Podrobnosti záznamu

Název
    Late Devonian - earliest Mississippian glaciation in Gondwanaland and its biogeographic consequences
Autor
    Bábek, Ondřej
    Devuyst, F.X.
    Díaz-Martínez, E.
    Grader, G.W.
    Isaacson, P.E.
    Kalvoda, Jiří
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Palaeogeography, Palaeoclimatology, Palaeoecology
Svazek/č.
    Roč. 268, č. 3-4
Strany
    16
Rok
    2008
Výraz tezauru
    Carboniferous
    Devonian
    Eustasy
    Glaciation
    Gondwana
    Lacunae
Klíčové slovo
    Biogeographic
    Consequences
    Devonian
    Earliest
    Glaciation
    Gondwanaland
    Late
    Mississippian
Abstrakt (anglicky)
   Late Devonian glaciation is well-documented in three Brazilian basins, and newer work has shown a wider extent for this event, reaching Bolivia, Peru, Central African Republic, Niger, and the USA. Physical evidence for this event includes glacial pavements and polymict striated, and faceted clasts as dropstones and within marine resedimented deposits. Late Devonian (Frasnian? and Famennian) onset of Gondwanaland's glaciations resulted in fundamental changes in coeval and later (Mississippian) depositional systems worldwide. Palynomorphs date the more widespread event within the Retispora lepidophyta (miospore) palynozone, which often occurs with the marine acritarch Umbellasphaeridium saharicum. This initial glaciation continued into earliest Carboniferous (Tournaisian) time. There were several consequences from the short-term glacioeustasy.
Přispěvatel
    MU Brno, Přírodovědecká fakulta
Kód přispěvatele
    MU, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012