Chlorine-36 evidence for the Mono Lake event in the Summit GRIP ice core
A distinct peak has been discovered in the 36 Cl data from the GRIP ice core between the Dansgaard Oeschger (D-O) events 6 and 7 at approximately 32 kyr BP. This peak can be attributed to a minimum of the geomagnetic dipole field associated with the Mono Lake event. Since the 36 Cl peak reflects a h...
Published in: | Earth and Planetary Science Letters |
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Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2000
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Subjects: | |
Online Access: | https://doi.org/10.1016/S0012-821x(00)00196-5 |
Summary: | A distinct peak has been discovered in the 36 Cl data from the GRIP ice core between the Dansgaard Oeschger (D-O) events 6 and 7 at approximately 32 kyr BP. This peak can be attributed to a minimum of the geomagnetic dipole field associated with the Mono Lake event. Since the 36 Cl peak reflects a higher production rate of all cosmogenic radionuclides, it has an impact on the 14 C dating of the last ice age. Furthermore, it provides an additional time marker similar to a peak found earlier corresponding to the Laschamp event at approximately 39 kyr BP. |
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