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

• 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:[phone], [phone], EMAIL: [e-mail], INTERNET: http://www.sepm.org, Fax: [phone] 1991
• Subjects: Milankovitch cycle; Carbonate; Foraminifera; Pliocene; rhythmic sedimentation; Trubi Marl; upwelling; Planktonic foraminifera
• Online Access: http://hdl.handle.net/11577/112175

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. -