Skip to Main Content
GEOREF RECORD

Climatic conditions during marine oxygen isotope Stage 6 in the eastern Mediterranean region from the isotopic composition of speleothems of Soreq Cave, Israel

Avner Ayalon, Miryam Bar-Matthews and Aaron Kaufman
Climatic conditions during marine oxygen isotope Stage 6 in the eastern Mediterranean region from the isotopic composition of speleothems of Soreq Cave, Israel
Geology (Boulder) (April 2002) 30 (4): 303-306

Abstract

At several times during marine oxygen isotope stage 6, the eastern Mediterranean region was influenced by two extreme climatic systems: the large ice sheet over northern Europe and the wet tropics associated with African monsoons. During this interval, two major climatic events occurred in the region; the sapropel S6 layer formed ca. 176 ka in the eastern Mediterranean basin owing to the increase in the African monsoon, and another event, although not large enough to form sapropel, occurred ca. 151 ka. The isotopic composition of Soreq Cave speleothems seems to record these events as very low delta (super 18) O-delta (super 13) C values dated as ca. 178 and 152 ka. The very low delta (super 18) O-delta (super 13) C values of -6 ppm and -11 ppm to -12 ppm, respectively, are typical of interglacial intervals, but here they were recorded during a glacial interval. Such low peaks indicate that in this part of the eastern Mediterranean region, i.e., Israel, the rainfall amount increased dramatically. Moreover, the isotopic record of the speleothems also shows that during the entire stage 6, although the climate was as cold as much of the last glacial, the conditions were never as dry.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 30
Serial Issue: 4
Title: Climatic conditions during marine oxygen isotope Stage 6 in the eastern Mediterranean region from the isotopic composition of speleothems of Soreq Cave, Israel
Affiliation: Geological Survey of Israel, Jerusalem, Israel
Pages: 303-306
Published: 200204
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 41
Accession Number: 2002-030918
Categories: Quaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
N31°23'60" - N31°30'00", E35°00'00" - E35°04'60"
Secondary Affiliation: Weizmann Institute of Science, ISR, Israel
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 200211
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal