- 1 TPH DMS plant is now processing soil samples from six project areas
- A total of 362 soil samples to be processed
- Detailed grid sampling of priority kimberlite targets at Malatswae Project
- An additional Prospecting licence awarded contiguous with Jwaneng South Project
TORONTO, ONTARIO (July ,29 2015) – Pangolin Diamonds Corp. (TSX-V: PAN) (the “Company” or “Pangolin”) is pleased to provide an update for the Company’s wholly-owned Diamond Projects, located in Botswana.
The Company currently has 362 exploration soil samples from its wholly owned projects awaiting processing through the 1 tph DMS plant facility.
Two sets of samples from the Malatswae Project are in the process production line. Thirty seven (37) samples were collected from the MSC Grid where three diamonds have previously been reported from. An additional 50 regional samples have been collected and are awaiting processing. Two additional soil sampling teams are being deployed to focus on detailed sample grids targeting the announced anomalous soil sample results and the +20 aeromagnetic targets identified from regional data (See NR June, 30 2015 and July, 15 2015). The size of the individual samples have been increased to a minimum of 100 litre per sample to increase the probability of recovering kimberlite indicator minerals.
The samples from the Rehoboth Project (125 samples) are 40 litre regional soil samples collected on a 4km x 4 km GPS controlled grid. This is a similar sampling density used by Falconbridge Exploration Botswana in the 1980’s that resulted in the Khutse and Meratswe groups of kimberlites. The Rehoboth Terrane has not been explored before by other diamond exploration companies. Recent re-evaluation of the geology of the Rehoboth Terrane has determined the area is cratonic and prospective for the exploration of diamonds. The Rehoboth Prospecting Licences are valid from 01 January 2015 to 31 December 2017 and cover an area of 378,300 hectares (3,783 km2).
Jwaneng South Project
Eighty (80) grid samples covering two aeromagnetic targets in the Jwaneng South Project are streamlined to be processed during the next two weeks. In addition, a new Prospecting Licence (PL170/2015) covering 72,000 hectares (720 km2) adjunct to the Jwaneng South Project has been issued to the Pangolin 100% subsidiary Geocontracts Botswana (Pty) Limited valid for three years from 01 July 2015 to 30 June 2018. The area will be subject to regional soil sampling during the fourth quarter.
Motloutse River Project
A kimberlite dyke was discovered in the Motloutse River Project in 2006 within an area where diamonds were historically reported. An orientation sampling programme of 25 samples has been completed in this area. These samples are being prioritised as part of a programme to follow up possible extensions of the kimberlite dyke.
Machaneng South Project
Soil sampling commenced this quarter in the Machaneng South Project (PL 228/2014 covering 99,000 hectares). The soil sampling programme targets specific geobotanical targets. Twenty (20) samples were collected to date. The strategy employed in the Macahaneng Prospecting Licence was successful in discovering the SWS-21 which contained kimberlite indicator minerals (NR Sept, 18 2013).
Historical kimberlite indicators reported by De Beers have been followed up with a small 25 sample orientation programme in the Mmadinare Project.
At current throughput rates it is expected that the samples currently at the DMS plant will be processed by the end of the quarter. In addition to these current samples, the detailed grid samples being collected this quarter from the Malatswae Project will be prioritised for processing.
Any kimberlite indicator minerals recovered from these samples will be submitted for microprobe analyses to obtain their detailed compositions which may assist in discriminating between different target areas.
The technical disclosure in this news release has been reviewed and approved by Dr. Leon Daniels, Ph.D., Member of AIG, President and CEO of Pangolin Diamonds and is a Qualified Person as defined by National Instrument 43-101.
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Click to download PDF: PAN NR DMS and Soil Sampling Update End July 2015
2 thoughts on “Update for the Botswana Exploration Projects – DMS plant and soil sampling”
Who discovered the Motloutse kimberlite dyke? What is known about the mineral chemistry? Was it tested for diamonds?How much sampling/aeromagnetic surveys were conducted there and by whom? As there is no Kalahari overburden and diamonds were recovered in that river, I would rate this area very highly if the kimberlite is indeed genuine. Regards, Manfred Marx
Who discovered the Motloutse kimberlite dyke?
The kimberlite dyke was discovered by Geocontracts Botswana in 2006. It is a narrow dyke, not more than 15cm wide, intruded at a shallow angle in Karoo siltstones that are unconformably deposited in granitic basement. The dyke was exposed to a depth of approximately eight metres through pitting. It is highly weathered. A sample from the dyke was analysed at the laboratory of the Geological Survey of South Africa and the bulk rock chemistry was found to be very comparative to the bulk rock chemistry of the highly weathered part f the Group II Kareevlei-Wes kimberlite in South Africa.
What is known about the mineral chemistry?
No minerals were seperated from the dyke at the time. However, soil samples collected by a previous explorer of the area in the vicinity of the dyke produced garnets and two diamonds. No ilmenite was recovered from any of the soil samples in the area. The absence of ilmenite is consistent with Group II kimberlite indicator mineral assemblages and inconsistent with an Orapa Group I kimberlite indicator train.
Was it tested for diamonds?
The dyke material was not tested for diamonds as the width of the dyke did not suggest economic potential. The dyke was discovered 40 metres from where a GPS controlled sample collected by a previous explorer produced a diamond. The samples were screened to +0.425 – 2.0 mm. These samples were not collected in the Motloutse River.
How much sampling/aeromagnetic surveys were conducted there and by whom?
The area has previously been sampled by Central African Selection Trust (CAST) who reported the first authenticated diamonds in Botswana from this area in 1959. Subsequently, the area was sampled by De Beers in 1962 and the first diamond recovered by De Beers in Botswana (then Bechuanaland) was also recovered from this area. These first two exploration programmes focused on alluvial gravels in the local river and streams. De Beers conducted a second sampling programme along semi-continuous scoop sample traverses in the general area during the early 1970’s and reported a number of indicators as well as additional diamonds. AMPAL, a Botswana company, sampled parts of the general area in the 1990’s. AMPAL discovered a significant kimberlite garnet anomaly in an area covered by Kalahari sediments in the northwestern part of the current Motloutse River prospecting licence. MIT Ventures, a Canadian company sampled the area extensively in the early 2000’s and reported the two diamonds mentioned earlier.
Pangolin rates the area highly for the discovery of kimberlite. The presence of diamonds as reported by previous explorers is encouraging. The orientation samples collected recently will allow assessment of sampling techniques for the area. It is important to establish appropriate sampling techniques for each prospecting area.
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