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Zoology and wildlife conservation

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Formation of fold-and-thrust belts on Venus by thick-skinned deformation

Article Abstract:

The horizontal shortening of a laterally heterogeneous lithosphere can explain the long-wavelength topography of the venusian fold-and-thrust belts. A model shows that the process of mountain building in Venus is regulated by deformation within the mechanically strong outer layer of its surface. In this model, the shape and elevation of the venusian plateau is moulded by the isostatic effects which arise due to subsurface compositional and thermal variations. The style of deformation is influenced by rheological structure.

Author: Zuber, M.T., Parmentier, E.M.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
Observations, Thrust faults (Geology), Thrust faults, Folds (Geology), Surface (Geology), Venus (Planet)

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Coming soon - the movie

Article Abstract:

Three studies, projecting life-like photographs of the contractile apparatus operating in muscle, will help in making a movie. Ivan Rayment and his colleagues present three dimensional structure of the chicken, skeletal myosin head, in 'Science' journal. The other two studies reveal three dimensional electron monographs of frozenhydrated F-actin decorated with S1 which provides an atomic model for the actomyosin complex.

Author: Trayer, Ian P.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
Analysis, Contractility (Biology)

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