High-Resolution Forward Stratigraphic Modeling of Ca2-Carbonate Platforms and Off-Platform Highs (Upper Permian, Northern Germany)

Leyrer, Karl; Strohmenger, Christian J.; Rockenbauch, K.; Bechstaedt, T.

doi:10.1007/978-3-662-03902-1_16

Cited by 9 publications

(12 citation statements)

References 8 publications

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“…These ‘classic’ Zechstein cycles can be further subdivided hierarchically (Tucker, 1991; Strohmenger et al. , 1996a,b; Wagner & Peryt, 1997; Leyrer et al. , 1999).…”

Section: Geological Settingmentioning

confidence: 99%

“…The whole Zechstein interval represents a second‐order cycle (Tucker, 1991; Strohmenger et al. , 1996a; Leyrer et al. , 1999) with duration of about 7 Myr (Menning & German Stratigraphic Commission, 2002).…”

Section: Geological Settingmentioning

confidence: 99%

“…, 1996a, for the southern margin of the Zechstein Basin in the Weser‐Ems area; Strohmenger et al. , 1996b, and Leyrer et al. , 1999, for southeastern Brandenburg; and Wagner & Peryt, 1997, for the Polish part of the basin).…”

Section: Sequence Stratigraphymentioning

confidence: 99%

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Sequence stratigraphy of a carbonate‐evaporite succession (Zechstein 1, Hessian Basin, Germany)

Becker

Bechstädt

2006

Sedimentology

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The evaporitic Hessian Zechstein Basin is a sub‐basin of the Southern Zechstein Basin, situated at its southern margin. Twelve facies groups were identified in the Zechstein Limestone and Lower Werra Anhydrite in order to better understand the sequence‐stratigraphic evolution of this sub‐basin, which contains economically important potassium salts. Four different paleogeographic depositional areas were recognized based on the regional distribution of facies. Siliciclastic‐carbonate, carbonate, carbonate‐evaporite and evaporite shallowing‐upward successions are developed. These allow the establishment of parasequences and sequences, as well as correlation throughout the Hessian Basin and into the Southern Zechstein Basin. Two depositional sequences are distinguished, Zechstein sequence 1 and Zechstein sequence 2. The former comprises the succession from the Variscan basement up to the lowermost part of the Werra Anhydrite, including the Kupferschiefer as part of the transgressive systems tract. The highstand systems tract is defined by the Zechstein Limestone, in which two parasequences are developed. In large parts of the Hessian Basin, Zechstein sequence 1 is capped by a karstic, subaerial exposure surface, interpreted as recording a type‐1 sequence boundary that formed during a distinct brine level fall. Low‐lying central areas (Central Hessian Sub‐basin, Werra Sub‐basin), however, were not exposed and show a correlative conformity. Topography was minimal at the end of sequence 1. Widely developed perilittoral, sabkha and salina shallowing‐upward successions indicate a renewed rise of brine level (interpreted as a transgressive systems tract), because of inflow of preconcentrated brines from the Southern Zechstein Basin to the north. This marks the initiation of Zechstein sequence 2, which comprises most of the Lower Werra Anhydrite. In the Central Hessian Sub‐basin, situated proximal to the brine inflow and on the ridges within the Hessian Basin, physico‐chemical conditions were well suited for sulphate precipitation to form a thick cyclic succession. It consists of four parasequences that completely filled the increased accommodation space. In contrast, only minor sulphate accumulation occurred in the Werra Sub‐basin, situated further southwards and distal to the inflow. As a result of substantially different sulphate precipitation rates during increased accommodation, water depth in the region became more variable. The Werra Sub‐basin, characterized by very low sedimentation rates, became increasingly deeper through time, trapping dense halite brines and precipitating rock salt deposits (Werra Halite). This ‘self‐organization’ model for an evaporitic basin, in which depositional relief evolves with sedimentation and relief is filled by evaporite thereafter, contradicts earlier interpretations, that call upon the existence of a tectonic depression in the Werra area, which controlled sedimentation from the beginning of the Zechstein.

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“…These ‘classic’ Zechstein cycles can be further subdivided hierarchically (Tucker, 1991; Strohmenger et al. , 1996a,b; Wagner & Peryt, 1997; Leyrer et al. , 1999).…”

Section: Geological Settingmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

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Sequence stratigraphy of a carbonate‐evaporite succession (Zechstein 1, Hessian Basin, Germany)

Becker

Bechstädt

2006

Sedimentology

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“…These fundamental elements are characterized by reef-builder species or sediments which posses specific fabrics or textures. Focus at such a fine scale offers an alternative to all carbonate forward models which work at the basin, platform or ramp scale (Aurell et al, 1998;Leyrer et al, 1999;Warrlich et al, 2002;Burgess & Wright, 2003), and to those who use geostatistical rules to work on the individual rock types (Doligez et al, 1999). This fine decimetre-scale may also offer further analytical perspectives: for instance, petrophysical properties such as porosity and permeability could be attributed to each facies in order to simulate, in close detail and in three dimensions, the interaction of fluids with carbonate rocks involved in diagenetic processes (Whitaker et al, 1999) such as early cementation, which is a fundamental process in the deposition of the Devonian reefs in the Canning Basin.…”

Section: Discussionmentioning

confidence: 99%

Fine‐Scale Forward Modelling of a Devonian Patch Reef, Canning Basin, Western Australia

Hasler

Adams

Woods

et al. 2008

Analogue and Numerical Modelling of Sedimentary Systems: From Understanding to Prediction

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Although factors that control the distribution of carbonate sediments are relatively well understood, their interaction in producing known geometries remains poorly known. A fine-scale forward model was developed to analyse the controls on decimetre-scale heterogeneity and carbonate facies distribution within larger-scale sediment bodies. The model was tested on a Frasnian (Late Devonian) patch reef, part of the so-called Glenister Knolls reef complex in the Canning Basin, Western Australia. The evolution of Glenister Knolls was digitally reconstructed using digital surveying technologies that resulted in a high-resolution dataset containing geological information from centimetrescale to outcrop dimensions. The three-dimensional digital outcrop model of Glenister Knolls was used to evaluate predictions from the fine-scale forward modelling results.The fine-scale forward model is based on a stochastic cellular automaton that simulates the spatial distribution of carbonate facies through time. The modelled carbonate facies is based on two main factors, stromatoporoid growth and sediment transport, and it successfully predicts the distribution of the basic elements -reef fabric and sediment -that compose the patch reef. The fine-scale forward model also successfully reproduces all major depositional relationships observed in the field such as backstepping, downlapping and interfingering contacts. The external structure of the reef is very sensitive to subsidence and production rates, since these directly influence accommodation space so constraining the vertical growth of the patch reef. However, the internal structure predicted by this model does not seem to be affected by one specific parameter, and displays the same sensitivity to other parameters, such as current intensity and wave amplitude.

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“…Such salina cycles are known from numerous epochs in the geological past, e.g., the Permian Zechstein Basin, where several cycles exist. Although varying in thickness and in completeness, they may be used for basinwide (sequential) stratigraphic correlation (Leyer et al, 1999). The thickness of gypsum seams, the supratidal increments, increases vertically upward in the lithofacies V and centimeterthick LLH stromatolites tend to evolve into giant SH stromatolites in the Middle Al Nakhsh Member.…”

Section: The Middle Al Nakhsh Member-lithofacies Association Vmentioning

confidence: 99%

Sedimentary facies, mineralogy, and geochemistry of the sulphate-bearing Miocene Dam Formation in Qatar

Dill

Botz

Berner

et al. 2005

Sedimentary Geology

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High-Resolution Forward Stratigraphic Modeling of Ca2-Carbonate Platforms and Off-Platform Highs (Upper Permian, Northern Germany)

Cited by 9 publications

References 8 publications

Sequence stratigraphy of a carbonate‐evaporite succession (Zechstein 1, Hessian Basin, Germany)

Sequence stratigraphy of a carbonate‐evaporite succession (Zechstein 1, Hessian Basin, Germany)

Fine‐Scale Forward Modelling of a Devonian Patch Reef, Canning Basin, Western Australia

Sedimentary facies, mineralogy, and geochemistry of the sulphate-bearing Miocene Dam Formation in Qatar

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