Record details

Title
    Astrochronology of the Late Turonian: implications for the behavior of the carbon cycle at the demise of peak greenhouse
Author
    Čech, S.
    Laurin, Jiří
    Svobodová, Marcela
    Štaffen, Z.
    Uličný, David
Language
    anglicky
Publication type
    článek v odborném periodiku
Source title - serial
    Earth and Planetary Science Letters
Vol./nr.
    Roč. 394, -
Pages
    s. 254-269
Year
    2014
Notes
    doplnit vše
    Projekt: GAP210/10/1991, GA ČR3cav_un_auth*0263305
    Projekt: LH12041, GA MŠk3cav_un_auth*0281795
    Rozsah: 16 s.
Subject category
    astrochronology
    carbon cycle
    carbon isotopes
    Coniacian
    Milankovitch
    Turonian
Keyword
    Astrochronology
    Behavior
    Carbon
    Cycle
    Demise
    Greenhouse
    Implications
    Late
    Peak
    Turonian
Abstract (in english)
   A series of prominent carbon-cycle perturbations, indicated by carbon-isotope excursions of up to 2 , marked climatic and oceanographic changes that followed the peak mid-Cretaceous greenhouse. The nature and forcing mechanisms of these changes remain poorly understood, partly due to the lack of a detailed temporal control in this interval. Here we present an orbitally calibrated time scale, which is based on hemipelagic rhythmites in the Bohemian Cretaceous Basin, and which can be linked to the established chronostratigraphic framework using inoceramid biostratigraphy and carbon-isotope signature.
Contributor
    AV ČR Brno, Geologický ústav
Contributor code
    AV ČR, GLÚ
Source format
    U
Import date
    23. 10. 2014