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Location: 0 km W from Kolwezi, DRC
Commune de DilalaKolweziDRC7188
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In 2024, a 5% transfer of KCC's equity to the DRC government occurred in accordance with the DRC Mining Code.
The mineralized zones are at the western end of the Katangan copper belt. These deposits are hosted mainly by metasedimentary rocks of the late Proterozoic Katangan system, a 7km thick succession of sediments with minor volcanics, volcanoclastics and intrusive rocks.Primary mineralisation, in the form of sulphides, within the Lower Roan is associated with the Dolomies Stratified (DSTRAT) and Roches Siliceuses Feuilletées Foliated (Laminated) and Silicified Rocks (RFS) for the Ore-body Inferior (OBI) and the Schistes De Base or Basal Schists and Shales Dolomitiques Superieurs (SDB) or Upper Dolomitic Shales for the Ore-body Superior (OBS) and is thought to be syn-sedimentary in origin. Typical primary copper sulphide minerals are bornite, chalcopyrite, chalcocite and occasional native copper while cobalt is in the form of carrolite. The mineralization occurs as disseminations or in association with hydrothermal carbonate alteration and silicification.These deposits are hosted mainly by metasedimentary rocks of the Late Proterozoic Katangan System, a 7km thick succession of sediments with minor volcanics, volcanoclastics and intrusives. Geochronological data indicate an age of deposition of the Katangan sediments of ~880 Ma and deformation during the Katangan Orogeny at <650 Ma. This deformation led to the formation of the northwest-southeast trending Lufilian Arc, which extends from Namibia on the west coast of Africa through to Zambia, lying to the south of the DRC. Within the DRC, the zone extends for more than 300 km from Kolwezi in the northwest to Lubumbashi in the southeast.Stratigraphically, the rich copper and cobalt deposits found in Zambia and the DRC occur localised in the Roan Supergroup (Roan). The Roan occurs at the base of the Katanga succession, overlying the basement rock of Kibaran age (Mid-Proterozic). The Roan is separated from the overlying rocks of the Kundelungu and the Nguba Groups by a conglomerate, the Grand Conglomerat. The Nguba is composed of sandstones and shales with a basal conglomerate while the Kundelungu consists essentially of sediments and is separated from the Nguba by a conglomerate, the Petit Conglomerat. Within the Lufilian Arc are large scale east west to northwest-southeast trending folds with wavelengths extending for kilometres. The folds are faulted along the crests of the anticlines through which rocks of the Roan Group have been diapirically injected into the fault zones, squeezed up fault planes and over thrust to lie above rocks of the younger Kundelungu. The overthrusted Roan lithologies occur as segments or fragments on surface which are intact units preserving the original geological succession within each of the fragments. A fragment could be of hundreds of metres aligned across the fault plane.
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