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The Aruba Project consists of five prospecting licenses totaling approximately 4,663 km2 in South-Central Botswana, some 200 km west of the coeval Bushveld Complex in neighboring South Africa. The project area is adjacent to Rio Tinto Exploration and is surrounded by good infrastructure. The projects are located between the cities of Jwaneng and Werda, near the border with the Republic of South Africa. The Property makes up a significant portion of the western margin of the approximately 1300 km2 Molopo Farms Complex, and includes the basal units prospective for Nickel, Copper and PGE mineralization. The western part of the project area is underlain by the highly prospective Transvaal Super Group, which, in South Africa, contain 40% of world Manganese reserves.
The Molopo Farms Complex (MFC) is made up by a well layered lower ultramafic sequence containing; chromite bearing hezburgite, olivine orthopyroxinite and dunite. The upper mafic layers consist of norite, gabbros and diorites with pegmatitic areas. Structurally, the MFC consists of a folded, block-faulted and tilted lopolith now warped into a southwest-plunging syncline and divided into northern and southern lobes by the east-northeast trending Jwaneng-Makopong and northeast-trending Werda-Kgare shear zones. Parts of the intrusion and its roof-rocks were later eroded and unconformably overlain by Waterberg Group and Kalahari sands. Current thinking is that the MFC was emplaced by two sets of dykes forming two sub-lopoliths and sills.
Silverfish aims to develop a methodical exploration strategy utilizing methods to target both Bushveld type PGM-Chromite “reefs” and ultramafic-hosted Ni-Cu massive sulphides.