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Structural investigations in the Massif-Central, FranceThis survey covered the French Massif-Central (where crystalline and volcanic rocks outcrop) and its surrounding sedimentaries, Bassin de Paris, Bassin d'Aquitaine and Rhodanian valley. One objective was the mapping of fracturing and the surveying of its relationship with known ore deposits. During this survey it was found that ERTS imagery outlines lithology in some sedimentary basins. On the other hand, in a basement area, under temperature climate conditions, lithology is rarely expressed. These observations can be related to the fact that band 5 gives excellent results above sedimentary basins in France and generally band 7 is the most useful in a basement area. Several examples show clearly the value of ERTS imagery for mapping linear features and circular structures. All the main fractures are identified with the exception of new ones found both in sedimentaries and basement areas. Other interesting findings concern sun elevation which, stereoscopic effect not being possible, simulates relief in a better way under certain conditions.
Document ID
19740022644
Document Type
Conference Paper
Authors
Scanvic, J. Y.
(Bureau de Recherches Geologiques et Minieres Orleans, France)
Date Acquired
August 7, 2013
Publication Date
January 1, 1974
Publication Information
Publication: NASA. Goddard Space Flight Center 3d ERTS-1 Symp., Vol. 1, Sect. A
Subject Category
Geophysics
Report/Patent Number
PAPER-G11
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19740022592Analytic PrimaryThird Earth Resources Technology Satellite-1 Symposium. Volume 1: Technical Presentations, section A
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