Contango ORE, Inc. (OTCBB:CTGO.PK) announced today favorable preliminary
metallurgical results from the Peak zone at its approximately
+750,000-acre Tetlin gold-copper-silver project in east-central Alaska.
The road–accessible Peak Zone, discovered in 2012, covers approximately
40 acres and, at 0.5 grams of gold per tonne (gpt), carries indicated
resources of 5,970,000 tonnes grading 3.46 gpt gold, 11.8 gpt silver and
0.25% copper and inferred resources of 3,850,000 tonnes grading 2.07 gpt
gold, 14.28 gpt silver and 0.23% copper.
Contango selected a total of three samples for metallurgical testing.
All samples were coarse rejects from the geochemistry work done by ALS
Chemex and Acme Labs on drill core samples drilled at the Tetlin deposit
during 2013. Original geochemical results for these samples are
presented in Table 1. Sample A was selected as a representative of
mineralization with high gold content accompanied by low silver and low
copper content. Sample B was selected as a representative of
mineralization with low gold content accompanied by high silver and high
copper content. Sample C was selected as a representative of
mineralization with high gold content accompanied by high silver and
high copper content.
Table 1: Original Peak Zone Metallurgical Sample Geochemistry
|
Sample
|
|
|
Sample A
|
|
|
Sample B
|
|
|
Sample C
|
Type
|
|
|
Au
|
|
|
Ag/Cu
|
|
|
Au/Ag/Cu
|
Hole
|
|
|
TET13117
|
|
|
TET13077
|
|
|
TET13063
|
From (m)
|
|
|
130.76
|
|
|
158.19
|
|
|
140
|
To (m)
|
|
|
133.81
|
|
|
161.24
|
|
|
142.95
|
Au_ppm
|
|
|
150
|
|
|
0.03
|
|
|
23.2
|
Ag_ppm
|
|
|
3.3
|
|
|
235
|
|
|
45.4
|
Cu_ppm
|
|
|
1,670
|
|
|
58,700
|
|
|
12,900
|
SRK Consulting of Anchorage, Alaska, was retained to develop and oversee
a metallurgical testing program that included a mineralogy study on gold
deportment, gravity concentration and flotation of the gravity
concentration tails. This work was carried out by SGS Metallurgical
Operations of Vancouver, British Columbia. Two-kilogram charges of each
sample were subject to grinding, gravity separation and rougher
flotation of the gravity tails. The -10 mesh (<2000 microns) material
was ground to a target grind time in a rod mill, and then processed
through a gravity concentrator (Knelson machine). The concentrate was
upgraded with a Mozley table and the combined Knelson and Mozley tails
(gravity tails) became rougher flotation feed. The gravity concentrate
was assayed for gold and silver. In addition to the above, a
mineralogical examination was performed with X-Ray diffraction (XRD),
Quantitative Evaluation by Scanning Electron Microscope (QEMSCAN),
optical microscopy and chemical analysis to determine the overall
mineral assemblage present in the samples, identify the gold and
silver-bearing minerals present and complete a mass balance of
microscopic gold and silver.
Results of this work are presented in graphical form and indicate that
all samples achieved consistently high metallurgical recovery across the
primary grind sizes that ranged from 49 to 115 microns. The high
flotation concentrate mass pulled in all tests is a good reflection of
the sample's sulfide content. (See graph: Average Total Metal Recovery &
Rougher Concentrate Mass Pull.)
The proportion of contained gold recovered by gravity methods ranged
from 8% to 30% with the lowest gravity recovery in the high copper
bearing sample (Sample B) with progressively higher percentages of gold
in the gravity concentrate as gold grade increased in Sample C and
Sample A. (See graph: Gold – Gravity, Flotation and Combined and
Concentrate Grade.)
Primary sulfides identified in the analysis were pyrrhotite and
chalcopyrite with lesser amounts of arsenopyrite, silver-bearing
minerals, sphalerite and native gold. Primary silicate minerals include
quartz, calcite, chlorite, potassium feldspar, amphibole and pyroxene.
Abundant visible gold was observed in polished sections of Sample A and
C (Table 2). Sample B, containing low gold head grade, returned only one
grain of visible gold.
Table 2: Gold and Silver Assay and Grain Count Summary
|
Sample #
|
|
|
Gold Grade (g/t)
|
|
|
Silver Grade (g/t)
|
|
|
# of Gold Grains
|
Sample A
|
|
|
81.5
|
|
|
5.3
|
|
|
741
|
Sample B
|
|
|
0.15
|
|
|
227
|
|
|
1
|
Sample C
|
|
|
22.5
|
|
|
38.8
|
|
|
873
|
In conclusion, preliminary metallurgical tests conducted on drill core
samples from the Peak zone indicate that both gold and sulfide minerals
respond to standard gravity and froth flotation treatment and that gold
is not refractory in nature.
The Company also announced today that it filed its Form 10-Q for the
quarter ended March 31, 2014 with the Securities and Exchange Commission.
The Company reported a net loss of $0.7 million or $0.18 per basic and
diluted share for the three months ended March 31, 2014 compared to a
loss of $0.5 million or $0.19 per basic and diluted share for the same
period last year.
For the nine months ended March 31, 2014, the Company reported a net
loss of $8.5 million or $2.24 per basic and diluted share compared to a
net loss of $5.9 million or $2.32 per basic and diluted share for the
same period last year.
On January 23, 2014, the Company announced that it had initiated the
exploration and evaluation of strategic alternatives aimed at enhancing
shareholder value, and retained Petrie Partners, LLC as its financial
advisor to assist the Company in connection with its strategic review.
The Company is conducting a process to solicit third party proposals for
the sale, merger, joint venture or other business combination of the
Company. The Company has not made a decision to pursue any specific
strategic transaction or any other strategic alternative. While the
Company will consider all commercially reasonable strategic
alternatives, there can be no assurance that a transaction will be
consummated on terms acceptable to the Board of Directors of the
Company, or at all.
CORE is a Houston-based company that engages in exploration in Alaska
for gold and associated minerals and rare earth elements. Additional
information can be found on our web page at www.contangoore.com.
This press release contains forward-looking statements regarding CORE
that are intended to be covered by the safe harbor "forward-looking
statements" provided by the Private Securities Litigation Reform Act of
1995, based on CORE’s current expectations and includes statements
regarding future results of operations, quality and nature of the asset
base, the assumptions upon which estimates are based and other
expectations, beliefs, plans, objectives, assumptions, strategies or
statements about future events or performance (often, but not always,
using words such as "expects", “projects”, "anticipates", "plans",
"estimates", "potential", "possible", "probable", or "intends", or
stating that certain actions, events or results "may", "will", "should",
or "could" be taken, occur or be achieved). Forward-looking statements
are based on current expectations, estimates and projections that
involve a number of risks and uncertainties, which could cause actual
results to differ materially from those, reflected in the statements.
These risks include, but are not limited to: the risks of the
exploration and the mining industry (for example, operational risks in
exploring for, developing mineral reserves; risks and uncertainties
involving geology; the speculative nature of the mining industry; the
uncertainty of estimates and projections relating to future production,
costs and expenses; the volatility of natural resources prices,
including prices of gold and rare earth elements; the existence and
extent of commercially exploitable minerals in properties acquired by
CORE; potential delays or changes in plans with respect to exploration
or development projects or capital expenditures; the interpretation of
exploration results and the estimation of mineral resources; the loss of
key employees or consultants; health, safety and environmental risks and
risks related to weather and other natural disasters); uncertainties as
to the availability and cost of financing; inability to realize expected
value from acquisitions; inability of our management team to execute its
plans to meet its goals; and the possibility that government policies
may change or governmental approvals may be delayed or withheld,
including the inability to obtain any mining permits. Additional
information on these and other factors which could affect CORE’s
exploration program or financial results are included in CORE’s other
reports on file with the Securities and Exchange Commission. Investors
are cautioned that any forward-looking statements are not guarantees of
future performance and actual results or developments may differ
materially from the projections in the forward-looking statements.
Forward-looking statements are based on the estimates and opinions of
management at the time the statements are made. CORE does not assume any
obligation to update forward-looking statements should circumstances or
management's estimates or opinions change.
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