NDLI: Rhodalgal-bryomol temperate carbonates from the Apulian shelf (Southeastern Italy), relict and modern deposits on a current dominated shelf

Content Provider	Springer Nature Link
Author	Tosca, Fracesco Sorgente, Barbara
Copyright Year	2002
Abstract	Mound-shaped algal banks and associated bioclastic deposits have been investigated on the Apulian shelf, SE Italy, off Capo d’Otranto and Santa Maria di Leuca within a bathymetric range of 53–60m water depth. The bioclastic deposits form different sand-gravel skeletal assemblages; each one characterised by different associations and occurrence of prevailing organisms in relation to substratum types. These deposits lie on a lee shore and form rhodalgal and bryomol relict-modern deposits which originate from the banks’ erosion by means of bottom currents and storms. These play a significant role in reworking bottom preventing colonization by a sessile stabilizing bottom community, and mobile deposits prevent large encrustations. Sediments are thus characterised by a variable taphonomical preservation state and time-averaging as shown by the occurrence of abraded bryozoan growth forms. The banks, sub-circular in shape, display a maximum diameter of 70 m and 1–2m relief. Their position on the shelf coincides with the present day 50 m isobath and it is assumed to correspond to a paleoshore such as that which formed in the Holocene during the transgression following the last ice age. Living counterparts of these banks occur today north of the study area at 10–30 m water depth.
Starting Page	103
Ending Page	118
Page Count	16
File Format	PDF
ISSN	01729179
Journal	Facies
Volume Number	46
Issue Number	1
e-ISSN	16124820
Language	English
Publisher	Springer-Verlag
Publisher Date	2002-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Apulian continental shelf Algal banks Biogenic carbonates Modern plus relict skeletal sediments Biogeosciences Geochemistry Paleontology Sedimentology Ecology
Content Type	Text
Resource Type	Article
Subject	Geology Stratigraphy Paleontology

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