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Early Pleistocene (Calabrian) marine bottom oxygenation and palaeoclimate at the southern margin of the Central Anatolian Plateau

Nazik Ogretmen, Virgilio Frezza, Natalia Hudackova, Elsa Gliozzi, Paola Cipollari, Costanza Faranda, Giuditta Radeff and Domenico Cosentino
Early Pleistocene (Calabrian) marine bottom oxygenation and palaeoclimate at the southern margin of the Central Anatolian Plateau
Italian Journal of Geosciences (October 2018) 137 (3): 452-464

Abstract

The Mediterranean Basin is a semi-enclosed basin highly sensitive to climate changes such as evaporation-precipitation processes and glacial-interglacial transitions. It is composed by two main basins, the Western Mediterranean and the Eastern Mediterranean, which are differently sensitive to the high latitude and low latitude climate interactions. Such differences could translate in different reactions to climate changes recorded in the bottom sediments, i.e. the enhanced effects of the freshwater inputs on the bottom oxygenation in the Eastern Mediterranean. In this paper we investigate the palaeoenvironment and palaeoclimate derived from the study of Early Pleistocene (Calabrian) deep marine deposits cropping out along the southern margin of the Central Anatolian Plateau at the Gulnar East section (southern Turkey). Using benthic and planktonic foraminifers the bottom oxygenation and the sea surface temperature (SST) were evaluated through the calculation of the benthic foraminifera oxygen index (BFOI) and palaeoclimate curve. The results show that the marine epibathyal palaeonvironment in this Eastern Mediterranean area reacted to the palaeoclimate changes with the water mass stratification (warm periods) and/or with enhanced primary productivity (cool/cold periods) leading to the deposition of sapropel layers with different degrees of bottom oxygenation.


ISSN: 2038-1719
EISSN: 2038-1727
Coden: BOGIAT
Serial Title: Italian Journal of Geosciences
Serial Volume: 137
Serial Issue: 3
Title: Early Pleistocene (Calabrian) marine bottom oxygenation and palaeoclimate at the southern margin of the Central Anatolian Plateau
Affiliation: Roma Tre University, Department of Sciences, Rome, Italy
Pages: 452-464
Published: 201810
Text Language: English
Publisher: Societa Geologica Italiana, Rome, Italy
References: 92
Accession Number: 2019-004694
Categories: Quaternary geologyInvertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, geol. sketch map
N30°00'00" - N31°00'00", E33°00'00" - E34°00'00"
N34°04'11" - N34°04'11", E32°43'31" - E32°43'31"
Secondary Affiliation: Sapienza University of Rome, ITA, ItalyComenius University in Bratislava, SVK, Slovakia
Country of Publication: Italy
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Abstract, Copyright, Societa Geologica Italiana. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201905
Program Name: ODPOcean Drilling Program
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