Soils of the - Agriculture and Agri-Food Canada

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FG
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Definition 2
Colluvial : Materials that have reached
their present position by direct, gravity -
induced movement.
Eolian : Materials transported an d
deposited by wind action .
Fluvial : Materials transported an d
deposited by rivers and streams .
Fluvioglacial : Fluvial materials that have
been deposited either directly in front of ,
or in contact with, glacier ice .
Ice : Areas of snow and ice where
evidence of active movement is present .
Lacustrine : Sediments that have settle d
from suspension in standing fresh wate r
or have accumulated in the margins
through wave action .
Morainal : Materials transported
beneath, beside, on, within or in front o f
a glacier and deposited directly fro m
the glacier.
0 Organic : Materials resulting from
vegetative growth, decay an d
accumulation ; rate of accumulatio n
exceeds that of decay.
R Bedrock : Outcrop, and rock covered b y
a thin mantle (less than 10 cm thick) of
unconsolidated mineral and/or organi c
materials .
W
W e
Marine : Sediments that have settle d
from suspension in salt or brackis h
water bodies or that have accumulate d
at their margins through shorelin e
processes .
Glaciomarine : Sediments of glacia l
origin, laid down in a marin e
environment in close proximity to glacier
ice .
SURFACE EXPRESSIO N
Definitio n
Blanket : A mantle of unconsolidate d
materials thicker than 1 m .
Fan : A fan-shaped form possessing a
perceptible gradient from apex to toe .
Level : A flat or gently sloping surfac e
not broken by marked elevations o r
depressions .
Veneer: Unconsolidated material s
between 10 cm and 1 m thick ; if n o
information about the underlyin g
stratigraphic unit is supplied, it i s
assumed the veneer overlies bedrock .
COMPOSITE UNITS
Composite units are employed when the individual
terrain units in a map polygon cannot be delimite d
individually at the scale of mapping . The components
are indicated in decreasing order of abundance . Th e
symbolization is as follows :
/ the component in front of the symbol is mor e
abundant than the one that follows .
// the component in front of the symbol i s
considerably more abundant than th e
component that follows .
' Classification modified from Environment and Land Use Committee Secretariat, 1976 .
2 The deposits are more adequately described in the pages under Surficial Geologic Deposits .
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Figure 2 . Generalized surficial deposits map of the Coast Mountains and Sunshine Coast portion of the Langley-Vancouver map area .