The Jurassic dinoflagellate cyst zonation of Subboreal Northwest Europe

Poulsen, Niels E.; Riding, James B.

doi:10.34194/geusb.v1.4650

Cited by 84 publications

(74 citation statements)

References 61 publications

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“…Chronostratigraphic ages and range of ammonite zones are according to Ogg & Hinnow (2012). Ostracod zonation according to Plumhoff (1963) and dinocyst zonation according to Poulsen & Riding (2003). Macropalaeontological and micropalaeontological data are from Hoffmann & Martin (1960); Brand & Hoffmann (1963); Pipping (1963); Ernst (1964);Rusb€ ult (1964); St€ ormer & Wienholz (1965); Wormbs (1965a,b); Rusb€ ult (1966b); Wormbs (1966aWormbs ( ,b, 1967; Lehmkuhl (1968);Wehland (1970);Hoffmann (1982); M€ ockel (1982); Rusb€ ult (1988a); Nozon (1990); Koppelhus (1991); Koppelhus & Nielsen (1994); Beutler et al (1996);Heunisch (1997); Rusb€ ult (1997); Arp et al (2000); Blau et al (2000); Brand & M€ onnig (2009); Arp & Seppelt (2012);and Zimmermann et al (2015).…”

Section: Subsurface Mapping and Palaeohydraulic Calculationsmentioning

confidence: 99%

The Toarcian–Bajocian deltaic system in the North German Basin: Subsurface mapping of ancient deltas‐morphology, evolution and controls

Zimmermann

Franz²,

Schaller

et al. 2017

Sedimentology

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Research focussing on the morphology and morphodynamics of modern river deltas has contributed much to the understanding of reservoir geometry and prediction of hydrocarbon splays and deep geothermal aquifers. The interplay of allogenic and autogenic controls results in complex histories of modern river deltas comprising subsequent regressive and transgressive stages of delta formation. The application to ancient examples is still ambiguous and in particular the detailed morphological description of ancient deltas is often hampered by limited subsurface data. This basin‐scale study employs a data set of 15 cored wells and more than 450 logged wells in combination with lithofacies, biofacies and architectural analysis to reconstruct high‐resolution subsurface facies and sand thickness maps of the Toarcian–Bajocian deltaic system in the North German Basin. The results of this study show the evolution from smaller elongate river‐dominated delta types in the Lower and Upper Toarcian (15 000 to 20 000 km²), and a larger lobate river‐dominated delta in the Upper Aalenian (40 000 km²) to a cuspate mixed river‐dominated and wave‐modified delta in the Upper Bajocian (25 000 km²). River‐dominated deltas are formed of distributary deltaic channel belts and associated sheetsands of the delta plain and distributary‐mouth bar complexes with bar‐finger sand architectures of the delta front. Increasing marine processes in the Bajocian resulted in modification of delta complexes forming a shoreface setting with foreshoals, arc‐like chains of ooid‐bearing barrier shoals and back barrier lagoons. The complex history of the Toarcian–Bajocian deltaic system was mainly controlled by allogenic sea‐level fluctuations that triggered the delta progradation and subordinately by allogenic basin reorganization. Autogenic process change of channel avulsion led to locally reduced sediment flux and culminated in lobe abandonment and transgressive shorelines. Differential compaction of underlying deltaic deposits result in strong differences in accommodation space and contributed greatly to large‐scale delta shifts (>300 km).

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Section: Subsurface Mapping and Palaeohydraulic Calculationsmentioning

confidence: 99%

The Toarcian–Bajocian deltaic system in the North German Basin: Subsurface mapping of ancient deltas‐morphology, evolution and controls

Zimmermann

Franz²,

Schaller

et al. 2017

Sedimentology

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“…Large-scale dinoflagellate cyst zonations comprising the entire Jurassic system are available for different continents (e.g. northwest Europe: Woollam & Riding 1983;Riding 1984bRiding , 1987Riding & Thomas 1992;Smelror & Below 1992;Poulsen & Riding 2003; offshore North America: Bujak & Williams 1977;South America: Quattrocchio & Volkheimer 1990;Australia: Helby et al 1987, 2004. In all these zonations, the Aalenian is said to be marked by a relatively low dinoflagellate cyst diversity.…”

Section: Previous Work On Earliest Middle Jurassic Dinoflagellate Cysmentioning

confidence: 99%

Dinoflagellate cyst biostratigraphy of the Opalinuston Formation (Middle Jurassic) in the Aalenian type area in southwest Germany and north Switzerland

Feist-Burkhardt

Pross

2010

LET

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Feist‐Burkhardt, S. & Pross, J. 2010: Dinoflagellate cyst biostratigraphy of the Opalinuston Formation (Middle Jurassic) in the Aalenian type area in southwest Germany and north Switzerland. Lethaia, Vol. 43, pp. 10–31. In order to provide a detailed dinoflagellate cyst stratigraphy of the Lower Aalenian Opalinuston Formation from the Aalenian type area, 68 samples from four boreholes and one outcrop section were analysed. The sample localities are Hausen an der Fils and Wittnau in southwest Germany, Weiach in north Switzerland and Mont Russelin in the Swiss Jura Mountains. Dinoflagellate cyst assemblages were recovered from the Late Toarcian Aalensis Zone to the Late Aalenian Murchisonae Zone. The samples yielded rich, well‐preserved and diverse assemblages with 51 dinoflagellate cyst taxa identified in total. The dinoflagellate cyst distribution data obtained from this study allow a high‐resolution biostratigraphical subdivision of the lowermost Middle Jurassic Opalinuston Formation into four palynostratigraphical units. First and last occurrences, acmes and consistent presence of the species Batiacasphaera sp. A, Evansia cf. granochagrinata, Kallosphaeridium praussii, Nannoceratopsis triangulata, Phallocysta? frommernensis and Wallodinium laganum were selected as the criteria for defining these units. The obtained high‐resolution palynostratigraphical scheme provides a basis for establishing and further refining early Middle Jurassic biostratigraphy in the Boreal and Tethyan realms. □Aalenian, biostratigraphy, dinoflagellate cysts, Germany, Jurassic, Switzerland, Toarcian.

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“…The current study recorded the FAD of G. dimorphum within the Cardioceras vertebrale Subzone (Fig. 6), DSC Palyzone UJP2, consistent with and Duxbury et al (1999), but not with Poulsen and Riding (2003) where the base range of G. dimorphum was placed within the Cardioceras tenuiserratum Zone.…”

Section: Outcrop Evidence: Comparison With the Offshore Fisher Bank Bmentioning

confidence: 49%

A Stratigraphic Review of the Late Callovian to Oxfordian Interval, Fisher Bank Basin Area (Uk Sector, Central North Sea)

Duxbury¹,

Vieira

2017

Journal of Petroleum Geology

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The Jurassic dinoflagellate cyst zonation of Subboreal Northwest Europe

Cited by 84 publications

References 61 publications

The Toarcian–Bajocian deltaic system in the North German Basin: Subsurface mapping of ancient deltas‐morphology, evolution and controls

The Toarcian–Bajocian deltaic system in the North German Basin: Subsurface mapping of ancient deltas‐morphology, evolution and controls

Dinoflagellate cyst biostratigraphy of the Opalinuston Formation (Middle Jurassic) in the Aalenian type area in southwest Germany and north Switzerland

A Stratigraphic Review of the Late Callovian to Oxfordian Interval, Fisher Bank Basin Area (Uk Sector, Central North Sea)

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