Journal ArticleDOI
Closure of the Africa‐Eurasia‐North America Plate motion circuit and tectonics of the Gloria Fault
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TLDR
In this paper, the current motions of the African, Eurasian, and North American plates are examined, including whether there is resolvable motion of a Spitsbergen microplate, the direction of motion between the African and North America plates, whether the Gloria fault is an active transform fault, and the implications of plate circuit closures for rates of intraplate deformation.Abstract:
The current motions of the African, Eurasian, and North American plates are examined. The problems addressed include whether there is resolvable motion of a Spitsbergen microplate, the direction of motion between the African and North American plates, whether the Gloria fault is an active transform fault, and the implications of plate circuit closures for rates of intraplate deformation. Marine geophysical data and magnetic profiles are used to construct a model which predicts about 4 mm/yr slip across the Azores-Gibraltar Ridge, and west-northwest convergence near Gibraltar. The analyzed data are consistent with a rigid plate model with the Gloria fault being a transform fault.read more
Citations
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Journal ArticleDOI
Current plate motions
TL;DR: A global plate motion model, named NUVEL-1, which describes current plate motions between 12 rigid plates is described, with special attention given to the method, data, and assumptions used as discussed by the authors.
Current plate motions
TL;DR: In this paper, a new global model (NUVEL-1) was proposed to describe the geologically current motion between 12 assumed-rigid plates by inverting plate motion data.
Journal ArticleDOI
Geologically current plate motions
TL;DR: MORVEL as discussed by the authors is a new closure-enforced set of angular velocities for the geologically current motions of 25 tectonic plates that collectively occupy 97 per cent of Earth's surface.
Journal ArticleDOI
Evidence for active subduction beneath Gibraltar
Marc-André Gutscher,J. Malod,Jean-Pierre Réhault,Isabelle Contrucci,Frauke Klingelhoefer,L. Mendes-Victor,Wim Spakman +6 more
TL;DR: In this paper, a marine seismic survey that images an active accretionary wedge west of Gibraltar is reported, indicating ongoing westward-vergent tectonic shortening, and provides compelling evidence for an active east-dipping subduction zone.
Journal ArticleDOI
Variations in the along‐axis segmentation of the Afar Rift system
N. Hayward,Cynthia Ebinger +1 more
TL;DR: In this article, the authors use high-resolution satellite imagery calibrated by field studies and digital topography data to delineate faults and magmatic centers in unmapped areas and to compare with existing geological reports.
References
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Data Reduction and Error Analysis for the Physical Sciences
TL;DR: In this paper, Monte Carlo techniques are used to fit dependent and independent variables least squares fit to a polynomial least-squares fit to an arbitrary function fitting composite peaks direct application of the maximum likelihood.
Journal ArticleDOI
Data Reduction and Error Analysis for the Physical Sciences.
TL;DR: Numerical methods matrices graphs and tables histograms and graphs computer routines in Pascal and Monte Carlo techniques dependent and independent variables least-squares fit to a polynomial least-square fit to an arbitrary function fitting composite peaks direct application of the maximum likelihood.
Active tectonics of Mediterranean region
TL;DR: In this article, the authors examined more than 100 fault plane solutions for earthquakes within the Alpide belt between the Mid-Atlantic ridge and Eastern Iran and found that the deformation at present occurring is the result of small continental plates moving away from Eastern Turkey and Western Iran.
Journal ArticleDOI
Active Tectonics of the Mediterranean Region
TL;DR: In this paper, the authors examined more than 100 fault plane solutions for earthquakes within the Alpide belt between the Mid-Atlantic ridge and Eastern Iran and found that the deformation at present occurring is the result of small continental plates moving away from Eastern Turkey and Western Iran.