...C.S. Cheney; H.K. Rutter (née Jones); J. Farr; P. Phofuetsile Abstract The Matsheng area, located in the Kalahari semi-desert of southwestern Botswana, has in recent years formed the focus for development in the Kgalagadi District. The availability of an adequate groundwater supply is critical...

...Fig. 1. Geologic maps of southern Africa and east Botswana. (a) Map showing the location of the study area in northeast Botswana and with respect to the Zimbabwe and Kaapvaal cratons (adapted from Maier et al., 2008 ). (b) Map showing the location of the Tati greenstone belt within...

... ongoing exploration to locate the ultimate source rocks. This study highlights some of the typical characteristics of distal KIM anomalies within the Kalahari environment with reference to a major kimberlitic garnet anomaly located in the southwestern Makgadikgadi basin in northern Botswana...

...T. Majaule; R. P. Hall; D. J. Hughes Abstract The Matsitama supracrustal belt (MSB) of northeastern Botswana occurs at the southwestern extremity of the Zimbabwe Craton. It comprises four composite lithostratigraphic associations which are dominated by shallow-water clastic and chemical...

... ( Wasson 1983 ) was considered by Bullard et al. (1995) in southwestern Botswana where dune forms are pronounced at the margins of incising drainage lines, the fluviatile sediments appearing to offer a favourable source of material for dune building. As the dune forms there are on both sides...

...M.P. Modisi; E.A. Atekwana; A.B. Kampunzu; T.H. Ngwisanyi Abstract High-resolution aeromagnetic data from the nascent Okavango rift in northwest Botswana provide an unprecedented view of rift kinematics during the incipient stages of continental extension. Crosscutting relationships between west...

...S. McCourt; A.B. Kampunzu; Z. Bagai; R.A. Armstrong Abstract New and published geological, geochemical and U-Pb zircon age data are combined to model the architecture and evolution of the Archaean crust in north-eastern Botswana. Four distinct crustal terranes are identified. The Francistown...

...Joel E. Podgorski; Alan G. Green; Lesego Kgotlhang; Wolfgang K.H. Kinzelbach; Thomas Kalscheuer; Esben Auken; Tiyapo Ngwisanyi Abstract The near juxtaposition of the Makgadikgadi Basin (Botswana), the world’s largest saltpan complex, with the Okavango Delta, one of the planet’s largest inland...

... with the ongoing southwestern extension activities of the East African Rift System ( Materna et al., 2019 ), which would lead to a seismic sequence in a northeast–southwest trend. Mantle fluid originated from the Okavango Rift also has been proposed to trigger seismic activity in central Botswana ( Paulssen et al...

..., and therefore no reconstruction is here proposed. This sedimentological context strongly departs from the one characterizing the southwestern part of the KKB in Botswana and Namibia (the Gemsbok and Aranos basins; Fig. 10 ), where conventional glaciogenic diamictites associated with striated pavements...

...), and the Vereeniging top seam in the New Vaal Colliery, northern Karoo Basin. The upper coal zone (UCZ) palynoflora of the SFB correlates closely with the Gwembe Formation (mid-Zambezi Basin, Zambia), Biozone E of the Waterberg Coalfield (Ellisras Basin), and Biozone KK 3 (Kalahari Karoo Basin, Botswana). A new radio...

...Wesley S. Hall; Holly J. Stein; Andrew R.C. Kylander-Clark; Murray W. Hitzman; Yvette D. Kuiper; Catherine Knight; M. Stephen Enders Abstract The ages of sedimentation and copper-silver mineralization in the late Meso- to Neoproterozoic Kalahari Copperbelt in Botswana, an economically significant...

...R.B.M. Mapeo; A.B. Kampunzu; R.A. Armstrong Abstract The Precambrian rocks of northern Botswana comprise poorly exposed igneous complexes, high-grade metamorphic rocks, as well as sedimentary sequences including mainly siliciclastic and carbonate rocks. New U—Pb SHRIMP data are presented...

...T. Andersen; M.A. Elburg; J. Lehmann Abstract Detrital zircon grains from three samples of sandstone from the Tswaane Formation of the Okwa Group of Botswana have been dated by U-Pb and analysed for Hf isotopes by multicollector LA-ICPMS. The detrital zircon age distribution pattern of the detrital...

... associated with well-developed continental rifts. In contrast, knowledge of rifting processes at their early stage is still significantly limited. Here we present results from a teleseismic P-wave tomography investigation of the incipient Okavango rift zone (ORZ), which is located at the southwestern...

...H. Wanke Abstract In this study four subparallel faults have been recognised in the Eiseb Block in the field and in Landsat TM 5 scenes. Their extension into Botswana’s Gomare and Kunyere faults, which delineate the Okavango Rift/Botswana, has been traced. In the Eiseb Block abrupt termination...

...R.B.M. Mapeo; R.A. Armstrong; A.B. Kampunzu; L.V. Ramokate Abstract SHRIMP U-Pb zircon dating of granitoids from borehole cores from the Amalia-Kraaipan granite-greenstone terrain of southeast Botswana yielded dates of: 2939±9 Ma for the biotite granite gneiss, 2943±9 Ma for the pink granite...

... with the Timeball Hill Formation. ( Coetzee, 2001 ) recognised the same 3-fold subdivision in the stratotype area of the Duitschland Formation and explicitly correlated both formations. The siliciclastics at the base of the Pretoria Group can be traced into the western study area and Botswana ( Figure 1...

... of Karoo and Paraná plumes and Botswana dyke swarm taken from Figure 2 . BH – Bié highlands. In the early Cretaceous there appear to be only two major rivers which might be interpreted as dome-flank systems initiated by the Karoo Plume – the Kalahari and the Karoo Rivers recognized by de Wit...