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DIGITAL.CSIC
Article . 2008 . Peer-reviewed
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Formación de equistosidad por crenulación y disolución

Authors: SOLÉ SUGRAÑES, LL.;

Formación de equistosidad por crenulación y disolución

Abstract

[ES] Se estudia el desarrollo de la esquistosidad de crenulación en diversas muestras de pizarras cambro-ordovícicas de los Appalaches centrales (Dutchess Co. Nueva York). La esquistosidad de crenulación se desarrolla en una primera fase por el microplegamiento de los planos de esquistosidad pizarrosa. La forma y orientación de los micropliegues depende de la anisotropia del medio y de la orientación de la dirección de máximo acortan~iento respecto la esquistosidad pizarrosa. En una segunda fase se desarrollan superficies de disolución de tipo estilolítico en los flancos de los micropliegues. Por último en una tercera fase, acompañada de metamorfismo, se produce la recristalización de minerales micaceos paralelamente a las superficies de disolución y concentración de cuarzo en las charnelas de los micropliegues.

[EN] Crenulation clevage development is studied in cambroordovician slates from the Central Appalaches (Dutchess Co. N. Y.). Crenulation cleavage starts by microfolding of previous slaty cleavage surfaces. Geometry and orientation of microfols are related to rock anisotropy and the initial orientation of principal stress respect to slaty surfaces. During a second phase of development of crenulation cleavage stylolitet-like solution surfaces are formed on the limbs of microfolds. They are perpendicular to the maximum shortening direction. The last step of the development is a mineral transformation undergoing formation of phyllosilicates parallel to the solution surfaces and concentration of quartz in the microfold hinges.

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Country
Spain
Related Organizations
Keywords

Cremulación, Esquistosidad, Microplegamientos

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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