Development of facies and C/O-isotopes in transects through the Ludlow of Gotland: Evidence for global and local influences on a shallow-marine environment

  title={Development of facies and C/O-isotopes in transects through the Ludlow of Gotland: Evidence for global and local influences on a shallow-marine environment},
  author={Christian Samtleben and Axel Munnecke and Torsten Bickert},
SummaryThe Silurian of Gotland is characterized by repeated changes in depositional facies development. The deposition of uniform sequences of micritic limestones and marls was interrupted four times by the growth of reef complexes and the formation of expanded carbonate platforms. Coinciding with these, often abrupt, facies changes extinction events occurred which predominantly affected nektonic and planktonic organisms. Ratios of carbon- and oxygen-isotopes covary with the facies development… 

Stable carbon isotope development and sea-level changes during the Late Ludlow (Silurian) of the Łysogóry region (Rzepin section, Holy Cross Mountains, Poland)

The Ludlow deposits of the Winnica Formation in the Rzepin section (Holy Cross Mountains, Poland) have been studied with respect to their facies evolution and stable carbon isotope ratios from

Faunal and facies changes through the mid Homerian (late Wenlock, Silurian) positive carbon isotope excursion in Podolia, western Ukraine

The late Wenlock is characterized by two global regressive-transgressive eustatic cycles in association with a double-peaked positive carbon isotope excursion. The onset of the excursion coincides

Environmental and biotic changes in subtropical isolated carbonate platforms during the Late Silurian Kozlowskii Event, Prague Basin

Abstract The Kozlowskii Event extinction in the Prague Basin is not prominent in number of extinct taxa among Ludfordian extinctions, but by its short duration and changes in community structure in

Facies development across the Late Silurian Lau Event based on temperate carbonates of the Prague Basin (Czech Republic)

The facies development through the stratigraphical interval of the Silurian (late Ludlow) Lau Event and the associated major δ13C record excursion have been studied in the Prague Basin. The

Anomalous massive water-column carbonate precipitation (whitings) as another factor linking Silurian oceanic events

Abstract The geological record of the mid-Homerian Mulde event in the deep-water settings of the East European Platform is characterized by a profound graptolite extinction event and a low amplitude



The Silurian of Gotland (Sweden): facies interpretation based on stable isotopes in brachiopod shells

The Silurian of Gotland, Sweden, consists of 440 m of carbonate deposits. Repeatedly, uniform sequences of micritic limestones and marls are interrupted by complex-structured reefs and by adjacent

Carbon isotope excursion near the Wenlock-Ludlow, (Silurian) boundary in the Anglo-Welsh area

Oxygen and carbon isotope analyses have been performed at close sampling intervals on rocks from several exposures that show the boundary between the Wenlock and Ludlow Series in the classic Silurian

Oxygen and carbon isotopic composition of Silurian brachiopods: Implications for coeval seawater and glaciations

We collected 236 calcitic brachiopod shells, covering the entire Silurian Period (~ 30 m.y.), at high temporal resolution from stratotype sections from Anticosti Island (Canada), Wales (United

An oceanic model for lithological and faunal changes tested on the Silurian record

  • L. Jeppsson
  • Environmental Science, Geography
    Journal of the Geological Society
  • 1990
A model for oceanic cycles is presented. The cycles are expressed as changes between more humid low latitude and cooler high latitude climates (P episodes), and dryer low latitude and warmer high

Composition Structure and Environmental Setting of Silurian Bioherms and Biostromes in Northern Europe

  • R. Riding
  • Environmental Science, Geography
  • 1981
Silurian reefs of northern Europe occur in cratonic sedimentary sequences which have been relatively well documented stratigraphically and paleontologically although the reefs have generally been

Late Ordovician‐Early Silurian fluctuations in sea level from eastern Anticosti Island, Quebec

Over 1,000 m of Upper Ordovician to Lower Silurian mixed carbonate and clastic strata on Anticosti Island are nearly tectonically undisturbed, despite their proximity to the Northern Appalachians