Mid-Miocene cosmogenic upper limit for 10Be/21Ne burial

Ma, Y., Wang, W., Zheng, D., Zhang, H., Pang, J., Wu, Y., Stuart, F. M. and Xu, S. (2018) Mid-Miocene cosmogenic upper limit for 10Be/21Ne burial. Quaternary Geochronology, 48, pp. 72-79. (doi:10.1016/j.quageo.2018.08.004)

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Abstract

Cosmogenic nuclide burial dating provides an alternative method for sediment dating, and the combination of radionuclide 10Be with noble gas isotope 21Ne would theoretically extend the burial dating range up to around 15 Ma ago, which endows 10Be/21Ne pair with huge potential in middle-Miocene sediment dating. Especially in the magnetostratigraphic studies of the Cenozoic sedimentary strata, the 10Be/21Ne pair could be expected to provide absolute age marker when the well-dated volcanic ash layer or bedded mammalian fossils are absent. However, the validity and accuracy of the 10Be/21Ne burial dating when used close to its limiting middle Miocene ages has not been assessed in case study. Here, we show our dating results of the sedimentary stratum samples, which deposited at the same bedding of the Vertebrate fossils of Platybelodon tongxinensis that offer an independent age constraint between 12 and 15 Ma. The 10Be/21Ne analyses yielded a mean burial age of 13.25 ± 0.33 Ma, which agrees well with the paleontological proxy, and the MSWD value of 0.66 indicates the good agreement of the apparent dispersion of six aliquots data with their individual measurement errors. In view of the extended applicable dating range of 10Be/21Ne pair, it is promising in providing absolute age marker or valuable chronological information for a variety of fields in Earth science and beyond.

Item Type:Articles
Additional Information:This work was jointly supported by Grants-in-Aid from the basic scientific research fund, Institute of Geology, China Earthquake Administration (Grant No. IGCEA1504), the State Key Laboratory of Earthquake Dynamics (Grant No. LED2017A05), and the basic scientific research fund, Institute of Geology, China Earthquake Administration (Grant No. IGCEA1417).
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Xu, Dr Sheng and Stuart, Professor Fin
Authors: Ma, Y., Wang, W., Zheng, D., Zhang, H., Pang, J., Wu, Y., Stuart, F. M., and Xu, S.
College/School:College of Science and Engineering > Scottish Universities Environmental Research Centre
Journal Name:Quaternary Geochronology
Publisher:Elsevier
ISSN:1871-1014
ISSN (Online):1878-0350
Published Online:31 August 2018
Copyright Holders:Copyright © 2018 Elsevier B.V.
First Published:First published in Quaternary Geochronology 48: 72-79
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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