Model of Kimberlite Pipe at Thorny River

RNS Number : 7643I

Botswana Diamonds PLC

16 December 2020

 

16^th December 2020

Botswana Diamonds PLC

("Botswana Diamonds" or the "Company")

Model of Recently Discovered Kimberlite Pipe at Thorny River

Botswana Diamonds is pleased to present a three-dimensional model of the newly discovered kimberlite pipe on Thorny River.

A high-resolution ground gravity survey conducted during October 2020 detected an enlarged anomaly along the known kimberlite fissure.  This anomaly was subsequently followed up by Reverse Circulation ('RC') drilling and confirmed as a kimberlite pipe.   

Data from the RC holes was reconciled with the ground gravity data to construct a three-dimensional model of the kimberlite pipe.  The best fit model showed an East - West trending body gently dipping to the east with a surface expression of 80 x 40m.  The results are displayed in Exhibit 1 and more fully described in the glossary:

Exhibit 1. First Pass Model of Thorny River Kimberlite

http://www.rns-pdf.londonstockexchange.com/rns/7643I_1-2020-12-15.pdf

This work is significant in providing a maiden three-dimensional model for the kimberlite within the Thorny River project which will enable precision planning of further drill holes and calculation of volumes.

The next step comprises drilling core holes to further confine the geological boundaries and microdiamond sampling to determine a first pass diamond grade estimate of the body.  Petrographic studies will be used to confirm the kimberlite types.  Geological modelling is an ongoing and iterative process with every piece of new work enhancing and increasing confidence in the model.

Precision work on the gravity data also discovered an additional anomaly to the east, which could be an extension of the kimberlite pipe and will be drilled in the New Year.

John Teeling, chairman commented: "This is our first three-dimensional model of the kimberlite on Thorny River and thus represents an important step in the commercialisation of the project.  The discovery of a second anomaly to the east of pipe following this detailed analytical work could be an extension of the pipe and will be drilled in the New Year".

This release has been approved by James Campbell, Managing Director of Botswana Diamonds plc, a qualified geologist (Pr.Sci.Nat), a Member of the Geological Society of South Africa, a Fellow of the Southern African Institute of Mining and Metallurgy, a Fellow of the Institute of Materials, Metals and Mining (UK) and with over 35-years' experience in the diamond sector. 

This announcement contains inside information for the purposes of Article 7 of Regulation (EU) 596/2014. The person who arranged for the release of this announcement on behalf of the Company was James Campbell, Director

A copy of this announcement is available on the Company's website, at www.botswanadiamonds.co.uk

ENDS

Enquiries:

Botswana Diamonds PLC John Teeling, Chairman James Campbell, Managing Director Jim Finn, Director	[phone] [phone] [phone]
Beaumont Cornish - Nominated Adviser  Michael Cornish Roland Cornish	[phone]
Beaumont Cornish Limited - Broker  Roland Cornish Felicity Geidt	[phone]
First Equity Limited -  Joint Broker  Jason Robertson	[phone]
Blytheweigh - PR Megan Ray Rachael Brooks Said Izagaren Naomi Holmes	[phone] [phone] [phone] [phone] [phone]
Teneo Luke Hogg Alan Tyrrell Ross Murphy	[phone] [phone] [phone]

www.botswanadiamonds.co.uk

Glossary

The exhibit shows the intersection of a number of boreholes with the three-dimensional model of the 'bagpipe' shaped kimberlite pipe.  The different colours within each borehole represents different rock types, for example, lime green is kimberlite, olive green is kimberlite breccia and mauve and red are different granite varieties.

 

END

 

 

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