Western versus eastern Mediterranean paleoceanographic response to astronomical forcing: a high-resolution microplankton study of precession-controlled sedimentary cycles during the Messinian

Pérez-Folgado, Marta; Sierro, Francisco J.; Bárcena, María Ángeles; Flores, José Abel; Vázquez, Antonio; Utrilla, Rosa; Hilgen, F.J.; Krijgsman, Wout; Filippelli, Gabriel M.

doi:10.1016/s0031-0182(02)00612-0

Cited by 48 publications

(88 citation statements)

References 35 publications

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“…By contrast, a model study by Weber and Tuenter [] determined that little to no time lag exists for precessional climate forcing, particularly at midlatitudes. Specifically for the Abad marls of the Sorbas Basin, Pérez‐Folgado et al [] proposed that deposition of the sapropelic layers coincided with the transition from precession maxima to precession minima, based on a comparison of faunal responses measured at subprecessional resolution in the Sorbas Abad marls and an open Mediterranean site (Gavdos). While the cyclicity of changes in foraminiferal assemblages is essentially identical at the two locations, the lithological cyclicity is not.…”

Section: Methodsmentioning

confidence: 99%

“…Samples from the lower interval of the UA marls (cycles UA5 to UA8, ~6.61 to 6.55 Ma, [ Sierro et al , ]) were collected from an ~10 m section near Los Molinos (37°05′22″N, 2°04′08″W) for high temporal resolution studies [see Filippelli et al , ; Pérez‐Folgado et al , ]. Surface material was removed before collecting fresh, uncontaminated sediment (F. Sierro, personal communication).…”

Section: Methodsmentioning

confidence: 99%

“…(c) Ceara Rise (tropical W Atlantic) ODP Leg 154 Site 926 δ 18 O [ Shackleton and Hall , ]. (d) Sorbas basin B/P and (e) G. bulloides records from Pérez‐Folgado et al []. (f) 87 Sr/ 86 Sr isotope compositions of Sorbas basin planktic foraminifera.…”

Section: The Sorbas Basinmentioning

confidence: 99%

“…However, like sapropels, their formation has been linked to precession minima when enhanced monsoon‐derived freshwater runoff stimulates productivity and reduced bottom water oxygenation (see Rohling et al [] for an extensive review). Sediment laminations and the paucity of benthic foraminifera suggest that bottom water anoxia during precession minima is the primary control of sapropelic deposition in the Sorbas Basin [ Pérez‐Folgado et al , ; Sierro et al , ]. By contrast, the diatomite layer is thought to have formed during precession maxima, when drier conditions result in greater fresh water loss, higher surface water salinity, destabilization of the water column, and enhanced vertical mixing.…”

Section: The Sorbas Basinmentioning

confidence: 99%

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Precessional variability of⁸⁷Sr/⁸⁶Sr in the late Miocene Sorbas Basin: An interdisciplinary study of drivers of interbasin exchange

et al. 2017

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We present the first subprecessional record of seawater 87Sr/86Sr isotope ratios for a marginal Mediterranean subbasin. The sediments contained in this interval (three precessional cycles between 6.60 and 6.55 Ma) are important because they record conditions during the transition to the Messinian Salinity Crisis (MSC; 5.97 to 5.33 Ma), an event for which many details are still poorly understood. The record, derived from planktic foraminifera of the late Miocene Sorbas Basin (SE Spain), shows brief excursions with precessional cyclicity to 87Sr/86Sr ratios higher than coeval ocean 87Sr/86Sr. The hydrologic conditions required to generate the observed record are investigated using box modeling, constrained using a new paleodepth estimate (150 to 250 m) based on benthic foraminiferal assemblages. The box model results highlight the role of climate‐driven interbasin density contrast as a significant driver of, or impediment to, exchange. The results are particularly significant in the context of the MSC, where 87Sr/86Sr excursions have been interpreted purely as a consequence of physical restriction. To replicate the observed temporal patterns of lithological variations and 87Sr/86Sr isotope excursions, the Sorbas Basin “box” must have a mainly positive hydrologic budget, in contrast with the Mediterranean's negative budget during the late Miocene. This result has implications for the assumption of synchronous deposition of specific sedimentary layers (sapropels) between marginal and open Mediterranean settings at subprecessional resolution. A net positive hydrologic budget in marginal Mediterranean subbasins may reconcile observations of freshwater inclusions in gypsum deposits.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: The Sorbas Basinmentioning

confidence: 99%

Section: The Sorbas Basinmentioning

confidence: 99%

See 2 more Smart Citations

Precessional variability of⁸⁷Sr/⁸⁶Sr in the late Miocene Sorbas Basin: An interdisciplinary study of drivers of interbasin exchange

et al. 2017

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“…Our study is supplemented by several other examinations of P geochemistry in the region, including an analysis of the role that phosphogenesis (the authigenic formation of CFA) plays in the ultimate burial of P [7,22,24] and the interplay between paleoredox variations and the reflux of P back to the water column, perhaps fueling higher productivity in the Oman and Somalian coastal upwelling zones and indeed across the entire basin. This link between paleoredox and surface productivity has also been the focus of other regional-scale studies in the Mediterranean, where the redox-P-productivity process was a significant factor driving Milankovitch-scale ecosystem changes during the formation of Mediterranean sapropel-marl sequences during the latest Miocene [25,26].…”

Section: Introductionmentioning

confidence: 64%

Carbon and Phosphorus Cycling in Arabian Sea Sediments across the Oxygen Minimum Zone

Filippelli¹,

Cowie²

2017

J Oceanogr Mar Res

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Upwelling history of the Mediterranean Sea revealed by stunted growth in the planktic foraminifera Orbulina universa (early Messinian, Crete, Greece)

Brachert

Bornemann

Reuter

et al. 2014

Int J Earth Sci (Geol Rundsch)

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Microfossil and stable isotope data (delta C-13, delta O-18) from deep-water sediments of Late Miocene age in the Mediterranean region have revealed a stepwise restriction of the Mediterranean prior to the Messinian Salinity Crisis which was modulated by a cyclicity responding to orbital precession. Very little is known with regard to the effects of these changes on shallow water environments of carbonate platforms and ramps. This work is based on a geological section on Crete (Greece) exposing sediments of early Messinian age, which documents the coeval response of pelagic and neritic systems to oceanographic changes. We discuss a dataset of planktic and benthic foraminifera assemblages in conjunction with size measurements (n = 6,777) and isotope analyses (delta O-18, delta C-13) of the planktic foraminifera Orbulina universa with regard to reef growth patterns. The planktic foraminifera fauna displays pronounced cyclical abundance changes of warm, oligotrophic (O. universa) and cold, meso-to eu-trophic taxa (globigerinids, neogloboquadrinids). This cyclicity corresponds to lithological changes from laminated to homogeneous marls on the precessional frequency band. In beds rich in mesotrophic foraminifera, O. universa is rare and the test is similar to 50 % smaller than average. Growth and size of O. universa is affected by various environmental factors, including temperature, trophic resources, illumination and O-2 content of ambient water. Explaining size variability by water temperature implies a change of similar to 11 degrees C over one precessional cycle. This estimate is in disagreement with growth patterns and stable isotope data of displaced reef corals (Porites, Tarbellastraea) documenting almost constant sea-surface temperatures, but substantial evaporation. Therefore, moderate temperature changes in a context of intense evaporation (high salinity) and water column destabilization associated with upward mixing of colder water masses with higher nutrient concentrations and low O-2 content better fits size variation of O. universa. From the presence of Halimeda bioherms intercalated with the sapropel cycles, we infer cyclic photic zone anoxia and at least some sections with sapropel couplets to have formed in the neritic zone. We also suggest further testing of stunted growth of O. universa as a proxy for enhanced nutrient availability in future palaeoceanographic studies

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Western versus eastern Mediterranean paleoceanographic response to astronomical forcing: a high-resolution microplankton study of precession-controlled sedimentary cycles during the Messinian

Cited by 48 publications

References 35 publications

Precessional variability of⁸⁷Sr/⁸⁶Sr in the late Miocene Sorbas Basin: An interdisciplinary study of drivers of interbasin exchange

Precessional variability of⁸⁷Sr/⁸⁶Sr in the late Miocene Sorbas Basin: An interdisciplinary study of drivers of interbasin exchange

Carbon and Phosphorus Cycling in Arabian Sea Sediments across the Oxygen Minimum Zone

Upwelling history of the Mediterranean Sea revealed by stunted growth in the planktic foraminifera Orbulina universa (early Messinian, Crete, Greece)

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Western versus eastern Mediterranean paleoceanographic response to astronomical forcing: a high-resolution microplankton study of precession-controlled sedimentary cycles during the Messinian

Cited by 48 publications

References 35 publications

Precessional variability of87Sr/86Sr in the late Miocene Sorbas Basin: An interdisciplinary study of drivers of interbasin exchange

Precessional variability of87Sr/86Sr in the late Miocene Sorbas Basin: An interdisciplinary study of drivers of interbasin exchange

Carbon and Phosphorus Cycling in Arabian Sea Sediments across the Oxygen Minimum Zone

Upwelling history of the Mediterranean Sea revealed by stunted growth in the planktic foraminifera Orbulina universa (early Messinian, Crete, Greece)

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Product

Resources

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Precessional variability of⁸⁷Sr/⁸⁶Sr in the late Miocene Sorbas Basin: An interdisciplinary study of drivers of interbasin exchange

Precessional variability of⁸⁷Sr/⁸⁶Sr in the late Miocene Sorbas Basin: An interdisciplinary study of drivers of interbasin exchange