It is increasingly important to document past records of hydrologic change in areas that are drought‐prone to better predict the region's future vulnerability to recharge and water supply. Holocene spring‐associated carbonate deposits serve as terrestrial records of water balance that can complement other local, high‐resolution proxies that are moisture‐sensitive. Here we examine two carbonate deposits (one inactive perched tufa site and one active fluvial tufa site) that form from ambient‐temperature freshwater springs, as proxies of their depositional conditions. Radiocarbon (14C) analyses of charcoal fragments from the inactive perched tufa record depositional ages of 6.2 ± 0.06 (2σ) cal ka
The Lofoten and Vesterålen archipelagos are located off the outer coast of northern Norway far from the center of the former Fennoscandian Ice Sheet and near the continental shelf edge. Existing relative sea‐level (RSL) data indicate a pronounced mid‐Holocene transgression and interesting connections with the region's prehistoric human settlement history. Here we present seven new sea‐level index points from isolation basins and five terrestrial limiting points from a coastal sedimentary sequence to refine the region's RSL history. Ingression and isolation contacts in isolation basin sediment cores are identified using sedimentary geochemical data, scanning X‐ray fluorescence profiles and phytoplankton analysis. The ages of these contacts are determined using radiocarbon‐based age models. Our index points range from 11.2 to 1.5k cal a
- NSF-PAR ID:
- 10493988
- Publisher / Repository:
- Wiley Blackwell (John Wiley & Sons)
- Date Published:
- Journal Name:
- Journal of Quaternary Science
- ISSN:
- 0267-8179
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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