2026-07-21T10:50:51Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/1024062025-03-18T15:40:28Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Díaz Azpiroz, M.
author
Fernández Rodríguez, Carlos
2024-03-20T09:31:33Z
2024-03-20T09:31:33Z
2000
1576-5172
https://hdl.handle.net/20.500.14352/102406
https://sociedadgeologica.org/publicaciones/geotemas/geo-temas-1/
A granulometric analysis has been made on the metabasites from the Acebuches series, in the contact between Ossa-Morena and South-Portuguese zones (SW Iberian Massif)- Mean grain sizes, population densities, CSDs and aspect ratios have been calculated. From these, it has been estimated the evolution of the grain size and shape changes across the whole series. Crain size decreases and uniformizes from the top of the series towards the South Iberian Shear Zone (SISZ). In the same sense, the aspect ratio increases (i.e. grains acquire a more elongated habit). These changes are interpreted as due to the superposition of two processes: I) an inverted metamorphic event and 2) the later superposition of the deformation related to the SISZ, which produced retrograde metamorphism and intense mylonitization. At the base of the series, where the deformation related to the SISZ is most intense, the grain size and shape reached a steady state.
spa
Análisis de la variación del tamaño de grano en las Metabasitas de la Serie de Acebuches (Macizo Ibérico Meridional)
journal article
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URL
https://docta.ucm.es/bitstreams/71facc4d-52f8-447d-9700-bab6cdea18c8/download
File
MD5
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application/pdf
Geotemas1_3sge (Fernández Rodríguez).pdf
URL
https://docta.ucm.es/bitstreams/48a9aa23-7cfb-4006-b83d-10acd8fc9a82/download
File
MD5
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text/plain
Geotemas1_3sge (Fernández Rodríguez).pdf.txt