Holocene DBD and Ti/LOI timeseries from Lake Hajeren on Svalbard, indicators of past glacier activity ...

• Main Authors: van der Bilt, Willem G M, Bakke, Jostein, Vasskog, Kristian, D'Andrea, William J, Bradley, Raymond S, Olafsdottir, Sædis
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2015
• Subjects: Piston corer; Arctic; Svalbard; Vasskog; glacier
• Online Access: https://dx.doi.org/10.1594/pangaea.857831; https://doi.pangaea.de/10.1594/PANGAEA.857831

The Arctic is warming faster than anywhere else on Earth. Holocene proxy time-series are increasingly used to put this amplified response in perspective by understanding Arctic climate processes beyond the instrumental period. However, available datasets are scarce, unevenly distributed and often of coarse resolution. Glaciers are sensitive recorders of climate shifts and variations in rock-flour production transfer this signal to the lacustrine sediment archives of downstream lakes. Here, we present the first full Holocene record of continuous glacier variability on Svalbard from glacier-fed Lake Hajeren. This reconstruction is based on an undisturbed lake sediment core that covers the entire Holocene and resolves variability on centennial scales owing to 26 dating points. A toolbox of physical, geochemical (XRF) and magnetic proxies in combination with multivariate statistics has allowed us to fingerprint glacier activity in addition to other processes affecting the sediment record. Evidence from ... : Supplement to: van der Bilt, Willem G M; Bakke, Jostein; Vasskog, Kristian; D'Andrea, William J; Bradley, Raymond S; Olafsdottir, Sædis (2015): Reconstruction of glacier variability from lake sediments reveals dynamic Holocene climate in Svalbard. Quaternary Science Reviews, 126, 201-218 ...