1996
DOI: 10.1007/bf02422234
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The Silurian of Gotland (Sweden): facies interpretation based on stable isotopes in brachiopod shells

Abstract: 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 platform sediments. Generally, the alteration of facies is interpreted as the result of sea-level fluctuations caused by a gradual regression with superimposed minor transgressive pulses. The purpose of this study is a facies interpretation based on both field observations and stable isotope measurements of brachiopo… Show more

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Cited by 148 publications
(95 citation statements)
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“…part of Avalonia which joined Baltica in the late Ordovician, commenced roughly 12-15 years ago. Data now available [Brenchley et al, 1994;Wenzel and Joachimski, 1996;Samtleben et al, 1996;Kaljo et al, 1997Kaljo et al, , 1998Marshall et al, 1997;Azmy et al, 1998;Wigforss-Lange, 1999] allow us to discuss a more or less continuous curve of δ 13 C values beginning with the middle Caradoc Kinnekulle "big" bentonite until the Silurian-Devonian boundary beds in the Ventspils core (Latvia). In the course of this time (~38 m.y.)…”
Section: General Commentsmentioning
confidence: 99%
See 1 more Smart Citation
“…part of Avalonia which joined Baltica in the late Ordovician, commenced roughly 12-15 years ago. Data now available [Brenchley et al, 1994;Wenzel and Joachimski, 1996;Samtleben et al, 1996;Kaljo et al, 1997Kaljo et al, , 1998Marshall et al, 1997;Azmy et al, 1998;Wigforss-Lange, 1999] allow us to discuss a more or less continuous curve of δ 13 C values beginning with the middle Caradoc Kinnekulle "big" bentonite until the Silurian-Devonian boundary beds in the Ventspils core (Latvia). In the course of this time (~38 m.y.)…”
Section: General Commentsmentioning
confidence: 99%
“…Following careful analysis one can assure reasonably [e.g. Samtleben et al, 1996] that it is possible to identify a primary isotopic signal, which reflects original seawater composition, formed usually according to coeval environmental conditions. Accepting this premise as a pattern, it is possible to investigate reasons for changes in the isotope record connected with glacial events established on Gondwana and to discuss the dating of these events.…”
Section: Introductionmentioning
confidence: 99%
“…Petrographic studies on Gotland have revealed that the Silurian carbonates represent an extraordinary case among Palaeozoic carbonate rocks as early diagenetic characteristics and fossils are exceptionally TEXT-FIG. 1. A, map of Gotland including topostratigraphy, facies distribution (after Samtleben et al 1996;modi®ed after Hede 1921, 1960, Sundquist 1982, and Frykman 1989 and sample distribution. B, stratigraphic scheme for the Silurian of Gotland after Samtleben et al (1996) and Laufeld and Jeppsson (1976); ages according to Harland et al (1990).…”
Section: G E O L O G I C a L S E T T I N Gmentioning
confidence: 99%
“…Unfortunately, detailed stratigraphic information and biogeochemical data are still rare for many of these events, hindering elucidation of cause and effect relationships and resolution of the progression of temporal events. For the Early Silurian, however, recent detailed isotope studies, based on brachiopods, conodonts and carbonate matrices from Gotland, Estonia, England, North America and Australia (e.g., Talent et al, 1993;Samtleben et al, 1996;Wenzel and Joachimski, 1996;Azmy et al, 1999;Fig. 1), enable us to utilize this database in an attempt to elucidate the geological meaning of the Early Silurian isotope record of the Niagara Gorge.…”
Section: Introductionmentioning
confidence: 99%