More information:

Martin, H. 1964. Beobachtungen zum Problem der jung-Präkambrischen glazialen Ablagerungen in Südwestafrika. Geologische Rundschau, 54(1): 115-127


Description:

The Late Precambrian Numees Formation contains besides very thick deposits of tillite-like habit also laminated siltstones resembling glacial varved rocks. These enclose coarser sand grains, pebbles and boulders of all sizes which have dropped from above into the soft sediment.

Summary / Notes:

The Late Precambrian Numees Formation contains besides very thick deposits of tillite-like habit also laminated siltstones resembling glacial varved rocks. These enclose coarser sand grains, pebbles and boulders of all sizes which have dropped from above into the soft sediment. As only floating ice can have transported these large components, the conclusion is inescapable that the laminated siltstones are true glacial varves and that the tillite-like rocks are true tillites. This evidence for Late Precambrien glacial conditions makes it highly probable that other formations of a similar age, which have been described as tillites, are also of glacial origin. The Buschmannsklippe Formation begins locally with a tillite which seems to be more or less contemporaneous with the Numees Formation. A high percentage of facetted and deeply striated pebbles and boulders makes it probable that this tillite originated as a basal moraine. The Nama tillite in the Klein Karas Mountains is stratigraphically not very far removed and in time probably not very much younger than the Numees tillite. Striated and grooved floors are associated with this tillite. The Chuos tillite and the Otavi tillite of the Damara System are contemporaneous deposits of Late Precambrian age. Their age relative to the Numees tillite is not known. The Chuos- and the Otavi tillite are probably glaciomarine drifts. For these a glacial origin cannot be proved with the same degree of conclusiveness as for the above described deposits. However, the existence of glacial conditions in the Late Praecambrian having been proved for an adjoining area, a glacial origin may reasonably be assumed for the tillite-like rocks of the Damara System too. Both the Numees tillite and the Otavi tillite are intimately associated with sedimentary iron ore deposits. Oxygen deficiency in stagnating bottom waters, caused by an ice cover, is thought to be responsible for this peculiar combination of sediments. The excellent evidence for the existence of glacial conditions during parts of the Late Precambrian, found in South West Africa, strongly supports the assumption that the many tillite-like deposits of a similar age, which have been described from Central and West Africa are also of glacial origin.

Year: 1964

Type: Journal Article

URL: http://link.springer.com/article/10.1007/BF01821173


Top 50 related results:

You may also be interested in the following items which are on a similar or related topic, listed in order of similarity.

Results per page:

Results: 1 to 50 of 50

To FILTER: Use the pale green row to filter the results on this page. Type in text or select from the year list.

Rows matching filter(s): All
What is this row? 
Data titleYearOriginFile typeDownloadkml/kmz
Bluck, B.J., Ward, J.D., Cartwright, J. and Swart, R. 2007. The Orange River, southern Africa: an extreme example of a wave-dominated sediment dispersal system in the South Atlantic Ocean. Journal of the Geological Society, 164: 341–351
  » More info & related results
2007 Journal Article715 kb pdf
Preview
Smith, R.M.H. and Mason, T.R. 1998. Sedimentary environments and trace fossils of tertiary Oasis deposits in the Central Namib Desert, Namibia. Palaios, 13(6): 547-559
  » More info & related results
1998DRFN DLIBJournal Article
Bierman, P.R. and Caffee, M. 2001. Slow Rates of Rock Surface Erosion and Sediment Production across the Namib Desert and Escarpment, Southern Africa. American Journal of Science, 301: 326–358
  » More info & related results
2001 Journal Article2.65 mb pdf
Preview
Srivastava, P., Brook, G.A. and Marais, E. 2005. Depositional environment and luminescence chronology of the Hoarusib River Clay Castles sediments, northern Namib Desert, Namibia. Catena, 59(2): 187–204
  » More info & related results
2005 Journal Article
Brunotte, E., Maurer, B., Fischer, P., Lomax, J. and Sander, H. 2009. A sequence of fluvial and aeolian deposits (desert loess) and palaeosoils covering the last 60 ka in the Opuwo basin (Kaokoland/Kunene Region, Namibia) based on luminescence dating. Quaternary International, 196(1–2): 71–85
  » More info & related results
2009 Journal Article
Brunotte, E. and Sander, H. 2000. Loess accumulation and soil formation in Kaokoland (Northern Namibia) as indicators of Quaternary climatic change. Global and Planetary Change, 26(1–3): 67–75
  » More info & related results
2000 Journal Article
Diester-Haass, L., Heine, K., Rothe, P. and Schrader, H. 1988. Late Quaternary history of continental climate and the Benguela Current off South West Africa. Palaeogeography, Palaeoclimatology, Palaeoecology, 65(1–2): 81–91
  » More info & related results
1988 Journal Article
Leggett, K., Fennessy, J. and Schneider, S. 2005. Flood-borne sediment analysis of the Hoanib River, northwestern Namibia. Journal of Arid Environments, 62(4): 587–596
  » More info & related results
2005 Journal Article
Embley, R.W. and Morley, J.J. 1980. Quaternary sedimentation and paleoenvironmental studies off Namibia (South-West Africa). Marine Geology, 36(3–4): 183–204
  » More info & related results
1980 Journal Article
Germs, G.J.B. 1995. The Neoproterozoic of southwestern Africa, with emphasis on platform stratigraphy and paleontology. Precambrian Research, 73(1–4): 137–151
  » More info & related results
1995 Journal Article
Wanke, H. und Wanke, A. 2007. Lithostratigraphy of the Kalahari Group in northeastern Namibia. Journal of African Earth Sciences, 48(5): 314–328
  » More info & related results
2007 Journal Article
Luchs, T., Brey, G.P., Gerdes, A. and Höfer, H.E. 2013. The lithospheric mantle underneath the Gibeon Kimberlite field (Namibia): A mix of old and young components—Evidence from Lu–Hf and Sm–Nd isotope systematics. Precambrian Research, 231: 263–276
  » More info & related results
2013 Journal Article
Davies, C.J. and Coward, M.P. 1982. The structural evolution of the Gariep arc in southern Namibia (South-West Africa). Precambrian Research, 17(3–4): 173–198
  » More info & related results
1982 Journal Article
Buch, M.W. und Rose, D. 1996. Mineralogy and geochemistry of the sediments of the Etosha Pan Region in northern Namibia: a reconstruction of the depositional environment. Journal of African Earth Sciences, 22(3): 355–378
  » More info & related results
2006 Journal Article
Saylor, B.Z., Grotzinger, J.P. and Germs, G.J.B. 1995. Sequence stratigraphy and sedimentology of the Neoproterozoic Kuibis and Schwarzrand Subgroups (Nama Group), southwestern Namibia. Precambrian Research, 73(1–4): 153–171
  » More info & related results
1995 Journal Article
Stanistreet, I.G., Kukla, P.A. and Henry, G. 1991. Sedimentary basinal responses to a Late Precambrian Wilson Cycle: the Damara Orogen and Nama Foreland, Namibia. Journal of African Earth Sciences (and the Middle East), 13(1): 141–156
  » More info & related results
1991 Journal Article
Dupont, L. and Behling, H. 2006. Land–sea linkages during deglaciation: High-resolution records from the eastern Atlantic off the coast of Namibia and Angola (ODP site 1078). Quaternary International, 148(1): 19–28
  » More info & related results
2006 Journal Article
Bremner, J.M. and Willis, J.P. 1993. Mineralogy and geochemistry of the clay fraction of sediments from the Namibian continental margin and the adjacent hinterland. Marine Geology, 115(1–2): 85–116
  » More info & related results
1993 Journal Article
Lancaster, N. 2014. Dune systems of the Namib Desert – a spatial and temporal perspective. Transactions of the Royal Society of South Africa
  » More info & related results
2014 Journal Article
Wiggs, G.F.S., Bullard, J.E., Garvey, B. and Castro, I. 2002. Interactions Between Airflow and Valley Topography with Implications for Aeolian Sediment Transport. Physical Geography, 23(5): 366-380
  » More info & related results
2002 Journal Article
Buzer, J.S. and Sym, S.D. 1983. Diatoms and pollen in a trial core from Sandwich Harbour, South West Africa (Namibia). British Phycological Journal, 18(2): 121-129
  » More info & related results
1983 Journal Article
Eitel, B., Kadereit, A., Lomax, J., Hilgers, A., Blümel, W-D., Hüser, K. A chronology of fluvial dynamics of the Hoanib River, NW-Namibia, based on optically stimulated luminescence dating
  » More info & related results
 Poster2.98 mb pdf
Preview
Hipondoka, M.H.T., Busche, D. and Kempf, J. 2004. Source of Lunette dune sediments: A geomorphic terrain analysis apprach in Etosha National Park, Namibia. Erdkunde, 58: 212-220
  » More info & related results
2004 Journal Article213 kb pdf
Preview
Hipondoka, M.H.T., Jousse, H., Kempf, J. and Busche, D. 2006. Fossil evidence for perennial lake conditions during the Holocene at Etosha Pan, Namibia. South African Journal of Science, 102: 93-95
  » More info & related results
2006 Journal Article526 kb pdf
Preview
Pickford, M., Senut, B., Hipondoka, M., Person, A., Segalen, L., Plet, C., Jousse, H., Mein, P., Guerin, C., Morales, J. and Mourer-Chauvire, C. 2009. Mio-Plio-Pleistocene geology and palaeobiology of Etosha Pan, Namibia. Communications of the Geological Survey of Namibia, 14: 95-139
  » More info & related results
2009 Journal Article4.71 mb pdf
Preview
Brook, G.A., Cherkinsky, A., Railsback, L.B., Marais, E. and Hipondoka, M.H.T. 2013. 14C Dating of Organic Residue and Carbonate from Stromatolites in Etosha Pan, Namibia: 14C Reservoir Effect, Correction of Published Ages, and Evidence of >8-m-Deep Lake During the Late Pleistocene. In: Jull, A.J.T. and Hatté, C. (eds). Proceedings of the 21st International Radiocarbon Conference. Radiocarbon, 55(2–3): 1156–1163
  » More info & related results
2013 Journal Article217 kb pdf
Preview
Anderson, L., Maslin, M.A., Jansen, F., Lin, H., Pufahl, P.K., Pérez, M., Brüchert, V. and Vidal, L. 1998. Lithostratigraphic Summary For Leg 175: Angola-Benguela Upwelling System. Proceedings of the Ocean Drilling Program, Initial Reports, 175: 533-542
  » More info & related results
1998 Journal Article707 kb pdf
Preview
Heine, K. 1987. Jungquartäre fluviale Geomorphodynamik in der Namib, Südwestafrika/Namibia. Zeitschrift für Geomorphologie/Supplement, 66: 113-134
  » More info & related results
1987 Journal Article12.7 mb pdf
Preview
Reid, D.L., Malling, S. and Allsopp, H.L. 1988. Rb-Sr Ages of granitoids in the Rehoboth-Nauchas area, South West Africa/Namibia. Communications of the Geological Survey of S.W.Africa/Namibia, 4: 19-27
  » More info & related results
1988DRFN DLIBReport924 kb pdf
Preview
Wood, R.A., Grotzinger, J.P. and Dickson, J.A.D. 2002. Proterozoic Modular Biomineralized Metazoan from the Nama Group, Namibia. Science, 296(5577): 2383-2386
  » More info & related results
2002 Journal Article
Saylor, B.Z., Poling, J.M. and Huff, W.D. 2005. Stratigraphic and chemical correlation of volcanic ash beds in the terminal Proterozoic Nama Group, Namibia. Geological Magazine, 142(5): 519-538
  » More info & related results
2005 Journal Article
Holzförster, F., Stollhofen, H. and Stanistreet, I.G. 1999. Lithostratigraphy and depositional environments in the Waterberg-Erongo area, central Namibia, and correlation with the main Karoo Basin, South Africa. Journal of African Earth Sciences, 29(1): 105–123
  » More info & related results
1999 Journal Article
Hay, W.W. and Brock, J.C. 1992. Temporal variation in intensity of upwelling off southwest Africa. Geological Society, 64: 463-497
  » More info & related results
1992 Journal Article
Diester-Haass, L., Meyers, P.A. and Rothe, P. 1992. The Benguela Current and associated upwelling on the southwest African Margin: a synthesis of the Neogene-Quaternary sedimentary record at DSDP sites 362 and 532. Geological Society, 64: 331-342
  » More info & related results
1992 Journal Article
Teller, J.T. and Lancaster, N. 1986. Lacustrine sediments at Narabeb in the central Namib Desert, Namibia. Palaeogeography, Palaeoclimatology, Palaeoecology, 56(3–4): 177–195
  » More info & related results
1986 Journal Article
McG. Miller, R. 1997. Chapter 11: The owambo basin of northern namibia. Sedimentary Basins of the World, 3: 237–268
  » More info & related results
1997 Book, Book Section, Booklet
Porada, H. and Behr, H.J. 1988. Setting and sedimentary facies of late Proterozoic alkali lake (playa) deposits in the southern Damara belt of Namibia. Sedimentary Geology, 58(2–4): 171–194
  » More info & related results
1988 Journal Article
Zhu, B. and Yu, J. 2014. Aeolian sorting processes in the Ejina desert basin (China) and their response to depositional environment. Aeolian Research, 12: 111–120
  » More info & related results
2014 Journal Article
Piper, J.D.A. 1975. The Palaeomagnetism of Precambrian Igneous and Sedimentary Rocks of the Orange River Belt in South Africa and South West Africa. Geophysical Journal of the Royal Astronomical Society, 40(3): 313–344
  » More info & related results
1975 Journal Article
Hoffman, P.F. 2011. Strange bedfellows: glacial diamictite and cap carbonate from the Marinoan (635 Ma) glaciation in Namibia. Sedimentology, 58(1): 57–119
  » More info & related results
2011 Journal Article
Ringrose, S., Matheson, W., Seely, M., Cassidy, L., Coetzee, S. and Kemosidile, T. 2014. Aspects of floodplain deposition in semi-arid ephemeral rivers, examples from the Kuiseb river valley, central Namibia. Transactions of the Royal Society of South Africa, 69(3): 187-193
  » More info & related results
2014 Journal Article
Rogers, J. and Rau, A.J. 2006. Surficial sediments of the wave-dominated Orange River Delta and the adjacent continental margin off south-western Africa. African Journal of Marine Science, 28(3-4): 511-524
  » More info & related results
2006 Journal Article
Sandelowsky, B.H., Scholz, H. and Ahlert, K. 1976. Ancient tracks near Tsondab vlei. Madoqua, 9(3): 57-58
  » More info & related results
1976 Journal Article620 kb pdf
Preview
Monteiro, P.M.S., Van der Plas, A. and Pascall, A. 2007. Cross-shelf biogeochemical characteristics of sediments in the central Benguela and their relationship to overlying water column hypoxia. African Journal of Marine Science, 29(1): 37–47
  » More info & related results
2007 Journal Article911 kb pdf
Preview
Wilkinson, M. J. 1988. Arid landscapes. The geomorphology of Southern Africa. Southern Book Publishers (Pty) Ltd. Halfway House, 78-102
  » More info & related results
1988DRFN DLIBBook, Book Section, Booklet13.78 mb pdf
Preview
Kinahan, J., Pallett, J., Vogel, J., Ward, J. and Lindeque, M. 1991. The occurrence and dating of elephant tracks in the silt deposits of the lower !Khuiseb River, Namibia. Cimbebasia, 13: 37-43
  » More info & related results
1991DRFN DLIBJournal Article1.35 mb pdf
Preview
Sawyer, E.W. 1976. The geology of an area south-east of Walvis Bay - Part 1: Lithology, sedimentation and field relationship. Geological Survey, Ministry of Mines and Energy, Windhoek
  » More info & related results
1976DRFN DLIBReport74.67 mb pdf
Preview
Srivastava, P., Brook, G.A. and Marais, E. 2004. A record of fluvial aggradation in the northern Namib Desert during the Late Quaternary. Zeitschrift für Geomorphologie, 133: 1-18
  » More info & related results
2004DRFN DLIBJournal Article9.94 mb pdf
Preview
Grobbelaar, J.U. 1976. Some limological properties of an ephemeral waterbody at Sossus Vlei, Namiba Desert, South West Africa. Journal of the Limnological Society of southern Africa, 2: 51-54
  » More info & related results
1976 Journal Article
Thomas, D.S.G. and Shaw, P.A. 1993. The evolution and characteristics of the Kalahari, southern Africa. Journal of Arid Environments, 25(1): 97-108
  » More info & related results
1993 Journal Article

» Links to useful free software for working with shapefiles, kml and kmz files, pdf files and more.