Academic literature on the topic 'Late Quaternary Africa'
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Journal articles on the topic "Late Quaternary Africa"
Roberts, N., J. Deacon, and N. Lancaster. "Late Quaternary Palaeoenvironments of Southern Africa." Geographical Journal 155, no. 1 (March 1989): 118. http://dx.doi.org/10.2307/635393.
Full textSCHOLZ, CHRISTOPHER A., and BRUCE P. FINNEY. "Late Quaternary sequence stratigraphy of Lake Malawi (Nyasa), Africa." Sedimentology 41, no. 1 (February 1994): 163–79. http://dx.doi.org/10.1111/j.1365-3091.1994.tb01397.x.
Full textMeadows, M. E. "Late Quaternary peat accumulation in southern Africa." CATENA 15, no. 5 (October 1988): 459–72. http://dx.doi.org/10.1016/0341-8162(88)90064-1.
Full textRamsay, Peter J., and J. Andrew G. Cooper. "Late Quaternary Sea-Level Change in South Africa." Quaternary Research 57, no. 1 (January 2002): 82–90. http://dx.doi.org/10.1006/qres.2001.2290.
Full textRunge, Jürgen. "New results on Late Quaternary landscape and vegetation dynamics in eastern Zaire (Central Africa)." Zeitschrift für Geomorphologie Supplement Volumes 99 (September 13, 1995): 65–74. http://dx.doi.org/10.1127/zfgsuppl/99/1995/65.
Full textScott, L. "Late quaternary forest history in Venda, Southern Africa." Review of Palaeobotany and Palynology 53, no. 1-2 (November 1987): 1–10. http://dx.doi.org/10.1016/0034-6667(87)90008-x.
Full textNarcisi, Biancamaria. "Late Quaternary Eolian Deposition in Central Italy." Quaternary Research 54, no. 2 (September 2000): 246–52. http://dx.doi.org/10.1006/qres.2000.2155.
Full textPokras, Edward M., and Alan C. Mix. "Eolian Evidence for Spatial Variability of Late Quaternary Climates in Tropical Africa." Quaternary Research 24, no. 2 (July 1985): 137–49. http://dx.doi.org/10.1016/0033-5894(85)90001-8.
Full textOsmaston, Henry A., and Sandy P. Harrison. "The Late Quaternary glaciation of Africa: A regional synthesis." Quaternary International 138-139 (September 2005): 32–54. http://dx.doi.org/10.1016/j.quaint.2005.02.005.
Full textThackeray, J. F. "Temperature Indices from Late Quaternary Sequences in South Africa." South African Geographical Journal 72, no. 2 (September 1990): 47–49. http://dx.doi.org/10.1080/03736245.1990.10586374.
Full textDissertations / Theses on the topic "Late Quaternary Africa"
Irving, Suzanne Judy Emma. "Late quaternary palaeoenvironments at Vankervelsvlei, near Knysna, South Africa." Master's thesis, University of Cape Town, 1998. http://hdl.handle.net/11427/10714.
Full textBergner, Andreas G. N. "Lake-level fluctuations and Late Quaternary climate change in the Central Kenya Rift." Phd thesis, Universität Potsdam, 2003. http://opus.kobv.de/ubp/volltexte/2005/107/.
Full textIn this work, an approach of paleoclimate reconstruction for tropical East Africa is presented. After giving a short summary of modern climate conditions in the tropics and the East African climate peculiarity, the potential of reconstructing climate from paleolake sediments is discussed. As demonstrated, the hydrologic sensitivity of high-elevated closed-basin lakes in the Central Kenya Rift yields valuable guaranties for the establishment of long-term climate records. Temporal fluctuations of the limnological characteristics saved in the lake sediments are used to define variations in the Quaternary climate history. Based on diatom analyses in radiocarbon- and 40Ar/39Ar-dated sediments, a chronology of paleoecologic fluctuations is developed for the Central Kenya Rift -lakes Nakuru, Elmenteita and Naivasha. At least during the penultimate interglacial (around 140 to 60 kyr BP) and during the last interglacial (around 12 to 4 kyr BP), these lakes experienced several transgression-regression cycles on time intervals of about 11,000 years. Additionally, a long-term trend of lake evolution is found suggesting the general succession from deep freshwater lakes towards more saline waters during the last million years. Using ecologic transfer functions and a simple lake-balance model, the observed paleohydrologic fluctuations are linked to potential precipitation-evaporation changes in the lake basins. Though also tectonic influences on the drainage pattern and the effect of varied seepage are investigated, it can be shown that already a small increase in precipitation of about 30±10 % may have affected the hydrologic budget of the intra-rift lakes within the reconstructed range. The findings of this study help to assess the natural climate variability of East Africa. They furthermore reflect the sensitivity of the Central Kenya Rift -lakes to fluctuations of large-scale climate parameters, such as solar radiation and sea-surface temperatures of the Indian Ocean.
Rowell, Alexandra. "Sand ramps as late Quaternary palaeoenvironmental archives : analysis from southern Africa." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:ce5b7e85-41a6-4582-96bb-12e74284e1e6.
Full textStone, Abigail E. C. "Multi-proxy reconstructions of late quaternary environments in Western Southern Africa." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517019.
Full textBaxter, Andrew James. "Late quaternary palaeoenvironments of the Sandveld, Western Cape Province, South Africa." Doctoral thesis, University of Cape Town, 1997. http://hdl.handle.net/11427/13880.
Full textBibliography: leaves 263-292.
This thesis presents new palaeoenvironmental evidence from the semi-arid lowlands of the West Coast Sandveld, which prompts a fresh synthesis as to the nature of late Quaternary environmental changes in the southwestern Cape's fynbos biome. The study is centred on Verlorenvlei, a remote coastal lake and swamp system which is ideally situated to investigate the complex interactions between late Holocene climate change, vegetation change, sea-level fluctuation, lacustrine/estuarine/fluvial sedimentology and human activity in the Sandveld region. In addition, this region of the West Coast has provided Quaternary scientists with a rich archaeological record against which independent lines of palaeoecological evidence can be evaluated. In support of the study, a wide range of palaeoenvironmental techniques has been applied to sediments sampled from the Verlorenvlei area. Organogenic deposits have been radiocarbondated and subjected to pollen analysis and assorted sedimentological and geoarchaeological assessments. Preliminary fossil pollen data from Elands Bay Cave, assembled for the period following the Last Glacial Maximum until approximately the terminal Pleistocene, are suggestive of moister and possibly cooler conditions in the Sandveld at this time. This is in contrast to prevailing evidence from the summer rainfall region of the subcontinent. Particle size analysis and an assessment of the in situ fossil Mollusca from vibracores, derived from the estuarine reaches of Verlorenvlei, reveal substantive evidence for rapid sea-level fluctuations along the West Coast during the mid-Holocene. Further inland, several mid-Holocene higher sea-levels are reflected in the palynology of lacustrine cores derived from Grootdrift and Klaarfontein. Detailed pollen diagrams, presented from Grootdrift, Klaarfontein, Muisbosskerm and Spring Cave, reflect the regional vegetation history during several periods over the last 7 000 years. There is convincing evidence from these data that the first half of the Holocene - commensurate with the Holocene hypsithermal - was associated with reduced moisture availability, and hence arid conditions along the West Coast. By contrast, there is evidence from the latter half of the Holocene that conditions ameliorated in the Sandveld around 3 000 BP and that moisture was, at this time more freely available. Following a hiatus in sedimentation some time after 4 000 BP, marine conditions are no longer visible in Verlorenvlei, having been replaced by fresh water as the dominant hydrological regime. A high resolution palynological investigation of the Grootdrift wetland sediments has contributed to a detailed palaeolimnological reconstruction of the upper Verlorenvlei system since the time of colonial expansion into the area, some 300 years ago. The picture reveals a sequence of rapid ecological changes in the face of progressive human disturbance. Arising from these insights, a number of recommendations for the management of dryland aquatic ecosystems such as Verlorenvlei, are presented. The significance of these late Quaternary palaeoenvironmental changes, in terms of the biogeography of plants and animals and also in terms of human occupation of the region, is examined.
Chevalier, Manuel. "Quantified Reconstructions of late Quaternary southern African Climate Change." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS281.
Full textSouthern African drylands are not suited for the application of climate reconstruction methods based on surface samples. Methods based on the co-existence approach, while still in their early days, are really promising, particularly those using probability density functions (pdfs) that have proven particularly valuable in certain cases as they can be applied to a wide range of plants assemblages. Most commonly applied to fossil pollen data, their performance can be limited by the taxonomic resolution of the pollen data, as many species may belong to a given pollen-type. Consequently, climate information associated with a taxon cannot always be precisely identified, resulting in less accurate reconstructions. This can become particularly problematic in regions of high biodiversity, such as southern African botanical hotspots. The first part of this PhD thesis presents the development of a novel pdf-based climate reconstruction method adapted to the southern African context. The method, which comes along with a dedicated software pack- age entitled CREST, sorts out this diversity issue by taking into account the different climatic requirements of each species constituting the broader pollen-type: pdfs are fitted in two successive steps, with parametric univariate pdfs fitted first for each species (pdfsp) followed by a combination of those individual species pdfs into a broader single pdf to represent the pollen-type as a unit (pdfpol). The curve resulting from the multiplication of the pdfpol describes the likelihood of different climate parameters based on the co-existence of a given set of taxa, each being weighted according to its normalized pollen percentage. Three majors properties were derived from this continental-scale statistical analysis: 1) the method saturates when the number of species composing a pollen type becomes larger than 30-40 species, 2) the per- formance decreases with distance to the core of the climatic space and 3) climate variables that have a direct impact of plant life cycles are better reconstructed.We revisited 13 pollen sequences (selection based on their length, continuity, chronology and pollen diversity) from southern African literature with the CREST method. To offset the limited individual potential of those sequences, we developed a Monte-Carlo framework to create interpolated curves integrating uncertainties associated with the reconstructions and age-depth models and then stack those curves together to extract regionally consistent patterns. This reanalysis allows for the quantified reconstruction of a range of distinct climatic variables from this critical region, and provides significant insight into the nature of long-term climate change. Temperature reconstructions show strong coherency among all sites considered, and parallel southwest Indian Ocean SSTs. Reconstructions of the amount of summer precipitation since mid-MIS 3 (Marine Isotope Stage 3) 45,000 years ago indicate a dichotomy in the precipitation pattern between interior and northeastern South African sites. At the glacial-interglacial timescale, precipitation in northeastern sites shows strong similarities with the Indian Ocean SST records as well as with records from the large East African lakes. Entering the Holocene, precessional forcing becomes more important and a north/south rainfall dipole appears, with a demarcation line located somewhere between Lakes Tanganyika and Malawi (3-9°S). Sites from the interior, while clearly following a similar dynamic, also appear to be sensitive to additional factors, including the position of the southern Westerlies, which may interact with tropical systems to create tropical-temperate troughs. Our results shed light on the complexity of the mechanisms driving South African rainfall, and clarify several key elements of the current debate, including limitations of models relying on direct insolation forcing to explain long-term climate dynamics
Dunajko, Adam C. "Mid- to Late-Quaternary evolution of the Wilderness Barrier dunes, South Africa." Thesis, University of Sheffield, 2011. http://etheses.whiterose.ac.uk/1998/.
Full textItambie, Achakie Cletus. "Rock magnetic and geochemical signals of late Quaternary climate variability over northwest Africa." lizenzfrei, 2008. http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000111701.
Full textChase, Brian. "Late Quaternary palaeoenvironments of the west coast of South Africa : the aeolian record." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423345.
Full textMcMillan, I. K. "Late Quaternary foraminifera from the southern part of offshore south west Africa/Namibia." Thesis, Aberystwyth University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239620.
Full textBooks on the topic "Late Quaternary Africa"
1948-, Lancaster Nicholas, ed. Late Quaternary palaeoenvironments of southern Africa. Oxford [England]: Clarendon Press, 1988.
Find full textJohn, Bower, Lubell David, and Society of Africanist Archaeologists in America., eds. Prehistoric cultures and environments in the late Quaternary of Africa. Oxford, England: B.A.R., 1988.
Find full textTropical and sub-tropical West Africa - Marine and continental changes during the Late Quaternary, Volume 10 (Developments in Quaternary Sciences) (Developments in Quaternary Sciences). Elsevier Science, 2007.
Find full textTropical and Sub-Tropical West Africa - Marine and Continental Changes During the Late Quaternary. Elsevier, 2008. http://dx.doi.org/10.1016/s1571-0866(08)x8001-7.
Full text1931-, Kadomura Hiroshi, and Hokkaidō Daigaku. Kankyō Kagaku Kenkyūka. Kankyō-Kisogaku Kenkyūshitsu., eds. Geomorphology and environmental changes in tropical Africa: Case studies in Cameroon and Kenya : a preliminary report of the tropical African geomorphology and late-Quaternary palaeoenvironments research project 1984/85. Sapporo, Japan: Laboratory of Fundamental Research, Division of Environmental Structure, Graduate School of Environmental Science, Hokkaido University, 1986.
Find full textHiroshi, Kadomura, and Tropical African Geomorphology and Late-Quaternary Palaeoenvironments Research Project., eds. Geomorphology and environmental changes in Tropical Africa: Case studies in Cameroon and Kenya : a preliminary report of the Tropical AfricanGeomorphology and Late-Quaternary Palaeoenvironments Research Project 1984/85. Hokkaido: Laboratory of Fundamental Research, Division of Environmental Structure, Graduate School of Environmental Science, Hokkaido University, 1986.
Find full text1931-, Kadomura Hiroshi, and Bingham Mike G, eds. A Preliminary report of the Tropical African Geomorphology and Late-Quaternary Palaeoenvironments Research Project (TAGELAQP) 1987/88. [Tokyo]: Dept. of Geography, Faculty of Science, Tokyo Metropolitan University, 1989.
Find full textBook chapters on the topic "Late Quaternary Africa"
Mirazón Lahr, Marta, and Robert A. Foley. "Human Evolution in Late Quaternary Eastern Africa." In Africa from MIS 6-2, 215–31. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-017-7520-5_12.
Full textUmer, Mohammad, Dagnachew Legesse, Françoise Gasse, Raymonde Bonnefille, Henry F. Lamb, Melanie J. Leng, and Angela A. Lamb. "Late Quaternary climate changes in the Horn of Africa." In Past Climate Variability through Europe and Africa, 159–80. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2121-3_9.
Full textKnight, Jasper, and Jennifer M. Fitchett. "Climate Change During the Late Quaternary in South Africa." In World Regional Geography Book Series, 37–45. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-94974-1_5.
Full textBurrough, Sallie L. "Late Quaternary Environmental Change and Human Occupation of the Southern African Interior." In Africa from MIS 6-2, 161–74. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-017-7520-5_9.
Full textGrine, Frederick E. "The Late Quaternary Hominins of Africa: The Skeletal Evidence from MIS 6-2." In Africa from MIS 6-2, 323–81. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-017-7520-5_17.
Full textZouari, Hedi, Achraf Zouari, and Fehmy Belghouthi. "Compressional Tectonics Since Late Maastrichtian to Quaternary in Tunisian Atlas." In The Structural Geology Contribution to the Africa-Eurasia Geology: Basement and Reservoir Structure, Ore Mineralisation and Tectonic Modelling, 233–35. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01455-1_50.
Full textCarr, Andrew S., Brian M. Chase, and Alex Mackay. "Mid to Late Quaternary Landscape and Environmental Dynamics in the Middle Stone Age of Southern South Africa." In Africa from MIS 6-2, 23–47. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-017-7520-5_2.
Full textGasse, Françoise, and C. Neil Roberts. "Late Quaternary Hydrologic Changes in the Arid and Semiarid Belt of Northern Africa." In Advances in Global Change Research, 313–45. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2944-8_12.
Full textFontes, J. Ch, and F. Gasse. "Chronology of the major palaeohydrological events in NW Africa during the late Quaternary: PALHYDAF results." In Environmental History and Palaeolimnology, 367–72. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3592-4_47.
Full textZouari, Achraf, Hedi Zouari, and Fehmy Belghouthi. "Aptian-Albian Diapirism and Compressional Tectonics Since Late Maastrichtian to Quaternary in Mateur-Tebourba Region (Northern Tunisian Atlas)." In The Structural Geology Contribution to the Africa-Eurasia Geology: Basement and Reservoir Structure, Ore Mineralisation and Tectonic Modelling, 289–91. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01455-1_63.
Full textConference papers on the topic "Late Quaternary Africa"
Scholz, Christopher A. "Advancing Models of Facies Variability and Lacustrine Source Rock Accumulation in Rifts: Implications for Exploration." In SPE/AAPG Africa Energy and Technology Conference. SPE, 2016. http://dx.doi.org/10.2118/afrc-2577056-ms.
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