Stable carbon and oxygen isotope ratios of bulk sediment from the Weddell Sea

Carbon isotope measurements were made on bulk sediments from the well preserved calcareous sequences recovered at ODP Sites 689 and 690 on the Maud Rise, Weddell Sea, Antarctica. The very positive delta13C values that characterize the late Paleocene and the rapid trend toward lighter values in the e...

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Bibliographic Details
Main Authors: Shackleton, Nicholas J, Hall, Michael A
Format: Other/Unknown Material
Language:English
Published: PANGAEA 1990
Subjects:
113-689B
113-690B
113-690C
DRILL
Drilling/drill rig
Joides Resolution
Leg113
Ocean Drilling Program
ODP
South Atlantic Ocean
Antarc*
Antarctica
Weddell Sea
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.726425
https://doi.org/10.1594/PANGAEA.726425
Description
Summary:Carbon isotope measurements were made on bulk sediments from the well preserved calcareous sequences recovered at ODP Sites 689 and 690 on the Maud Rise, Weddell Sea, Antarctica. The very positive delta13C values that characterize the late Paleocene and the rapid trend toward lighter values in the early Eocene established in other sites are clearly recorded here and may be of value for long-distance stratigraphic correlation. However, values in the late Eocene are significantly more positive than have been reported from other areas. The general pattern of the records from Sites 689 and 690 is sufficiently unlike those previously reported from lower latitudes that we suggest that carbon isotope data should be used only with considerable caution for correlating sequences from such high latitudes with lower latitude records.

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