Podrobnosti záznamu

    Correlation of Mid-Cretaceous Plant Microfossils from the Raritan Formation of the Atlantic Coastal Plain With the Peruc-Korycany Formation of the Blansko Graben
    Brenner, G. J.
    Svobodová, Marcela
Typ dokumentu
    článek v odborném periodiku
Zdrojový dokument - seriál
    Acta Palaeobotanica
    Roč. 39, Suppl. 2
    s. 199-209
    Projekt: GA205/97/0075, GA ČR
    Rozsah: 11 s.
Klíčové slovo
Abstrakt (anglicky)
   Comparisons made between the palynological assemblage of the Raritan Formation of northern New Jersey (and partly Potomac Group of the Maryland and Delaware) and those reported from the Blansko Graben, Bohemian Cretaceous Basin, indicate that both conntain many similar elements of angiosperm pollen. Organic-walled cysts of dinoflagellates and acritarchs are present in decreasing amounts in New Jersey surface outcrops, but increasing in the Blansko boreholes. These assemblages are valuable in that it ooccurs in a sequence of strata dated by macrofauna. Three Zones-II, III and IV of the Potomac and Raritan have been used for the correlation with the smaller lithological units A-H (the Peruc Member), I-J (the Korycany Member.The base of the Blansko borehholes V-127, 134 and 135 (unit A, B, palynozone "Retitricolpites" georgensis-Dicotetradites sp.
   A with Zone IIC, characterized by transition assemblage between zones IIB and III with many small reticulate tricolpates and oblate to prolate triangular triicolporoidates and rare tetrads of Dicotetradites sp. A, date as latest Albian to earliest Cenomanian.
    AV ČR Brno, Geologický ústav
Kód přispěvatele
    AV ČR, GLÚ
Zdrojový formát
Datum importu
    8. 8. 2012