The Potassium-Argon Dating of Late Cenozoic Rocks in East Africa and Italy [and Comments and Reply]

1965 ◽  
Vol 6 (4) ◽  
pp. 342-385 ◽  
Author(s):  
J. F. Evernden ◽  
G. H. Curtis ◽  
William Bishop ◽  
C. Loring Brace ◽  
J. Desmond Clark ◽  
...  
Keyword(s):  
East Africa ◽  
Late Cenozoic ◽  
Argon Dating

Morphotectonic evolution of the central Kenya rift flanks: Implications for late Cenozoic environmental change in East Africa

Geology ◽  
2007 ◽  
Vol 35 (5) ◽  
pp. 427 ◽  
Author(s):  
Cornelia Spiegel ◽  
Barry P. Kohn ◽  
David X. Belton ◽  
Andrew J.W. Gleadow
Keyword(s):  
Environmental Change ◽  
East Africa ◽  
Late Cenozoic ◽  
Kenya Rift ◽  
Morphotectonic Evolution ◽  
Central Kenya

Faunal Dating of the Late Cenozoic of Southern Africa, with Special Reference to the Carnivora

1974 ◽  
Vol 4 (2) ◽  
pp. 149-161 ◽  
Author(s):  
Q.B. Hendey
Keyword(s):  
Special Reference ◽  
East Africa ◽  
Southern Africa ◽  
Late Cenozoic ◽  
Dating Methods ◽  
Mammalian Faunas ◽  
Type Site ◽  
Evolutionary Lineages ◽  
Radiometric Dates

Since chronometric data comparable to that available from the late Cenozoic succession of East Africa have not, and probably cannot be obtained in southern Africa, faunal dating methods retain their traditional significance in the latter area. Five successive late Cenozoic mammal ages, the Namibian, Langebaanian, Makapanian, Cornelian, and Florisian have been proposed as a framework for discussions relating to the chronology of southern African mammalian faunas. The Namibian fauna is poorly known, but is evidently of Miocene age. It is not discussed in this paper. The Langebaanian fauna is well known only from the prolific occurrence at the type site of Langebaanweg and is Pliocene in age. Makapanian faunas are best represented at the Transvaal Australopithecine sites and probably overlap the Plio-Pleistocene boundary. The Cornelian fauna is not as well known as others, the largest assemblage having been recorded from Elandsfontein, although this assemblage is one which is unfortunately temporally heterogeneous. Florisian faunas have been recovered from a relatively large number of localities, including several for which there are radiometric dates. The recorded southern African fossil Carnivora are listed and the local evolution of this group is discussed in terms of the mammal age chronology. It is concluded that secure faunal dating of individual fossil occurrences is enhanced by an appreciation of the nature of changes undergone in evolutionary lineages, while an uncritical knowledge of recoreded taxa is less useful.

Late Cenozoic Paleoclimates of the Gaap Escarpment, Kalahari margin, South Africa

1978 ◽  
Vol 10 (3) ◽  
pp. 310-339 ◽  
Author(s):  
K.W. Butzer ◽  
R. Stuckenrath ◽  
A.J. Bruzewicz ◽  
D.M. Helgren
Keyword(s):  
South Africa ◽  
East Africa ◽  
Atmospheric Circulation ◽  
Late Holocene ◽  
Summer Rainfall ◽  
Climatic Variation ◽  
Early Pleistocene ◽  
Late Cenozoic ◽  
Australopithecus Africanus ◽  
Middle Holocene

The Gaap Escarpment is a dolomite cuesta demarcating the southeast margin of the Kalahari. Since Miocene-Pliocene times, thick masses of lime tufa have repeatedly accumulated at several points along this escarpment, and four regional sequences are described. These allow discrimination of six major depositional complexes, commonly characterized by basal cryoclastic breccias or coarse conglomerates that reflect frost shattering and torrential runoff, followed by sheets and lobes of tufa generated in an environment substantially wetter than today. A chronostratigraphy for the last 30,000 yr is provided by 14C dating, with direct or indirect correlations to the Vaal River sequence. The regional stratigraphy as well as faunal dating indicate an early Pleistocene age for Australopithecus africanus at Taung. Repeated episodes of protracted cold or wetter climate or both begin in terminal Miocene times, and the last Pleistocene cold-moist interval began after 35,000 yr B.P. and ended 14,000 yr B.P. Early and late Holocene times were mainly wetter, whereas the middle Holocene was drier than today. The paleoclimatic sequence differs from that of the southern and southwestern Cape or that of East Africa, but close parallels are evident throughout the lower Vaal Basin and the southern Kalahari. The tufa cycles provide a unique, 5,000,000-yr record of climatic variation in the Kalahari summer-rainfall belt that can be related to complex anomalies of the general atmospheric circulation.

Late Cenozoic Moisture History of East Africa

Science ◽  
2005 ◽  
Vol 309 (5743) ◽  
pp. 2051-2053 ◽  
Author(s):  
M. H. Trauth
Keyword(s):  
East Africa ◽  
Late Cenozoic ◽  
History Of

Canoes of East Africa

1918 ◽  
Vol 86 (2228supp) ◽  
pp. 170-170
Keyword(s):  
East Africa

Drawers of Water II: assessing change in domestic water use in East Africa

Waterlines ◽  
2003 ◽  
Vol 22 (1) ◽  
pp. 22-25 ◽  
Author(s):  
John Thompson ◽  
Ina Porras ◽  
Munguti Katui-Katua ◽  
Mark Mujwahuzi ◽  
James Tumwine
Keyword(s):  
East Africa ◽  
Water Use ◽  
Domestic Water

Coffee and qat on the Royal Danish expedition to Arabia – botanical, ethnobotanical and commercial observations made in Yemen 1762–1763

2015 ◽  
Vol 42 (1) ◽  
pp. 101-112
Author(s):  
I. Friis
Keyword(s):  
East Africa ◽  
Arabian Peninsula ◽  
Made In

In spite of widespread consumption of coffee in Europe at the time of the Royal Danish expedition to Arabia 1761–1767, little was known of the cultivation of coffee in Yemen and of the Arabian coffee export to Europe. Fresh leaves of qat were used as a stimulant on the Arabian Peninsula and in East Africa, but before the Royal Danish expedition to Arabia this plant was known in Europe only from secondary reports. Two members of the expedition, Carsten Niebuhr and Peter Forsskål, pioneered studies of coffee and qat in Yemen and of the Arabian coffee export. Linnaeus' instructions for travellers requested observations on the use of coffee, but otherwise Forsskål and Niebuhr's studies of coffee and qat were made entirely on their own initiative. Now, 250 years after The Royal Danish expedition to Arabia, coffee has become one of the world's most valuable trade commodities and qat has become a widely used and banned drug.

Nghiên cứu kiến trúc Kiến tạo các trũng Kainozoi muộn ở Tây Bắc Việt Nam

2018 ◽  
Vol 28 (2) ◽  
pp. 202-209
Author(s):  
Lê Triều Việt ◽  
Nguyễn Văn Hùng
Keyword(s):  
Viet Nam ◽  
Late Cenozoic

The study of late Cenozoic basins in the Northwestern Vietnam

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