scholarly journals Deep-water channel-lobe transition zone dynamics: Processes and depositional architecture, an example from the Karoo Basin, South Africa

2018 ◽  
Vol 130 (9-10) ◽  
pp. 1723-1746 ◽  
Author(s):  
Hannah L. Brooks ◽  
David M. Hodgson ◽  
Rufus L. Brunt ◽  
Jeff Peakall ◽  
Menno Hofstra ◽  
...  
Keyword(s):  
South Africa ◽  
Transition Zone ◽  
Deep Water ◽  
Water Channel ◽  
Karoo Basin ◽  
Depositional Architecture

Depositional architecture and sequence stratigraphy of the Karoo basin floor to shelf edge succession, Laingsburg depocentre, South Africa

2011 ◽  
Vol 28 (3) ◽  
pp. 658-674 ◽  
Author(s):  
S.S. Flint ◽  
D.M. Hodgson ◽  
A.R. Sprague ◽  
R.L. Brunt ◽  
W.C. Van der Merwe ◽  
...  
Keyword(s):  
South Africa ◽  
Sequence Stratigraphy ◽  
Shelf Edge ◽  
Karoo Basin ◽  
Basin Floor ◽  
Depositional Architecture

Age Controls on the Tanqua and Laingsburg Deep-Water Systems: New Insights on the Evolution and Sedimentary Fill of the Karoo Basin, South Africa

2007 ◽  
Vol 77 (11) ◽  
pp. 901-908 ◽  
Author(s):  
A. Fildani ◽  
N. J. Drinkwater ◽  
A. Weislogel ◽  
T. McHargue ◽  
D. M. Hodgson ◽  
...  
Keyword(s):  
South Africa ◽  
Deep Water ◽  
Water Systems ◽  
Karoo Basin ◽  
Sedimentary Fill

Lithostratigraphy of the Skoorsteenberg Formation (Ecca Group, Karoo Supergroup), South Africa

2017 ◽  
Vol 120 (3) ◽  
pp. 433-446
Author(s):  
H. de V. Wickens ◽  
D.I. Cole
Keyword(s):  
South Africa ◽  
Deep Water ◽  
Regional Distribution ◽  
Water Systems ◽  
Fine Grained ◽  
Karoo Basin ◽  
Porosity And Permeability ◽  
Basin Floor ◽  
Primary Porosity ◽  
Lower Slope

Abstract The Middle Permian Skoorsteenberg Formation is part of the Ecca Group (Karoo Supergroup) of South Africa. It is also known as the ‘Tanqua fan complex’ due to its origin as a deep-water sedimentation unit associated with a prograding deltaic system. The Skoorsteenberg Formation crops out over approximately 650 km2 along the western margin of the Main Karoo Basin. It thins out in a northerly and easterly direction and therefore has a limited extent with cut-off boundaries to the south and north. It is underlain by the Tierberg Formation and overlain by the Kookfontein Formation, the latter being limited to the regional distribution of the Skoorsteenberg Formation. The Skoorsteenberg Formation has a composite thickness of 400 m and comprises five individual sandstone packages, separated by shale units of similar thickness. The sandstones are very fine- to fine-grained, light greyish to bluish grey when fresh, poorly sorted and lack primary porosity and permeability. The Tanqua fan complex is regarded as one of the world’s best examples of an ancient basin floor to slope fan complex associated with a fluvially dominated deltaic system. It has served as analogue for many deep-water systems around the world and continues to be a most sought after “open-air laboratory” for studying the nature of fine-grained, deep-water sedimentation. The fan systems are essentially tectonically undeformed, outstandingly well exposed and contain an inexhaustible amount of information on the deep-water architecture of lower slope to basin floor turbidite deposits.

Lithostratigraphy of the Kweekvlei Formation (Witteberg Group), Cape Supergroup

2017 ◽  
Vol 120 (3) ◽  
pp. 421-432 ◽  
Author(s):  
C. Browning ◽  
M. Reid
Keyword(s):  
South Africa ◽  
Transition Zone ◽  
Distal Part ◽  
Vascular Plant ◽  
Trace Fossil ◽  
Plant Debris ◽  
Lower Carboniferous ◽  
Fossil Assemblage ◽  
Low Diversity ◽  
Storm Wave

AbstractThe Lower Carboniferous, probably Tournaisian, Kweekvlei Formation is part of the Witteberg Group (Cape Supergroup) of South Africa. Together with the overlying Floriskraal Formation, it forms an upward-coarsening succession within the Lake Mentz Subgroup. Sedimentary features of the Kweekvlei Formation suggest deposition in a storm-wave dominated marine setting, within the storm-influenced, distal part of an offshore transition zone environment. This predominantly argillaceous formation preserves a low diversity trace fossil assemblage. Reworked vascular plant debris (including the problematic genus Praeramunculus sp.) and a shark spine have been reported for the Kweekvlei Formation. There are no known stratigraphic equivalents in South Africa.

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