Page 10 - Leshobo Technical Report_October2016
P. 10
1. INTRODUCTION
Topbram Initiatives is a subsidiary of Geopoint Africa, which is a mineral resources
development company in Africa, with its head offices in Polokwane, Republic of South
Africa. Geopoint Africa has over the years focused on discovering scalable new
frontiers mineral deposits in Africa. Geopoint Africa has on behalf of its subsidiary
embarked on the evaluation of the Leshobo property which is located in the
Magisterial District of Taung, North West Province, South Africa. This report presents the
findings of desktop studies, reconnaissance surveys, detailed geological and
geochemical surveys conducted by the time of writing this report.
The terrain in and around the permit area possesses extensive deposits of limestone
suitable for multipurpose. Limestone (CaCO3) probably has the largest number of
commercial applications of all the industrial minerals. These include construction
(aggregate, rail ballast and dimension stone), mineral fillers (in paper, paint, plastic,
rubber and pharmaceuticals), adhesives, abrasives, fertilisers, food additives,
environmental application (acidity neutralisation, flue gas desulphurisation, soil
conditioning and stabilisation), and production of cement, lime and calcium chemicals.
These applications are defined by the required chemical properties (such as lime, silica,
magnesia and iron contents), the physical properties (such as particle size distribution,
colour and surface area) and the mechanical properties (such as strength,
abrasiveness and durability).
The largest Limestone resources in South Africa are contained in the upper part of the
Campbell Rand Subgroup, which crop out in the Northern Cape and part of the
Bokone Bophirima Provinces. These deposits hosts medium-high grade limestone and
has been mined in large scale since 1920s.
The Griqualand West Basin of the Transvaal Supergroup in Northern Cape and Bokone
Bophirima Province is comprised of carbonate sediments which are covered by more
recent travertine and calcrete deposits which are mined at various places (Wilson,
2012).
The most important travertine or tufa deposits in South Africa have been reported to
be along the 250 km long Ghaap Plateau escarpment that stretches from south of
Kimberley upto Vryburg in the North West Province.
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