Dynamic response of the shallow marine benthic ecosystem to regional and pan-Tethyan environmental change at the Paleocene–Eocene boundary

Afzal, Jawad; Williams, Mark; Leng, Melanie J.; Aldridge, Richard J.

doi:10.1016/j.palaeo.2011.04.005

Cited by 35 publications

(50 citation statements)

References 61 publications

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“…This MFS is well known from the Bab Tar (source rock) unit of the Shuaiba Formation in the United Arab Emirates as a basinal, planktonic foraminifer and organic-rich facies (Bab Basin;Grotsch et al 1998). These characteristics are similar to the features of the Apt2 at the Kuh-e-Sefid.…”

Section: Discussionsupporting

confidence: 57%

“…The presence of skeletal grains of euryhaline biota such as green algae, miliolids and conical orbitolinids suggest restricted conditions with limited circulation (Mancinelli 2006, Afzal et al 2011. Considering the observed vertical evolution within this interval, this association of facies has been interpreted as lagoonal deposits (e.g.…”

Section: Discussionmentioning

confidence: 95%

“…4 for the legend). Taher 1995, Grotsch et al 1998. The Hawar Member have led to the changes in sedimentary conditions dominated by fluvial systems (Biyadh Formation) to a marine carbonates-dominated sedimentary system (Shaiba Formation) in Saudi Arabia (Hughes 2000).…”

Section: Discussionmentioning

confidence: 99%

“…The distribution of the facies associations B, C, and D in the sections of Kuh-e-Gadvan, Rahmat-Abad and Khaneh-Kat and the gradual pattern of vertical and lateral transitions in microfacies and sub-environments (Read 1985, Burchette & Wright 1992 suggest that these sediments have been deposited in shallow marine carbonate platform with low angle gradient, i.e. a homoclinal carbonate ramp (Afzal et al 2011, Chatalov 2013. This is supported by the lack of barrier or rim (Read 1985, Pomar 2001, Ghabeishavi et al 2010, Laya & Tucker 2012, as well as by the absence of talus, turbidities sediments (Payros & Pujalte 2008, Pomar et al 2012 and restricted lagoonal facies (Read 1985, Ghabeishavi et al 2010.The presence of the facies association A with a high content of offshore skeletal grains (globigerinelloids, hedbergellids, radiolaria) and macrofossils (ammonites) suggest that some part of the study area was characterized by deep marine to basinal sedimentation (Cosovic et al 2004, Flügel 2010, Gorican et al 2012.…”

Section: Depositional Environmentmentioning

confidence: 99%

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Sequence stratigraphy and platform to basin margin facies transition of the Lower Cretaceous Dariyan Formation (northeastern Arabian Plate, Zagros fold-thrust belt, Iran)

Moosavizadeh¹,

Mahboubi²,

Moussavi‐Harami³

et al. 2015

Bull. Geosci.

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The Lower Cretaceous (Aptian-Albian) Dariyan Formation (northeastern Arabian Plate, Iran) represents the youngest sediments of the Khami group in the Zagros fold belt. This study is based on six sections located in the Izeh Zone and Interior Fars Province documenting transition from platform to a basin margin facies. Three assemblage zones based on benthic foraminifers have been identified and provide an early Aptian-early Albian age. Petrographic and microfacies analyses characterize thirteen carbonate microfacies and two mud rock lithofacies-types. The vertical and lateral facies variations observed in this study for the Dariyan Formation are in agreement with a depositional environment going from a homoclinal carbonate ramp to margin of intra-shelf basin type. Based on the identification of three sequence boundaries (SB), the Dariyan Formation sediments has been divided into three 2 nd -order depositional sequences which encompasses six and five 3 rd -order sequences in the margin of intra-shelf basin and the shallow platform settings, respectively. The early Aptian sea-level rise led to the extension of the carbonate platform and deposition of pelagic facies as a maximum flooding surface on margin of intra-shelf basin. In the late Aptian highstand phase, the platform was exposed as a result of glacio-eustatic mechanisms, whereas sediments continued to accumulate in the margin of intra-shelf basin. This study supports the general paleogeography of the studied area documented by previous studies and provides better insight to the interpretation of the evolution in this area and other similar basins.•

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Section: Discussionsupporting

confidence: 57%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Section: Depositional Environmentmentioning

confidence: 99%

See 2 more Smart Citations

Sequence stratigraphy and platform to basin margin facies transition of the Lower Cretaceous Dariyan Formation (northeastern Arabian Plate, Zagros fold-thrust belt, Iran)

Moosavizadeh¹,

Mahboubi²,

Moussavi‐Harami³

et al. 2015

Bull. Geosci.

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“…their body temperature is very close to that of the surrounding water, and therefore, they responds very quickly to even small changes in the ambient water temperature (Beavington-Penney and Racey, 2004). Temperature is generally considered to be the most important physical factor influencing the distribution of benthic foraminifera and particularly on symbiont-bearing protistans (Murrey, 2006;Fuhrman et al, 2008;Afzal et al, 2011). Fuhrman et al (2008) analyzed several parameters that control the taxonomic diversity of symbiont-bearing protistants, such as salinity, food supplies, chlorophyll, average primary productivity and surface water temperature..…”

Section: Paleobiology and Paleoecology Of Fusulinaceansmentioning

confidence: 99%

Warm water benthic foraminifera document the Pennsylvanian–Permian warming and cooling events — The record from the Western Pangea tropical shelves

Davydov

2014

Palaeogeography, Palaeoclimatology, Palaeoecology

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Shallow marine response to global climate change during the Paleocene‐Eocene Thermal Maximum, Salisbury Embayment, USA

et al. 2017

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The Paleocene‐Eocene Thermal Maximum (PETM) was an interval of extreme warmth that caused disruption of marine and terrestrial ecosystems on a global scale. Here we examine the sediments, flora, and fauna from an expanded section at Mattawoman Creek‐Billingsley Road (MCBR) in Maryland and explore the impact of warming at a nearshore shallow marine (30–100 m water depth) site in the Salisbury Embayment. Observations indicate that at the onset of the PETM, the site abruptly shifted from an open marine to prodelta setting with increased terrestrial and fresh water input. Changes in microfossil biota suggest stratification of the water column and low‐oxygen bottom water conditions in the earliest Eocene. Formation of authigenic carbonate through microbial diagenesis produced an unusually large bulk carbon isotope shift, while the magnitude of the corresponding signal from benthic foraminifera is similar to that at other marine sites. This proves that the landward increase in the magnitude of the carbon isotope excursion measured in bulk sediment is not due to a near instantaneous release of 12C‐enriched CO2. We conclude that the MCBR site records nearshore marine response to global climate change that can be used as an analog for modern coastal response to global warming.

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Dynamic response of the shallow marine benthic ecosystem to regional and pan-Tethyan environmental change at the Paleocene–Eocene boundary

Cited by 35 publications

References 61 publications

Sequence stratigraphy and platform to basin margin facies transition of the Lower Cretaceous Dariyan Formation (northeastern Arabian Plate, Zagros fold-thrust belt, Iran)

Sequence stratigraphy and platform to basin margin facies transition of the Lower Cretaceous Dariyan Formation (northeastern Arabian Plate, Zagros fold-thrust belt, Iran)

Warm water benthic foraminifera document the Pennsylvanian–Permian warming and cooling events — The record from the Western Pangea tropical shelves

Shallow marine response to global climate change during the Paleocene‐Eocene Thermal Maximum, Salisbury Embayment, USA

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