Details
| Titel in Übersetzung | High-resolution sequence stratigraphy of a Late Jurassic mixed carbonate-siliciclastic ramp, Lower Saxony Basin, Northwestern Germany |
|---|---|
| Originalsprache | Deutsch |
| Seiten (von - bis) | 263-283 |
| Seitenumfang | 21 |
| Fachzeitschrift | Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften |
| Jahrgang | 161 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - Sept. 2010 |
Abstract
This paper presents a high-resolution sequence stratigraphic analysis of Late Jurassic storm-dominated, shallowwater mixed carbonate-siliciclastic ramp deposits (Korallenoolith Formation) of the Lower Saxony Basin. Detailed mapping and logging of eight sections along a 45 km W-E transect (Wiehengebirge, Wesergebirge, Süntel) were carried out to document the lateral and vertical facies architecture. Considerable thickness variations of the Korallenoolith Formation along this transect indicate synsedimentary extensional tectonics. New data from microfacies, sedimentary structures, gamma ray signals, carbonate contents and δ13C and δ18O stable isotopes were integrated to characterise and define depositional sequences. The periodic variations of the data series were evaluated by spectral analysis. Six medium-scale depositional sequences (3-28 m thick) have been recognized, built-up by 1-6 m thick small-scale sequences. Medium-scale sequences probably represent 400 Ka Milankovitch cycles and can be correlated along the 45 km W-E transect. They form larger-scale regressive-transgressive sequence sets, bounded by a major unconformity. This unconformity probably corresponds to the R8b/T9 sequence boundary. However, the sparse biostratigraphic markers prevent a precise correlation with the sea-level chart after Hardenbol et al. (1998).
Schlagwörter
- Late Jurassic, Lower Saxony Basin, Milankovitch cycles, Mixed carbonate-siliciclastic ramp, Sequence stratigraphy, Spectral analysis, Stable isotopes, Synsedimentary tectonics
ASJC Scopus Sachgebiete
- Erdkunde und Planetologie (insg.)
- Allgemeine Erdkunde und Planetologie
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in: Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften, Jahrgang 161, Nr. 3, 09.2010, S. 263-283.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Hochaufl Ösende Sequenzstratigrafie einer oberjurassischen, gemischt karbonatisch-siliziklastischen Rampe, Niedersächsisches Becken, NW-Deutschland
AU - Kästner, Marleen
AU - Schülke, Immo
AU - Winsemann, Jutta
AU - Böttcher, Jürgen
N1 - Copyright: Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2010/9
Y1 - 2010/9
N2 - This paper presents a high-resolution sequence stratigraphic analysis of Late Jurassic storm-dominated, shallowwater mixed carbonate-siliciclastic ramp deposits (Korallenoolith Formation) of the Lower Saxony Basin. Detailed mapping and logging of eight sections along a 45 km W-E transect (Wiehengebirge, Wesergebirge, Süntel) were carried out to document the lateral and vertical facies architecture. Considerable thickness variations of the Korallenoolith Formation along this transect indicate synsedimentary extensional tectonics. New data from microfacies, sedimentary structures, gamma ray signals, carbonate contents and δ13C and δ18O stable isotopes were integrated to characterise and define depositional sequences. The periodic variations of the data series were evaluated by spectral analysis. Six medium-scale depositional sequences (3-28 m thick) have been recognized, built-up by 1-6 m thick small-scale sequences. Medium-scale sequences probably represent 400 Ka Milankovitch cycles and can be correlated along the 45 km W-E transect. They form larger-scale regressive-transgressive sequence sets, bounded by a major unconformity. This unconformity probably corresponds to the R8b/T9 sequence boundary. However, the sparse biostratigraphic markers prevent a precise correlation with the sea-level chart after Hardenbol et al. (1998).
AB - This paper presents a high-resolution sequence stratigraphic analysis of Late Jurassic storm-dominated, shallowwater mixed carbonate-siliciclastic ramp deposits (Korallenoolith Formation) of the Lower Saxony Basin. Detailed mapping and logging of eight sections along a 45 km W-E transect (Wiehengebirge, Wesergebirge, Süntel) were carried out to document the lateral and vertical facies architecture. Considerable thickness variations of the Korallenoolith Formation along this transect indicate synsedimentary extensional tectonics. New data from microfacies, sedimentary structures, gamma ray signals, carbonate contents and δ13C and δ18O stable isotopes were integrated to characterise and define depositional sequences. The periodic variations of the data series were evaluated by spectral analysis. Six medium-scale depositional sequences (3-28 m thick) have been recognized, built-up by 1-6 m thick small-scale sequences. Medium-scale sequences probably represent 400 Ka Milankovitch cycles and can be correlated along the 45 km W-E transect. They form larger-scale regressive-transgressive sequence sets, bounded by a major unconformity. This unconformity probably corresponds to the R8b/T9 sequence boundary. However, the sparse biostratigraphic markers prevent a precise correlation with the sea-level chart after Hardenbol et al. (1998).
KW - Late Jurassic
KW - Lower Saxony Basin
KW - Milankovitch cycles
KW - Mixed carbonate-siliciclastic ramp
KW - Sequence stratigraphy
KW - Spectral analysis
KW - Stable isotopes
KW - Synsedimentary tectonics
UR - http://www.scopus.com/inward/record.url?scp=79959302546&partnerID=8YFLogxK
U2 - 10.1127/1860-1804/2010/0161-0263
DO - 10.1127/1860-1804/2010/0161-0263
M3 - Artikel
AN - SCOPUS:79959302546
VL - 161
SP - 263
EP - 283
JO - Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften
JF - Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften
SN - 1860-1804
IS - 3
ER -