Variability in Bioavailable 87 Sr/ 86 Sr in the North American Midcontinent
Dados Bibliográficos
| ID | 7936795 |
|---|---|
| Autores | Chris Widga (0000-0002-2961-0078), J D Walker (0000-0002-3706-2729), Andrew R Boehm (0000-0002-4640-9966, University of Oregon, autor correspondente), Andrew Boehm |
| Ano | 2017 |
| Volume | 3 |
| Fascículo | 1 |
| Páginas | 4 |
| Data de publicação | 2017-06-07 |
| Peer Reviewed | Sim |
| Open Access | Sim |
| Tipo | ARTICLE |
| Periódico | Open Quaternary (JOURNAL) |
| Identificadores do periódico | ISSN: 2055-298X • E-ISSN: 2055-298X |
| Editora | Ubiquity Press, Ltd. (PUBLISHER) |
| DOI | 10.5334/oq.32 |
| OpenAlex | W2622215658 |
| Idioma | EN |
| Citações recebidas | 12 |
| Referências citadas | 30 |
Strontium (Sr) isotope tracers are useful for understanding provenance and mobility in biological materials across multiple disciplines. However, the impact of these techniques is highly dependent on the construction of appropriate comparative baselines (i.e., an isoscape). We present the results of a systematic survey of87Sr/86Sr values from grasses in the North American Midcontinent with a particular emphasis on sedimentary systems. Although87Sr/86Sr values are highly variable across the region, the Sr isoscape shows multi-scalar patterns that are dependent on local-to-regional trends in surficial geology. High values are found in bedrock-dominated areas such as the Black Hills (SD) and Ozark Uplift (MO), or formerly glaciated areas where surface deposits are dominated by ice-transported Precambrian clasts. The lowest values are found in river valleys that incorporate eroded Neogene sediments into terrace formation. Intermediate values are found in upland loess and alluvial deposits which blanket much of the study area. We demonstrate trends in large-scale variability of the Midcontinent’s87Sr/86Sr isoscape and suggest that future refinement focus on sub-regional trends in Sr isotope variability
Alluvium · Bedrock · Clastic rock · Earth science · Geochemistry · Geography · Geomorphology · Isotopes of strontium · Loess · Physical geography · Precambrian · Provenance · Sedimentary rock · Strontium · Chemistry · Geology and Paleoclimatology Research · Isotope Analysis in Ecology · Paleontology and Stratigraphy of Fossils · Geology
Life histories and niche dynamics in late Quaternary proboscideans from midwestern North America
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Strontium isotope evidence for migration in late Pleistocene Rangifer
| Obras citantes distintas | 12 |
|---|---|
| Citações por ano | 1,5 |
| Intervalo de citações | 2018 - 2025 (8) |
| Velocidade de citação | recent |
| Altamente citado | Não |
| Tipos de citação | Neutras: 11 |