Podrobnosti záznamu

Název
    On Late Oligocene to Pliocene depocentre migrations and the evolution of the Carpathian-Pannonian system
Údaj o odpovědnosti
    J.E. Meulenkamp, Michal Kováč, Ivan Cicha
Autor
    Cicha, Ivan, 1932-
    Kováč, Michal, 1952-
    Meulenkamp, J. E.
Jazyk
    anglicky
Zdrojový dokument - seriál
    Tectonophysics
Svazek/č.
    Vol. 266
Strany
    p. 301-317
Rok
    1996
Poznámky
    11 obr., 3 s.bibl.
Předmětová skupina
    geotraverz
    migrace
    mocnost
    molasa
    neogén
    oligocén
    paleogeografie
    pánev sedimentační
    rychlost sedimentace
    vrásnění alpinské
    Západní Karpaty
Geografické jméno
    ČR-Morava
    Evropa střední
Klíčové slovo
    Carpathian-Pannonian
    Depocentre
    Evolution
    Late
    Migrations
    Oligocene
    Pliocene
    System
Abstrakt (anglicky)
   The Late Oligocene to Pliocene evolution of foredeep basins of the Eastern Alps-Carpathians fold and thrust belt is marked by pronounced internal to external and lateral depocentre shifts. The latter shifts, covering a present along-arc distance of 1700 km, portray accelerating rates of foredeep depocentre migration, particularly so in the late Early and in the Middle Miocene, from about 7 to about 45 cm/yr. Lateral depocentre migration came to a close at the beginning increasing accumulation rates in the intersection area of the East European (Ukrainian) and Moesian platforms. Successive steps in the evolution of the foredeep basins had pronounced counterparts in the intra-Carpathian area. The beginning of acceleration of foredeep depocentre migration in latest Early Miocene times was coeval with the inception of intra-Carpathian extensional tectonics.
   The extremely rapid Middle Miocene depocentre shift, coupled with a change in direction of foredeep depocentre migration, corresponded with maximum extension in the intra-Carpathian area. The ensuing end of foredeep depocentre migration around the Middle-Late Miocene transition was coeval with the end of extension of the intra-Carpathian are, which in turn was followed by the inception of overall, thermal subsidence at about 11.5 Ma. The timing of and spatial relationships between discrete, coeval events in arc and intra-arc evolution put unambigous geological constraints on geodynamic modelling of the evolution of the Carpathian-Pannonian system. It is speculated that the geological observations may best be understood in terms of the surficial effects of lateral migration of slab detachment. Such effects would mirror the dominant role of a concentrating slab pull, taken to result in e.g., a time-progressive acceleration of foredeep depocentre migration
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (UNM)
Zdrojový formát
    U
Datum vložení
    23. 1. 2008
Datum importu
    8. 8. 2012