Middle Devonian (Givetian) coral-stromatoporoid reefs in West Sahara (Morocco)

Wendt, Jobst; Kaufmann, Bernd

doi:10.1016/j.jafrearsci.2005.11.025

Cited by 26 publications

(23 citation statements)

References 11 publications

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“…As noted by Coen-Aubert (2013), the Givetian succession of the Zemmour has been compared by Dumestre & Illing (1967) and Wendt & Kaufmann (2006) with that situated about 100 km to the north, close to Smara in the northern part of Western Sahara. The correlations proposed by these authors are based on several levels of coralliferous limestone as well as on the key bed of oolitic limestone occurring at the top of unit 94 (Fig.…”

Section: Diagnosismentioning

confidence: 92%

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Givetian rugose corals from the Zemmour in Mauritania

Coen-Aubert¹

2017

Geol. Belg.

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Section: Diagnosismentioning

confidence: 92%

“…3) of Sougy (1964). According to Wendt & Kaufmann (2006), the lower and upper boundaries of the Givetian are also not clearly defined in Western Sahara.…”

Section: Diagnosismentioning

confidence: 99%

Givetian rugose corals from the Zemmour in Mauritania

Coen-Aubert¹

2017

Geol. Belg.

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“…Le Maître 1947;Gendrot 1973;Brachert et al 1992;Wendt et al 1997;Wendt and Kaufmann 2006). On the other hand, relatively few data are available on Carboniferous buildups.…”

Section: Introductionmentioning

confidence: 99%

Microbial‐sponge and microbial‐metazoan buildups in the Late Viséan basin‐fill sequence of the Jerada Massif (Carboniferous, NE Morocco)

Aretz¹,

Herbig²

2008

Geological Journal

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Three distinctive Late Viséan buildup intervals are differentiated on the southern limb of the Jerada Synclinorium. The oldest buildups (BI-1) are preserved as olistoliths in the Oued El Koriche Formation (Fm). They were located on a southern platform prior to reworking. The younger Koudiat Es-Senn Fm contains two autochthonous buildup intervals (BI-2 to BI-3). BI-1 and BI-2 buildups are large microbial-sponge buildups, BI-3 are small microbial-metazoan buildups in the capping bed succession above BI-2. All buildups are characterized by a rigid non-skeletal microbial framework. Growth of the largest BI-2 buildups started in aphotic to dysphotic conditions in a water depth significantly less than 100 m and continued into agitated shallow-water. Smaller BI-2 buildups and all BI-3 buildups are encased in grainy shallow-water carbonates. In contrast to a mostly homogeneous microbial-sponge facies below, the uppermost part of the BI-2 buildups and all BI-3 buildups consist of heterogeneous boundstones with differing frame builders. BI-1 to BI-3 buildups represent different stages within a Viséan basin-fill sequence. Carbonate sedimentation ended with the deposition of peritidal oncolitic floatstones below the unconformably overlying Namurian shales. The Jerada buildups have many features commonly associated with 'reefs'. Comparison with contemporaneous buildups shows considerable similarities to buildups from Algeria, the Eastern Moroccan Anti-Atlas and the British Isles.

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“…Due to a lack of current vegetation cover, the reef structure in outcrop is revealed in three dimensions, and it is not tectonically deformed. Based on the Wrst investigations in the late 1960s by Dumestre and Illing (1967) and recent studies by Wendt and Kaufmann (2006), six reef cycles can be distinguished in the Givetian of the Uein Terguet area. The reef basement is characterized by dark grey, thick-bedded oolites overlaying siltstones and sandstones.…”

Section: Geological Settingmentioning

confidence: 99%

The role of bryozoans in fossil reefs—an example from the Middle Devonian of the Western Sahara

Ernst

Königshof

2008

Facies

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Stenolaemate bryozoans with their stable calcitic skeletons play a signiWcant role in reef building. In the Middle Devonian Sabkhat Lafayrina reef complex (Western Sahara), bryozoans are abundant and diverse. Although they do not form part of the principal framework of reefs, bryozoans are involved signiWcantly in reef growth, especially in the initial stage. In this way, bryozoans are important with respect to initiating reef growth. They contribute greatly to sediment stabilization, making it possible for principal reef builders to grow on hardened and stabilized substrates, and also play sediment-baZing and sedimentWlling roles. The aim of this study is to document the diversity of bryozoans in a Middle Devonian reef complex and to estimate their potential for initiation and contribution to reef structures.

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Middle Devonian (Givetian) coral-stromatoporoid reefs in West Sahara (Morocco)

Cited by 26 publications

References 11 publications

Givetian rugose corals from the Zemmour in Mauritania

Givetian rugose corals from the Zemmour in Mauritania

Microbial‐sponge and microbial‐metazoan buildups in the Late Viséan basin‐fill sequence of the Jerada Massif (Carboniferous, NE Morocco)

The role of bryozoans in fossil reefs—an example from the Middle Devonian of the Western Sahara

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