LIMESTONE-MARL COUPLETS - ORIGIN OF THE EARLY PLIOCENE TRUBI MARLS IN CALABRIA, SOUTHERN ITALY

Indicates that the rhythmic sedimentation pattern is related to changes in surface water productivity. Relative to the marls, the limestone units are typically marked by higher abundances of the planktonic foraminifera G. bulloides, higher numbers of benthic foraminifera, higher δ13C values and lowe...

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Bibliographic Details
Main Authors: THUNELL R, SPROVIERI R, RAFFI I., RIO, DOMENICO
Other Authors: Thunell, R, Rio, Domenico, Sprovieri, R, Raffi, I.
Format: Article in Journal/Newspaper
Language:English
Published: Society of Economic Paleontologists and Mineralogists:Society for Sedimentary Geo, 6128 East 38th, Suite 308:Tulsa, OK 74135:(800)865-9765, (918)610-3361, EMAIL: hharper@sepm.org, INTERNET: http://www.sepm.org, Fax: (918)621-1685 1991
Subjects:
Milankovitch cycle
Carbonate
Foraminifera
Pliocene
rhythmic sedimentation
Trubi Marl
upwelling
Planktonic foraminifera
Online Access:http://hdl.handle.net/11577/112175
Description
Summary:Indicates that the rhythmic sedimentation pattern is related to changes in surface water productivity. Relative to the marls, the limestone units are typically marked by higher abundances of the planktonic foraminifera G. bulloides, higher numbers of benthic foraminifera, higher δ13C values and lower δ18C values. These characteristics are interpreted as indicating that cool, highly productive conditions existed during the deposition of the limestone units. -

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