Microbially induced wrinkle structures in Middle Devonian siliciclastics from the Prague Basin, Czech Republic

Beitrag in einer Fachzeitschrift
(Online-Publikation)


Details zur Publikation

Autorinnen und Autoren: Vodrážková S, Vodrážka R, Munnecke A, Franců J, Al‐Bassam K, Halodová P, Tonarová P
Zeitschrift: Lethaia
Jahr der Veröffentlichung: 2018
Band: 52
Heftnummer: 2
Seitenbereich: 149-164
ISSN: 0024-1164
Sprache: Englisch


Abstract

The occurrence of wrinkle structures in Middle Devonian deep‐water
siliciclastic sequences of the Prague Basin (Roblín Member, Srbsko
Formation, Givetian) is reported and interpreted to be microbially
induced. Current and/or gravitational forces are considered the simplest
explanation of the origin of these structures. Taking into account the
tectonic activity linked with ongoing Variscan orogeny, the wrinkle
structures could also be interpreted as soft sediment deformation
structures originating due to exposure of mat‐bearing sediment to
seismic shocks. The distribution of n‐alkanes and isoprenoids suggests
two types of prevailing biological sources, namely phytoplankton,
representing organic material from the water column, and benthic
bacteria. Judging from the sedimentary facies and lack of petrographic
characteristics suggestive of light competition, the microbial mats are
interpreted to be formed by non‐autotrophic bacteria.


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Munnecke, Axel Prof. Dr.
Professur für Paläontologie (Schwerpunkt Faziesanalyse)


Einrichtungen weiterer Autorinnen und Autoren

Czech Geological Survey / Česká geologická služba


Zitierweisen

APA:
Vodrážková, S., Vodrážka, R., Munnecke, A., Franců, J., Al‐Bassam, K., Halodová, P., & Tonarová, P. (2018). Microbially induced wrinkle structures in Middle Devonian siliciclastics from the Prague Basin, Czech Republic. Lethaia, 52(2), 149-164. https://dx.doi.org/10.1111/let.12280

MLA:
Vodrážková, Stanislava, et al. "Microbially induced wrinkle structures in Middle Devonian siliciclastics from the Prague Basin, Czech Republic." Lethaia 52.2 (2018): 149-164.

BibTeX: 

Zuletzt aktualisiert 2019-29-03 um 19:10