Absence of frost sorting at an experimental site, green lakes valley, colorado front range, usa
Abstract A field experiment at 3,350 m.a.s.l. in the Colorado Alpine was initiated in 1959, to investigate frost sorting. Four plots, of varying grain‐size composition, were used to test whether sorting by freeze‐thaw activity could be related to the percentage of soil particles finer than 0.074 mm...
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crwiley:10.1002/ppp.3430020206 2024-06-02T08:13:09+00:00 Absence of frost sorting at an experimental site, green lakes valley, colorado front range, usa Warburton, Jeff 1991 http://dx.doi.org/10.1002/ppp.3430020206 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430020206 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430020206 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 2, issue 2, page 113-122 ISSN 1045-6740 1099-1530 journal-article 1991 crwiley https://doi.org/10.1002/ppp.3430020206 2024-05-03T11:57:41Z Abstract A field experiment at 3,350 m.a.s.l. in the Colorado Alpine was initiated in 1959, to investigate frost sorting. Four plots, of varying grain‐size composition, were used to test whether sorting by freeze‐thaw activity could be related to the percentage of soil particles finer than 0.074 mm and whether there was a characteristic grain size at which lateral and/or vertical sorting could be expected. Re‐examination of the site in 1984 indicated that macrofabrics, microfabrics, soil physical properties and surface clast distributions showed no evidence of large‐scale sorting. Critical conditions for the onset of pore water convection, as a mechanism for the initiation of sorting, could occur in only two of the test soils (A and B), and permeability in the third (C) was too low to allow instability. Soil convection is also unlikely, owing to the coarse, freely drained nature of the test soils. Article in Journal/Newspaper Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 2 2 113 122 |
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English |
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Abstract A field experiment at 3,350 m.a.s.l. in the Colorado Alpine was initiated in 1959, to investigate frost sorting. Four plots, of varying grain‐size composition, were used to test whether sorting by freeze‐thaw activity could be related to the percentage of soil particles finer than 0.074 mm and whether there was a characteristic grain size at which lateral and/or vertical sorting could be expected. Re‐examination of the site in 1984 indicated that macrofabrics, microfabrics, soil physical properties and surface clast distributions showed no evidence of large‐scale sorting. Critical conditions for the onset of pore water convection, as a mechanism for the initiation of sorting, could occur in only two of the test soils (A and B), and permeability in the third (C) was too low to allow instability. Soil convection is also unlikely, owing to the coarse, freely drained nature of the test soils. |
format |
Article in Journal/Newspaper |
author |
Warburton, Jeff |
spellingShingle |
Warburton, Jeff Absence of frost sorting at an experimental site, green lakes valley, colorado front range, usa |
author_facet |
Warburton, Jeff |
author_sort |
Warburton, Jeff |
title |
Absence of frost sorting at an experimental site, green lakes valley, colorado front range, usa |
title_short |
Absence of frost sorting at an experimental site, green lakes valley, colorado front range, usa |
title_full |
Absence of frost sorting at an experimental site, green lakes valley, colorado front range, usa |
title_fullStr |
Absence of frost sorting at an experimental site, green lakes valley, colorado front range, usa |
title_full_unstemmed |
Absence of frost sorting at an experimental site, green lakes valley, colorado front range, usa |
title_sort |
absence of frost sorting at an experimental site, green lakes valley, colorado front range, usa |
publisher |
Wiley |
publishDate |
1991 |
url |
http://dx.doi.org/10.1002/ppp.3430020206 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430020206 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430020206 |
genre |
Permafrost and Periglacial Processes |
genre_facet |
Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 2, issue 2, page 113-122 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.3430020206 |
container_title |
Permafrost and Periglacial Processes |
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2 |
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2 |
container_start_page |
113 |
op_container_end_page |
122 |
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1800759821757054976 |