Response to high frequency sea-level change in a fluvial to estuarine succession: Cenomanian palaeovalley fill, Bohemian Cretaceous Basin

Uličný, David; Špičáková, Lenka

doi:10.1144/gsl.sp.1996.104.01.15

Cited by 17 publications

(17 citation statements)

References 36 publications

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“…Nomenclature for the German part of the basin is summarized in Tröger (2003) and S. Voigt et al (2008). The prevailing pattern in the Cenomanian succession is a gradual marine flooding that culminated close to the Cenomanian-Turonian boundary and was punctuated by a number of high-frequency, small-scale, relative sea-level changes (e.g., Uličný & Špičáková 1996). These relative sea-level changes caused rapid shifts in depositional environments along low-gradient slopes and marked palaeogeographic changes.…”

Section: Ne and E-w-trending Faults: The Ohøe Fault Groupmentioning

confidence: 99%

“…Occurrence of marine microplankton above some expansion surfaces in fluvial strata, together with sedimentological indicators of tidal influence such as paired mud drapes or ichnotaxa indicative of a marine environment, link the expansion surfaces to transgressive surfaces in the marine to paralic realms (cf. Uličný & Špičáková 1996).…”

Section: Criteria For Genetic Sequence Definitionmentioning

confidence: 99%

“…It is overstepped further headward by sequence CEN 3 that in the most upstream tributary valleys was represented by fluvial strata (Appendix 1), while the downstream part of the palaeodrainage has become a major estuarine embayment connected to the flooded Central PDS. In the Rynholec Palaeovalley, tide-influenced fluvial strata, showing northeastward palaeoflow, and supratidal marsh deposits (Uličný & Špičáková 1996) are interpreted as the most upstream preserved equivalents of sequence CEN 4 (Fig. 11).…”

Section: Western Palaeodrainage Systemmentioning

confidence: 99%

“…A refined version of the map by Malkovský et al (1974), including inferred palaeoflow directions (Klein et al 1979, T. Voigt 1996Fig. 2), that has, until recently, been the only published basin-scale map of the palaeodrainage pattern, although some local-to regional-scale studies, using extensive borehole datasets, produced more detail on individual parts of the basin (Vajdík & Vybíral 1973, Vajdík et al 1978, Valečka 1979, Rutšek & Kučera 1995, Uličný & Špičáková 1996, Špičáková 1999, Kanta 2000. Facies analysis of some fluvial to estuarine palaeovalley fills (e.g., Uličný & Špičáková 1996) found no evidence for extensive lakes or interior drainage, which indicated that the interpretation of apparently isolated depressions of "freshwater Cenomanian" in the early maps was an artifact of incomplete data coverage and facies interpretation problems.…”

mentioning

confidence: 99%

“…2), that has, until recently, been the only published basin-scale map of the palaeodrainage pattern, although some local-to regional-scale studies, using extensive borehole datasets, produced more detail on individual parts of the basin (Vajdík & Vybíral 1973, Vajdík et al 1978, Valečka 1979, Rutšek & Kučera 1995, Uličný & Špičáková 1996, Špičáková 1999, Kanta 2000. Facies analysis of some fluvial to estuarine palaeovalley fills (e.g., Uličný & Špičáková 1996) found no evidence for extensive lakes or interior drainage, which indicated that the interpretation of apparently isolated depressions of "freshwater Cenomanian" in the early maps was an artifact of incomplete data coverage and facies interpretation problems. Uličný & Čech (in S. Voigt et al 2008) pointed out some relationships between the palaeodrainage systems, palaeohighs of the mid-Cenomanian relief, and some structural elements of the basement, but an up-to-date summary based on all currently available subsurface data, has been missing.…”

mentioning

confidence: 99%

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Palaeodrainage systems at the basal unconformity of the Bohemian Cretaceous Basin: roles of inherited fault systems and basement lithology during the onset of basin filling

Uličný¹,

Špičáková²,

Grygar³

et al. 2009

Bull. Geosci.

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This study presents a synthesis of currently available data on the distribution of Cenomanian-age palaeodrainage systems in the Bohemian Cretaceous Basin, filled by fluvial and estuarine strata, and an interpretation of their relationships to the basement units and fault systems. Much of the progress, compared to previous studies, was made possible by a recent basin-scale evaluation of Cenomanian genetic sequence stratigraphy. Several local palaeodrainage systems developed in the basin, separated by drainage divides of local importance and one major divide -the Holice-Nové Město Palaeohigh -which separated the drainage basins of the Tethyan and Boreal palaeogeographic realms. The locations and directions of palaeovalleys were strongly controlled by the positions of inherited Variscan basement fault zones, whereas the bedrock lithology had the subordinate effect of narrowing or broadening valleys on more vs. less resistant substratum, respectively. The intrabasinal part of the palaeodrainage network followed the slopes toward the Labe (Elbe) System faults and was strongly dominated by the conjugate, NNE-trending, Jizera System faults and fractures. Outlet streams -ultimate trunk streams that drained the basin area -are interpreted to have followed the Lužice Fault Zone toward the Boreal province to the Northwest, and the Železné hory Fault Zone toward the Tethyan province to the Southeast. At both the northwestern and southeastern ends of the Bohemian Cretaceous Basin, shallow-marine or estuarine conditions are proven to have existed during the early Cenomanian. Direct evidence for syn-depositional subsidence during the early to mid-Cenomanian, fluvial to estuarine phase is very rare, and the onset of deposition by fluvial backfilling of the palaeodrainage systems was driven mainly by the long-term rise in global sea level. Subtle surface warping, mostly without detectable discrete faulting, is inferred to have been a response to the onset of the palaeostress regime that later, with further stress accumulation, led to subsidence in fault-bounded depocentres of the Bohemian Cretaceous Basin and uplift of new source areas. •

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Section: Ne and E-w-trending Faults: The Ohøe Fault Groupmentioning

confidence: 99%

Section: Criteria For Genetic Sequence Definitionmentioning

confidence: 99%

Section: Western Palaeodrainage Systemmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Palaeodrainage systems at the basal unconformity of the Bohemian Cretaceous Basin: roles of inherited fault systems and basement lithology during the onset of basin filling

Uličný¹,

Špičáková²,

Grygar³

et al. 2009

Bull. Geosci.

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High‐frequency sequences within a retrogradational deltaic succession: Upper Cenomanian Dunvegan Formation, Western Canada Foreland Basin

Hay

Plint

2020

The Depositional Record

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After prograding for several hundred kilometres during Middle Cenomanian time, the Dunvegan delta complex in north‐west Alberta and adjacent British Columbia experienced stepwise transgression, commencing at about the Middle to Late Cenomanian boundary. Progressive drowning of the delta complex is recorded by Dunvegan allomembers B and A, each comprised of three simple depositional sequences, bounded by composite subaerial unconformity/flooding surfaces. Each sequence represents an array of deltaic depositional environments. Delta‐front sandstones preserve little evidence, such as hummocky cross‐stratification, for powerful storm wave action, although wave and combined‐flow ripples are common. Delta‐front sandstone bodies tend to be smaller and lobate in the lower part of the studied interval, and larger and more linear near the top. This suggests increasingly effective wave‐driven redistribution of sand as more open‐marine conditions were gradually established. The top surfaces of allomembers B and A are locally incised by sandstone‐filled palaeovalleys up to 19 m deep; river incision may have been a response to relative sea‐level fall and/or a change in the ratio of discharge to sediment load. Overall, the shoreline described a broad arc, open to the south east, with the sense of shoreline migration north‐west to south‐east. For each sequence, the shoreline migrated an average of 80 km between transgressive and regressive limits. The transgressive limit shows a progressive landward offset of about 15 km per sequence, culminating in complete drowning of the delta system above sequence A3. Isopach maps show that syn‐depositional tectonic subsidence rotated the basin down to the south‐west; palaeogeographic maps show, however, that the sea floor sloped to the south‐east, implying that sediment redistribution effectively filled all tectonically generated accommodation and maintained a south‐east inclined depositional surface. Transgressions and regressions across this surface were therefore driven primarily by eustasy rather than pulses of tectonic subsidence. Simple calculations based on inferred alluvial gradients of 10–20 cm/km suggest that eustatic excursions of ca 8–16 m would have been sufficient to generate sequence thicknesses on the order of 10 m. Limited geochronologic and biostratigraphic control suggests that the six simple sequences that form Dunvegan allomembers B and A each represent an average of about 41 kyr, suggesting that the orbital obliquity cycle was the primary control on high‐frequency sea‐level cycles.

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Late Cenomanian–Early Turonian facies development and sea-level changes in the Bodenwöhrer Senke (Danubian Cretaceous Group, Bavaria, Germany)

Richardt

Wilmsen

Niebuhr

2012

Facies

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Response to high frequency sea-level change in a fluvial to estuarine succession: Cenomanian palaeovalley fill, Bohemian Cretaceous Basin

Cited by 17 publications

References 36 publications

Palaeodrainage systems at the basal unconformity of the Bohemian Cretaceous Basin: roles of inherited fault systems and basement lithology during the onset of basin filling

Palaeodrainage systems at the basal unconformity of the Bohemian Cretaceous Basin: roles of inherited fault systems and basement lithology during the onset of basin filling

High‐frequency sequences within a retrogradational deltaic succession: Upper Cenomanian Dunvegan Formation, Western Canada Foreland Basin

Late Cenomanian–Early Turonian facies development and sea-level changes in the Bodenwöhrer Senke (Danubian Cretaceous Group, Bavaria, Germany)

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