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_ 9 2 _ Plate 12 A . Vein ice in fine textured till at a depth of 55 cm . content of this depth was found to be 58 percent on basis . Southwest side of the Wrigley Sheet . The ice a weight B . Perennially frozen fine textured till and gravel deposits . Fast mountain rivers undercut these frozen materials, thus contributing considerably to river bank erosion . Dahadinni River area .
- 9 3 - Another site was sampled on an active flow slide in the Wrigley area along the Wrigley River . Here, the ice content was found to be 61 percent on a weight basis . Great amounts of ground ice in the form of ice wedges and massive ground ice were encountered in the area north of Inuvik and are shown on Plates 13A and 13B .
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SOILS OF THE MACKENZIE RIVER AREA b
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TABLE OF CONTENTS 1 . SUMMARY . . .
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TABLES Table 1 Page Mean monthly te
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Page Plate 6 A . Non-sorted stripes
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1 . SUMMARY Soils were examined in
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soils . Soils were classified accor
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4 . STUDY AREA 4 .1 . Location The
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Be aufort 70 135- Sea 65 - 135- -ST
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- 10 - (Brown, 1965) having an insi
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6 . CLIMATICALLY SIGNIFICANT ECOLOG
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Except under shallow lakes and pond
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soils are found on all poorly drain
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Table 3 Summary of Description of Z
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7 . DISTRIBUTION OF SOILS The distr
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1 Table 4 (cont'd) Map Symbol+ Name
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I Table 4 (cont'd) Map Name Parent
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- 27 - 8 . DESCRIPTION OF SOILS 8 .
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- 29 - C . Fen Peat This type of pe
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- 31 - Table 5 . Rate of Accumulati
Page 41 and 42:
- 3 3 - tiers (see The System of So
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- 3 5 - Profile T5A Cryic Mesisol (
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- 37 - PATTERNED FEN Landform ô N
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_3g_ Plate 2 A . Peat polygons, sit
Page 49 and 50: A . Vegetation on a peat polygon, s
Page 51 and 52: - 4 3 - content, especially the Ca
Page 53 and 54: - 4 5 - Ice Content % On A Volume B
Page 55 and 56: - 4 7 - crystals and thin vein ice
Page 57 and 58: - 4 9 - Collapse Scar I Peat Platea
Page 59 and 60: Vegetation : Soil Landform= Black S
Page 61 and 62: -53- the other hand, the peat occur
Page 63 and 64: 40 A . Core sample of perennially f
Page 65 and 66: - 57- ice lenses and vein ice up to
Page 67 and 68: - 59- Bt- 10 to 23 cm, dark yellowi
Page 69 and 70: moderately sloping topography ; on
Page 71 and 72: - 6 3 - plains, glacio-fluvial plai
Page 73 and 74: - 6 5 - Profile R 166 Cryic Orthic
Page 75 and 76: cm 100r Vegetation : Lichen -Voccin
Page 77 and 78: - 69- Alpine Eutric Brunisol These
Page 79 and 80: Vegetation Ericaceous - Lichen - Mo
Page 81 and 82: - 7 3 - expressed (Ae) eluvial hori
Page 83 and 84: - 75 - Profile ZT16 Cryic Orthic Dy
Page 85 and 86: Vegetation Lichen - Voccinium - Car
Page 87 and 88: _ 79 _ Plate 9 A . Cryoturbed Cryic
Page 89 and 90: Topography : Brunisols developed on
Page 91 and 92: - 83 - C . rangiferina), feather mo
Page 93 and 94: - 85- air voids due to frost action
Page 95 and 96: . -87- Profile B70B Lithic Orthic R
Page 97 and 98: - 89- Rego Gleysol These soils have
Page 99: _ 91 _ 8 .2 .2 . Ice Content of Min
Page 103 and 104: -95- The chemical composition of th
Page 105 and 106: - 9 7 - physical and chemical chara
Page 107 and 108: - 9 9 - 10 . IMPLICATIONS AND RECOM
Page 109 and 110: c . Very little information is avai
Page 111 and 112: - 103 - 11 . REFERENCES 1 . Atkinso
Page 113 and 114: - 105 - 24 . Pounder, E .R . 1965 .
Page 115 and 116: Appendix I : Table 1 . Analysis of
Page 117 and 118: Appendix I " Table 3 . Analysis of
Page 119 and 120: I r N Appendix I : Table 5 . Analys
Page 121 and 122: Appendix I " Table 7 . Analysis of
Page 125 and 126: Appendix I : Table It . Analysis of
Page 135 and 136: Appendix I : Table 21, Analysis of
Page 141 and 142: Appendix II . Analysis of Water Sam
Page 143: - 136 - Appendix III . (con't .) Si
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