Diatom and stable isotope records of late-Holocene lake ontogeny at Indrepollen, Lofoten, NW Norway
A response to glacio-isostasy and Neoglacial cooling
Bibliographic Data
| ID | 12267240 |
|---|---|
| Authors | Keely Mills (0000-0002-0402-2317, Loughborough University, corresponding author), Anson W Mackay (0000-0002-6328-769X, Environmental Change Research Centre, Department of Geography, Pearson Building, Gower Street, University College London, London WC1E 6BT, UK), Raymond S Bradley (0000-0002-4032-9519, Department of Geosciences, University of Massachusetts, Amherst MA 01003, USA), B Finney (0000-0002-2639-6512, Institute of Marine Science, University of Alaska Fairbanks, Fairbanks AK 99775-7220, USA, Department of Biological Sciences, Idaho State University, Pocatello ID 83209-8007, USA) |
| Year | 2009 |
| Volume | 19 |
| Issue | 2 |
| Pages | 261-271 |
| Publication date | 2009-02-23 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | The Holocene (JOURNAL) |
| Journal identifiers | ISSN: 0959-6836 • E-ISSN: 1477-0911 |
| Publisher | SAGE Publishing (PUBLISHER • US) |
| DOI | 10.1177/0959683608100571 |
| OpenAlex | W2085848656 |
| Language | EN |
| Citations received | 2 |
| References cited | 62 |
Borg Indrepollen is a coastal lake on the island of Vestvågøy, Lofoten, NW Norway. A sedimentary sequence spanning the last 4500 cal. yr BP was analysed for diatom, C/N and stable isotopes (δ 13 C and δ 15 N). The record provides clear evidence of glacio-isostatic rebound in the Lofoten region. Five distinct lithostratigraphic-geochemical zones (I—V) and four major diatom zones (A—D) were identified. The early record (I—III, A—Biii; 4500—550 cal. yr BP) contains coarse sedimentary material and diatoms indicative of more marine conditions. The correlation between the isotopic data (high δ 13 C and low C/N) and trends in the biological data (marine/brackish flora) suggest the marine influence on the Indrepollen basin is a controlling factor of the source of organic material. The latter part of the record (IV, C; 550 cal. yr 550—226) indicates a transitional phase from marine-dominated diatom to brackish taxa and is coincident with a section of microlaminations in the core. The youngest zone (V, D; 226 cal. yr BP—present) is indicative of an isolated basin, with the deposition of fine sediments; freshwater diatom taxa dominate the biological record and δ 13 C are indicative of freshwater conditions. C/N suggests a shift to a terrestrial source of organic matter. The proxies show a transition from full marine conditions, when Indrepollen was a submerged fjord, to more freshwater, lacustrine conditions in the last 200 years. The record of land uplift from Borg Indrepollen mirrors changes in sedimentary records from across Northern Norway and relative sea-level curves for the region
Diatom · Glacial period · Holocene · Interglacial · Marine isotope stage · Paleolimnology · Sedimentary rock · Geological formations and processes · Geology and Paleoclimatology Research · Isotope Analysis in Ecology · Geology · Oceanography · Paleontology
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| Citations per year | 0.13 |
|---|---|
| Citation span | 2010 - 2011 (2) |
| Highly cited | No |