Ryan, P J2015-09-112015-09-112015-09-11http://hdl.handle.net/10539/18628Thesis submitted for the degree of Doctor of Philosophy In the Faculty of Science, University of the Witwatersrand. 1967enStratigraphic and paleocurrent analysis of the Ecca series and Lowermost Beaufort Beds in the Karroo basin of South AfricaThesis