Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/128858
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Late Ordovician (post–Sardic) rifting branches in the North Gondwanan Montagne Noire and Mouthoumet massifs of southern France |
Autor: | Álvaro-Blasco, José Javier CSIC ORCID; Colmenar, Jorge; Monceret, Eric; Pouclet, André; Vizcaïno, Daniel | Palabras clave: | Brachiopods Trilobites; stratigraphy Continental tholeiite Unconformity Diamictite |
Fecha de publicación: | 23-dic-2015 | Editor: | Elsevier | Citación: | Tectonophysics (online 23 December 2015), (2016) | Resumen: | Upper Ordovician–Lower Devonian rocks of the Cabrières klippes (southern Montagne Noire) and the Mouthoumet massif in southern France rest paraconformably or with angular discordance on Cambrian–Lower Ordovician strata. Neither Middle–Ordovician volcanism nor associated metamorphism is recorded, and the subsequent Middle Ordovician stratigraphic gap is related to the Sardic phase. Upper Ordovician sedimentation started in the rifting branches of Cabrières and Mouthoumet with deposition of basaltic lava flows and lahar deposits (Roque de Bandies and Villerouge formations) of continental tholeiite signature (CT), indicative of continental fracturing. The infill of both rifting branches followed with the onset of: (1) Katian (Ka1–Ka2) conglomerates and sandstones (Glauzy and Gascagne formations), which have yielded a new brachiopod assemblage representative of the Svobodaina havliceki Community; (2) Katian (Ka2–Ka4) limestones, marlstones and shales with carbonate nodules, reflecting development of bryozoan-echinoderm meadows with elements of the Nicolella Community (Gabian and Montjoi formations); and (3) the Hirnantian Marmairane Formation in the Mouthoumet massif that has yielded a rich and diverse fossil association representative of the pandemic Hirnantia Fauna. The sealing of the subaerial palaeorelief generated during the Sardic phase is related to Silurian and Early Devonian transgressions leading to onlapping patterns and the record of high-angle discordances. | Versión del editor: | http://dx.doi.org/10.1016/j.tecto.2015.11.031 | URI: | http://hdl.handle.net/10261/128858 | DOI: | 10.1016/j.tecto.2015.11.031 |
Aparece en las colecciones: | (IGEO) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
T_2016_inpress_Alvaro.pdf | 1,55 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
30
checked on 11-abr-2024
WEB OF SCIENCETM
Citations
29
checked on 26-feb-2024
Page view(s)
344
checked on 18-abr-2024
Download(s)
749
checked on 18-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
Este item está licenciado bajo una Licencia Creative Commons