Dr. Mike de Wit reports
TSODILO RESOURCES LIMITED ACQUIRES RIGHTS TO BK16 KIMBERLITE PIPE IN BOTSWANA
Tsodilo Resources Ltd. has been granted a prospecting
licence over the BK16 kimberlite pipe located within the Orapa kimberlite
field in Botswana. BK16 is located 37 kilometres east-southeast of Debswana's Orapa
mine and 13 kilometres north-northeast of its Letlhakane diamond mine and 28 kilometres east-northeast from Lucara
Diamond Corp.'s Karowe mine. Botswana diamond mines have produced an
average of 27 million carats annually in the last 10 years and Botswana is
the world's largest producer of diamonds by value. The licence grants the
company the exclusive right to prospect for precious stones for an initial
period of three years commencing Oct. 1, 2014.
Dr. Mike de Wit, president and chief operating officer of Tsodilo, stated: "We are delighted in
securing the exploration licence in the diamondiferous BK16 kimberlite pipe.
This development affords us an opportunity to accelerate our kimberlite
exploration and evaluation efforts in the largest diamond-producing country
by value in the world. There has been a growing trend in Botswana focusing
on brownfields exploration where more modern evaluation techniques are
being applied to previously discovered kimberlites. This has, in many cases,
improved diamond grades, and coupled with increasing diamond prices, has
resulted in projects now meeting the required hurdle rates. Botswana is
renowned for its investor-friendly environment, and is also served by an
excellent infrastructure making it one of the lowest-cost producers in the
world."
BK16, which was discovered in 1970, is known to be diamondiferous and was
originally modelled to be 3.5 hectares in size although later work has
suggested that the surface area of the kimberlite could be bigger. BK16 is
part of the Orapa kimberlite field in Botswana. The bedrock of the
region is covered by a veneer of Kalahari group sediments and exposure is
very poor. Rocks close to surface are often extensively calcretized and
silcretized due to prolonged exposure on a late Cretaceous erosion surface
(the African surface) which approximates to the present-day land surface.
Previous work has indicated that the overburden over BK16 is 24 metres.
The Orapa kimberlite field lies on the northern edge of the Central Kalahari Karoo basin along
which the Karoo succession dips very gently to the south-southwest and off-laps against
the Precambrian rocks which occur at shallow depth within the Makgadikgadi
depression.
The Orapa kimberlite field includes at least 83 kimberlite bodies, varying in size from
insignificant dikes to the 110-hectare AK1 kimberlite which is Debswana's Orapa
mine. All kimberlite intrusions are of post-Karoo age. Of the 83 known
kimberlite bodies, nine -- AK1 (Orapa, Debswana); AK6 (Karowe, Lucara Diamond); BK1, BK9, BK12 and BK15 (Damtshaa, Debswana); DK1 and DK2
(Letlhakane, Debswana); and BK11 (Firestone Diamonds) -- have been or are
currently being mined.
A bulk sample grade of 15 carats per hundred tonnes for BK16 was reported by Firestone Diamonds
based on work previously performed. Diamonds recovered by the limited
sampling carried out by Montgomery, SouthernEra Pty. Ltd., Firestone
Diamonds and others have been predominantly high-quality white gemstones,
with few industrial diamonds. This indicates that diamonds from BK16 are
likely to have a high average value. The grade reported for BK16 is similar
to that reported on work done on AK6 in the early 1990s (then 17 carats per hundred tonnes). A
larger-scale bulk sampling program carried out on AK6 in 2005 by the De
Beers/African Diamonds joint venture yielded a substantially higher grade of
24 carats per hundred tonnes. AK6 is known today as the Karowe mine and is operated by Lucara
Diamond.
Evaluation plans
Tsodilo is planning an evaluation program that will include detailed
geophysics and core drilling to more accurately establish the size and
internal geology of the kimberlite. Dependent on the results of the diamond
drilling which would include petrographic, mineral chemistry and
microdiamond results, 24-inch large-diameter drilling would follow to
recover a representative bulk samples from the different kimberlite phases
in order to establish a grade and average diamond value with more
confidence. The plan is to complete the first phase of bulk sampling in the
first year.
Board members
The company owns 75 per cent of Bosoto with local partners holding the remaining
25 per cent. The board of Bosoto is composed of Mr. Bruchs, Mr. Cushing and Dr.
de Wit on behalf of Tsodilo and recently appointed members, Blackie
Marole and Johannes de Wet.
Mr. Marole is an economist by profession who has, over a period of
30 years, held various senior positions in the banking, government and
mining sectors. He retired in 2010 after six years as managing director of
the Debswana Diamond Company. While in government, Mr. Marole held the role
of permanent secretary for seven years where he was responsible for the
overall supervision of the formulation of policies, co-ordination and
management of the affairs of the Ministry for Minerals, Energy
and Water Resources. He currently serves as chairman of Botswana Development
Corp. and African Energy Botswana Pty. Ltd. He was chairman of Barclays
Bank of Botswana and Botswana Diamond Valuing Company, a director of
DeBeers, the Diamond Trading Company, BCL and CIC Energy Corp., and the former
chairman of Botswana Power Corp. and Water Utilities Corp. He
has also served as the chairman of the Privatization and Outsourcing Agency
of Botswana.
Mr. de Wet serves as the technical director of DeWetDrilling and
various other companies in the DeWetDrilling Group of Companies. He has
gained vast experience in the field of most drilling disciplines over a
period of 25 years in Southern Africa. Of particular importance is his
expertise in diamond exploration and bulk sample drilling operations. He was
the designer and manufacturer of the renowned Elephant mobile drill rig
deployed in large-diameter fluid reverse circulation kimberlite bulk
sampling operations all over Southern Africa during the past decade. Mr. de
Wet is also the chief technical officer of Bauer De Wet Equipment Pty.
Ltd., where he was tasked with the conceptualization, design and
manufacture of the 90-tonne Buffalo multipurpose drill rig primarily
developed for the shallow onshore oil and gas market as well as the Rhino
1300 range of tracked blast hole drill rigs. The Buffalo 90 is capable to
satisfy directional drilling requirements down to 2,000 metres.
Overall supervision of the company's
exploration program is the responsibility of Dr. de Wit, a qualified person as such term is defined in
National Instrument 43-101. Dr. de Wit has reviewed the information
contained herein and approved the contents of this press release.
We seek Safe Harbor.
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