Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Stephan Coetzee"'
Autor:
Sorcha Diskin, Susan Ringrose, Lin Cassidy, Stephan Coetzee, Thebe Kemosidile, Wilma Matheson, Mary Seely
Publikováno v:
Transactions of the Royal Society of South Africa. 73:143-157
The present work considers morphological and sedimentary evidence from floodplain island sediments in the ephemeral Kuiseb river of central coastal Namibia. Morphologically the islands constitute p...
Publikováno v:
Transactions of the Royal Society of South Africa. 69:187-193
Topographic and sediment work in the Kuiseb river, currently an ephemeral stream in central Namibia, has shown that floodplain deposition took place mainly downstream from zones of significant external sediment input. Two floodplain types are identif
Autor:
C. Harris, Lin Cassidy, Wilma Matheson, Stephan Coetzee, Sorcha Diskin, Anson W. Mackay, Susan Ringrose
Publikováno v:
Earth Surface Processes and Landforms. 39:1167-1187
The Boteti palaeo-estuary in northern Botswana is located where the endoreic Boteti river, an overflow from the regional Okavango river system, enters the Makgadikgadi pans. The present work considers diagenetic silica and calcium carbonate dominated
Autor:
Joseph Allotey, Berhanu A. Gashe, Sisai Mpuchane, Gervas Y. Murindamombe, Stephan Coetzee, Maitshwarelo Ignatius Matsheka, E B Khonga
Publikováno v:
Food and Nutrition Sciences. :1668-1678
Biltong is a dried ready to eat meat product that is produced and consumed to a large extent in Botswana. A study was undertaken with the objective of determining the microbial quality and isolating and identifying the predominant bacteria and fungi
Publikováno v:
International Journal of Environmental Health Research. 20:27-41
The effects of traditionally used medicinal and cosmetic clays in southern Africa on selected microorganisms were studied using microbiological media. The clay pH, microchemical composition, kind of associated microorganisms and antimicrobial activit
Autor:
Bernard Vink, Thebe Kemosidile, P. Huntsman-Mapila, W. S. Downey, Cornelis Vanderpost, Dikitso Kolokose, Susan Ringrose, Stephan Coetzee, Martin Fey
Publikováno v:
Geomorphology. 101:544-557
This work considers the spatial distribution and ages of western MOZ basin siliclastic sediments prior to providing insights into the diagenesis of degraded dune and alluvial fan sands. Previously published and new TL/OSL ages imply that extensive ov
Autor:
Ali B Kampunzu, W. S. Downey, Cornelis Vanderpost, M. Modisi, Susan Ringrose, Stephan Coetzee, Jean-Jacques Tiercelin, Anson W. Mackay, P. Huntsman-Mapila
Publikováno v:
Quaternary International
Quaternary International, Elsevier, 2006, 148 (1), pp.51-64. ⟨10.1016/j.quaint.2005.11.029⟩
BASE-Bielefeld Academic Search Engine
Quaternary International, Elsevier, 2006, 148 (1), pp.51-64. ⟨10.1016/j.quaint.2005.11.029⟩
BASE-Bielefeld Academic Search Engine
Sediment samples from a continuous 4.6 m profile in the dry bed of Lake Ngami in NW Botswana were analysed for geochemistry and dated using both 14C and TL methods. Certain units in the profile were found to be diatom rich and these, with the geochem
Autor:
Cornelis Vanderpost, W. S. Downey, Susan Ringrose, Ali B Kampunzu, Wilma Matheson, P. Huntsman-Mapila, Stephan Coetzee, Bernard Vink
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology
Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2005, 217 (3-4), pp.265-287. ⟨10.1016/j.palaeo.2004.11.024⟩
Palaeogeography, Palaeoclimatology, Palaeoecology, Elsevier, 2005, 217 (3-4), pp.265-287. ⟨10.1016/j.palaeo.2004.11.024⟩
This work considers new evidence for palaeo-environmental change taking place during the Pleistocene in northern Botswana. Duricrusted strandlines along the northeastern margin of Sua Pan provide palaeo-environmental data pertaining to the Makgadikga
Publikováno v:
Microscopy research and technique. 67(5)
The newer generation of environmental scanning electron microscopes (ESEMs) allows samples to be viewed under a range of different vacuum conditions. No specific sample preparation protocols are required with the ESEMs, as fresh, unfixed samples are