Record details

Title
    The Odivelas Limestone: evidence for a Middle Devonian reef system in western Ossa-Morena Zone (Portugal)
Author
    Fonseca, Paulo E.
    Galle, Arnošt
    Hladil, Jindřich
    Koptíková, Leona
    Machado, Gil
    Rocha, Fernando T.
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Geologica Carpathica
Vol./nr.
    Roč. 60, č. 2
Pages
    17
Year
    2009
Thesaurus term
    Beja Igneous Complex
    biostratigraphy
    carbonate petrology
    Eifelian/Givetian
    magnetic susceptibility
    Middle Devonian
    Ossa Morena Zone
    Paleozoic orogens
    petrology
    reef fauna
Keyword
    Devonian
    Evidence
    Limestone
    Middle
    Odivelas
    Ossa-Morena
    Portugal
    Reef
    System
    Western
    Zone
Abstract (in english)
   The Odivelas Limestone constitutes one of the few records of Middle Devonian sedimentation in the western Ossa-Morena Zone. Although deformed and metamorphosed the limestones have an abundant fossil content which allows their positioning as late Eifelian/early Givetian in age and to relate the reef fauna with the typical Rhenish facies for the same time period. Magnetic susceptibility analysis was attempted and is in agreement with the biostratigraphy, but the limited extent of sections and the metamorphism precludes firm correlations. The field evidence, petrographic and geochemical analysis point to a close paleogeographical relation and dependence of the reef system on volcanic structures which are included in the Beja Igneous Complex. The age of part of the volcanic and sub-volcanic suite of this complex is thus constrained.
Contributor
    UK Praha, Přírodovědecká fakulta
Contributor code
    UK, PřF
Source format
    R
Import date
    27. 4. 2014