Cenomanian-Early Turonian carbonate platform of northern Oman: stratigraphy and palaeo-environments

Philip, Jean; Borgomano, Jean; Al-Maskiry, S.

doi:10.1016/0031-0182(95)00061-5

Cited by 82 publications

(82 citation statements)

References 8 publications

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“…The thickly bedded Orbitolina limestones in the lower part of the formation (Members f-g) at Wadi Mi'aidin ( Fig. 3) were interpreted by Philip et al (1995) as recording a marine transgression across the outer part of this shelf, with Thalassinoides burrows attesting to a shallow water environment. Member g has been interpreted as a late Albian Maximum Flooding Surface, separated from Member g by 2 hardgrounds forming a sequence boundary (van Buchem et al 2002b).…”

Section: Wasia Groupmentioning

confidence: 99%

“…The overlying rudist to peloidal limestones (Member e) were laid down at Wadi Mi'aidin in a high-energy platform margin shoal environment mid ramp setting ranging from just below to well within fair-weather wave base (van Buchem et al 2002b), and situated close to a radiolitid rudist bioherm to the east (Simmons and Hart 1987). A number of thick, shallowing upward sequences within this part of the formation, record the basinward progradation and significant vertical aggradation of this part of the formation (Philip et al 1995), which is bound at the top by an erosional sequence boundary near to the top of Member e (van Buchem et al 2002b). The remainder of the Natih Formation (Members d-a) is characterised by back-stepping and corresponding deepening of the carbonate platform, recorded by four shallowing upward, fourth order parasequences (Philip et al 1995).…”

Section: Wasia Groupmentioning

confidence: 99%

“…A number of thick, shallowing upward sequences within this part of the formation, record the basinward progradation and significant vertical aggradation of this part of the formation (Philip et al 1995), which is bound at the top by an erosional sequence boundary near to the top of Member e (van Buchem et al 2002b). The remainder of the Natih Formation (Members d-a) is characterised by back-stepping and corresponding deepening of the carbonate platform, recorded by four shallowing upward, fourth order parasequences (Philip et al 1995). Lateral facies variations towards the top of the formation (Members b-a), from carbonate platform deposits at Wadi Mi'aidin and eastern Jebel Akhdar, to the black oyster-rich basinal facies limestones (Fitri Formation of Philip et al 1995) between Wadi Nakhr and Wadi Tanuf, characterise this deepening profile, with the eastward onlap of more basinal facies and differential subsidence, followed by uplift, interpreted as tectonically controlled (van Buchem et al 2002b).…”

Section: Wasia Groupmentioning

confidence: 99%

“…The remainder of the Natih Formation (Members d-a) is characterised by back-stepping and corresponding deepening of the carbonate platform, recorded by four shallowing upward, fourth order parasequences (Philip et al 1995). Lateral facies variations towards the top of the formation (Members b-a), from carbonate platform deposits at Wadi Mi'aidin and eastern Jebel Akhdar, to the black oyster-rich basinal facies limestones (Fitri Formation of Philip et al 1995) between Wadi Nakhr and Wadi Tanuf, characterise this deepening profile, with the eastward onlap of more basinal facies and differential subsidence, followed by uplift, interpreted as tectonically controlled (van Buchem et al 2002b). This possibly denotes the initial phase of tectonic loading during the formation of the North Oman foredeep during the Turonian.…”

Section: Wasia Groupmentioning

confidence: 99%

“…This possibly denotes the initial phase of tectonic loading during the formation of the North Oman foredeep during the Turonian. However, Philip et al (1995) suggested an alternative eustatic origin, corresponding to a Late Cenomanian sea-level rise, for this facies variation.…”

Section: Wasia Groupmentioning

confidence: 99%

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The Jurassic–Cretaceous depositional and tectonic evolution of the southernwestern margin of the Neotethys Ocean, Northern Oman and United Arab Emirates

Phillips

Waters

Ellison

2012

Lithosphere Dynamics and Sedimentary Basins: The Arabian Plate and Analogues

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The concept that the autochthonous, parautochthonous and allochthonous Permian-Cretaceous sequences in the United Arab Emirates (UAE) and Oman record the transition from platform, slope to basin sedimentation within the southern part of Neotethys has been fundamental to the interpretation of the geological history of the region. The results of a major geological mapping programme of the UAE, carried out by the British Geological Survey for the Federal Government of the UAE, coupled with the detailed examination of key sections within northern Oman has led to a re-evaluation of the geological evolution of this region. This detailed study has led to a greater appreciation of the sedimentology and depositional setting of the sediments laid down along the northeastern Arabian continental margin during the Jurassic to Cretaceous, allowing a more refined model of Neotethys Ocean basin evolution to be established. The model charts the progressive breakup of the Arabian continental margin and closure of Neotethys during the mid to late Cretaceous and is divided into three main stages: Stage 1 -Initial rifting and formation of the Neotethys Ocean, followed by a prolonged period of stable, passive margin sedimentation which extended from the Permian to Late Jurassic times; Stage 2 -Uplift and erosion of the shelf margin during the Late Jurassic to Early Cretaceous, coincident with increased carbonate-clastic sedimentation in the outer ramp, distal slope and basinal areas; Stage 3 -Increased instability during the Late Cretaceous leading to the breakup of the platform margin and foreland basin sedimentation accompanying the obduction of the Oman-UAE ophiolite. Data obtained for the upper part of the platform and platform margin to slope successions has revealed that the topography of the "shelf"-slope-basinal margin was more subdued than previously thought, with this more gentle ramp margin morphology persisting until early to midCretaceous times when the platform margin started to become unstable during ophiolite obduction. The thrust-repeated allochthonous sedimentary rocks of the Hamrat Duru Group were deposited on the outer platform margin/lower slope rise to basinal plain of this basin margin and includes the dismembered remains of two turbidite fan systems which fed carbonate-rich detritus into deeper parts of the ocean. A re-evaluation of the chert-rich sequences, previously equated with deposition on the abyssal plain of Neotethys, has led to the conclusion that they may record sedimentation at a much shallower level within a starved ocean basin, possibly in a mid-ramp (above storm wave base) to outer ramp setting. A marked change in basin dynamics occurred during the mid-Cretaceous leading to the development of a shallow ramp basin margin in Oman with terrestrial to shallow marine sedimentary rocks interdigitating with red siliceous mudstones. By contrast, the contemporaneous succession in the Dibba Zone of the UAE indicates considerable instability on a steep shelf break. This instability is recorded by t...

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Section: Wasia Groupmentioning

confidence: 99%

Section: Wasia Groupmentioning

confidence: 99%

Section: Wasia Groupmentioning

confidence: 99%

Section: Wasia Groupmentioning

confidence: 99%

Section: Wasia Groupmentioning

confidence: 99%

See 3 more Smart Citations

The Jurassic–Cretaceous depositional and tectonic evolution of the southernwestern margin of the Neotethys Ocean, Northern Oman and United Arab Emirates

Phillips

Waters

Ellison

2012

Lithosphere Dynamics and Sedimentary Basins: The Arabian Plate and Analogues

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Chemostratigraphy of the Upper Albian to mid‐Turonian Natih Formation (Oman) – how authigenic carbonate changes a global pattern

Wohlwend

Hart

Weissert

2016

The Depositional Record

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The Oman Mountains preserve a Cretaceous continental margin transect with the proximal Arabian carbonate shelf and the adjacent deep Hawasina Basin. Today, the sediments from the Arabian Platform outcrop in the Oman Mountains (Jabal Akdhar and Saih Hatat) and in the Adam Foothills. The western part of the Adam Foothills provides insight into the evolution of a Late Cretaceous intra-platform basin with organic-rich sediments in the central part of this basin. The aims of this study are (a) to establish a biostratigraphy and chemostratigraphy of the Natih Formation and (b) to reconstruct depositional conditions of organic-rich sediments in an intra-platform basin during Cenomanian-Turonian times. The hypothesis that local black shale formation is an expression of global perturbations of the global carbon cycle will be tested. Reconstruction of the depositional history of the Arabian Platform and its intra-platform basin within a global palaeoclimatic framework requires an accurate time frame. The Upper Albian to mid-Turonian biostratigraphy of the Natih Formation has resulted in controversial age models that will be integrated into a solid chemostratigraphic framework with additional biostratigraphic data. A major positive d 13 C excursion (+4Á6&) has been identified as of Middle Cenomanian age, which is confirmed by an ammonite datum. A second positive d 13 C excursion (+4Á5&) following a major negative excursion (À1Á0&) confirms the existence of the Cenomanian/Turonian Boundary Event. The accurate chemostratigraphy and biostratigraphy confirms that major source rocks in the Mishrif-Natih Basin precede OAE2. Low d13 C values measured in the sediments of the Natih B member are considered a consequence of diagenetic alteration. Elevated organic carbon contents and argillaceous sediments alternating with limestones resulted in diagenetic conditions favouring formation of authigenic calcite depleted in C-13.

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Evolutionary trend of Cenomanian alveolinids from Zagros Basin,SWof Iran

et al. 2021

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The alveolinids were once highly widespread in the Cenomanian of the Tethys Basin. Even though evolutionary studies have, thus far, been conducted using material from many countries e.g. Spain, Oman, and the UAE, the Zagros region in SW Iran has not been studied yet. Two sections of the Sarvak Formation in the Pyun and Kuh‐e‐Zana areas were investigated. Five type levels can be identified in the Pyun section. The evolutionary trend begins with praealveolinids followed by ovalveolinids in the Early Cenomanian. Cisalveolinids firstly appear in the Late Cenomanian strata and then Multispirina is derived. Then Simplalveolina simplex appears, which is derived from Multispirina iranensis. At the Kuh‐e Zana section, the evolutionary trend was observed in three levels. There is no ideal evolutionary trend because Multispirina and Simplalveolina are absent in this section. The identified trends are similar to those of the Iberian Ranges in Spain.

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Cenomanian-Early Turonian carbonate platform of northern Oman: stratigraphy and palaeo-environments

Cited by 82 publications

References 8 publications

The Jurassic–Cretaceous depositional and tectonic evolution of the southernwestern margin of the Neotethys Ocean, Northern Oman and United Arab Emirates

The Jurassic–Cretaceous depositional and tectonic evolution of the southernwestern margin of the Neotethys Ocean, Northern Oman and United Arab Emirates

Chemostratigraphy of the Upper Albian to mid‐Turonian Natih Formation (Oman) – how authigenic carbonate changes a global pattern

Evolutionary trend of Cenomanian alveolinids from Zagros Basin,SWof Iran

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