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Record #103444:
- #103444
Main publication details
MARC recordApparent hydraulic conductivities associated with thawing, frost-susceptible soils / P.A. Egginton, L.D. Dyke.
| Title: | Apparent hydraulic conductivities associated with thawing, frost-susceptible soils / P.A. Egginton, L.D. Dyke. |
| Author(s): | Egginton, P. A. Dyke, L. D. |
| Date: | 1990. |
| In: | Permafrost and Periglacial Processes. (1990.), Vol. 1(1) (1990) |
| Abstract: | Tests suggest conductivities increase by one or more orders of magnitude as ice-rich layers are encountered by advancing thawing front. When thaw progresses into ice-poor layers and former ice-rich layers consolidate, permeability decreases. Postulates that, on Arctic slopes, if water enters given slope segment under excess hydraulic head, then consolidation of thawing soil in that segment may be retarded for some time, resulting in retention of macropores formed by thawing ice lenses and elevation of horizontal permeabilities relative to those that may be encountered once soil has consolidated. |
| Notes: | Permafrost and Periglacial Processes. Vol. 1(1) :69-77 (1990). |
| Keywords: | 551.343.7 -- Frost, soil moisture and surface water, effect on movement of. 551.345.2 -- Permafrost, formation and decay. 551.345 -- Permafrost. Cryopedology. 536.421.1 -- Melting. E8 -- Glaciology: frost action and permafrost. |
| SPRI record no.: | 103444 |
LDR 01551naa#a2200000#a#4500 001 SPRI-103444 005 20240416061358.0 007 ta 008 240416s1990####xx#a##|##|###|0||#0|eng#d 035 ## ‡aSPRI-103444 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aEgginton, P. A. 245 10 ‡aApparent hydraulic conductivities associated with thawing, frost-susceptible soils /‡cP.A. Egginton, L.D. Dyke. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1990. 300 ## ‡ap. 69-77 :‡bill., diags., table. 500 ## ‡aPermafrost and Periglacial Processes. Vol. 1(1) :69-77 (1990). 520 3# ‡aTests suggest conductivities increase by one or more orders of magnitude as ice-rich layers are encountered by advancing thawing front. When thaw progresses into ice-poor layers and former ice-rich layers consolidate, permeability decreases. Postulates that, on Arctic slopes, if water enters given slope segment under excess hydraulic head, then consolidation of thawing soil in that segment may be retarded for some time, resulting in retention of macropores formed by thawing ice lenses and elevation of horizontal permeabilities relative to those that may be encountered once soil has consolidated. 650 07 ‡a551.343.7 -- Frost, soil moisture and surface water, effect on movement of.‡2udc 650 07 ‡a551.345.2 -- Permafrost, formation and decay.‡2udc 650 07 ‡a551.345 -- Permafrost. Cryopedology.‡2udc 650 07 ‡a536.421.1 -- Melting.‡2udc 650 07 ‡aE8 -- Glaciology: frost action and permafrost.‡2local 700 1# ‡aDyke, L. D. 773 0# ‡7nnas ‡tPermafrost and Periglacial Processes. ‡gVol. 1(1) (1990) ‡wSPRI-102743 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240416