|March 12, 2018|
Blackheath Drills 92 Metres of 0.25% WO3 at Borralha, Portugal
|Blackheath Resources Inc. (TSXV: BHR Frankfurt: 04B) ("Blackheath" or "the Company") is pleased to report drilling results of further exploration at the Santa Helena Breccia located within the historic Borralha Tungsten Project in northern Portugal. The programme included an additional diamond drill hole, Hole BO-17, located in the surficial breccia zone approximately 100m south of previously reported Hole BO-8A which showed 118m assaying 0.29% WO3 (57m to 175m) and included a 91 metre intersection assaying 0.31% WO3 (84m to 175m) (see News Release April 21, 2015). The current price of tungsten is approximately $33/kg of WO3.|
Results from Hole BO-17 included a 92m intersection from 39 metres to 131 metres assaying 0.25% WO3 as shown below:
Table 1. Drill results Santa Helena Breccia DDH Hole BO-17
Assay intercept widths may not be true widths, which cannot as yet be determined, as the shape and size of the mineralized breccia zones has not been determined. Tungsten analyses were performed by ALS Minerals laboratory, an accredited and internationally used firm in Vancouver, Canada using standard ME-XRF05 and ME-MS85 assay techniques for assays over 0.05% WO3.. QA/QC procedures included standards blanks and duplicates and accuracy and reproducibility are good.
The Santa Helena Breccia is exposed at surface and detailed historical underground mapping and detailed surface geological mapping indicates that the mineralized breccia may be at least 575 metres in length, over 150 metres in width and open to a depth of over 200 metres. There are numerous surface workings, 3 shallow open pits, and a series of underground mining tunnels, mine shafts and adits located within the breccia body. Earlier in the exploration program, drilling and trenching at the south end of the breccia exposed additional mineralization (see News Releases April 21, 2015, July 23, 2014 and September 16, 2013).
Tungsten mineralization in the form of wolframite is disseminated throughout the breccia and includes a higher grade mineralized trend from the center to the southern end of the breccia. This higher grade trend is open for expansion. The breccia appears to be continuing at depth, however further drilling will be required to fully understand the true dimensions of the St. Helena Breccia and its mineralized zones. Due to the size and scope of the Santa Helena Breccia, further drilling will be required before preparation of a resource estimate.
Covas Tungsten Project
The Company has also completed a diamond drill hole at its Covas Tungsten Project ("Covas") in Northern Portugal. Past exploration at Covas by the Company and others, including Union Carbide Corporation, resulted in an independent maiden tungsten resource estimate totalling 449,800 MTUs WO3 of indicated mineral resource based on 1,081,000 tonnes at an average grade of 0.42% WO3 and 767,100 MTUs WO3 of inferred mineral resource based on 2,211,000 tonnes at an average grade of 0.35% WO3 (news release March 31, 2015; see also NI 43-101 compliant Technical Report on the Covas Tungsten Deposit filed on SEDAR May 14, 2015). Over 80% of the tungsten mineralisation is located within 60 metres of surface. Tungsten price is currently around US $330 per metric tonne unit (1 MTU - 10kg of WO3), an increase of some 50% over the past year.
Previous geophysical testwork and geochemical grid sampling by the company led to the consideration of a possible large-tonnage, near-surface disseminated tungsten deposit related to the granitic Covas intrusive body. Blackheath completed one 225 m diamond drill hole to test this target. Visual interpretation of the core indicated moderate to strong greisens alteration in the top third of the hold and locally strong to pervasive silicification in the bottom half of the hole. However, no tungsten mineralization was observed and no assays of any of the samples showed any significant results. The Company is currently reviewing progress at Covas to determine the next steps for exploration.
Blackheath Resources Inc. is listed on the TSX Venture Exchange, and is focused on tungsten exploration and development in northern Portugal. The Company holds the past-producing Covas and Borralha tungsten projects and also the Bejanca tungsten/tin project. Management of Blackheath has previous experience in tungsten mining operations in Portugal through Primary Metals Inc., the operator of the Panasqueira Tungsten Mine from 2003 to 2007. Further information about the company's activities may be found at www.blackheathresources.com and under the company's profile at www.sedar.com
ON BEHALF OF THE BOARD
Alexander Langer, President & CEO
For further information please contact Investor Relations, at 604.684.3800 or email@example.com
This news release was prepared by Company management, who take full responsibility for its content. James Robertson, B..Sc., P Eng. is a Qualified Person as defined by National Instrument 43-101 of the Canadian Securities Administrators. He has prepared, supervised the preparation, or approved the scientific and technical disclosure in the news release. Tungsten analyses were performed by ALS Minerals, an accredited laboratory in Vancouver, Canada using standard ME-XRF05 assay techniques and ME-MS85 for assays over 0.05% WO3 .
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.
You can view the Previous News Releases item: Wed Nov 8, 2017, Blackheath resumes Diamond Drilling on Portuguese Tungsten Projects
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