Final Desiccation of the Afar Rift, Ethiopia

  title={Final Desiccation of the Afar Rift, Ethiopia},
  author={Enrico Bonatti and Cesare Emiliani and G�te Ostlund and Harold S. Rydell},
  pages={468 - 469}
Stable and radioactive isotope studies of ancient corals and mollusks from a fossil atoll in the Afar Rift indicate that final separation of the Afar Depression from the Red Sea occurred not earlier than 32,000 years ago. Desiccation followed within a few thousand years. The events recorded in the Afar Rift illustrate the processes occurring in the incipient stages leading to the formation of an oceanic body by rifting of a continental block. 
A comparative study of the sedimentary fills of the Danakil Depression (Ethiopia) and Dead-Sea Rift (Israel)
Abstract A great similarity exists between the sedimentary fill of the Danakil Depression and that of the Dead Sea. Both record the history of two tectonic pulses, which formed the Syro-African rift.
Recent and Active Units of the Danakil Sea (Dagad Salt Plain) and Afdera Lake
The northern Afar extremity, also called Danakil, extending into Ethiopia and Eritrea, is characterised by a wide lowland area, up to 250 km long and increasing in width from north to south up to 70
Archaeological reconnaissance of the Late Pleistocene Red Sea coast in the Danakil
The paucity of archaeological evidence from the northern Afar Rift and Red Sea littoral remains a major hindrance to testing the hypothesised Out-of-Africa dispersal of early humans via the ‘Southern
Rift-related morphology of the Afar Depression
The Afar Depression is a subaerial triple junction between the Nubian, Somalian and Arabian Plates, the only place where the final stages of continental break-up can be observed on-land. In spite of
Late Quaternary lake-level fluctuations and environments of the northern Rift Valley and Afar region
Abstract The late Quaternary limnology of the Rift and Afar lakes is compared from two viewpoints: their record of lake-level fluctuations, and the evolution of their sedimentary facies and
Recent Crustal Movements Along the Red Sea and Gulf of Aden Coasts in Afar (Ethiopia and T.F.A.I.
Abstract Faure, H., 1975. Recent crustal movements along the Red Sea and Gulf of Aden coasts in Afar (Ethiopia and T.F.A.I.). In: N. Pavoni and R. Green (Editors), Recent Crustal Movements.
Evolution of the Alu-Dalafilla and Borale volcanoes, Afar, Ethiopia
Abstract The Danakil depression marks a progressive change from continental rifting in Afar to seafloor spreading further north in the Red Sea. Extension and volcanism in this incipient spreading
Reconnaissance of Prehistoric Sites in the Red Sea Coastal Region of the Sudan, NE Africa
ABSTRACT This paper reports results of a recent Stone Age-focused archaeological survey in the Red Sea coastal region of the Republic of Sudan, northeast Africa. Bifaces (handaxes) are the most
The development of extension and magmatism in the Red Sea rift of Afar
Despite the importance of continental breakup in plate tectonics, precisely how extensional processes such as brittle faulting, ductile plate stretching, and magma intrusion evolve in space and time
Volcanism in the Afar depression: Its tectonic and magmatic significance
Abstract Three main types of volcanism, viz. oceanic, continental and stratoid, reflect the tectonic evolution of Afar. Stratoid volcanism (flood basalts and ignimbrites) is believed to be an early


Exposed Guyot from the Afar Rift, Ethiopia
A series of originally submarine volcanoes has been found in the Afar Depression and one of them consists of strata of finely fragmented and pulverized basaltic glass, suggesting that not all oceanic guyots are necessarily the result of wave truncation of former volcanic islands.
Age of the Cape Kennedy Barrier‐and‐Lagoon Complex
Thorium and uranium isotopic analyses of both modern and fossil shells and beach rock of the Cape Kennedy, Florida, area suggest that the materials can be treated as closed, datable systems that have
Oxygen and Carbon Isotopic Composition of Limestones and Dolomites, Bikini and Eniwetok Atolls
Aragonitic, unconsolidated sediments from the borings on the Eniwetok and Bikini atolls are isotopically identical with unaltered skeletal fragments, whereas the recrystallized limestones exhibit
Uranium-Series Ages of Pacific Atoll Coral
A hiatus in the development of coral between 6000 and 120,000 years ago on the Pactfic atoll of Eniwetok implies that conditions did not permit coral growth during this period.
Potash-bearing evaporites in the Danakil area, Ethiopia
This Quaternary evaporite succession is little affected by time and burial, and provides unique evidence bearing on problems of the genesis of evaporites in general. At least 3200 feet of halitic
Isotopic Composition and Origin of the Red Sea and Salton Sea Geothermal Brines
Abstract. Deuterium and oxygen-18 measurements show that the Red Sea and Salton Sea brines are the results of a single process, the leaching of sediments by surface water circulating downward to a
Carbon and oxygen isotopic composition of selected limestones and fossils
Abstract Isotopic analyses are presented for 500 samples of marine and freshwater limestones and fossils. Mean carbon isotopic compositions, in the conventional δ-values, relative to the Chicago PDB
Géologie de l’Afar Septentrional
RésuméTectonique — Du 15° au 13° parallele, l’apex septentrional de l’Afar est conditionné par des fissures de tension ouvertes et des failles normales de direction NNW. Un graben à fosse centrale
X-ray Analysis Using Radioisotope Sources
  • At. Energy Comm. Res. Develop. Rep
  • 1968
The expeditions, led by H. Tazieff and G. Marinelli, took place in the winter months of
  • 1967