Journal ArticleDOI
The Benue trough and cameroon line — A migrating rift system in West Africa
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TLDR
The remarkable similarity in shape between the Benue trough and the volcanic Cameroon line suggest that they are related to a common "Y"shaped hot zone in the asthenosphere over which the African plate has moved as mentioned in this paper.About:
This article is published in Earth and Planetary Science Letters.The article was published on 1980-11-01. It has received 153 citations till now. The article focuses on the topics: African Plate & Trough (geology).read more
Citations
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Journal ArticleDOI
The Cameroon line, West Africa, and its bearing on the origin of oceanic and continental alkali basalt
J. G. Fitton,Hugh Dunlop +1 more
TL;DR: In this article, the authors conclude that the convecting upper mantle is a much more likely source as it will be well-stirred and unlikely to show any ocean-continent differences.
Journal ArticleDOI
The 1986 Lake Nyos Gas Disaster in Cameroon, West Africa
George W. Kling,Michael A. Clark,Glen N. Wagner,Harry Compton,Alan M. Humphrey,Joseph D. Devine,William C. Evans,John P. Lockwood,Michele L.W. Tuttle,Edward J. Koenigsberg +9 more
TL;DR: Chemical, isotopic, geologic, and medical evidence support the hypotheses that (i) the bulk of gas released was carbon dioxide that had been stored in the lake's hypolimnion, (ii) the victims exposed to the gas cloud died of carbon dioxide asphyxiation, and (iii) the carbon dioxide was derived from magmatic sources.
Journal ArticleDOI
Ir, Ru, Pt, and Pd in basalts and komatiites: new constraints for the geochemical behavior of the platinum-group elements in the mantle
Mark Rehkämper,Mark Rehkämper,Alex N. Halliday,Alex N. Halliday,J. G. Fitton,Der-Chuen Lee,M. Wieneke,Nicholas Arndt +7 more
TL;DR: In this paper, the concentrations of the platinum-group elements (PGE) Ir, Ru, Pt, and Pd were determined in 18 mantle-derived basalts from a variety of tectonic settings and six komatiites from three locations.
Journal ArticleDOI
Petroleum Geology of Cretaceous-Tertiary Rift Basins in Niger, Chad, and Central African Republic
TL;DR: In this article, an overview of the petroleum geology of rift basins in Niger, Chad, and Central African Republic (CAR) is based on exploration work by Exxon and partners in the years 1969-1991.
Journal ArticleDOI
The Cameroon line, West Africa: a comparison between oceanic and continental alkaline volcanism
TL;DR: The Cameroon line is the only known intra-plate alkaline volcanic province which straddles a continental margin this article, and it provides a unique area in which to study the differences between the suboceanic and sub-continental mantle sources for alkali basalt.
References
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Journal ArticleDOI
Plate Tectonics and the Evolution of the Alpine System
TL;DR: A detailed assembly of the outlines of the continents around the North and central Atlantic, before the initial dispersion of Gondwanaland in Early Jurassic times, is presented in this paper.
Journal ArticleDOI
Plume-Generated Triple Junctions: Key Indicators in Applying Plate Tectonics to Old Rocks
Kevin Burke,John F. Dewey +1 more
TL;DR: In this paper, it is proposed that divergent plate motion has commonly begun at axial dikes emplaced in rifts formed in this way, and a normal course of events is that two of the rifts meeting at a junction to open by plate accretion while the third rift becomes inactive as a failed arm.
Book ChapterDOI
Plate Motions and Deep Mantle Convection
TL;DR: In this article, a scheme of deep mantle convection is proposed in which narrow plumes of deep material rise and then spread out radially in the asthenosphere, and thus their strikes show the direction the plates were moving as they were formed.
Journal ArticleDOI
Sea-Floor Spreading in the North Atlantic
Walter C. Pitman,Manik Talwani +1 more
TL;DR: The magnetic anomaly lineation pattern in the North Atlantic Ocean (between the latitudes of 15° N. and 63° N.) has been examined in light of the hypotheses of sea-floor spreading and plate tectonics as mentioned in this paper.
Journal ArticleDOI
The Mesozoic South Atlantic Ocean and evolution of its continental margins
TL;DR: In this paper, gravity and magnetic anomalies along the continental margins of the southern South Atlantic Ocean are compared, in detail, on conjugate sides of the ridge crest, and a model for the boundary between oceanic and continental basement is given.
Related Papers (5)
The Cameroon line, West Africa, and its bearing on the origin of oceanic and continental alkali basalt
J. G. Fitton,Hugh Dunlop +1 more