Nature, origin and classification of peritidal tepee structures and related breccias

Assereto, R.; Kendall, Christopher G. St. C.

doi:10.1111/j.1365-3091.1977.tb00254.x

Cited by 162 publications

(109 citation statements)

References 57 publications

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“…Cementation is extensive and includes calcite rim cements and coatings on breccia clasts, calcite spar in vugs, and silica replacement. Vadose pendant cements and large pisoids commonly associated with tepee structures in other locations are not observed in the Khufai Formation (Assereto and Kendall, 1977;Kendall and Warren, 1987). Thin beds of red siltstone are locally preserved on the upper surface of tepee breccia deposits.…”

Section: Tepee Brecciamentioning

confidence: 83%

Facies, stratigraphy, and evolution of a middle Ediacaran carbonate ramp: Khufai Formation, Sultanate of Oman

Osburn¹,

Grotzinger²,

Bergmann³

2014

Bulletin

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The Khufai Formation is the oldest carbonate platform of the Cryogenian to lowermost Cambrian Huqf Supergroup. A stratigraphic characterization of this unit includes detailed facies descriptions, a sequence-stratigraphic interpretation, and evaluation of lateral heterogeneity and overall ramp evolution. The Khufai Formation comprises one and one-half depositional sequences with a maximum flooding interval near the base of the formation and a sequence boundary within the upper peritidal facies. Most of the deposition occurred during highstand progradation of a carbonate ramp. Facies tracts include outer-ramp and midramp mudstones and wackestones, ramp-crest grainstone shoal deposits, and extensive inner-ramp, microbially dominated peritidal deposits. Outcrops in the Oman Mountains are deepwater deposits, including turbiditic grainstone and wackestone interbedded with siliciclastic-rich siltstone and crinkly laminite. Facies patterns and parasequence composition are variable both laterally across the outcrop area and vertically through time because of a combination of ramp morphology, siliciclastic supply, and possible syndepositional faulting. The lithostratigraphic boundary between the Khufai Formation and the overlying Shuram Formation is gradational and represents significant flooding of the carbonate platform. The stratigraphic characterization presented here along with the identification of key facies and diagenetic features will help further future exploration and production of hydrocarbons from the Khufai Formation.

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Section: Tepee Brecciamentioning

confidence: 83%

Facies, stratigraphy, and evolution of a middle Ediacaran carbonate ramp: Khufai Formation, Sultanate of Oman

Osburn¹,

Grotzinger²,

Bergmann³

2014

Bulletin

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“…In the Persian Gulf, both in the intertidal and subtidal zone, the rapidly forming rock is horizontal and thin. Although this rock cracks and buckles extensively, it tends to form polygonal shapes separated by expansion ridges (Shinn, 1969;Evamy, 1973;Assereto & Kendall, 1977).…”

Section: Fishhook Spits and 'J' Shaped Structuresmentioning

confidence: 99%

The Mystique of Beachrock

Shinn¹

2009

Perspectives in Carbonate Geology

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Parallel rows of intertidal beachrock composed of large (up to 4 m), oblong, pillowshape blocks submerged by rising Holocene sea level occur throughout the Caribbean. Such blocks have recently been discovered in 90 m of water off southwest Florida. The best known example is in 5-7 m of water off the northwest side of Bimini, Bahamas, where the feature is known as the Bimini Road. 'New-Age' alternative thinkers assert that the arrangement of the Bimini stones, and similar stones off Andros Island in the Bahamas, is actually man-made. The theory holds that ancient humans, principally citizens of the mythical city of Atlantis rearranged blocks of beachrock to form a harbour. This paper demonstrates that the stones and their arrangement are natural and suggests that some villages protected by ancient harbours in the Mediterranean may in fact have been developed on naturally occurring beachrock.

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“…This typical facies of the Calcare Rosso, up to about 60 m thick, has been the subject of detailed studies Assereto & Kendall, 1977;Mutti, 1994;Vola & Jadoul, 2014). It bears the spectacular evidence of alternating carbonate deposition and subaerial exposures (Fig.…”

Section: Type 3) Peritidal-supratidal Carbonates Affected By Multiplementioning

confidence: 99%

“…The top of the Esino Limestone platform records spectacular evidence of ancient polyphase karst related to subaerial exposure of the carbonate platform, (Assereto & Kendall, 1977;Mutti, 1994;Vola & Jadoul, 2014). These papers focus on carbonate deposits affected by multiple karst and diagenetic episodes (typical facies of the Calcare Rosso).…”

Section: Calcare Rosso: Facies Type Distribution and Controlling Promentioning

confidence: 99%

Does compaction-induced subsidence control accommodation space at the top of prograding carbonate platforms? Constraints from the numerical modelling of the Triassic Esino Limestone (Southern Alps, Italy)

Berra

Carminati

Jadoul

et al. 2016

Marine and Petroleum Geology

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Highlights• Various regressive facies are described on a high-relief carbonate platform.• Facies distribution of regressive facies documents accommodation changes.• Accommodation increases toward the prograding edge of the carbonate platform.• Numerical modelling tests compaction of basinal sediments to create accommodation.• Compaction of basinal sediments may control accommodation changes on the platform top. KeywordsCarbonate platform, Triassic, paleokarst, terra rossa soil, accommodation, differential compaction, numerical modelling 2 AbstractThe demise of the high-relief, steep-slope, prograding Ladinian-Early Carnian carbonate platforms of the Esino Limestone (Central Southern Alps of Italy) is marked by subaerial exposure of the platform top associated with different erosional (mainly karst-related), depositional and diagenetic processes (Calcare Rosso). The exposure-related deposits consist of three major facies associations: 1) residual soils with thin lenses of conglomerates with black pebbles, and, locally, weathered vulcanites; 2) chaotic breccia lenses irregularly distributed in the uppermost part of the Esino Limestone carbonate platform, interpreted as collapse breccias in karstic setting: 3) inter-supratidal carbonate cycles with dissolution and development of paleosols and tepee structures.Facies distribution follows the sub-environments of the underlying Esino Limestone. Facies 1 and 2 typically characterize the core of the platform, covering the underlying inner platform facies. Facies 3 instead develops toward the edge of the platform, above reef-upper slope facies of the prograding facies of the Esino Limestone. The thickness of facies 3 decreases toward the core of the platform.Facies distribution reflects differences in the accommodation space and sedimentary processes from the rim (highest accommodation, favouring the deposition of peritidal-supratidal carbonates) to the core (reduced accommodation, causing pedogenesis and karstification) of the carbonate system.The observed thickness changes may be controlled by different factors: 1) syndepositional tectonics, 2) subsidence induced by magmatic activity or 3) differential subsidence controlled by the stratigraphic architecture of the Esino Limestone platform and adjoining basins. As evidence of tectonics was not observed and the presence of volcanic bodies is only documented tens of km away from the study area, the scenario involving the creation of accommodation space by compaction of the basinal sediments (resedimented, fine-grained calciturbidites) during the progradation of the carbonate platform is here investigated. Numerical modelling was performed to verify the compatibility of compaction-induced subsidence with the observed depositional architecture. The models were built to simulate the architectural evolution of the platform by progressively adding layers from deepest to shallowest, while compacting the underlying sediments, in order to evaluate compaction-induced subsidence (and accommodation space for the Calcare Rosso) after...

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Nature, origin and classification of peritidal tepee structures and related breccias

Cited by 162 publications

References 57 publications

Facies, stratigraphy, and evolution of a middle Ediacaran carbonate ramp: Khufai Formation, Sultanate of Oman

Facies, stratigraphy, and evolution of a middle Ediacaran carbonate ramp: Khufai Formation, Sultanate of Oman

The Mystique of Beachrock

Does compaction-induced subsidence control accommodation space at the top of prograding carbonate platforms? Constraints from the numerical modelling of the Triassic Esino Limestone (Southern Alps, Italy)

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