High-latitude Lake Basal Ages and Origins - link to datafile ...
This dataset is a compilation of 1,207 lake basal ages used to identify spatial and temporal patterns of lake formation across the high northern latitudes. Data was gathered from scientific literature descriptions of lake cores, peat cores underlain by lake sediments, and exposures within the domain...
| Main Authors: | , , , , , |
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| Format: | Dataset |
| Language: | English |
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PANGAEA
2018
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.894737 https://doi.pangaea.de/10.1594/PANGAEA.894737 |
| Summary: | This dataset is a compilation of 1,207 lake basal ages used to identify spatial and temporal patterns of lake formation across the high northern latitudes. Data was gathered from scientific literature descriptions of lake cores, peat cores underlain by lake sediments, and exposures within the domain of glaciation and permafrost extent during the Last Glacial Maximum. We distinguished eight classes of lake origin. Where not indicated by the author, we sought to determine lake origin from lithology, geological history and site descriptions within the text. Though most records (95%) were radiocarbon dated, we included robust dates obtained by a variety of methods including varve counting, photoluminescence, Pb/Cs, Th/U, wiggle matching and tephrochronology. We reported oldest sample ages in the majority of cases, electing not to utilize basal ages derived from age-depth models extrapolated beyond dated levels due to both their high level of uncertainty and differences between methodologies used to construct ... : Supplement to: Brosius, Laura Susan; Walter Anthony, Katey M; Treat, Claire C; Lenz, Josefine; Jones, Miriam C; Grosse, Guido (2021): Spatiotemporal patterns of northern lake formation since the Last Glacial Maximum. Quaternary Science Reviews, 253, 106773 ... |
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