Palaeoenvironmental interpretation of tabular sandstones in the Beaufort Group of the Karoo Basin, South Africa
Date
1992
Authors
Le Roux J.P.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The Klipbankskraal sandstone probably represents a low-sinuosity braided river, as indicated by the low palaeocurrent dispersion, dominance of upper flow-regime plane beds, poorly developed Markov cyclicity, and three-dimensional lithofacies trends. It differs in many respects from the Banksgaten sandstone, for which a high-sinuosity, multichannel (anastomosing?) system is indicated by palaeocurrent data, dominantly lower flow-regime sedimentary structures, strongly developed Markov property, and evidence for point bar sedimentation. The Mooifontein sandstone has a distinctly coarsening-upward basal section and fan-shaped distributary system, suggesting deposition in a lacustrine delta. -from Author
Description
Keywords
Adelaide Subgroup, Beaufort Group, braided river, Markov cyclicity, palaeoenvironment, sandstone, South Africa, Karoo
Citation
South African Journal of Geology
95
06-May
95
06-May