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Volcanic and tectonic control on slow spreading ridge geometry using key sections of the mid-Atlantic ridge

Objective



This project will examine the configuration of the worlds longest secti of slow spreading boundary, the Mid-Atlantic Ridge, to determine the structural and magmatic inputs which control the spatial and temporal evolution of the ridge. In detail, a number of first order ridge segments will be studied by interpretating bathymetric and imagery data held at IOSDL to assess influence of hot-spot activity and/or spreading rate and direction changes.
Three contrasting areas have been selected:
?magmatic, influenced by Azores and Iceland hot spots
?'normal', as the segment south of Atlantis Fracture Zone,
?tectonic, influenced by the large equatorial fracture zones. The principal objectives are:
1) To detennine the statistics of 2nd order segmentation
2)To assess the spatial and temporal ridge variation
3) To compare the tectonic and volcanic ridge characteristics
4) To develop a model to explain the geological controls on slow spreading ridge geometry.

Call for proposal

Data not available

Coordinator

NERC Institute of Oceanographic Sciences
Address
Deacon Laboratory Brook Road Wormley
GU8 5UB Godalming
United Kingdom

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Participants (1)

Not available
Spain
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