Saha, S. orcid.org/0000-0001-7106-2936, Moon, S. orcid.org/0000-0001-5207-1781, Brown, N.D. orcid.org/0000-0002-7385-8679 et al. (5 more authors) (2021) Holocene depositional history inferred from single‐grain luminescence ages in Southern California, North America. Geophysical Research Letters, 48 (15). e2021GL092774. ISSN 0094-8276
Abstract
Significant sediment flux and deposition in a sedimentary system are influenced by climate changes, tectonics, lithology, and the sedimentary system's internal dynamics. Identifying the timing of depositional periods from stratigraphic records is a first step to critically evaluate the controls of sediment flux and deposition. Here, we show that ages of single-grain K-feldspar luminescence subpopulations may provide information on the timing of previous major depositional periods. We analyzed 754 K-feldspar single-grains from 17 samples from the surface to ∼9 m-depth in a trench located downstream of the Mission Creek catchment. Single-grain luminescence subpopulation ages significantly overlap at least eight times since ∼12.0 ka indicating a common depositional history. These depositional periods correspond reasonably well with the Holocene intervals of wetter than average climate conditions based on hydroclimatic proxies from nearby locations. Our findings imply a first-order climatic control on sediment depositional history in southern California on a millennial timescale.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021. American Geophysical Union. |
Keywords: | IRSL dating; single-grain luminescence dating; sediment deposition; Southern California; Holocene wet intervals; nite; ixture; odel; fimm |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Social Sciences (Sheffield) > Department of Geography (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 11 Dec 2023 15:46 |
Last Modified: | 11 Dec 2023 15:46 |
Status: | Published |
Publisher: | American Geophysical Union (AGU) |
Refereed: | Yes |
Identification Number: | 10.1029/2021gl092774 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:206413 |