publication . Other literature type . Article . 2018

Connecting the Greenland ice-core and U∕Th timescales via cosmogenic radionuclides: testing the synchroneity of Dansgaard–Oeschger events

F. Adolphi; F. Adolphi; C. Bronk Ramsey; T. Erhardt; R. L. Edwards; H. Cheng; H. Cheng; C. S. M. Turney; A. Cooper; A. Svensson; ...
Open Access English
  • Published: 20 Nov 2018
Abstract
During the last glacial period Northern Hemisphere climate was characterized by extreme and abrupt climate changes, so-called Dansgaard–Oeschger (DO) events. Most clearly observed as temperature changes in Greenland ice-core records, their climatic imprint was geographically widespread. However, the temporal relation between DO events in Greenland and other regions is uncertain due to the chronological uncertainties of each archive, limiting our ability to test hypotheses of synchronous change. In contrast, the assumption of direct synchrony of climate changes forms the basis of many timescales. Here, we use cosmogenic radionuclides (10Be, 36Cl, 14C) to link Gre...
Subjects
free text keywords: 530 Physics, Paleontology, Stratigraphy, Global and Planetary Change, lcsh:Environmental pollution, lcsh:TD172-193.5, lcsh:Environmental protection, lcsh:TD169-171.8, lcsh:Environmental sciences, lcsh:GE1-350, Ice core, Climatology, Absolute dating, Northern Hemisphere, Climate change, Glacial period, Speleothem, geography.geographical_feature_category, geography, Geology, Proxy (climate), Wiggle matching
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