Ross Sea Region Soil Sites
72000
72
6-Dec-1964
IBC, GGC
Shackleton Glacier, Queen Maud Mountains, on hill slopes on the north side of McGregor Glacier
Soil characterisation
USGS 1:250 000 1968; Liv Glacier SV 1-10/5
B&W & CS Pro & Lscp
No
174.4330
-85.1000
85deg 6.0'S
-174deg -26.0'E
Crilly Hill on the North side of McGregor Glacier; on the upper part and West side of a broad convex sloping till covered ridge
7
SW
1,900
Low hills on the North side of McGregor Glacier are mainly Beacon Group rocks covered with bouldery dolerite and sandstone till
(7o)
Xerous; some extensive snow patches; 2cm of recent snow covers the soil and profile surface |
but only slight thawing and moistening of the soil surface had occurred in places |
-30
Central mountain
Dolerite and sandstone till with much loose sandy/silty fine material
Nil observed
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
cf. Notes for SURFWEA below
Nil
72 8-0cm
101
surface boulders, cobbles and pebbles
102
subrounded
103
moderately to strongly stained
104
moderate exfoliation and ventifaction
105
some salts beneath stones,
72a 0-13cm
201
brownish yellow (10YR 6/6) bouldery sandy gravel
202
weakly cohesive with weakly developed vesicular structure
203
a few small salt flecks
204
larger rock particles subangular and weakly stained but some smaller particles strongly altered
205
indistinct boundary,
72b 13-25cm
301
yellow (10YR 7/6) bouldery sandy gravel
302
loose
303
white salts diffused through the horizon
304
rock particles subangular to angular and weakly stained
305
indistinct boundary,
72c 25-33cm
401
yellow (10YR 7/6) bouldery sandy gravel
402
weakly cohesive
403
white salts common and diffused through the horizon
404
rock particles subangular to angular and unstained
405
distinct boundary,
72d 33-70cm
501
pale yellow (2.5Y 7/4) bouldery silty sand
502
loose
503
rock particles subangular and unstained
504
sharp boundary, on frozen ground
Yes
a,b,c,d
Dry frozen over hard ice-cemented
70
4
(70cm)
Surfwea
A distinct pavement comprising rounded, stained and exfoliating dolerite cobbles is formed; moderately ventiform; surface stability is indicated by parts of |
boulders above ground surface showing distinct weathering and rounding while parts below are angular and fresh |
Soluble Salt |
Concentration |
7200001
72a
0-13cm
0
13
none
7200002
72b
13-25cm
13
25
none
7200003
72c
25-33cm
25
33
none
7200004
72d
33-70cm
33
70
none
12-Dec-2005
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