Structure and function of large, lobed Zoophycos, Pliocene of Rhodes, Greece

Bromley, Richard G.; Hanken, Nils‐Martin

doi:10.1016/s0031-0182(02)00680-6

Cited by 85 publications

(78 citation statements)

References 33 publications

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“…There is no visible interfingering between the Kolymbia limestone and the Lindos Bay clay in the Cape Vagia basin. The boundary was reported to be positioned approximately 70 cm below a characteristic red ash bed by Hanken et al (1996) or where the carbonate content falls below 50% (Bromley and Hanken 2003). In contrast, we observed a clear and consistent lithological change 90 cm beneath the red ash bed at Cape Vagia.…”

Section: Stratigraphysupporting

confidence: 43%

“…Where the boundary can be observed, the Kolymbia limestone onlaps and locally drapes the basement. A sparsely exposed basal conglomerate, the Haraki limestone (Hanken et al 1996;Bromley and Hanken 2003) is thin and yellowish with pebble-size basement clasts. Whether or not this conglomerate represents a distinct stratigraphic unit is not considered in this paper, where we treat it as part of facies 1 (Table 1).…”

Section: Stratigraphymentioning

confidence: 99%

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Fossils, sediments, tectonics

Steinthorsdottir

Lidgard

Håkansson

2006

Facies

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Tectonic displacement and small-scale tsunamis apparently affected deposition of the Kolymbia limestone, Cape Vagia, Rhodes, Eastern Mediterranean. Coarse beds interrupt the sequential build-up of this Pliocene-Pleistocene bryomol limestone. Celleporid bryozoans, bivalves, and brachiopods dominate these beds. The palaeoecology of the thicket-forming Celleporaria palmata is re-evaluated and subsequently revised. The limestone comprises two parasequences in a transgressive systems tract, and deposition occurred at palaeodepths between 30 and 120 m. At intervals, tectonic movements lowered relative sea level and sent slumps of shallow-water fauna downslope. The depositional history was validated using independent sets of data: sediment structure and grain size, palaeobathymetry using bryozoan growth forms and occurrences of modern representatives of bryozoans and other taxa, basin configuration, and regional tectonics. Concordance of these lines of evidence provides a means of evaluating confidence in palaeoenvironmental inferences.

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Section: Stratigraphysupporting

confidence: 43%

Section: Stratigraphymentioning

confidence: 99%

Fossils, sediments, tectonics

Steinthorsdottir

Lidgard

Håkansson

2006

Facies

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“…Bioturbation effects have been previously discussed, in general [Bard, 2001] and for the specific example of Zoophycos burrows [Löwemark and Werner, 2001;Bromley and Hanken, 2003]. Löwemark and Werner [2001] emphasize that there can be considerable difficulty in recognising Zoophycos traces in unconsolidated sediments, and suggest that such burrows may cause age falsifications of as much as 1110-2525 years.…”

Section: Introduction and Rationalementioning

confidence: 95%

A stratigraphically controlled multiproxy chronostratigraphy for the eastern Mediterranean

et al. 2007

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[1] An Accelerator Mass Spectrometry (AMS) 14 C dated multiparameter event stratigraphy is developed for the Aegean Sea on the basis of highly resolved (centimeter to subcentimeter) multiproxy data collected from four late glacial to Holocene sediment cores. We quantify the degree of proportionality and synchroneity of sediment accumulation in these cores and use this framework to optimize the confidence levels in regional marine, radiocarbon-based chronostratigraphies. The applicability of the framework to published, lower-resolution records from the Aegean Sea is assessed. Next this is extended into the wider eastern Mediterranean, using new and previously published high-resolution data from the northern Levantine and Adriatic cores. We determine that the magnitude of uncertainties in the intercore comparison of AMS 14 C datings based on planktonic foraminifera in the eastern Mediterranean is of the order of ±240 years (2 SE). These uncertainties are attributed to synsedimentary and postsedimentary processes that affect the materials dated. This study also offers a background age control that allows for vital refinements to radiocarbon-based chronostratigraphy in the eastern Mediterranean, with the potential for similar frameworks to be developed for any other well-studied region.

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“…is generally assumed to be the trace of an as yet undiscovered deposit-feeder. For discussion of this ichnogenus see Ekdale (1992) and Bromley & Hanken (2003). Very few finds of hybrids of Zoophycos and other trace fossils have been reported; the Zoophycos-Lophoctenium hybrid structures as mentioned above deserve a more detailed report.…”

Section: Synopsis Of Ichnotaxamentioning

confidence: 97%

Ichnology of the Cretaceous Oceanic Red Beds (Outer Western Carpathians, Czech Republic)

Mikuláš¹,

Skupien²,

Bubík³

et al. 2009

Geologica Carpathica

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Large differences in the intensity and overall character of bioturbational structures were found in five facies containing hemipelagic red beds. Red beds (CORB) of the Godula facies of the Silesian Unit and their equivalents (mostly not red) in the Kelč facies of the Silesian Unit and the CORB in the non-calcareous sediments of the Rača Unit display a very low degree of bioturbation. The CORB facies of the Rača Unit, containing calcareous intercalations, displays a very high degree of bioturbation as expressed by a high ichnofabric index. They contain trace fossils Chondrites, Zoophycos, Planolites, Thalassinoides, Palaeophycus, Teichichnus and Phycosiphon. The supply of food obviously acted as the controlling factor. The "calcareous" facies of the CORB of the Rača Unit has a considerably higher proportion of sand-dominated interbeds and also carbonates than the non-calcareous facies. This (especially the presence of carbonates) suggests a relative proximity of food-rich environments and an easy transport of nutrition-rich substrate by turbidite currents into the basin directly, not only by periodical fall-out of dead plankton (which is probably responsible for the rhythmicity of poor colonization horizons in weakly bioturbated units).

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Structure and function of large, lobed Zoophycos, Pliocene of Rhodes, Greece

Cited by 85 publications

References 33 publications

Fossils, sediments, tectonics

Fossils, sediments, tectonics

A stratigraphically controlled multiproxy chronostratigraphy for the eastern Mediterranean

Ichnology of the Cretaceous Oceanic Red Beds (Outer Western Carpathians, Czech Republic)

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