Diamond-Bearing Gravels Along the Lower Kwango River DRC - Geology and Resource Potential of the Congo Basin - page 333

Gilson- 1

Bandundu

Dekese- 1

Kipala

BRAZZAVILLE

KINSHASA

Kenge

Kikwit

Kipemba

Matadi

Feshi

Tshikapa

Tembo

LUANDA

Lucapa

Malange

Cenozoic
Undetermined Cretaceous
Upper Cretaceous
Lower Cretaceous
Permian-Triassic (Upper Karoo Supergroup)
Carboniferous-Permian (Lower Karoo Supergroup)
Upper Neoproterozoic-Lower Paleozoic (Redbeds)

Faults
Thrusts (Pan African

tectonic fronts)

0 150 300

Km

Proterozoic
Archean

Fig. 16.3 General geology of the Kwango/Cuango river basin in south-western DRC and northern Angola (Linol 2012 ). Red rectangle highlights
the study area

Rocha-Campos ( 1976 ) describes diamictites just west
of Cuango, with boulders of basement granite and gneiss
and red arkoses and shales of the

indicate an age range of Upper Carboniferous to Lower
Permian (Rigby 1973 ). In the Upper Cuango basin these
diamictites are overlain by fine-grained sediments with fish
fossils considered to be Permian-Triassic in age (Teixeira
1948 ).

of
the lower West Congo System. These diamictites are part of
the Lut˜e Series and in NE Angola contain flora which

Schisto-Gr´seux Series

' '