The late Albian–Turonian carbonate platform succession of west-central Jordan: stratigraphy and crises

Schulze, Frauke; Marzouk, Akmal M.; Bassiouni, Mohamed; Kuss, Jochen

doi:10.1016/j.cretres.2004.06.008

Cited by 57 publications

(31 citation statements)

References 31 publications

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“…A key feature of the Whadi El Ghaib section is the presence of oyster-rich limestone beds during the late Cenomanian, as also observed in Morocco (Andreu 1989), in Sinai (Bauer et al 2003) and Jordan (Schulze et al 2003(Schulze et al , 2004(Schulze et al , 2005. During the Cretaceous, oysters typically inhabited shallow-water environments of the Tethys near North Africa where they first appeared during the late Aptian (Algeria and Morocco) and formed specific facies since the Cenomanian (Dhondt et al 1999).…”

Section: Micro-and Macrofossils As Environmental Proxiesmentioning

confidence: 99%

Cenomanian–Turonian transition in a shallow water sequence of the Sinai, Egypt

Gertsch

Keller

Adatte

et al. 2008

Int J Earth Sci (Geol Rundsch)

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Environmental and depositional changes across the Late Cenomanian oceanic anoxic event (OAE2) in the Sinai, Egypt, are examined based on biostratigraphy, mineralogy, d13 C values and phosphorus analyses. Comparison with the Pueblo, Colorado, stratotype section reveals the Whadi El Ghaib section as stratigraphically complete across the late Cenomanian-early Turonian. Foraminifera are dominated by high-stress planktic and benthic assemblages characterized by low diversity, lowoxygen and low-salinity tolerant species, which mark shallow-water oceanic dysoxic conditions during OAE2. Oyster biostromes suggest deposition occurred in less than 50 m depths in low-oxygen, brackish, and nutrient-rich waters. Their demise prior to the peak d 13 C excursion is likely due to a rising sea-level. Characteristic OAE2 anoxic conditions reached this coastal region only at the end of the d 13 C plateau in deeper waters near the end of the Cenomanian. Increased phosphorus accumulations before and after the d 13 C excursion suggest higher oxic conditions and increased detrital input. Bulk-rock and clay mineralogy indicate humid climate conditions, increased continental runoff and a rising sea up to the first d 13 C peak. Above this interval, a dryer and seasonally well-contrasted climate with intermittently dry conditions prevailed. These results reveal the globally synchronous d 13 C shift, but delayed effects of OAE2 dependent on water depth.

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Section: Micro-and Macrofossils As Environmental Proxiesmentioning

confidence: 99%

Cenomanian–Turonian transition in a shallow water sequence of the Sinai, Egypt

Gertsch

Keller

Adatte

et al. 2008

Int J Earth Sci (Geol Rundsch)

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“…Benthic foraminifers have been studied in thin-sections and in washed residue of marl and clay samples, and they are mainly classified after Hamaoui and Saint-Marc (1970), Saint-Marc (1974), Schröder and Neumann (1985), Weidich and Al-Harithi (1990), Koch (1968), andAl-Rifaiy et al (1993). Some larger foraminifers are biostratigraphically indicative and enable subdivision of the Cenomanian succession (compare 2004). Planktic foraminifers Fig.…”

Section: Biostratigraphymentioning

confidence: 98%

“…Therefore, Powell (1989) defined the "F/H/S undifferentiated" Formation. However, a subdivision of the five formations within the entire study area is possible, based on a new stratigraphic scheme (Schulze et al , 2004. These lateral variations result from a general shallowing towards the south and increasing terrigenous input within the proximal areas.…”

Section: Lithostratigraphymentioning

confidence: 99%

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Platform configuration, microfacies and cyclicities of the upper Albian to Turonian of west-central Jordan

Schulze

Kuss

Marzouk

2005

Facies

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We present a comprehensive facies scheme for west-central Jordan platform deposits of upper Albian to Turonian age, discuss Cenomanian and Turonian carbonate cycles, and reconstruct the paleogeographic evolution of the platform. Comparisons with adjacent shelf areas (Israel, Sinai) emphasize local characteristics as well as the regional platform development. Platform deposits are subdivided into fifteen microfacies types that define eight environments of deposition of three facies belts. Main facies differences between Cenomanian and Turonian platforms are: rudist-bearing packstones that characterise the higher-energy shallow subtidal (transition zone) during the Cenomanian, and fossiliferous (commonly with diverse foraminifer assemblages) wackestones and packstones of an open shallow subtidal environment. On Turonian platforms high-energy environments are predominantly characterised by oolithic or bioclastic grainstones and packstones, whereas peritidal facies are indicated by dolomitic wackestones with thin, wavy (cryptmicrobial) lamination. Rhythmic facies changes define peritidal or subtidal shallowing-up carbonate cycles in several Cenomanian and Turonian platform intervals. Cyclicities are also analysed on the base of accommodation plots (Fischer Plots). High-frequency accommodation changes within lower Cenomanian cyclic bedded limestones of the central and southern area exhibit two major 'cyclic sets' (set I and II) each containing regionally comparable peaks. Accommodation patterns within cyclic set II coincide with the sequence boundary zone of CeJo1. The lateral and vertical facies distributions on the inner shelf allow the reconstruction of paleogeographic conditions during five time intervals (Interval A to E). An increased subsidence is assumed for the central study area, locally (area of Wadi Al Karak) persisting from middle Cenomanian to middle Turonian times. In contrast, inversion and the development of a paleo-high have been postulated for an adjacent area (Wadi Mujib) during late Cenomanian to early Turonian times, while small-scale sub-basins with an occasionally dysoxic facies developed northwards and further south during this time interval. A connection between these structural elements in Jordan with basins and uplift areas in Egypt and Israel during equivalent time intervals is assumed. This emphasises the mostly concordant development of that Levant Platform segment.

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“…and Cytherura sp. Later, Schultze et al (2004) detailed the paleoecology and biostratigraphy of the Jordanian carbonate platform based on ostracodes and foraminifers, which improved the understanding of the shelf development during the late Albian-Turonian. More recently, Morsi & Wendler (2010) carried out a study on the Cenomanian-Turonian deposits of Jordan discussing not only biostratigraphical aspects, but also parameters influencing the ostracode distribution.…”

Section: Introductionmentioning

confidence: 99%