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- 66 - Bm- 48 to 76 cm, dark grayish brown (l0YR 4/2, moist), loam ; fine subangular blocky ; slightly sticky, slightly plastic ; friable when moist, slightly hard when dry ; medium acid ; abrupt, smooth boundary . R- 76+ cm, quartzite bedrock . De~raded Eutric Brunisol These soils have the general characteristics of Eutric Brunisols that have an Ae and a Bm horizon . The Bm horizon may contain some illuvial clay or some sesquioxides but not enough to meet the requirements of a Bt or Bf horizon . These soils have developed on medium-textured alluvium, sandy aeolian deposits and glacio-fluvial and glacio-lacustrine beach deposits . Degraded Eutric Brunisol developed on a A representative profile of fine sandy aeolian deposit is described as follows : Profile T50 Degraded Eutric Brunisol (Appendix I : Table 15 ; Plate 7B) L-F- 2 to 0 cm, very dark brown (l0YR 2/2, moist), forest litter of aspen leaves and twigs ; neutral ; abrupt, smooth boundary . Ae- 0 to 12 cm, light gray (l0YR 6/1, moist), silt loam ; single grained ; non-sticky, non-plastic ; loose when moist, loose when dry ; extremely acid ; clear, wavy boundary . Bml- 12 to 61 cm, brown (l0YR 4/3, moist), loamy sand ; singlegrained ; non-sticky, non-plastic ; loose when moist, loose when dry ; strongly acid ; gradual, wavy boundary . Bm2- 61 to 107 cm, dark yellowish brown (l0YR 4/4, moist), sand ; single-grained ; non-sticky, non-plastic ; loose when moist, loose when dry ; medium acid ; clear, wavy boundary C- 107 to 150 cm, olive gray (5Y 4/2, moist), sand ; singlegrained ; non-sticky, non-plastic ; loose when moist, loose when dry ; mildly alkaline ; moderately calcareous .
cm 100r Vegetation : Lichen -Voccinium I Bare Soil Soil Cryic Orthic Dystric Brunisol * a H N 80 60 40 20 cm 120 100 80 60 40 20 10 20 30 40 50 60 70 80 90 100 cm Figure 10 . Cross-section of a non-sorted circle (site T30) and hummocks (site R166) . Note that soils denoted by an asterisk (*) are affected by cryoturbation .
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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
Page 8 and 9:
Page Plate 6 A . Non-sorted stripes
Page 10 and 11:
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
Page 23 and 24: Except under shallow lakes and pond
Page 25 and 26: soils are found on all poorly drain
Page 27 and 28: Table 3 Summary of Description of Z
Page 29 and 30: 7 . DISTRIBUTION OF SOILS The distr
Page 31 and 32: 1 Table 4 (cont'd) Map Symbol+ Name
Page 33 and 34: I Table 4 (cont'd) Map Name Parent
Page 35 and 36: - 27 - 8 . DESCRIPTION OF SOILS 8 .
Page 37 and 38: - 29 - C . Fen Peat This type of pe
Page 39 and 40: - 31 - Table 5 . Rate of Accumulati
Page 41 and 42: - 3 3 - tiers (see The System of So
Page 43 and 44: - 3 5 - Profile T5A Cryic Mesisol (
Page 45 and 46: - 37 - PATTERNED FEN Landform ô N
Page 47 and 48: _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: - 6 5 - Profile R 166 Cryic Orthic
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 and 100: _ 91 _ 8 .2 .2 . Ice Content of Min
Page 101 and 102: - 9 3 - Another site was sampled on
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 123 and 124: Appendix I : Table 9 . Analysis of
Page 125 and 126:
Appendix I : Table It . Analysis of
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Appendix I : Table 13 . Analysis of
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Appendix I : Table 21, Analysis of
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Page 139 and 140:
Page 141 and 142:
Appendix II . Analysis of Water Sam
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- 136 - Appendix III . (con't .) Si
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