Pore close-off regions observed in polar firn/ice core samples (abstract)
The transformation of snow and firn to ice is defined by the acquisition of "zero permeability" and takes place at a density of about 0.8g/(cm)^3. The observation of depth intervals for the transformation are important for understanding age difference between air-bubble and ice matrices. A...
| Main Authors: | , , , |
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| Format: | Report |
| Language: | English |
| Published: |
Faculty of Science, Toyama University
1993
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| Subjects: | |
| Online Access: | https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3812 http://id.nii.ac.jp/1291/00003812/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3812&item_no=1&attribute_id=18&file_no=1 |
| Summary: | The transformation of snow and firn to ice is defined by the acquisition of "zero permeability" and takes place at a density of about 0.8g/(cm)^3. The observation of depth intervals for the transformation are important for understanding age difference between air-bubble and ice matrices. A qualitative measure of permeability was obtained by using a continuous air-suction system which was applied to a microtomed plane of each core sample. With this experimental method, each data point was resolved in 1.6cm increments. Core samples were prepared from the G6 (73 |
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