Sedimentology and carbon isotope stratigraphy of the Rhaetian Hochalm section (Late Triassic, Austria)
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Sedimentology and carbon isotope stratigraphy of the Rhaetian Hochalm section (Late Triassic, Austria). / Rizzi, Małgorzata; Thibault, Nicolas; Ullmann, Clemens V.; Ruhl, Micha; Olsen, Troels K.; Moreau, Julien; Clémence, Marie Emilie; Mette, Wolfgang; Korte, Christoph.
I: Global and Planetary Change, Bind 191, 103210, 2020.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Sedimentology and carbon isotope stratigraphy of the Rhaetian Hochalm section (Late Triassic, Austria)
AU - Rizzi, Małgorzata
AU - Thibault, Nicolas
AU - Ullmann, Clemens V.
AU - Ruhl, Micha
AU - Olsen, Troels K.
AU - Moreau, Julien
AU - Clémence, Marie Emilie
AU - Mette, Wolfgang
AU - Korte, Christoph
PY - 2020
Y1 - 2020
N2 - The Rhaetian (~201–209 Ma, the latest stage of the Triassic) is an important time-interval for the study of environmental changes preceding the End-Triassic Mass extinction. A detailed sedimentological and chemostratigraphic study was conducted in the lower Kössen Formation at Hochalm (Austria), the type-section of the Hochalm Member (Mb). This section exposes mid-Rhaetian sediments deposited in an intraplatform shallow marine basin on the north-western margin of the Tethys. The study highlights eight apparent shallowing-upward sequences from the middle of Unit 2 to Unit 4 of the Hochalm Mb stacked within the long-term transgression that characterizes the Kössen Formation. Both the bulk carbonate and the bulk organic matter δ13C records indicate the presence of a distinct increase in carbon isotope values in the lower part of the lower Hochalm Mb. This excursion might represent a new chemostratigraphic marker that could be used for refining the Rhaetian stratigraphy and represents another important Late Triassic carbon-cycle perturbation prior to the major disturbance associated with the End Triassic biotic crisis.
AB - The Rhaetian (~201–209 Ma, the latest stage of the Triassic) is an important time-interval for the study of environmental changes preceding the End-Triassic Mass extinction. A detailed sedimentological and chemostratigraphic study was conducted in the lower Kössen Formation at Hochalm (Austria), the type-section of the Hochalm Member (Mb). This section exposes mid-Rhaetian sediments deposited in an intraplatform shallow marine basin on the north-western margin of the Tethys. The study highlights eight apparent shallowing-upward sequences from the middle of Unit 2 to Unit 4 of the Hochalm Mb stacked within the long-term transgression that characterizes the Kössen Formation. Both the bulk carbonate and the bulk organic matter δ13C records indicate the presence of a distinct increase in carbon isotope values in the lower part of the lower Hochalm Mb. This excursion might represent a new chemostratigraphic marker that could be used for refining the Rhaetian stratigraphy and represents another important Late Triassic carbon-cycle perturbation prior to the major disturbance associated with the End Triassic biotic crisis.
KW - Carbon isotopes
KW - Rhaetian
KW - Sedimentology
KW - Upper Triassic
U2 - 10.1016/j.gloplacha.2020.103210
DO - 10.1016/j.gloplacha.2020.103210
M3 - Journal article
AN - SCOPUS:85085211059
VL - 191
JO - Global and Planetary Change
JF - Global and Planetary Change
SN - 0921-8181
M1 - 103210
ER -
ID: 243852198