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Record #111894:
- #111894
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MARC recordPermafrost and thermal interfaces from Norman Wells pipeline ditchwall logs / J.F. Nixon, R. Saunders, J. Smith.
| Title: | Permafrost and thermal interfaces from Norman Wells pipeline ditchwall logs / J.F. Nixon, R. Saunders, J. Smith. |
| Author(s): | Nixon, J. F. Saunders, R. Smith, J. |
| Date: | 1991. |
| In: | Canadian Geotechnical Journal. (1991.), Vol. 28(5) (1991) |
| Abstract: | Ditch was 1.2 m deep and extended 869 km through discontinuous permafrost. During construction, it was logged every 50 to 100 m, depending on changing conditions. Every change from frozen to unfrozen soil was logged, based on visual criteria. Data file has now been compiled containing all this information. Percentage of frozen ground varies from 95 to 16%, from north to south. Number of thermal interfaces varies between 1 and 3 per kilometre, with highest number occurring in organic terrain units in southern discontinuous zone. Results compared with those of electrical geophysical surveys, published in advance. Reasonable agreement, though surveys have overestimated thermal interfaces in some areas. |
| Notes: | Canadian Geotechnical Journal. Vol. 28(5) :738-745 (1991). |
| Keywords: | 624.139.2 -- Frozen ground, effects. 624.139.55 -- Frozen ground, disturbance by engineering works. 622.323 -- Petroleum, exploitation of resources. 621.644 -- Pipelines. 551.34 -- Geocryology. Frozen ground. 551.345.1 -- Permafrost, surveys. 551.345.3 -- Permafrost, composition and structure. Ice wedges. E8 -- Glaciology: frost action and permafrost. (*41) -- Canada. (*440) -- Northwest Territories. (*470) -- Mackenzie District. (*428) -- Alberta. |
| SPRI record no.: | 111894 |
LDR 01989naa#a2200000#a#4500 001 SPRI-111894 005 20240419084310.0 007 ta 008 240419s1991####xx#ab#|##|###|0||#0|eng#d 035 ## ‡aSPRI-111894 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aNixon, J. F. 245 10 ‡aPermafrost and thermal interfaces from Norman Wells pipeline ditchwall logs /‡cJ.F. Nixon, R. Saunders, J. Smith. 260 ## ‡a[S.l.] :‡b[s.n.],‡c1991. 300 ## ‡ap. 738-745 :‡bdiags., table, map. 500 ## ‡aCanadian Geotechnical Journal. Vol. 28(5) :738-745 (1991). 520 3# ‡aDitch was 1.2 m deep and extended 869 km through discontinuous permafrost. During construction, it was logged every 50 to 100 m, depending on changing conditions. Every change from frozen to unfrozen soil was logged, based on visual criteria. Data file has now been compiled containing all this information. Percentage of frozen ground varies from 95 to 16%, from north to south. Number of thermal interfaces varies between 1 and 3 per kilometre, with highest number occurring in organic terrain units in southern discontinuous zone. Results compared with those of electrical geophysical surveys, published in advance. Reasonable agreement, though surveys have overestimated thermal interfaces in some areas. 650 07 ‡a624.139.2 -- Frozen ground, effects.‡2udc 650 07 ‡a624.139.55 -- Frozen ground, disturbance by engineering works.‡2udc 650 07 ‡a622.323 -- Petroleum, exploitation of resources.‡2udc 650 07 ‡a621.644 -- Pipelines.‡2udc 650 07 ‡a551.34 -- Geocryology. Frozen ground.‡2udc 650 07 ‡a551.345.1 -- Permafrost, surveys.‡2udc 650 07 ‡a551.345.3 -- Permafrost, composition and structure. Ice wedges.‡2udc 650 07 ‡aE8 -- Glaciology: frost action and permafrost.‡2local 651 #7 ‡a(*41) -- Canada.‡2udc 651 #7 ‡a(*440) -- Northwest Territories.‡2udc 651 #7 ‡a(*470) -- Mackenzie District.‡2udc 651 #7 ‡a(*428) -- Alberta.‡2udc 700 1# ‡aSaunders, R. 700 1# ‡aSmith, J. 773 0# ‡7nnas ‡tCanadian Geotechnical Journal. ‡gVol. 28(5) (1991) ‡wSPRI-38252 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240419