...R.A. Muir; E.M. Bordy; J.S.V. Reddering; J.H.A. Viljoen Abstract The Jurassic – Cretaceous Kirkwood Formation forms part of the Uitenhage Group, the earliest deposits to fill Mesozoic rift basins that developed in what is now the southern Cape of South Africa during the breakup of Gondwana...

... for Geoscience , 443 – 460 . Whittingham J.K. , 1987 , Palaeozoic Geology of Steytlerville-Klipplaat-Kirkwood-Paterson area, Eastern Cape , Cape Geological Survey of South Africa, Report No. 1987–0053 , 37 pp. ...

.... , 2017b . Lithostratigraphy of the Kirkwood Formation (Uitenhage Group), including the Bethelsdorp, Colchester and Swartkops Members, South Africa . South African Journal of Geology , 120 , 281 – 293 . Muir , R.A. , Bordy , E.M. , Frei , D. and Mundil , R. , 2018 . Recalibrated...

... = George; H = Heidelberg; HN = Hankey; HR = Herbertsdale; K = Kirkwood; M = Mossel Bay; O = Oudtshoorn; P = Paterson; PE = Port Elizabeth; U = Uitenhage; W=Worcester. The Enon Formation is both the oldest and most proximal formation occupying the Mesozoic rift basins of South Africa ( Figure 1...

... with the main fault trace, which casts doubt on this inferred north-northwest–south-southeast to north-south stress direction and instead indicates a north-northeast–south-southwest main principal stress. Moreover, structural data presented by Kirkwood (1989) for this fault collectively indicate a north...

...Ryan T. Coppersmith; Christopher Slack; Hayley Cawthra; Paul Bierman; Jason Drebber ABSTRACT Field and desktop mapping studies were conducted for the stable continental region in the Western Cape Province of South Africa to characterize fault activity of four fault systems, including the Worcester...

... Cretaceous deposit reveals first evidence of a post-wildfire debris flow in the Kirkwood Formation, Algoa Basin, Eastern Cape, South Africa . Cretaceous Research , 56 , 161 – 179 . Said , R. , 1971 . Explanatory note to accompany the geological map of Egypt . Geological Survey of Egypt...

...Figure 1. Map of terraces in lower Sundays River valley (South Africa) and sample locations, modified from Hattingh (1994) . Site abbreviations: KCS—Kirkwood; UK—Uitkyk; JV—Jagvlak; CL—Canal; UL—Unilow; LL—Lower Lookout; BRW—Borrow Pit; RRC—Railroad Cut. Inset shows South Africa with approximate...

.... , 1998 , Explosion of volcaniclastic sediments by andesite dike intrusion: Cape Town , South Africa , International Association of Volcanology and Chemistry of the Earth’s Interior International Volcanology Congress Proceedings , p. 29 . Kano , K. , 2002 , Middle Miocene volcaniclastic...

... in a regional context shown in the inset. The pre-Carboniferous geology is modified from Kirkwood ( 1989 ) and Brisebois et al. ( 1991 ). Inset is modified from Gibling et al. ( 1992 ). In inset: GRF, Grande-Rivière fault; GPF, Grand-Pabos fault system. In main map: locality 1, the Murphy Creek exposures of La...

... & Kirkwood, 2000 ; Malo, 2001 ). Figure 4. Simplified stratigraphic columns for the Connecticut Valley–Gaspé (CVGT) and the Merrimack (MT) troughs. Note that discontinuous volcanic rock units occur at various stratigraphic levels within both sequences. R – regression; T – transgression. Absolute...

... in the Teton Range is in the Kaapvaal craton of South Africa. The Kaapvaal craton was assembled between 3.6 and 3.2 Ga. Between 3.1 and 3.0 Ga, Cordilleran-type plutons were emplaced in an arc that extends across the northern and western margins of the craton. Poujol et al. ( 2003 ) ascribe these plutons...

...C.R. Penn-Clarke; J.N. Theron Abstract The Tra-Tra Formation is a predominantly argillaceous, shallow marine to paralic sedimentary succession of Eifelian (Middle Devonian) age within the Bokkeveld Group (Cape Supergroup) that crops out extensively within the Cape Fold Belt of South Africa...

... ( 1983 ) mentioned camarasaurid teeth from the Late Jurassic–Early Cretaceous Kirkwood Formation in South Africa, their figures do not show any constriction at the base of the crown and their material rather suggests a brachiosaurid sauropod. We wish to thank the NOC of Libya for having authorized...

... Gummi, Copale und andere Harze Afrikas . Chemische Revue 5 ( 9 ): 172 – 178 . https://doi.org/10.1002/lipi.18980050903 . Gomez B , Bamford M , Martínez-Delclòs X. 2002 a. Lower Cretaceous plant cuticles and amber (Kirkwood Formation, South Africa) . Comptes Rendus...

... in other Archean provinces are often marked by a distinct contrast in isotopic character (e.g., South Africa, Barton and Key 1981 ; Slave Province, Davis and Hegner 1992 ; Isachsen and Bowring 1994 ). The Sacawee block differs from these examples because its isotopic characteristics are similar to those...

... . Mineralogical, geochemical and structural characteristics of quartz-arenites of the Witpoort Formation (Cape Supergroup) near Kirkwood, South Africa . South African Journal of Geology , 114, 249 – 264 . Potter , R.W. II , 1977 . Pressure correction for fluid – inclusion homogenization...