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WhyAfrica’s Hawks Eye is on Adavale’s Kabanga in Tanzania

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Exploration work at Adavale Resources’s Kabanga nickel project in Tanzania. Image credit: Adavale Resources

22 March 2021 – ASX listed Adavale Resources has released results of its initial exploration program at the Kabanga nickel deposit in Tanzania. This week, WhyAfrica’s Hawks Eye is on Adavale’s Kabanga project in Tanzania.   

The objective of Adavale’s exploration programs is to find an analogue to the Kabanga nickel deposit. According to Adavale CEO Allan Ritchie, the preliminary exploration techniques that are being utilised, allow for the identification of features displayed by Kabanga, notably elevated nickel and copper in soil samples; a conductive electromagnetic response resulting from massive sulphides; and magnetic lows typical of underlying ultramafic host rocks within the Kibaran Belt.

“The current work program that started in February 2021, is adding the levels of detail necessary for identifying the kind of mineralisation Adavale is using for the design and sequence of its maiden drilling program. We are delighted that early results are in line with our expectations and validate the vectors and process we are using for the design of our drill targets. We are eager to mobilise the rigs and get holes in the ground but the current work being conducted is methodical, very cost effective and providing

meaningful data. Given that, we will push to complete the current program asap so that we have the highest possible level of confidence that the targets we have selected will deliver meaningful intercepts when drilling commences during Q2,” says Ritchie.

Within the Kabanga nickel deposit the northern ore body is a steeply dipping tabular body associated with a subvertical ultramafic pipe and has a strike of several hundred metres, whilst the southern ore body has a strike of about 650m and is associated with an ultramafic sill that extends for several kilometres. Exploration is being aimed at locating similar ultramafic intrusions and associated mineralisation. Sills and intrusions within the Kibaran Belt are generally conformable to the sediments which have a north east to south west strike and frequently exploit thrust planes and fissile shaly layers adjacent to quartzite layers although, as is the case at the northern ore body at the Kabanga nickel deposit, the intrusions may be in the form of subvertical pipes/chonoliths and in such cases, can have quite a small surface exposure.

The work program implemented by Adavale is designed to assist in the identification of the host ultramafic intrusions and ultimately any mineralisation that may be associated with them. Exploration work in December 2020 began with a relatively broad spaced sampling program, with a line spacing of 1km and a station spacing of 500m. The objective of the program was to see if geochemical signatures could be obtained that may indicate the presence of underlying ultramafic rocks and to determine how well that data corresponds to favourable geophysical features. Preliminary targets for the subsequent infill soil sampling program that is currently underway, have already been determined based on geophysical data but has been refined based on the recently acquired soil geochemical data derived from the reconnaissance soil sampling program.

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