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<datestamp>2018-01-11</datestamp>
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<title lang=en>Pleistocene rolling stones or large bryozoan nodules in a mixed siliciclastic-carbonate environment (Rhodes, Greece)</title>
<creator>Moissette, Pierre</creator>
<creator>Cornee, Jean-Jacques</creator>
<creator>Koskeridou, Efterpi</creator>
<contributor>Paléoenvironnement et paléobiosphère (PP) ; Université Claude Bernard Lyon 1 (UCBL) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>University of Athens, Department of Historical Geology and Paleontology ; Université du Québec</contributor>
<description>International audience</description>
<source>ISSN: 0883-0351</source>
<source>Palaios</source>
<publisher>Society for Sedimentary Geology</publisher>
<identifier>hal-00475576</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00475576</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00475576</source>
<source>Palaios, Society for Sedimentary Geology, 2010, 25 (1), pp.24-39. 〈10.2110/palo.2009.p09-024r〉</source>
<identifier>DOI : 10.2110/palo.2009.p09-024r</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.2110/palo.2009.p09-024r</relation>
<language>en</language>
<subject lang=en>Gulf of California</subject>
<subject lang=en>New Zealand</subject>
<subject lang=en>middle pleistocene</subject>
<subject lang=en>rodolith distribution</subject>
<subject>[SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces, environment</subject>
<subject>[SDE.MCG] Environmental Sciences/Global Changes</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Spectacular accumulations of abundant bryozoan nodules (bryoliths) occur in the early Pleistocene coarse-grained, mixed carbonate-siliciclastic deposits of the Cape Arkhangelos Calcarenite of Rhodes, Greece. These bryoliths are always associated with numerous bivalves (mostly ostreids and pectinids) and serpulid worms, together with other rarer skeletal organisms. The spheroidal bryoliths vary in diameter from I cm to 16 cm, and those with a more ellipsoidal shape range from 0.8 cm to 22 cm in length and from 0.7 cm to 16 cm in width; an elongated bryolith of exceptional size (40 cm) was even found. The bryoliths are composed almost exclusively of the anascan cheilostome Calpensia nobilis and are nucleated on gravels, pebbles, or bivalve shells. After settlement of bryozoan crusts, the bryoliths increased in size by repeated overturning of these mobile hard substrates by longshore currents. The bryoliths developed at depths of 20-40 m on a flat shoal between emerged areas where bottom currents episodically accelerated during storms. The currents also transported the bryoliths, together with other skeletal elements, into deeper settings (40-80 m) where they could continue their growth, upward or downward, or be colonized by other organisms.</description>
<date>2010</date>
</dc>
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