• Publications
  • Influence
Chlorine and bromine abundance in MORB: the contrasting behaviour of the Mid-Atlantic Ridge and East Pacific Rise and implications for chlorine geodynamic cycle
We have analyzed MORB glasses from the Mid-Atlantic Ridge (64°N-20°S) and the East Pacific Rise (7–21°N) for chlorine with an electron microprobe and chlorine and bromine by NAA.Expand
  • 190
  • 26
The Cameroon Hot Line (CHL): A unique example of active alkaline intraplate structure in both oceanic and continental lithospheres
The Cameroon Hot Line (CHL) is an active N30°E tectono-magmatic alignment, extending from Pagalu Island to Lake Chad. Its oceanic sector is comprised of six major volcanoes, and the continentalExpand
  • 163
  • 23
  • PDF
A new tectonic model for the Cameroon Line, Central Africa
Abstract The Cameroon Line, a major geological feature in Central Africa, has been considered successively as a series of horsts and grabens, a continental rift and a mega-shear zone. It is markedExpand
  • 152
  • 14
The Cameroon Line: A Review
Since the work of Von Baumann (1887) the Cameroon Line (Fig. 1) is known as a major geological feature in Central Africa. The Cameroon Line is an alignment of oceanic and continental volcanic massifsExpand
  • 148
  • 13
Iodine abundances in oceanic basalts: implications for Earth dynamics
Abstract Iodine analyses by neutron activation have been performed on 32 oceanic basalts glasses, 1 phonolite and 3 subaerial arc basalts. The world-wide sample set encompasses all typical geodynamicExpand
  • 111
  • 13
Regional O-, Sr-, and Pb-isotope relationships in late Cenozoic calc-alkaline lavas of the Andean Cordillera
Quaternary-Recent volcanism in the Andes has occurred in three regions: 45–33°S, 28–16°S and 2°S–5°N, each of which has a distinct plate tectonic setting and contains volcanic suites with differentExpand
  • 148
  • 8
Mount Cameroon: an active volcano of the Cameroon Line
Abstract Mt Cameroon is a large volcanic horst which belongs to the Cameroon Line. The morphology of the massif depends on tectonic control. Mt Cameroon is built upon a Precambrian metamorphicExpand
  • 84
  • 7
Petrology of the plio-quaternary volcanism of the South-Central and Meridional Andes
Plio-quaternary volcanoes lay upon a continental crust which is thick and of Precambrian-Paleozoic age in the South-Central Andes (SCA, 18–28°S) whereas it is relatively thin and of Mesozoic-CenozoicExpand
  • 102
  • 7
Petrology of the bimodal Cenozoic volcanism of the Kapsiki plateau (northernmost Cameroon, Central Africa)
The Kapsiki Plateau is the northernmost volcanic zone of the Cameroon Line. The volcanism (27‐35 Ma) is of alkaline type and has a typical bimodal lava series diversity with basalts and hawaiite asExpand
  • 72
  • 6
Petrology of the Mio-Pliocene volcanism to the North and East of Ngaoundéré (Adamawa, Cameroon)
Basaltic flows and thirty-five plugs of felsic alkaline volcanic rocks (phonolites and trachytes) of Mio-Pliocene age are exposed to the north and east of Ngaoundere (Adamawa, Cameroon). The seriesExpand
  • 38
  • 5
  • PDF