Independent Geologist's Report Mozambique - Syrah Resources Ltd

granitic and pegmatitic intrusions. Neoproterozoic rocks are preserved southwest of
Lake Malawi, in the Zambezi Graben, which trends into northern Zimbabwe. In the
northwest of Mozambique, glaciogenic sediments of the Katanguiana Group can be
correlated with similar rocks in the Katangan of the Central African Copperbelt (Henry
& Wilson, 2006).
Neoproterozoic mineralization includes well-known pegmatite mineralisation including
rare metals (niobium-tantalum), beryllium, lithium minerals, and gemstones (Alto
Ligonha); unzoned rare earth pegmatites (Alto Ligonha); tin pegmatites (Inchope-
Doeroi); K-feldspar (amazonite) tourmaline pegmatites (Monapo-Nacala); and berylbearing
pegmatites (Tete, Cabo Delgado, Niassa and Nampula Provinces). Other
known mineralisation includes copper, iron and gold (Lächelt, 2004).
The Carboniferous marked the onset of rifting in Mozambique, associated with
sedimentation and widespread igneous activity. The Phanerozoic (Permo-
Carboniferous to Lower Jurassic) sedimentary and volcanic rocks of the Karoo
Supergroup were deposited in three intracratonic basins: Alto Zambezi; Rio Lumba;
and Rio Lugenda. The Karoo is largely known for coal, radioactive mineral(s), and gas
deposits. Rare earths, fluorite and apatite have been reported from Cretaceous and
younger intrusives; kimberlites have been report from the Maniamba Graben (Henry &
Wilson, 2006; Lächelt, 2004).
Mid-Cenozoic sediments (continental and marine) occur in the coastal basins. Thick
Plio-Quartenary cover overlies many of the older terrains. Weathering deposits and/or
placer deposits are known from these sediments. Deposits formed as a result of
weathering include bauxite, Al-laterites; kaolin, and bentonite. Placer deposits include
heavy mineral sands, and gold. Peat, kieselguhr and guano deposits also occur
(Lächelt, 2004).
Jacana Resources – Technical Report - Mozambique– September 2011 Page: 12