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Press release from Marketwire
Canadian Zinc Corporation: New Mineral Resource Update at Prairie Creek Mine
- Measured + Indicated and Inferred Resource Tonnages Increased - Underground Exploration Drilling Program Underway
Thursday, March 26, 2015
Canadian Zinc Corporation: New Mineral Resource Update at Prairie Creek Mine
06:00 EDT Thursday, March 26, 2015
VANCOUVER, BRITISH COLUMBIA--(Marketwired - March 26, 2015) - Canadian Zinc Corporation (TSX:CZN)(OTCQB:CZICF) ("the Company" or "Canadian Zinc") reports that an update of the Mineral Resources at its Prairie Creek zinc, lead, silver mine located in the Northwest Territories has demonstrated an increase in overall Mineral Resource tonnages in the Measured and Indicated category and in the Inferred category.
New Block Model and Mine Plan Developed
The new Mineral Resource estimate is based on a newly constructed and more detailed geological wireframe and three dimensional block model, developed over the past year as part of the ongoing optimization of the Prairie Creek Mine, which defines and constrains the mineralized system for inclusion in the new mine plan. The new Mineral Resource estimate also includes results from additional drilling and underground sampling not included in previous estimates.
In addition, the Company is currently carrying out an underground diamond drill program at the Prairie Creek Mine. The objective of this program is to convert part of the Inferred Mineral Resource to the Indicated category for potential inclusion in an update of the Preliminary Feasibility Study scheduled to be completed later this year.
The new Prairie Creek Mineral Resource estimate has been completed by AMC Mining Consultants (Canada) Ltd., ("AMC") [Gregory Z. Mosher P.Geo. and J. Morton Shannon P.Geo., Qualified Persons ("QPs"), as defined by National Instrument 43-101 ("NI 43-101")]. AMC have undertaken a number of underground mine studies, including a geotechnical assessment to determine optimum mining methods for use in the new mining plan, and underground ventilation and backfill studies were also completed.
The new updated Mineral Resource estimate, with increases in both the Main Quartz Vein, and Stockwork, tonnages in the Indicated category, will increase the life-of-mine potential compared to the 2012 Mineral Resource estimate and is particularly important as the higher grade vein mineralization constitutes the planned early years of production. The on-going underground drilling program is expected to further increase the tonnage in the Indicated categories, which will be then included in the updated mine plan.
New Mineral Resource Highlights
- Total Measured and Indicated Mineral Resource tonnages increased to 6.5 million tonnes at combined grade of approximately 20% Pb and Zn with 150 g/t Ag, details of which include:
- an 11% increase in Main Quartz Vein tonnage to 4.1 M tonnes grading 12.4% Pb, 11.2% Zn, 199 g/t Ag;
- an increase in Stockwork tonnage to 1.4 M tonnes grading 4.0% Pb, 7.1% Zn, 63 g/t Ag from the previous Stockwork estimate of 410,000 tonnes grading 3.7% Pb, 7.7% Zn, 69 g/t Ag;
- a more constrained classification of Stratabound mineralization has shifted the previously reported tonnage from the Measured category to the Indicated category and decreased the tonnage by 17% to 1.1 M tonnes grading 5.4% Pb, 10.8% Zn, 55 g/t Ag.
- Total Inferred Resource tonnages increased by 13% to 7.1 M tonnes grading 9.6% Pb, 11.7% Zn, 177 g/t Ag from 6.2 M tonnes grading 11.5% Pb, 14.5% Zn, 229 g/t Ag.
The mineralization at Prairie Creek Mine occurs within three different styles namely; the Main Quartz Vein ("MQV"), which is a high grade steeply dipping fault structure that hosts the majority of mineralization; the Stockwork Zone ("STK"), which is a series of narrow high grade veins occurring at an oblique angle to the Main Quartz Vein; and the Stratabound Massive Sulphide ("SMS"), which occur as a thick pyrite-rich replacement-type deposit cut by the MQV.
The following table shows the 2015 Mineral Estimate by Mineral Resource category and mineralization style:
PRAIRIE CREEK RESOURCE ESTIMATE: MARCH 2015
TONNES (000)
ZN %
PB %
AG G/T
MAIN QUARTZ VEIN (MQV)
MEASURED
1,279,000
13.2
11.6
211
INDICATED
2,850,000
10.2
12.8
193
TOTAL MQV MEASURED & INDICATED
4,129,000
11.2
12.4
199
TOTAL MQV INFERRED
6,132,000
12.6
10.4
195
STOCKWORK (STK)
TONNES
ZN %
PB %
AG G/T
MEASURED
0
0.0
0.0
0
INDICATED
1,400,000
7.1
4.0
63
TOTAL STK MEASURED & INDICATED
1,400,000
7.1
4.0
63
TOTAL STK INFERRED
790,000
4.7
4.0
61
STRATABOUND (SMS)
TONNES
ZN %
PB %
AG G/T
MEASURED
0
0.0
0.0
0
INDICATED
1,059,000
10.8
5.4
55
TOTAL SMS MEASURED & INDICATED
1,059,000
10.8
5.4
55
TOTAL SMS INFERRED
156,000
11.0
6.6
63
Notes: Estimated at a cut-off grade of 8% Zn-Eq based on prices of US$1.00/lb for both zinc and lead and US$20/oz. for silver, with average processing recovery factors of 78% for Zn, 89% for Pb and 93% for Ag, and average payables of 85% for Zn, 95% for Pb and 81% for Ag, at an exchange rate $1CD = $1USD.
The new Mineral Resource updates the previous Mineral Resource Estimate of June 2012, which was incorporated into the Preliminary Feasibility Study of the Prairie Creek Mine completed by SNC-Lavalin Inc. in 2012. This was consolidated and filed as a Technical Report prepared by AMC Consultants (Canada) Ltd. ("AMC") on June 15, 2012 and subsequently revised July 23, 2014.
The following table compares the 2015 overall Mineral Resource estimate with the previous 2012 overall Mineral Resource estimate at the Prairie Creek Mine:
OVERALL RESOURCE ESTIMATE: MARCH 2015
OVERALL RESOURCE ESTIMATE: JUNE 2012
TOTAL MQV+STK+SMS
TONNES
ZN %
PB %
AG G/T
TONNES
ZN %
PB %
AG G/T
MEASURED
1,279,000
13.2
11.6
211
1,700,000
12.1
9.7
155
INDICATED
5,309,000
9.5
9.0
131
3,731,000
10.2
10.5
162
MEASURED & INDICATED
6,588,000
10.2
9.5
147
5,431,000
10.8
10.2
160
INFERRED
7,078,000
11.7
9.6
177
6,239,000
14.5
11.5
229
The main differences between the 2015 and the 2012 estimates are attributed to:
- Including data from 50 additional diamond drill holes and underground chip samples.
- More constraining factors used in the 2015 estimation, including block size, interpolation and minimum number of samples used.
- The 2015 Mineral Resource was estimated by ordinary Kriging; the 2012 Mineral Resource was estimated using inverse distance squared.
- The 2015 estimate used a regression equation to estimate bulk densities; the 2012 estimate used interpolated bulk density values and a single fixed value for the Stockwork zone.
- The 2015 block model incorporated LIDAR survey data which improved the accuracy in surface control when incorporating the new drill/chip data.
- The geological interpretation was revised to subdivide the Main Quartz Vein into two en-echelon bodies.
- The total Inferred Mineral Resource was estimated with a 13% higher tonnage but at a lower grade as a result of using more constraining geological factors and a larger minimum number of samples.
Key Assumptions, Parameters and Methods of Modelling in 2015 Resource Estimate
A single block model was created to encompass the three mineral domains: MQV, STK and SMS. Block values were computed using ordinary Kriging and the inverse distance squared method. Grades for silver, lead, zinc, copper, arsenic, cadmium, iron, mercury, lead oxide, antimony and zinc oxide were interpolated into the block model in a single pass: resources were subsequently classified on the basis of the number of supporting data and their distance from the block centroid.
Underground Exploration Program
The currently ongoing underground diamond drill program is mainly targeting MQV and STK zones with the goal of upgrading part of the Mineral Resource from Inferred to an Indicated classification. The additional Indicated Resources could then be incorporated into a new mine plan to support a longer mine life.
In order to facilitate the exploration drilling an underground rehabilitation program was carried out in the fourth quarter of 2014 by dewatering and re-installing electrical and ventilation services to the 650 metre-long decline tunnel that is located at the end of the 870m underground level.
After completion of the rehabilitation work diamond drilling was started from underground drill stations located at the end of the decline tunnel. The planned program will comprise about 6,000 metres of diamond drill coring over 21 holes on four, 50-metre sections from three existing diamond drill stations.
Drilling is presently on-going on the fifth hole of a proposed ring of six holes from the first of the three stations.
About the Prairie Creek Mine
The Prairie Creek Mine contains a partially developed infrastructure including a 1,000 tonne per day flotation mill, workshops, accommodations, and support facilities. The Company holds a Type "A" Water Licence which, along with previously issued permits and licences, permits the operation of a mine at Prairie Creek. A Preliminary Feasibility Study was completed in 2012.
Throughout 2014 the Company has been undertaking an Optimization Study as part of which AMC have been engaged to review the underground mine plan and focus on reducing the initial development, shorten the development schedule and optimize the underground mine operation in general. A number of key underground investigations to determine optimal mining methods have been completed that will be integrated into the new mine plan.
As part of the ongoing mine development program, Tetra Tech has been engaged to provide technical services for basic engineering and procurement services for the development of major equipment packages, facility rehabilitation and repair work and capital items for the Prairie Creek Mine.
Metallurgical process studies, designed to enhance concentrate production and quality, along with concentrate marketing studies to better determine and optimize the economic cash flow of the proposed Prairie Creek operation, were also carried out and continue in 2015.
The Company continues to evaluate strategies for raising the financing necessary to complete the development and construction of the Prairie Creek Mine as part of which the Company plans to update the 2012 Preliminary Feasibility Study following completion of the current program of underground drilling.
Qualified Persons
This press release has been reviewed and approved by Alan Taylor P.Geo., COO & VP Exploration, of Canadian Zinc, who is a Non-Independent QP under NI 43-101.
The QPs, Gregory Z. Mosher P.Geo. and J. Morton Shannon P.Geo. of AMC, have reviewed and approved the content of this news release.
Cautionary Statement - Forward-Looking Information
This press release contains certain forward-looking information, including, among other things, the expected completion of acquisitions and the advancement of mineral properties. This forward-looking information includes, or may be based upon, estimates, forecasts, and statements as to management's expectations with respect to, among other things, the completion of transactions, the issue of permits, the size and quality of mineral resources, future trends for the company, progress in development of mineral properties, future production and sales volumes, capital costs, mine production costs, demand and market outlook for metals, future metal prices and treatment and refining charges, the outcome of legal proceedings, the timing of exploration, development and mining activities, acquisition of shares in other companies and the financial results of the company. There can be no assurances that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements. Mineral resources that are not mineral reserves do not have demonstrated economic viability. Inferred mineral resources are considered too speculative geologically to have economic considerations applied to them that would enable them to be categorized as mineral reserves. There is no certainty that mineral resources will be converted into mineral reserves.
Cautionary Note to United States Investors
The United States Securities and Exchange Commission ("SEC") permits U.S. mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. We use certain terms in this press release, such as "measured," "indicated," and "inferred" "resources," which the SEC guidelines prohibit U.S. registered companies from including in their filings with the SEC.
FOR FURTHER INFORMATION PLEASE CONTACT:
Contact Information:
Canadian Zinc Corporation
John F. Kearney
Chairman & Chief Executive
(416) 362-6686
220 Bay Street, Suite 700
Toronto, ON M5J 2W4
In addition, Baja is pleased to report that it has been confirmed by MMB, as previously indicated by MMB, that damage to the Boleo site caused by Hurricane Odile was minimal. As a result, MMB has further advised Baja that it currently expects to produce first copper by the end of October 2014.
Singaporean university develops what could be a huge game-changer in battery technology.
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Author: Lawrence Williams
Posted: Friday , 17 Oct 2014
LONDON (Mineweb) -
In what could be a game-changer in battery development, with a potentially enormous impact on the market for electric powered motor vehicles, scientists at Singapore’s Nanyang Technology University (NTU) have developed ultra-fast charging batteries that can be recharged up to 70% in only two minutes. What’s more, the university claims that these new generation batteries also have a long lifespan of over 20 years - more than ten times that of existing lithium-ion batteries.
This breakthrough could have an enormous impact on all industries, especially for electric vehicles, where consumers are put off by the long recharge times and limited battery life. With this new technology, drivers of electric vehicles could save tens of thousands on battery replacement costs and could recharge their cars in a matter of minutes.
“Electric cars will be able to increase their range dramatically, with just five minutes of charging, which is on par with the time needed to pump petrol for current cars,” says its invetor - Associate Professor Chen Xiaodong from NTU’s School of Materials Science and Engineering.
The 10,000-cycle life of the new battery also mean that drivers of electric vehicles would save on the cost of battery replacements, which could cost over US$5,000 each.
This could also provide a good shot in the arm for mines producing titanium dioxide, although it could be seriously problematic for companies focussing on graphite should the technology be fully proven on a commercial scale and brought into production quickly - as NTU claims it could be.
Commonly used in mobile phones, tablets, and in electric vehicles, rechargeable lithium-ion batteries usually last about 500 recharge cycles. This is equivalent to two to three years of typical use, with each cycle taking about two hours for the battery to be fully charged.
“Equally important, we can now drastically cut down the toxic waste generated by disposed batteries, since our batteries last ten times longer than the current generation of lithium-ion batteries,” adds Prof Chen.
The process
In the new NTU-developed battery, the traditional graphite used for the anode (negative pole) in lithium-ion batteries is replaced with a new gel material made from readily available titanium dioxide which is mostly used in pigments and sunscreen lotions.
The NTU team has found a way to transform the titanium dioxide into tiny nanotubes, which are a thousand times thinner than the diameter of a human hair. This speeds up the chemical reactions taking place in the new battery, allowing for superfast charging.
The science behind the formation of the new titanium dioxide gel was published in the latest issue of Advanced Materials, a leading international scientific journal in materials science.
Prof Chen and his team will be applying for a proof-of-concept grant to build a large-scale battery prototype. With the help of NTUitive, a wholly-owned subsidiary of NTU set up to support NTU start-ups, the patented technology has already attracted interest from the industry.
The technology is currently being licensed by a company for eventual production. Prof Chen expects that this new generation of fast-charging batteries based on his research could hit the market in the next two years.
Easy to manufacture
An NTU media release notes that according to Frost & Sullivan, a leading growth-consulting firm, the global market for rechargeable lithium-ion batteries is projected to be worth US$23.4 billion in 2016, but these usually use additives to bind the electrodes to the anode, which affects the speed in which electrons and ions can transfer in and out of the batteries.
Prof Chen’s new cross-linked titanium dioxide nanotube-based electrodes eliminates the need for these additives and can pack more energy into the same amount of space.
Manufacturing this new nanotube gel is claimed to be very easy. Titanium dioxide and sodium hydroxide are mixed together and stirred under a certain temperature so battery manufacturers will find it easy to integrate the new gel into their current production processes.
Recognised as next big thing by co-inventor of today’s lithium-ion batteries
NTU professor Rachid Yazami - who co-invented the lithium-graphite anode 30 years ago that is used in today’s lithium-ion batteries - said Prof Chen’s invention is the next big leap in battery technology.
“While the cost of lithium-ion batteries has been significantly reduced and its performance improved since Sony commercialised it in 1991, the market is fast expanding towards new applications in electric mobility and energy storage,” said Prof Yazami, who is not involved in Prof Chen’s research project.
Last year, Prof Yazami was awarded the prestigious Draper Prize by The National Academy of Engineering for his ground-breaking work in developing the lithium-ion battery with three other scientists.
“However, there is still room for improvement and one such key area is the power density - how much power can be stored in a certain amount of space - which directly relates to the fast charge ability. Ideally, the charge time for batteries in electric vehicles should be less than 15 minutes, which Prof Chen’s nanostructured anode has proven to do so.”
Prof Yazami is now developing new types of batteries for electric vehicle applications at the Energy Research Institute at NTU (ERI@N). This battery research project took the team of four scientists three years to complete. It is funded by the National Research Foundation (NRF), Prime Minister's Office, Singapore, under its Campus for Research Excellence and Technological Enterprise (CREATE) Programme of Nanomaterials for Energy and Water Management.
http://www.mineweb.com/mineweb/content/en/mineweb-editors?oid=257049&sn=Detail
This is an error on the website. This release is from January 2014.
BB
Press release from Marketwire
Fancamp Reports Assay Results of 5 Intercepts From 3 Holes Recently Drilled on the V Zone of the Clinton Copper-Zinc Project, Eastern Townships (Quebec)
Tuesday, October 14, 2014
Fancamp Reports Assay Results of 5 Intercepts From 3 Holes Recently Drilled on the V Zone of the Clinton Copper-Zinc Project, Eastern Townships (Quebec)
11:21 EDT Tuesday, October 14, 2014
VANCOUVER, BRITISH COLUMBIA--(Marketwired - Oct. 14, 2014) - Fancamp Exploration Ltd. ("Fancamp" or the "Company") (TSX VENTURE:FNC) wishes to report recent assay results from the V Zone of the acquired Namex Property ("Namex") in the Clinton volcano-sedimentary belt located in the Eastern Townships of southern Quebec near the Maine border (refer to the Fancamp news release dated July 16, 2012).
With the revised resource estimate of the V Zone, Fancamp now holds a total of 1.88 million tonnes grading 1.73% Copper and 1.01% Zinc (not NI 43-101 compliant because of the use of historic data) in six distinct zones located in the northern sector of the Clinton volcano-sedimentary belt extending on the Company's property for some 17 kilometres from Lac Megantic Quebec, south to the border with the State of Maine. The Company plans a "Scoping Study" on this zone and the others, to establish whether these resources can generate an economic return.
Three holes were drilled on the V Zone and intercepted five mineralized zones. The results are shown in the following table.
Hole
Zone
From
m
To
m
Length
m
Cu
%
Zn
%
Ag
g/t
Au
g/t
CL-2014-03
V3
111.6
113.8
2.2
3.33
0.74
40.7
0.16
CL-2014-04
V1
60.6
67.5
6.9
0.77
0.01
5.5
0.01
CL-2014-04
V3
146.5
157.5
11
1.27
1.14
11
0.05
CL-2014-05
V1
85.5
110.2
24.7
2.78
0.01
16.9
0.01
CL-2014-05
V3
169.8
174
4.2
0.85
0.50
4.7
0.02
The immediate purpose of this drilling is to provide material for metallurgical tests on the V mineralization.
The "V Zone", was discovered by Namex and OT Mining Corp. in 1996, during which a total of 17 holes totaling 4608 m were drilled. Fancamp drilled a further 3134 m in 11 holes in 2012 and 3 additional holes in 2014 totalling 417 m which are here reported. A preliminary resource estimate for this Zone is 880,000 tonnes grading 1.32% Copper and 0.42% Zinc (again, not 43-101 compliant because of the use of historic data).
Total historic mineral resources on the Clinton property are as follows;
Zone A : 305,000 tonnes at 2.33% Cu, 2.22% Zn
Zone C : 330,000 tonnes at 1.77% Cu, 0.64% Zn
Zone E : 15,000 tonnes at 1.70% Cu, 1.09% Zn
Zone F : 270,000 tonnes at 2.03% Cu, 2.14% Zn (South lenses)
Zone F : 80,000 tonnes at 2.67% Cu, 0.52% Zn (North lenses)
Zone V: 880,000 tonnes at 1.32% Cu, 0.42% Zn
Zone O : 110,000 tonnes at 2.65% Cu, 2.43% Zn (Mined out in 1973 to 1975 by The Sullivan Mines Ltd.).
These historic resource estimates were generated prior to the implementation of National Instrument ("NI") 43-101 standards. Given the quality of the work prepared by the MRNFQ and the Groupe Minier Sullivan, the company believes the resource estimates to be both relevant and reliable. However, a qualified person has not completed sufficient work to classify the historic mineral resources as current mineral resources, and is not treating the historic resources as current. Hence, they should not be relied upon.
As is common in VMS areas, the mineralized zones at Clinton are clearly associated with a specific layer of the volcanic sequence. Most of the mineralized zones of the Clinton Formation are stratigraphically located at the top of a non-magnetic mafic volcanic unit with minor felsic volcanics, both pillowed and tuffaceous. This unit in turn is overlain by a magnetic mafic volcanic unit with very characteristic magnetic iron beds at the top. Most of the mineralized zones of the Clinton Formation are at the contact between the non-magnetic and magnetic rocks, facilitating exploration and followup. Fancamp believes there remain other undiscovered zones along this favourable contact and the recent drilling along it has also indicated favourable felsic host rocks containing low grade copper and zinc mineralization.
The technical information in this news release was compiled, reviewed and approved by Yvan Bussieres, Eng, a Qualified Person under NI 43-101 Rules.
Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.
Quality Assurance / Quality Control Protocols
Drill core boxes from the 2010, 2011, 2012 and 2014 diamond drilling campaigns arrived at the Fancamp core logging facility located in Thetford Mines (Quebec). Boxes are opened and depth tags are verified for errors. Each box is labeled with embossed aluminum tape stapled to box end. Numbers indicated hole and box numbers as well as "from" and "to" footages. Sampling is continuous through mineralized intervals and intermittent in other lithologies or lithological contacts. Within mineralized intervals, samples taken are between 0.5 to 1.5 meters in length of half-split core, or up to lithological or structural boundaries.
According the nature of the mineralization, whether Gold, Copper and/or Zinc, one to three standards per hole are included within the sampling of mineralized zones (ME-7, CDN-ME-14, P4A). One blank sample is inserted at every 17 to 19 samples. One duplicate sample is produced at every 17 to 19 samples.
Other parameters described in the drill logs included structure, alteration and mineralization. Mineralization is described as a visual percentage of sulphides. Sample bags are wrapped with cable tie. Samples are placed in large rice bags for shipping, all secured with a cable tie. Samples are transported from the core shack to the Thetford Mines bus station. They are shipped by commercial transport to the ALS Laboratory Group facilities in Val-d'Or (Quebec) (the "ALS Laboratory"). Shipping waybills and sample submittal form are scanned and sent to the lab by internet. They are also kept for tracking shipments as required.
Samples arriving at the ALS Laboratory are individually weighed, dried at high temperature, crushed 70% to <2 millimeters, riffle split and pulverized 85% to <75 µm. Samples were analyzed by the Au-ICP 21 and ME-MS41 methods. If values returned greater than 100 g/t Silver, 10,000 ppm Copper and 10,000ppm Zinc for the ME-MS41 assay method, then a second assay is done using the either Ag-OG46, Cu-OG46 and/or Zn-OG46 method.
FOR FURTHER INFORMATION PLEASE CONTACT:
Contact Information:
Fancamp Exploration Ltd.
Peter H. Smith, PhD, P.Eng.
President and CEO
+1 514 481-3172
phsmith@outlook.com
www.fancampexplorationltd.ca