Ross Sea Region Soil Sites
274000
274
3-Jan-1970
IBC, GGC
Scott Glacier region, southern Trans-antarctic Mountains, on the West side of the Robert Scott Glacier, about 40km from the coast
Soil weathering examination
Mount Goodale
CS Lscp
No
-153.0670
-85.8500
85deg 51.0'S
153deg 4.0'E
cf. Notes for DESCR below
5
W
1,200
The local rocks are medium to fine grained granite; thin patchy till overlies bedrock at higher altitude but the till cover is more continuous at lower altitude with several |
distinctive moraine loops |
No water observed but soils are moist in patches after recent snowfall
-25
Coastal Mountain
Granitic till with occasional dolerite and other rock types
Nil observed
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
cf. Notes for SURFWEA below
Nil
20-0cm
101
surface boulder
102
rounded
103
distinct staining on the upper surface and the edges
104
274a 0-0.5cm
201
sandy tabular granular and pebble gravel exfoliate
202
continuous thin salt incrustation
203
sharp boundary,
274b 0.5-5cm
301
light yellowish brown (2.5Y 6/4) sandy pebble gravel
302
weakly cohesive
303
weakly developed vesicular structure
304
rock particles subangular and weakly stained
305
some partly disaggregating
306
distinct boundary,
274c 5-15cm
401
light yellowish brown (2.5Y 6/4) sandy to silty gravel
402
loose
403
scattered salt flecks especially around pebbles
404
rock particles subangular to subrounded and unstained
405
indistinct boundary,
274d 15-55cm
501
light yellowish brown (2.5Y 6/4) sandy to silty bouldery gravel
502
loose
503
rock particles subangular to angular and unstained, on sandy to silty bouldery gravel
Yes
a,b,c,d
Dry frozen
55
3
(>55cm)
Descr
At the southern end of Taylor Ridge, at the upper (eastern end) of a westward sloping terrain comprising a sequence of glacial retreat surfaces of differing age; |
an intermediate shoulder with a broad flattish surface; this site is beneath a 0.5m x 0.3m granitic boulder with an underlying salt layer |
Surfwea
Some cavernous weathering of boulders and exposed local rock outcrops; surface boulders generally well rounded with weathering through exfoliation; darker |
rocks fragmenting through thermal disaggregation; staining generally on upper sides of boulders only |
Soluble Salt |
Concentration |
27400001
27400002
63.00
27400003
59.00
27400004
60.00
27400001
thenardite/gypsum
27400002
27400003
27400004
27400001
27400002
27400003
27400004
12-Dec-2005
Page 231 of 896
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