Laschamp Excursion at Mono Lake?
The Laschamp Geomagnetic Excursion (ca. 41 ka) and a related increase of cosmogenic nuclides provides a global tie point among sedimentary and ice core records. In the Wilson Creek Formation, Mono Lake, California, the Laschamp Excursion has not been recognized although the so-called Mono Lake excur...
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ftdatacite:10.7916/d8280j4t 2023-05-15T16:39:00+02:00 Laschamp Excursion at Mono Lake? Kent, Dennis V. Hemming, Sidney R. Turrin, Brent D. 2002 https://dx.doi.org/10.7916/d8280j4t https://academiccommons.columbia.edu/doi/10.7916/D8280J4T unknown Columbia University Geophysics Text Articles article-journal ScholarlyArticle 2002 ftdatacite https://doi.org/10.7916/d8280j4t 2021-11-05T12:55:41Z The Laschamp Geomagnetic Excursion (ca. 41 ka) and a related increase of cosmogenic nuclides provides a global tie point among sedimentary and ice core records. In the Wilson Creek Formation, Mono Lake, California, the Laschamp Excursion has not been recognized although the so-called Mono Lake excursion was found in the section with an estimated age of about 28 14C ka. However, our reevaluation of the age of the Mono Lake excursion at its type locality using new 14C dates on carbonates and 40Ar/39Ar sanidine dates on ash layers yields an estimate of 38-41 ka. This chronology and the absence of a second excursion in the Wilson Creek Formation suggest that the distinct paleomagnetic feature with negative inclinations at Mono Lake is correlative with the Laschamp Excursion. Text ice core DataCite Metadata Store (German National Library of Science and Technology) |
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Geophysics |
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Geophysics Kent, Dennis V. Hemming, Sidney R. Turrin, Brent D. Laschamp Excursion at Mono Lake? |
topic_facet |
Geophysics |
description |
The Laschamp Geomagnetic Excursion (ca. 41 ka) and a related increase of cosmogenic nuclides provides a global tie point among sedimentary and ice core records. In the Wilson Creek Formation, Mono Lake, California, the Laschamp Excursion has not been recognized although the so-called Mono Lake excursion was found in the section with an estimated age of about 28 14C ka. However, our reevaluation of the age of the Mono Lake excursion at its type locality using new 14C dates on carbonates and 40Ar/39Ar sanidine dates on ash layers yields an estimate of 38-41 ka. This chronology and the absence of a second excursion in the Wilson Creek Formation suggest that the distinct paleomagnetic feature with negative inclinations at Mono Lake is correlative with the Laschamp Excursion. |
format |
Text |
author |
Kent, Dennis V. Hemming, Sidney R. Turrin, Brent D. |
author_facet |
Kent, Dennis V. Hemming, Sidney R. Turrin, Brent D. |
author_sort |
Kent, Dennis V. |
title |
Laschamp Excursion at Mono Lake? |
title_short |
Laschamp Excursion at Mono Lake? |
title_full |
Laschamp Excursion at Mono Lake? |
title_fullStr |
Laschamp Excursion at Mono Lake? |
title_full_unstemmed |
Laschamp Excursion at Mono Lake? |
title_sort |
laschamp excursion at mono lake? |
publisher |
Columbia University |
publishDate |
2002 |
url |
https://dx.doi.org/10.7916/d8280j4t https://academiccommons.columbia.edu/doi/10.7916/D8280J4T |
genre |
ice core |
genre_facet |
ice core |
op_doi |
https://doi.org/10.7916/d8280j4t |
_version_ |
1766029363537510400 |