Lower permian palaeoaplysinid bioherms and associated sediments from central Spitsbergen

Skaug, M.; Dons, Carl E.; Lauritzen, Ørnulf; Worsley, David

doi:10.3402/polar.v1982i2.7004

Cited by 14 publications

(16 citation statements)

References 6 publications

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“…Accordingly, the Paleoaplysina facies seem to occupy a range of environmental settings limited upwards by the storm wave base. They are interpreted as mound accumulations, in accordance with Skaug et al (1982), forming lenticular and tabular bioherms that are believed to have formed in deeper open marine environments based on the presence of muddy bryozoan-crinoid wackestones at the base of each bioherm cycle.…”

Section: Figure 14 Thin-sections Of Fusulinid-crinoid Packstone (A)mentioning

confidence: 81%

“…5C, D). The TST includes three, laterally widespread, Paleoaplysina bioherms (Type-8 to Type-10 cycles) (Skaug et al, 1982). The cycle pattern gradually back-stepped across the High until Type-1 cycles dominated across the entire Nordfjorden High in Mid and Late Asselian times.…”

Section: Cyclicity and Periodicitymentioning

confidence: 99%

“…The cycle resembles the Paleoaplysina bioherm cycles recognised by Skaug et al (1982). (Nilsson, 1993;Schmitz & Davydov, 2012).…”

Section: Occurrencementioning

confidence: 99%

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Depositional evolution of the Upper Carboniferous – Lower Permian Wordiekammen carbonate platform, Nordfjorden High, central Spitsbergen, Arctic Norway

Ahlborn¹,

Stemmerik²

2015

NJG

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This paper presents the first comprehensive study of the Wordiekammen carbonate platform on the Nordfjorden High, Central Spitsbergen. The Wordiekammen succession is divided into four depositional sequences bounded by subaerial exposure surfaces and consists of 12-84 m-thick wedgeshaped sequences being thickest in the distal area and thinner on the crest of the High. The uppermost Finlayfjellet Beds (Tyrrellfjellet sequence 2) represents in contrast a uniform sequence. The Wordiekammen Formation is composed of 11 depositional carbonate facies and three overprint facies which are grouped into 10 facies associations. Each association represents a predictable pattern of facies, 0.5-22 m thick, which is repeated many times producing a distinct cyclicity in the succession. The Wordiekammen Formation is composed of 50 depositional cycles, 21 cycles in the Kapitol Member and 29 cycles in the Tyrrellfjellet Member. Analysis of the well-dated Tyrrellfjellet Member indicates that the succession was controlled by mixed 100 kyr and 400 kyr cyclicity signals which are believed to be a reflection of eustatic sea-level fluctuation and tectonic instability. Allocyclic control on the deposition dominated the majority of the Wordiekammen succession, and an abrupt change in depositional style in the uppermost Finlayfjellet Beds is believed to reflect the break-down of the Gondwanaland ice sheets and the end of glacio-eustaic control. Four key lithological intervals and unconformities have been correlated across the Billefjorden Fault Zone to the time-equivalent succession in Bünsow Land. Based on the correlation, it is considered that the distal part of the Nordfjorden High towards the west and the carbonate platform on Bünsow Land reflected a similar geological setting while the up-dip and crestal part of the Nordfjorden High was a positive feature that divided the two carbonate platforms during sea-level lows. Finally, it is believed that the Nordfjorden High remained a homoclinal carbonate ramp up to at least Late Asselian times.

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Section: Figure 14 Thin-sections Of Fusulinid-crinoid Packstone (A)mentioning

confidence: 81%

Section: Cyclicity and Periodicitymentioning

confidence: 99%

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Depositional evolution of the Upper Carboniferous – Lower Permian Wordiekammen carbonate platform, Nordfjorden High, central Spitsbergen, Arctic Norway

Ahlborn¹,

Stemmerik²

2015

NJG

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“…The latter can probably be attributed to the palaeogeographic position of the section. This assumption is conWrmed by Skaug et al (1982), Stemmerik et al (1994) and Pickard et al (1996), who noticed that Palaeoaplysina bioherms from the overlying Tyrellfjellet Member accumulated along the margins of the fault blocks bordering the Billefjorden Trough (Nordfjorden Block, Ny Friesland Block). The enormous buildups, reaching heights of up to 15 m created eVective barrier systems, which protected lagoonal areas locally marked by restricted, quiet water and possibly temporarily hypersaline, anoxic conditions from more open-marine conditions.…”

Section: Mft 15: Palaeoaplysina Mound Faciesmentioning

confidence: 88%

“…These buildups, emerging up to several meters from the sea Xoor, probably formed conspicuous, wave-resistant barriers during low sea-level stands when the structures ascended above the FWWB (Skaug et al 1982).…”

Section: Mid-platformmentioning

confidence: 99%

Facies arrangement and cyclostratigraphic architecture of a shallow-marine, warm-water carbonate platform: the Late Carboniferous Ny Friesland Platform in eastern Spitsbergen (Pyefjellet Beds, Wordiekammen Formation, Gipsdalen Group)

Blomeier

Scheibner

Forke

2008

Facies

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During the Late Carboniferous, a spacious warm-water carbonate platform developed across the eastern part of the present Arctic archipelago of Svalbard. The platform initiated in the Moscovian on an uplifted fault block (Ny Friesland High) and progradated during the Late Moscovian to Early Kasimovian into the adjacent Campbellryggen Basin (central Spitsbergen). The fossiliferous platform strata are characterized by a pronounced cyclicity formed by stacked parasequences, which consist of deWned, subtidal to supratidal facies-set successions reXecting a general shallowing of the depositional area. Up to 17 of these shallowing-upward cycles, bounded by distinct discontinuity (marine Xooding) surfaces due to the recurrent emersion and subsequent Xooding of the platform surface, have been recognized within the platform strata. The stacked cycles are the result of global, glacio-eustatic, highfrequent and high-amplitudinal sea-level Xuctuations with eccentricity periodicities caused by ice volume changes during the Gondwana Land glaciation. Based on systematic changes of the cycles (thickness and internal facies composition), the upper part of the platform strata is interpreted as a progradational parasequence set of a late highstand system tract.

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Palaeoenvironmental implications of Palaeomicrocodium in Upper Devonian microbial mounds of the Chernyshev Swell, Timan-northern Ural Region

Антошкина

2006

Facies

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Nine major microfacies and eight transgressiveregressive cycles have been recognized in the middle Frasnian-Famennian microbial mound of the Shar'yu River section in the Chernyshev Swell, Timan-northern Ural region. Rocks including Palaeomicrocodium at the top of each cycle show signs of brecciation, freshwater leaching, and vadose cementation. Palaeomicrocodium, an enigmatic structure, being close in nature to Microcodium, is useful as a palaeoenvironmental indicator and can also be used in regional correlations. Seven levels of subaerial expose surfaces with Palaeomicrocodium correspond to seven breaks in growth of the microbial mound in the Upper Devonian reef-like formation. The high-amplitude sea-level changes recognized are in good correlation with those in the Moscow Syneclise and are also fixed on the global eustatic curve.

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Lower permian palaeoaplysinid bioherms and associated sediments from central Spitsbergen

Cited by 14 publications

References 6 publications

Depositional evolution of the Upper Carboniferous – Lower Permian Wordiekammen carbonate platform, Nordfjorden High, central Spitsbergen, Arctic Norway

Depositional evolution of the Upper Carboniferous – Lower Permian Wordiekammen carbonate platform, Nordfjorden High, central Spitsbergen, Arctic Norway

Facies arrangement and cyclostratigraphic architecture of a shallow-marine, warm-water carbonate platform: the Late Carboniferous Ny Friesland Platform in eastern Spitsbergen (Pyefjellet Beds, Wordiekammen Formation, Gipsdalen Group)

Palaeoenvironmental implications of Palaeomicrocodium in Upper Devonian microbial mounds of the Chernyshev Swell, Timan-northern Ural Region

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