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Stratigraphy and eustatic implications of trace fossil events in the Upper Cretaceous chalk of northern Europe

R. N. Mortimore and B. Pomerol
Stratigraphy and eustatic implications of trace fossil events in the Upper Cretaceous chalk of northern Europe (in 13th international sedimentological congress, Ichnologic symposium, David J. Bottjer (editor))
Palaios (June 1991) 6 (3): 216-231

Abstract

Trace fossil horizons comprising Zoophycos, Bathichnus paramoudrae, Chondrites, Trichichnus, Thalassinoides, Spongeliomorpha and Ophiomorpha can be traced over thousands of square kilometers throughout the Anglo-Paris Basin and beyond. Because these trace fossil horizons cross lithofacies boundaries while retaining their time relationships, they are valuable to stratigraphic correlations. Such widespread "trace fossil events" are related to broad environmental changes in the basin, particularly eustatic sea-level fluctuations. These events also may reflect changes in interstitial oxygen concentration or other environmental factors. Broad rhythms in the Upper Cretaceous Chalk identified by these trace fossil events compare favorably with the sea-level curves of Vail et al. (1977), Haq et al. (1987), and Hancock (1989). Some of the principal trace fossil marker horizons correlate with the major eustatic events. These trace fossil events appear to be more sensitive indicators of eustacy than other criteria, such as hardgrounds. Several key trace fossil events occur in Cenomanian to mid-Campanian Chalk. Some appear to be diachronous, owing to the structural arrangement of the basin in relation to Atlantic water mass movements. This has resulted in the conspicuous silicification of, for example, the Fecamp Paramoudra Flint Member on the southwest margin.


ISSN: 0883-1351
Serial Title: Palaios
Serial Volume: 6
Serial Issue: 3
Title: Stratigraphy and eustatic implications of trace fossil events in the Upper Cretaceous chalk of northern Europe
Title: 13th international sedimentological congress, Ichnologic symposium
Author(s): Mortimore, R. N.Pomerol, B.
Author(s): Bottjer, David J.editor
Affiliation: Brighton Polytech., Dep. Civ. Eng., Brighton, United Kingdom
Affiliation: Univ. South. Calif., Dep. Geol. Sci., Los Angeles, CA, United States
Pages: 216-231
Published: 199106
Text Language: English
Publisher: Society of Economic Paleontologists and Mineralogists, Tulsa, OK, United States
Meeting name: 13th international sedimentological congress, Ichnologic symposium
Meeting location: Nottingham, GBR, United Kingdom
Meeting date: 199008Aug. 1990
References: 60
Accession Number: 1991-054707
Categories: Sedimentary petrology
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: strat. cols., sketch map
N50°00'00" - N55°45'00", W06°30'00" - E01°30'00"
N48°00'00" - N50°00'00", E01°00'00" - E05°00'00"
Secondary Affiliation: Univ. Paris-Creteil, FRA, France
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data supplied by SEPM (Society for Sedimentary Geology), Tulsa, OK, United States
Update Code: 1991
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