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ATM Atacama Pacific Gold Corporation

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Share Name Share Symbol Market Type
Atacama Pacific Gold Corporation TSXV:ATM TSX Venture Common Stock
  Price Change % Change Share Price Bid Price Offer Price High Price Low Price Open Price Shares Traded Last Trade
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Atacama Pacific Announces Continued Positive Metallurgical Results From Cerro Maricunga Oxide Gold Project

09/06/2014 9:46pm

Marketwired Canada


Atacama Pacific Gold Corporation (TSX VENTURE:ATM) ("Atacama Pacific") is
pleased to report the results from six column percolation leach tests completed
on gold mineralization from its Cerro Maricunga oxide gold deposit located in
northern Chile. The tests were undertaken to compare the gold recoveries from
mineralization crushed to different sizes and to examine the impact of crushing
using high pressure grind rolls ("HPGR") on recoveries. The test work also
examined the impact of reducing the amount of lime used to control leach
solution pH.


Table 1 summarizes the results of the column tests. Highlights from the current
test work include:




--  Only a minor decrease in gold recoveries was observed when increasing
    crush size to 105 mm. 
--  HPGR crushed mineralization did not achieved significantly higher gold
    recoveries compared to conventionally crushed material. 
--  Majority of leachable gold was extracted in the first twenty days at
    crush sizes less than 21 mm. 

Table 1 - Summary of Column Test Results, Cerro Maricunga Deposit           
----------------------------------------------------------------------------
Test    Head     Gold Crush             Lime +                              
#      Grade Recovery  Size  NaCN(1) Cement(2)  Note                        
      ----------------------------------------                              
        (g/t         (P80 =                                                 
         Au)      (%)   mm)   (kg/t)    (kg/t)                              
----------------------------------------------------------------------------
68801A  0.33       72 105.0     0.96       1.0  Conventionally crushed      
----------------------------------------------------------------------------
68801B  0.33       74  21.0     1.96       1.8  Conventionally crushed      
----------------------------------------------------------------------------
68811   0.44       83   7.6     2.42       2.0  Conventionally crushed      
----------------------------------------------------------------------------
68815   0.44       84   7.2     2.10       1.9  HPGR                        
----------------------------------------------------------------------------
68813   0.58       86   6.4     2.47       1.8  HPGR                        
----------------------------------------------------------------------------
68814   0.58       84   6.9     2.24       1.8  HPGR, fines processed       
                                                separately                  
----------------------------------------------------------------------------
1. Reduced levels of lime resulted in a tripling of NaCN consumption due to 
 the loss of solution pH control                                            
2. Totals include 1 kg of cement                                            



The current testing examined the impact of reducing the initial amount of lime
added to the columns, which has a direct impact on leach solution pH and NaCN
consumption. The solution pH of the current tests averaged between 9.0 and 9.5
resulting in significantly higher than previously determined NaCN consumption.
The solution pH of all previous columns had been maintained between 10 and 11
establishing heap leach NaCN consumption in the order of 0.24 kg/t.


Test Results

As confirmed by column tests 68801A and 68801B, coarser crushed mineralization
achieved slightly lower gold recoveries (72% at a 105 mm crush versus 74% at a
21 mm crush) similar to earlier column test results. Previous testing undertaken
on mineralization crushed to 19 mm achieved gold recoveries of 78 to 89%
compared to recoveries of 76 to 80% from mineralization crushed between 50 and
150 mm.


Three tests were completed on material crushed with HPGR following up on a
HPGR-related column test announced on May 9, 2013 which attained a gold recovery
of 85%. The current tests achieved gold recoveries varying from 84% to 86%. Two
columns, completed on the same sample material, examined the impact of HPGR and
conventional crushing with the HPGR test (68815) achieving 84% recoveries and
the conventional test achieving 83% recoveries. There appears to be no
significant benefit to using HPGR crushing.


Metallurgical Test Details

The column tests, conducted by Kappes, Cassidy and Associates, Reno, Nevada,
were run 84 days. Table 2 summarizes the test details. Column slump, the
difference between the initial sample height in a column compared to the height
after test completion, was low. The initial leach solution for each column test
contained 1.0 g NaCN/l and an on-flow solution NaCN concentration of 0.6 g/l was
maintained during the test period.




Table 2 - Column Test Details                                               
----------------------------------------------------------------------------
Test        Head       Gold    Test   Crush     Dry  Initial   Final  Column
#          Grade   Recovery  Period    Size  Weight   Height  Height   Slump
                                                                            
                                      (P80=                                 
        (g/t Au)        (%)    days     mm)      kg        m       m       %
----------------------------------------------------------------------------
68801A      0.33         72      84   105.0     699     3.09    3.07     0.6
----------------------------------------------------------------------------
68801B      0.33         74      84    21.0      49     2.02    2.00     0.9
----------------------------------------------------------------------------
68811       0.44         83      84     7.6      49     1.77    1.73     1.8
----------------------------------------------------------------------------
68815       0.44         84      84     7.2      55     1.93    1.90     2.0
----------------------------------------------------------------------------
68813       0.58         86      84     6.4      55     1.91    1.88     2.0
----------------------------------------------------------------------------
68814       0.58         84      84     6.9      55     1.91    1.87     1.3
----------------------------------------------------------------------------



Prefeasibility Update

The Cerro Maricunga prefeasibility study is progressing well. The mineral
processing and the majority of the mining plans have been completed and Atacama
Pacific is waiting for supplier quotes for fleet equipment and some
infrastructural items. All quotes are expected prior to the end of June and the
PFS should be available for release in early July 2014.


Share Issuance

As announced on May 15, 2014, Atacama Pacific entered into an agreement with
Hydro Exploraciones SpA under which it agreed to issue 350,000 common shares at
a price of $1.15 per share to settle all obligations under two water exploration
agreements. These agreements are related to water concessions located 70 km to
the east of the Cerro Maricunga and subject to a water exploration joint venture
agreement with Exeter Resources Corporation. These shares were issued on June 6,
2014 following approval of the transaction by the TSX Venture Exchange. The hold
period on these shares will expire on October 7, 2014.


About Atacama Pacific Gold Corporation

Atacama Pacific's primary mineral property is the Cerro Maricunga
oxide-associated, breccia-hosted gold project, located in Region III, 140
kilometres by road northeast of the city of Copiapo. In Atacama Pacific's
January 2013 PEA envisions a large open pit operation mining 80,000 tonne per
day with a conventional heap leach processing facility producing 2.7 million
ounces of gold over a 10 year mine life with cash costs of US$652 per ounce. On
January 28, 2014, Atacama Pacific announced an updated pit confined resource
estimate of 3.47 million ounces of gold (248.8 million tonnes grading 0.43 g/t
gold) in the measured and indicated category with a further 0.043 million ounces
(3.1 million tonnes grading 0.43 g/t gold) in the inferred category. The
resource estimate was based upon a cut-off grade of 0.18 g/t gold.


National Instrument 43-101

As defined by Section 1.5 of National Instrument 43-101 ("NI 43-101") of the
Canadian Securities Administrators, the Qualified Person for the Cerro Maricunga
Property is Sergio Diaz, a resident of Santiago, Chile and a registered member
of the "Comision Calificadora de Competencias en Recursos y Reservas Mineras"
(Chilean Mining Commission, registry n degrees 051), an accepted foreign
association as defined by NI 43-101 (Appendix A). Mr. Diaz has reviewed the
contents of this press release.


The Cerro Maricunga resource estimate was prepared under CIM Definition
Standards (2005). Dr. Eduardo Magri, a mining engineer (University of
Witwatersrand) and a Fellow of the Southern African Institute of Mining and
Metallurgy with over 30 years of industry experience, is the Independent
Qualified Person for the resource estimate.


FORWARD-LOOKING STATEMENTS

This news release contains forward-looking statements, including predictions,
projections and forecasts. Forward-looking statements include, but are not
limited to, statements with respect to the PEA, including the potential total
gold production of 2.7 million ounces over a 10.1 year mine life, initial life
of mine estimated operating cash costs of US$652/oz Au, preliminary initial
capital cost estimate of US$514.6 million with sustaining capital of US$249.0
million, pre-tax pay-back period of 2.5 years at US$1,450/oz Au and 1.7 years at
US$1,700/oz Au, pre-tax NPV of $741 million at US$1,450/oz Au and a 5% discount
rate After-tax NPV5% of US$531 million, pre-tax NPV5% of US$1,247 million and an
after-tax NPV5% of US$923 million at US$1,700/oz Au, pre-tax IRR) of 33.9% at
US$1,450/oz Au (after-tax IRR of 26.6%), statements regarding the expectation to
increase mineral resources, statements regarding expectations for receipt of
permits and environmental approvals, exploration results (including with respect
to water resources), the success of exploration activities generally, mine
development prospects, and potential future gold production. Often, but not
always, forward-looking statements can be identified by the use of words such as
"plans", "planning", "expects" or "does not expect", "continues", "scheduled",
"estimates", "forecasts", "intends", "potential", "anticipates", "does not
anticipate", or "belief", or describes a "goal", or variation of such words and
phrases or state that certain actions, events or results "may", "could",
"would", "might" or "will" be taken, occur or be achieved.


Forward-looking statements involve known and unknown risks, future events,
conditions, uncertainties and other factors which may cause the actual results,
performance or achievements to be materially different from any future results,
prediction, projection, forecast, performance or achievements expressed or
implied by the forward-looking statements. Such factors include, among others,
the results of due diligence activities, changes in economic parameters and
assumptions, the interpretation and actual results of current exploration
activities; changes in project parameters as plans continue to be refined; the
results of regulatory and permitting processes; future prices of gold; possible
variations in grade or recovery rates; failure of equipment or processes to
operate as anticipated; labour disputes and other risks of the mining industry;
the results of further economic and technical studies, delays in obtaining
governmental approvals or financing or in the completion of exploration, as well
as those factors disclosed in Atacama Pacific's publicly filed documents.


Although Atacama Pacific has attempted to identify important factors that could
cause actual actions, events or results to differ materially from those
described in forward-looking statements, there may be other factors that cause
actions, events or results not to be as anticipated, estimated or intended.
There can be no assurance that forward-looking statements will prove to be
accurate, as actual results and future events could differ materially from those
anticipated in such statements. Accordingly, readers should not place undue
reliance on forward-looking statements.


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.


FOR FURTHER INFORMATION PLEASE CONTACT: 
Atacama Pacific Gold Corporation
Carl B. Hansen
President and CEO
416 861 8267
416 861 9116 (FAX)
info@atacamapacific.com
www.atacamapacific.com

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