program, which includes
the use of matrix matched assay standard reference samples, blanks,
duplicates, repeats and internal ALS Minerals quality-assurance
procedures.
Qualified Person - Resource
The Mineral Resources for the Bakyrchik Deposit disclosed in
this news release have been estimated by David Ross, P.Geo., an
employee of RPA and independent of Ivanhoe Mines. Mr. Ross is a
"Qualified Person" for the purpose of National Instrument 43-101.
The Mineral Resources have been classified in accordance with CIM
Definition Standards for Mineral Resources and Mineral Reserves,
(December 2005). Mr. Ross has read and approved the contents of
this news release as it pertains to the disclosed mineral resource
estimate.
New Altynalmas drilling results continue to correlate well with
Soviet-era results
The assay results from resource-upgrade drilling of Bakyrchik
Deposit lenses 12, 9 and 1 are listed below in Tables 3, 4 and 5
respectively and also are shown on accompanying illustrations.
Intersection widths in recent drilling on lenses 12 and 9 correlate
well with the results of the earlier, Soviet-era drilling results.
Drilling also produced some significantly higher grades,
particularly in Lens 12. Recent drilling in the main Lens 1 area
was focused on the periphery of the lens; as such, the widths and
grades are lower than those previously released.
Initial exploration drilling results from the Globoki Log area,
located on the Mining Lease immediately east of the main Bakyrchik
Deposit, are presented in Table 4.
Table 3. Bakyrchik Deposit Drill Results: Lens 12, November 23, 2010
---------------------------------------------------------------------------
From To Interval Length Gold Grade
Hole-ID Section (m) (m) (m) (g/t)
---------------------------------------------------------------------------
BAK-084-2010 434500 369.0 375.0 6.0 17.51
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-086-2010 434500 324.0 327.0 3.0 4.37
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-089-2010 434500 275.0 278.0 3.0 5.37
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-082-2010 434525 297.0 302.0 5.0 21.66
---------------------------------------------------------------------------
includes 298.0 301.0 3.0 31.45
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-095-2010 434525 356.0 363.0 7.0 18.63
---------------------------------------------------------------------------
includes 358.0 362.0 4.0 25.64
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-067-2010 434550 269.0 274.0 5.0 2.83
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-081-2010 434550 324.0 332.0 8.0 11.06
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-087-2010 434550 343.0 354.0 11.0 15.43
---------------------------------------------------------------------------
includes 345.0 350.0 5.0 24.80
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-068-2010 434575 224.0 228.0 4.0 8.02
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-092-2010 434575 373.0 381.0 8.0 9.34
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-076-2010 434600 180.0 188.0 8.0 5.66
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-103-2010 434600 241.0 251.0 10.0 9.79
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-111-2010 434600 209.0 218.0 9.0 10.98
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-099-2010 434625 293.0 302.0 9.0 14.82
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-101-2010 434625 344.0 347.0 3.0 6.23
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-107-2010 434625 271.0 282.0 11.0 12.06
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-079-2010 434650 177.0 185.0 8.0 25.27
---------------------------------------------------------------------------
includes 178.0 184.0 6.0 31.56
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-093-2010 434650 322.0 326.0 4.0 9.85
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-105-2010 434650 240.0 251.0 11.0 11.48
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-109-2010 434650 267.0 280.0 13.0 10.45
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-071-2010 434675 207.0 215.0 8.0 11.51
---------------------------------------------------------------------------
Table 4. Bakyrchik Deposit Drill Results: Lens 9, November 23, 2010
---------------------------------------------------------------------------
From To Interval Length Gold Grade
Hole-ID Section (m) (m) (m) (g/t)
---------------------------------------------------------------------------
BAK-091-2010 436250 258.0 261.0 3.0 5.35
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-088-2010 436275 312.0 316.0 4.0 12.33
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-090-2010 436325 304.0 316.0 12.0 10.03
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-085-2010 436375 275.0 283.0 8.0 8.00
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-083-2010 436475 213.0 217.0 4.0 10.18
---------------------------------------------------------------------------
and 233.0 240.0 7.0 7.36
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-080-2010 436500 256.0 274.0 18.0 6.15
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-074-2010 436525 229.0 240.0 11.0 8.17
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-077-2010 436550 260.0 269.0 9.0 4.82
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-075-2010 436575 226.0 229.0 3.0 4.44
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-078-2010 436600 251.0 254.0 3.0 4.08
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-072-2010 436625 212.0 217.0 5.0 7.63
---------------------------------------------------------------------------
and 220.0 223.0 3.0 5.09
---------------------------------------------------------------------------
Table 5. Bakyrchik Deposit Drill Results: Lens 1, November 23, 2010
---------------------------------------------------------------------------
From To Interval Length Gold Grade
Hole-ID Section (m) (m) (m) (g/t)
---------------------------------------------------------------------------
BAK-059-2010 435125 441.0 444.0 3.0 2.27
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-049-2010 435425 463.0 466.0 3.0 2.62
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-044-2010 435450 322.0 326.0 4.0 3.99
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-055-2010 435525 252.0 258.0 6.0 5.70
---------------------------------------------------------------------------
and 337.0 340.0 3.0 2.73
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-052-2010 435550 268.0 272.0 4.0 4.40
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-056-2010 435600 307.0 310.0 3.0 2.78
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-063-2010 435600 255.0 259.0 4.0 8.16
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-060-2010 435625 257.0 261.0 4.0 6.00
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-065-2010 435750 198.0 202.0 4.0 3.79
---------------------------------------------------------------------------
Table 6. Bakyrchik Deposit Drill Results: Globoki Log, November 23, 2010
---------------------------------------------------------------------------
From To Interval Length Gold Grade
Hole-ID Section (m) (m) (m) (g/t)
---------------------------------------------------------------------------
BAK-098-2010 436800 200.0 203.0 3.0 2.33
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-106-2010 437200 192.0 195.0 3.0 4.69
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-110-2010 437300 209.0 212.0 3.0 4.79
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-108-2010 437350 190.0 193.0 3.0 3.63
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-104-2010 437600 282.0 285.0 3.0 5.36
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-112-2010 438400 203.0 206.0 3.0 10.21
---------------------------------------------------------------------------
---------------------------------------------------------------------------
BAK-117-2010 438450 146.0 150.0 4.0 4.16
---------------------------------------------------------------------------
and 162.0 179.0 17.0 30.43
---------------------------------------------------------------------------
includes 163.0 178.0 15.0 33.11
---------------------------------------------------------------------------
Notes:
1. Intersection assays are a composite of one-metre assays calculated
from interval-weighted assays over the intersection length using a
2.0 g/t gold cut-off.
2. The included intervals are significantly higher in tenor and exceed
15.0 g/t gold within the 2.0 g/t gold cut-off intervals.
3. No high assay values have been cut.
4. Interval widths generally are equivalent to true widths.
5. The following recently assayed holes did not intersect significant
mineralization:
---------------------------------------------------------------------------
Lens Hole-ID Section
---------------------------------------------------------------------------
12 BAK-094-2010 434600
---------------------------------------------------------------------------
1 BAK-047-2010 435250
---------------------------------------------------------------------------
1 BAK-066-2010 435775
---------------------------------------------------------------------------
1 BAK-070-2010 435875
---------------------------------------------------------------------------
Globoki Log BAK-096-2010 436850
---------------------------------------------------------------------------
Globoki Log BAK-097-2010 436900
---------------------------------------------------------------------------
Qualified Person - Disclosure
Disclosures of a scientific or technical nature in this release
have been reviewed by David Woodall, Chief Executive Officer of
Altynalmas Gold Ltd. and a Qualified Person as defined by National
Instrument 43-101.
About Ivanhoe Mines
Ivanhoe Mines (TSX: IVN)(NYSE: IVN)(NASDAQ: IVN) is an
international mining company with operations focused in the Asia
Pacific region. Assets include the company's 66% interest in the
Oyu Tolgoi copper-gold mine development project in southern
Mongolia; its 57% interest in Mongolian coal miner SouthGobi
Resources (TSX: SGQ)(HK: 1878); a 62% interest in Ivanhoe Australia
(ASX: IVA)(TSX: IVA), a copper-gold-uranium-molybdenum-rhenium
exploration and development company; and a 50% interest in
Altynalmas Gold Ltd., a private company developing the Kyzyl Gold
Project in Kazakhstan.
Ivanhoe Mines' shares are listed on the New York, NASDAQ and
Toronto stock exchanges under the symbol IVN.
Forward-looking statements
Certain statements made herein, including statements relating to
matters that are not historical facts and statements of our
beliefs, intentions and expectations about developments, results
and events which will or may occur in the future, constitute
"forward-looking information" within the meaning of applicable
Canadian securities legislation and "forward-looking statements"
within the meaning of the "safe harbor" provisions of the United
States Private Securities Litigation Reform Act of 1995.
Forward-looking information and statements are typically identified
by words such as "anticipate," "could," "should," "expect," "seek,"
"may," "intend," "likely," "plan," "estimate," "will", "believe"
and similar expressions suggesting future outcomes or statements
regarding an outlook. These include, but are not limited to,
statements respecting Altynalmas Gold's planned exploration and
development work; the planned drilling; and the timing for
completion of the planned prefeasibility study.
All such forward-looking information and statements are based on
certain assumptions and analyses made by Ivanhoe Mines' management
in light of their experience and perception of historical trends,
current conditions and expected future developments, as well as
other factors management believes are appropriate in the
circumstances. These statements, however, are subject to a variety
of risks and uncertainties and other factors that could cause
actual events or results to differ materially from those projected
in the forward-looking information or statements. Important factors
that could cause actual results to differ from these
forward-looking statements include those described under the
heading "Risks and Uncertainties" elsewhere in the company's most
recent MD&A. The reader is cautioned not to place undue
reliance on forward-looking information or statements.
This release contains references to estimates of mineral
reserves and resources. The estimation of reserves and resources is
inherently uncertain and involves subjective judgments about many
relevant factors. The accuracy of any such estimates is a function
of the quantity and quality of available data, and of the
assumptions made and judgments used in engineering and geological
interpretation, which may prove to be unreliable. There can be no
assurance that these estimates will be accurate or that such
mineral reserves and mineral resources can be mined or processed
profitably. Mineral resources that are not mineral reserves do not
have demonstrated economic viability.
For company maps, please go to:
http://media3.marketwire.com/docs/ivn221.pdf.
Contacts: Ivanhoe Mines Ltd. - Investors Bill Trenaman
+1.604.688.5755 Ivanhoe Mines Ltd. - Media Bob Williamson
+1.604.331.9830 www.ivanhoemines.com
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