Rates of change and chronological problems during the late-glacial period

Lotter, André F.; Ammann, Brigitta; Sturm, Michael (1992). Rates of change and chronological problems during the late-glacial period. Climate dynamics, 6(3-4), pp. 233-239. Springer 10.1007/BF00193536

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Results of high-resolution AMS (14)C dating of terrestrial plant macrofossils from late-glacial and early-Holocene lake deposits in Switzerland show three periods with constant radiocarbon ages. These plateaux of constant age occur at 12700, 10000, and 9500 y BP. A comparison of this radiocarbon chronology with a varve chronology documents discrepancies between the sidereal and the radiocarbon time-scale for the late-glacial period. The age-plateaux and the time-scale discrepancies have a significant impact on the estimation of rates of change during this period: estimates of rates of change can be very misleading if calculated on the basis of radiocarbon ages. This is illustrated by an example of estimated rates of late-glacial and early Holocene palynological change in Switzerland.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Palaeoecology
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Lotter, André Franz and Ammann, Brigitta

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

0930-7575

Publisher:

Springer

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

15 Jan 2018 14:01

Last Modified:

23 Oct 2019 04:40

Publisher DOI:

10.1007/BF00193536

Additional Information:

Contribution to Clima Locarno — Past and Present Climate Dynamics; Conference September 1990, Swiss Academy of Sciences — National Climate Program

BORIS DOI:

10.7892/boris.106888

URI:

https://boris.unibe.ch/id/eprint/106888

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