Facies Discrimination in a Mixed Fluvio-Eolian Setting Using Elemental Whole-Rock Geochemistry--Applications for Reservoir Characterization

Svendsen, Johan B.; Friis, Henrik; Stollhofen, Harald; Hartley, Neil

doi:10.2110/jsr.2007.008

Cited by 28 publications

(12 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The interplay between two significant and different supplies being transported in a fluvial system and in a dune field, respectively, may lead to a complex mixture due to reworking as described by Meadows & Beach () and by Svendsen et al . ().…”

Section: Discussionmentioning

confidence: 97%

Provenance of the Lower Triassic Bunter Sandstone Formation: implications for distribution and architecture of aeolian vs. fluvial reservoirs in the North German Basin

et al. 2015

View full text Add to dashboard Cite

Zircon U–Pb geochronometry, heavy mineral analyses and conventional seismic reflection data were used to interpret the provenance of the Lower Triassic Bunter Sandstone Formation. The succession was sampled in five Danish wells in the northern part of the North German Basin. The results show that sediment supply was mainly derived from the Ringkøbing‐Fyn High situated north of the basin and from the Variscan belt located south of the basin. Seismic reflection data document that the Ringkøbing‐Fyn High was a local barrier for sediment transport during the Early Triassic. Hence, the Fennoscandian Shield did not supply much sediment to the basin as opposed to what was previously believed. Sediment from the Variscan belt was transported by wind activity across the North German Basin when it was dried out during deposition of the aeolian part of the Volpriehausen Member (lower Bunter Sandstone). Fluvial sand was supplied from the Ringkøbing‐Fyn High to the basin during precipitation events which occurred most frequently when the Solling Member was deposited (upper Bunter Sandstone). Late Neoproterozoic to Carboniferous zircon ages predominate in the Volpriehausen Member where the dominant age population with a peak age of 337 Ma corresponds to the culmination of Variscan high‐grade metamorphism, whereas a secondary age population with a peak at 300 Ma matches the timing of volcanism and magmatism at the Carboniferous/Permian boundary in the northern Variscan belt. Parts of the basement in the Ringkøbing‐Fyn High were outcropping during the Early Triassic and zircon ages similar to this Mesoproterozoic basement are present in the Bunter Sandstone. The heavy mineral assemblage of the Solling Member is uniform and has a high garnet content compared to the contemporaneous sediments in the Norwegian‐Danish Basin and in the southern part of the North German Basin. This finding confirms that a local source in the Ringkøbing‐Fyn High supplied most of the fluvial sediment in the northern part of the North German Basin. The northernmost part of the Bunter Sandstone is situated on a platform area that is separated from the basin area by a broad WNW–ESE‐oriented fault zone. The most promising reservoir in the basin area is the aeolian Volpriehausen Member since the sandstone has a wide lateral distribution and a constant thickness. The alluvial to ephemeral fluvial Solling Member may be a good reservoir in the platform area and marginal basin area, but the complex sand‐body architecture makes it difficult to predict the reservoir quality.

show abstract

Section: Discussionmentioning

confidence: 97%

Provenance of the Lower Triassic Bunter Sandstone Formation: implications for distribution and architecture of aeolian vs. fluvial reservoirs in the North German Basin

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The Toarcian CIE, however, has been interpreted as either derived from dissociation of gas hydrates [Hesselbo et al, 2000[Hesselbo et al, , 2007Cohen et al, 2004Cohen et al, , 2007Kemp et al, 2005;McElwain et al, 2005;Hesselbo and Pie½kowski, 2011] or release methane due to metamorphism of coals [Svendsen et al, 2007;Mazzini et al, 2010;Gröcke et al, 2009]. These processes may have act singly or in combination, with no consensus yet achieved as to their relative importance [van de Schootbrugge et al, 2005].…”

Section: Potential Causes and Consequences Of Oaes (Fig 3)mentioning

confidence: 99%

The Late Hauterivian Faraoni ‘Oceanic Anoxic Event’: an update

Baudin

Riquier

2014

Bulletin De La Société Géologique De France

View full text Add to dashboard Cite

Most oceanic anoxic events (OAEs) took place during the middle part of the Cretaceous and the Late Hauterivian probably recorded the first anoxic event within this peculiar time interval. The so-called Faraoni event (~131 Ma) was initially defined as a short-lived anoxic event restricted to the Mediterranean domain. Since its recognition, numerous geochemical studies were conducted on the Faraoni event and new occurrences of this event were suggested outside the Tethyan domain. This paper presents an update on the Late Hauterivian Faraoni event and examines if this event agrees with the definition of OAEs. Le point sur l'événement anoxique océanique Faraoni de l'Hauterivien supérieur Mots-clés. -Evénements anoxiques, Crétacé, Paléocéanographie, Géochimie sedimentaire Résumé. -La plupart des événements anoxiques océaniques (OAEs) ont eu lieu durant la période moyenne du Crétacé et l'Hauterivien supérieur enregistre potentiellement le premier de ces événements. L'événement Faraoni (~131 Ma) a été initialement défini comme un bref événement anoxique limité au domaine méditerranéen. Depuis sa reconnaissance, de nombreuses études géochimiques ont été menées sur l'événement Faraoni et il aurait été vraisemblablement reconnu dans des bassins hors de la Téthys. Cet article est l'occasion de faire le point sur l'événement Faraoni de l'Hauterivien supérieur et d'examiner s'il correspond bien à la définition des OAEs.

show abstract

“…By determining element-mineral affinities, some indication as to whether the abundance and distribution of the elements is influenced by changes in provenance, depositional environment, weathering, or diagenesis can be gained. Pearce et al (2005a) used principal-component analysis to determine elemental associations from which the mineralogical affinities elements have been inferred (also see Svendsen et al, 2007, for a detailed discussion of use of principal-component analysis and the modeling of geochemical data). The following element-mineral affinities have been deduced for the Upper Carboniferous sequences of the Southern North Sea:…”

Section: Mineralogical Affinities Of Elementsmentioning

confidence: 99%

Chemostratigraphy of Upper Carboniferous (Pennsylvanian) Sequences from the Southern North Sea (United Kingdom)

Pearce¹,

Martin²,

Cooper³

et al. 2010

Application of Modern Stratigraphic TechniquesTheory and Case Histories</Subtitle>

View full text Add to dashboard Cite

Important gas reservoirs occur in the Upper Carboniferous coal measures and red beds of the Southern North Sea. The thick red beds of the Boulton and Ketch formations are difficult to correlate, due to poor internal seismic definition, repetitive e-log signatures, and their barren nature. Although the underlying coal measures of the Westoe, Cleaver, and Caister Formations have better seismic resolution and contain palynomorphs, coals that die out laterally and the lack of diagnostic taxa over certain intervals contribute to their correlation being problematical. However, the application of chemostratigraphy to more than sixty wells from numerous fields in UK Quadrants 44 and 49, as well as from Dutch sector Blocks E, F, and K, allows the establishment of an independent, robust, detailed correlation framework for the aforesaid red beds and coal measures.Presented in this paper are correlative chemostratigraphic reference sections for the Caister, Westoe, Cleaver, Ketch, Boulton, and Step Graben formations. The chemostratigraphic zonations erected for these formations are based on variations in silty claystone geochemistry that can be tied to changes in provenance, climate, and depositional environment. In addition, the zonations are supported by stratigraphic changes in sandstone and coal geochemistry, the geochemical correlation of tonsteins and marine bands, and the recognition of different types of paleosol in the above formations.The chemostratigraphic correlation framework enables specific broad intervals ("packages") to be correlated between fields and is also used to constrain seismic correlations with a view to highlighting potential exploration targets. Furthermore, the same framework allows much thinner intervals ("units" and "subunits") to be correlated within fields: these smaller-scale correlations enhance reservoir correlations with respect to the development of fields such as Boulton, Schooner, Tyne, Ketch, and Topaz. In addition to using inorganic geochemical data to characterize and correlate sedimentological packages, data can also used to identify and correlate marker horizons and surfaces (tonsteins, coals, marine bands, major paleosols), which may be highly correlative low-diachrony surfaces, which greatly enhance the overall validity of the stratigraphic correlation scheme.

show abstract

Facies Discrimination in a Mixed Fluvio-Eolian Setting Using Elemental Whole-Rock Geochemistry--Applications for Reservoir Characterization

Cited by 28 publications

References 48 publications

Provenance of the Lower Triassic Bunter Sandstone Formation: implications for distribution and architecture of aeolian vs. fluvial reservoirs in the North German Basin

Provenance of the Lower Triassic Bunter Sandstone Formation: implications for distribution and architecture of aeolian vs. fluvial reservoirs in the North German Basin

The Late Hauterivian Faraoni ‘Oceanic Anoxic Event’: an update

Chemostratigraphy of Upper Carboniferous (Pennsylvanian) Sequences from the Southern North Sea (United Kingdom)

Contact Info

Product

Resources

About