Incorporating lateral variability and extent of paleosols into proxy uncertainty
Incorporating lateral variability and extent of paleosols into proxy uncertainty
复制标题
将古土壤的横向变化和范围纳入代理不确定性
DOI:
10.1016/j.palaeo.2021.110641
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Sheldon, Nathan D.
中科院分区:
文献类型:
--
作者:
Dzombak, Rebecca M.;Midttun, Nikolas C.;Stein, Rebekah A.;Sheldon, Nathan D.
Paleosols (fossil soils) are valuable records of terrestrial climate and environments, and paleosol-based proxies are commonly used to reconstruct past climates and ecosystems. Results from relatively small outcrops or transects or from single vertical sections are frequently scaled up to represent basin-scale processes and conditions, and reconstructions are relied on for temporal changes in those basins. However, uncertainty arising from limited outcrop extent is not currently considered in the standard application of paleosol-based proxies. To explore uncertainty arising from lateral paleosol heterogeneity, we performed a random subsampling analysis on a newly-collected 2.9 km paleosol transect from SW Wyoming, along with two previously-published paleosols. We demonstrate the importance of sampling multiple paleosol profiles, considering lateral geochemical variability, and focusing on relative rather than absolute changes when outcrop-based uncertainty may require it.
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影响因子:
5.8
作者:
L. Nordt;S. Driese
通讯作者:
L. Nordt;S. Driese
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
N. Sheldon;R. Mitchell;Rebecca M. Dzombak
通讯作者:
Rebecca M. Dzombak
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
S. Driese;E. Simpson;K. Eriksson
通讯作者:
K. Eriksson
影响因子:
1.7
作者:
N. Sheldon
通讯作者:
N. Sheldon
DOI:
10.1007/978-90-481-8643-3_7
发表时间:
2011
期刊:
--
影响因子:
--
作者:
R. Gastaldo;Timothy Michael Demko
通讯作者:
R. Gastaldo;Timothy Michael Demko