Riedel, Thorsten (2017): Assessing permafrost erosion in the Canadian Beaufort Sea, Herschel Island - a biomarker approach [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.875609
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Herschel Island is the remnant of an ice-push moraine, formed during the farthest advance of the Laurentide Ice Sheet in the late Wisconsin. The island is located in the Canadian Beaufort Sea, in the northwestern part of the Yukon Territory. A marine depression (Herschel Basin), southeastern adjacent to Herschel Island, acts as a sink of organic matter (OM) derived from various sources.
The main objective of this master thesis was to determine the amount of OM, derived from Herschel Island, in the deposits of Herschel Basin. Rapidly increasing mean annual air temperatures (MAAT) in high latitude areas raise awareness of a changing Arctic climate and consequences for the Arctic carbon cycle.
Biomarker analyses of soil and sediment samples from various study sites on and around Herschel Island show that sediments in Herschel Basin are of prevailing terrigenous origin. Approximately 60 % of the OM in the surface sediments of Herschel Basin and the adjacent nearshore area can be assigned to eroded material from Herschel Island. Investigations on a sediment core from the centre of the basin suggest enhanced erosion rates and increased supply by OM from Herschel Island in the upper section of the core.
Results of biomarker analyses of this thesis corroborate a progressing change of the Arctic climate, amplified by positive carbon feedback mechanisms.
Related to:
Riedel, Thorsten (2017): Assessing permafrost erosion in the Canadian Beaufort Sea, Herschel Island - a biomarker approach. Master Thesis, University of Bremen, 76 pp
Coverage:
Median Latitude: 69.549005 * Median Longitude: -139.322135 * South-bound Latitude: 69.491400 * West-bound Longitude: -140.510000 * North-bound Latitude: 69.596000 * East-bound Longitude: -138.867000
Date/Time Start: 2016-04-16T00:00:00 * Date/Time End: 2016-05-02T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
16 datasets
Download Data
Datasets listed in this publication series
- Riedel, T (2017): GDGTs in surface sediments from Herschel Island. https://doi.org/10.1594/PANGAEA.875628
- Riedel, T (2017): Hopane in surface sediments from Herschel Island. https://doi.org/10.1594/PANGAEA.875632
- Riedel, T (2017): n-Alkane in surface sediments from Herschel Island. https://doi.org/10.1594/PANGAEA.875636
- Riedel, T (2017): Total organic carbon in surface sediments from Herschel Island. https://doi.org/10.1594/PANGAEA.875623
- Riedel, T (2017): GDGTs in surface sediments from Komakuk Beach. https://doi.org/10.1594/PANGAEA.875629
- Riedel, T (2017): Hopane in surface sediments from Komakuk Beach. https://doi.org/10.1594/PANGAEA.875633
- Riedel, T (2017): n-Alkane in surface sediments from Komakuk Beach. https://doi.org/10.1594/PANGAEA.875637
- Riedel, T (2017): Total organic carbon in surface sediments from Komakuk Beach. https://doi.org/10.1594/PANGAEA.875624
- Riedel, T (2017): GDGTs in surface sediments off Herschel Island. https://doi.org/10.1594/PANGAEA.875627
- Riedel, T (2017): Hopane in surface sediments off Herschel Island. https://doi.org/10.1594/PANGAEA.875631
- Riedel, T (2017): n-Alkane in surface sediments off Herschel Island. https://doi.org/10.1594/PANGAEA.875635
- Riedel, T (2017): Total organic carbon in surface sediments off Herschel Island. https://doi.org/10.1594/PANGAEA.875621
- Riedel, T (2017): GDGTs of sediment core PG2303-1. https://doi.org/10.1594/PANGAEA.875626
- Riedel, T (2017): Hopane of sediment core PG2303-1. https://doi.org/10.1594/PANGAEA.875630
- Riedel, T (2017): n-Alkane of sediment core PG2303-1. https://doi.org/10.1594/PANGAEA.875634
- Riedel, T (2017): Total organic carbon of sediment core PG2303-1. https://doi.org/10.1594/PANGAEA.875615