Abstract
Brúarjökull is a surging outlet lobe of Vatnajökull in SE Iceland. Geological evidence indicates that during quiescent phases, water drainage takes place in ice-walled and ice-roofed channels. As the glacier retreats, the courses of these channels are represented by eskers. Eskers which were englacial prior to surges become deformed during a surge. The deformation of eskers reflects strong longitudinal compression of the ice in the terminal zone. The wavelength of one of the compressed eskers indicates that ice in a 4 km wide margin was compressed by 50% of its original length. Compressed, or concertina eskers, date from the 1963–1964 and the 1890 surges of Brúarjökull. They have not been found from the 1810 surge, indicating that they may not survive if overrun by subsequent surges.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
