en
Scientific article
English

Florida Bay: Modern analogue for Lofer cyclothems?

Published inSedimentology, vol. 69, p. 254-281
Publication date2022
Abstract

Lofer cyclothems of the Alpine Upper Triassic have many features in common with Holocene sediments of Florida Bay. The modal ‘complete' Lofer cycle is essentially symmetrical, having a deepening and shoaling phase, as does the cycle-in-progress in Florida Bay. Lateral discontinuity and thickness variations within members of the Lofer cyclothems indicate syn-depositional relief, possibly in the form of mud banks, the signature feature of Florida Bay sedimentation. Spatial and temporal dimensions, although poorly constrained, appear comparable. Analogous depositional textures, biota and sedimentary structures, while not unique to either environment, strengthen the inferences that can be made about the Triassic depositional environment and regarding future evolution of the modern environment. The striking similarities between the Holocene icehouse sediments and the Late Triassic greenhouse deposits suggest that sedimentation patterns at the scale of individual cycles or parasequences may be largely independent of the global climate regime.

Keywords
  • Carbonates
  • Comparative sedimentology
  • Cycles
  • Dachs tein Lime-
  • Stone
  • Florida Bay
  • Greenhouse
  • Holocene
  • Icehouse
  • Late Triassic
Funding
  • Swiss National Science Foundation - 56491
  • Swiss National Science Foundation - 113356
Citation (ISO format)
ENOS, Paul, SAMANKASSOU, Elias. Florida Bay: Modern analogue for Lofer cyclothems? In: Sedimentology, 2022, vol. 69, p. 254–281. doi: 10.1111/sed.12918
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
ISSN of the journal1365-3091
144views
0downloads

Technical informations

Creation09/15/2021 5:24:00 PM
First validation09/15/2021 5:24:00 PM
Update time03/16/2023 1:18:50 AM
Status update03/16/2023 1:18:49 AM
Last indexation05/06/2024 8:05:21 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack