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Micromorphology of glacial sediments

John Hiemstra Orcid Logo, Emrys R. Phillips

Reference Module in Earth Systems and Environmental Sciences

Swansea University Author: John Hiemstra Orcid Logo

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DOI (Published version): 10.1016/b978-0-323-99931-1.00009-x

Abstract

Since its introduction in the 1980s, micromorphology has proved invaluable in its application to glacial sediments. Particularly where visible exposures are limited, such as in sediment cores, there may be a need for detailed information, which cannot be provided by conventional sedimentological tec...

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Published in: Reference Module in Earth Systems and Environmental Sciences
ISBN: 9780124095489
Published: Elsevier 2023
URI: https://cronfa.swan.ac.uk/Record/cronfa62280
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first_indexed 2023-01-09T11:02:36Z
last_indexed 2023-01-31T04:18:45Z
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spelling 2023-01-30T15:02:12.1417757 v2 62280 2023-01-09 Micromorphology of glacial sediments fa99fa6ac238739f5e92fd88069c4036 0000-0003-3148-0206 John Hiemstra John Hiemstra true false 2023-01-09 SGE Since its introduction in the 1980s, micromorphology has proved invaluable in its application to glacial sediments. Particularly where visible exposures are limited, such as in sediment cores, there may be a need for detailed information, which cannot be provided by conventional sedimentological techniques. Micromorphology entails the qualitative and quantitative study of thin sections under a transmitted-light petrographic microscope. Using relatively low magnifications, undisturbed sediment samples of glacial sediments can be analyzed in both plane- and cross-polarized light. The visual and computer-assisted analyses of texture, micro-structure, micro-fabric and plasmic fabric allows for interpretations in terms of depositional and deformational history, which is often critical for the reliable reconstruction of Quaternary environments based on the preserved glacial sedimentary records. Book chapter Reference Module in Earth Systems and Environmental Sciences Elsevier 9780124095489 Birefringence; Deformation; Deposition; Diamicton; Glacial sedimentary records; Image analysis; Impregnation; Microfabric; Microstructure; Micro-tomography; Plasmic fabric; Shear; Strain; Texture; Thin section 5 1 2023 2023-01-05 10.1016/b978-0-323-99931-1.00009-x COLLEGE NANME Geography COLLEGE CODE SGE Swansea University 2023-01-30T15:02:12.1417757 2023-01-09T10:57:29.7678594 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography John Hiemstra 0000-0003-3148-0206 1 Emrys R. Phillips 2
title Micromorphology of glacial sediments
spellingShingle Micromorphology of glacial sediments
John Hiemstra
title_short Micromorphology of glacial sediments
title_full Micromorphology of glacial sediments
title_fullStr Micromorphology of glacial sediments
title_full_unstemmed Micromorphology of glacial sediments
title_sort Micromorphology of glacial sediments
author_id_str_mv fa99fa6ac238739f5e92fd88069c4036
author_id_fullname_str_mv fa99fa6ac238739f5e92fd88069c4036_***_John Hiemstra
author John Hiemstra
author2 John Hiemstra
Emrys R. Phillips
format Book chapter
container_title Reference Module in Earth Systems and Environmental Sciences
publishDate 2023
institution Swansea University
isbn 9780124095489
doi_str_mv 10.1016/b978-0-323-99931-1.00009-x
publisher Elsevier
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
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description Since its introduction in the 1980s, micromorphology has proved invaluable in its application to glacial sediments. Particularly where visible exposures are limited, such as in sediment cores, there may be a need for detailed information, which cannot be provided by conventional sedimentological techniques. Micromorphology entails the qualitative and quantitative study of thin sections under a transmitted-light petrographic microscope. Using relatively low magnifications, undisturbed sediment samples of glacial sediments can be analyzed in both plane- and cross-polarized light. The visual and computer-assisted analyses of texture, micro-structure, micro-fabric and plasmic fabric allows for interpretations in terms of depositional and deformational history, which is often critical for the reliable reconstruction of Quaternary environments based on the preserved glacial sedimentary records.
published_date 2023-01-05T04:21:46Z
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score 11.013148

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