Pliocene trace fossils from oyster substrates in the Nijar Basin, Betic Cordillera, southern Spain

被引:1
|
作者
Donovan, Stephen K. [1 ]
Jones, Stuart J. [2 ]
King, Abigail R. [3 ]
Harper, David A. T. [2 ]
机构
[1] Apartment 5,251 Worsley Rd, Manchester M27 0YE, Lancs, England
[2] Univ Durham, Dept Earth Sci, Durham DH1 3LE, England
[3] Univ Durham, Dept Anthropol, Durham DH1 3LE, England
关键词
Neogene; Andalucia; Trace fossils; Borings; Entobia ichnofacies; Saccostrea; SE SPAIN; CARBONERAS BASIN; STRATIGRAPHY; BIOEROSION; ALMERIA; ORIGIN; SEDIMENTATION; EVOLUTION; MIOCENE; MODELS;
D O I
10.1016/j.pgeola.2021.02.004
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
The Almeria-Nijar Basin is a Neogene, intermontane depression marginal to theMediterranean in southern Spain in the vicinity of El Argamason, Andalucia. The Pliocene Cuevas Formation rests unconformably on the Upper Messinian rock succession in the Carboneras Fault Zone. The Cuevas Formation is a coarse-grained, bioclasticrich, calcarenite to calcirudite shoreface deposit. Oysters, namely Saccostrea cucullata (Born), are locally common and preserve amoderate diversity of borings: Caulostrepsis taeniola Clarke; Entobia isp.; Gastrochaenolites isp. aff. G. lapidicus Kelly and Bromley; Maeandropolydora isp. cf. M. sulcans Voigt; Oichnus paraboloides Bromley; and Talpina isp. aff. T. hirsuta Voigt. All represent domiciles except for the predatory O. paraboloides trace. This suite of ichnotaxa is assigned to the Entobia ichnofacies sensu Bromley and Asgaard; they are comparable, particularly, with the Boulder Assemblage of the Pliocene of Rhodes, Greece. Physical disturbance is an important parameter in favouring this pattern of infestation, whether the bored clasts are boulders or oyster valves. (C) 2021 The Geologists' Association. Published by Elsevier Ltd. All rights reserved.
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页码:358 / 368
页数:11
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