Mýrdalsjökull's forefields under the microscope. The micromorphology of meltout and subglacial tills

Jaap J. M. van der Meer; Simon J. Carr; Kurt H. Kjær

doi:10.1016/S1571-0866(09)01310-4

Mýrdalsjökull's forefields under the microscope. The micromorphology of meltout and subglacial tills

Jaap J. M. van der Meer, Simon J. Carr, Kurt H. Kjær

8 Citations (Scopus)

Abstract

Samples for micromorphological analyses were collected in the forefields of three Mýrdalsjökull outlet glaciers and lobes. Samples represent supraglacial meltout deposits, subglacial tills and related water escape structures (WES) and lacustrine/pond deposits. Micromorphology revealed that the meltout tills possess a distinct suite of microstructures, most notably coatings around grains. Together with the particular porosity, meltout deposits can be clearly distinguished from subglacial tills, even from the strongly dilated Mýrdalsjökull tills. WES and lacustrine deposits possess overlapping structures, but porosity and especially plasmic fabric help in distinguishing the groups and separate them from meltout and subglacial sediments.

Original language	English
Title of host publication	The Mýrdalsjökull Ice Cap, Iceland. Glacial processes, sediments and landforms on an active volcano
Editors	Anders Schomacker, Johannes Krüger, Kurt H. Kjær
Number of pages	22
Publisher	Elsevier
Publication date	2010
Pages	159-180
Chapter	10
ISBN (Print)	978-0-444-53045-5
DOIs	https://doi.org/10.1016/S1571-0866(09)01310-4
Publication status	Published - 2010

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van der Meer, J. J. M., Carr, S. J., & Kjær, K. H. (2010). Mýrdalsjökull's forefields under the microscope. The micromorphology of meltout and subglacial tills. In A. Schomacker, J. Krüger, & K. H. Kjær (Eds.), The Mýrdalsjökull Ice Cap, Iceland. Glacial processes, sediments and landforms on an active volcano (pp. 159-180). Elsevier. https://doi.org/10.1016/S1571-0866(09)01310-4

Mýrdalsjökull's forefields under the microscope. The micromorphology of meltout and subglacial tills. / van der Meer, Jaap J. M.; Carr, Simon J.; Kjær, Kurt H.

The Mýrdalsjökull Ice Cap, Iceland. Glacial processes, sediments and landforms on an active volcano. ed. / Anders Schomacker; Johannes Krüger; Kurt H. Kjær. Elsevier, 2010. p. 159-180.

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

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AB - Samples for micromorphological analyses were collected in the forefields of three Mýrdalsjökull outlet glaciers and lobes. Samples represent supraglacial meltout deposits, subglacial tills and related water escape structures (WES) and lacustrine/pond deposits. Micromorphology revealed that the meltout tills possess a distinct suite of microstructures, most notably coatings around grains. Together with the particular porosity, meltout deposits can be clearly distinguished from subglacial tills, even from the strongly dilated Mýrdalsjökull tills. WES and lacustrine deposits possess overlapping structures, but porosity and especially plasmic fabric help in distinguishing the groups and separate them from meltout and subglacial sediments.

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PB - Elsevier

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Mýrdalsjökull's forefields under the microscope. The micromorphology of meltout and subglacial tills

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