Paleoclimate records from maar Monticchio

Oxygen-isotope records from Greenland ice cores indicate numerous rapid climate fluctuations during the last glacial period. North Atlantic marine sediment cores show comparable variability in sea surface temperature and the deposition of icerafted debris. In contrast, very few continental records o...

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Bibliographic Details
Main Authors: Allen, Judy R M, Brandt, Ute, Brauer, Achim, Huntley, Brian, Keller, Jörg, Kraml, Michael, Mackensen, Andreas, Mingram, Jens, Negendank, Jörg F W, Nowaczyk, Norbert R, Watts, William A, Wulf, Sabine, Zolitschka, Bernd, Hubberten, Hans-Wolfgang, Oberhänsli, Hedi
Format: Dataset
Language:English
Published: PANGAEA 1999
Subjects:
25/4-11
Basilicata
southern Italy
CDRILL
Core drilling
KL
Lago_Grande_di_Monticchio
M25/4
M25/4-KL11
Meteor (1986)
Piston corer (BGR type)
Greenland
Greenland ice core
Greenland ice cores
ice core
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.707088
https://doi.org/10.1594/PANGAEA.707088
Description
Summary:Oxygen-isotope records from Greenland ice cores indicate numerous rapid climate fluctuations during the last glacial period. North Atlantic marine sediment cores show comparable variability in sea surface temperature and the deposition of icerafted debris. In contrast, very few continental records of this time period provide the temporal resolution and environmental sensitivity necessary to reveal the extent and effects of these environmental fluctuations on the continents. Here we present high-resolution geochemical, physical and pollen data from lake sediments in Italy and from a Mediterranean sediment core, linked by a common tephrochronology. Our lacustrine sequence extends to the past 102,000 years. Many of its features correlate well with the Greenland ice-core records, demonstrating that the closely coupled ocean-atmosphere system of the Northern Hemisphere during the last glacial extended its influence at least as far as the central Mediterranean region. Numerous vegetation changes were rapid, frequently occurring in less than 200 years, showing that the terrestrial biosphere participated fully in lastglacial climate variability. Earlier than 65,000 years ago, our record shows more climate fluctuations than are apparent in the Greenland ice cores. Together, the multi-proxy data from the continental and marine records reveal differences in the seasonal character of climate during successive interstadials, and provide a step towards determining the underlying mechanisms of the centennial-millennial-scale variability.

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