Ross Sea Region Soil Sites
557000
557
21-Jan-1988
IBC, GGC
Royal Society Range; Transantarctic Mountains
Soil weathering examination
Ross Island & Vicinity, Antarctica, 1:250 000 US Geological Survey, 1986
CS Pro & Lscp
No
163.6830
-78.1917
78deg 11.5'S
-163deg -41.0'E
Walcott Bay, at the northern end of Walcott Bay in a dry gully; a section on the north side of the gully where stratified sediments are exposed
80
SW
300
cf. Notes for GEOLAND below
(80o)
Oceanic subxerous; the site is currently dry but probably receives occasional water flows |
from snow thaw |
-21
Coastal Antarctic
Stratified sands and brown sediment, possibly altered ash deposits and ice-marginal
Moss patches in damp nearby hollows
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
The section is steep and the dry gully has probably been eroded by periodic high water flows
Nil
557a 0-80cm
101
pale brown (10YR 6/3) stony coarse sand
102
firm
103
breaking to moderately cohesive
104
many fine distinct yellowish brown finely crystalline 'mottled' patches or inclusions, distinct boundary,
557b 80-125cm
201
very pale brown (10YR 7/3) granular sand
202
very firm
203
weakly stratified breaking to coarse block like structure
204
some yellowish brown lapilli like soft inclusions with a weak crystalline structure
205
sharp boundary
206
557c 125-155cm
301
light yellowish brown (10YR 6/4) sandy gravel
302
moderately firm
303
weakly laminated
304
rock particles mainly subangular and unweathered
305
distinct boundary,
557d 155-205cm
401
very pale brown to yellow (10YR 7/4 - 8/6) sandy silt
402
firmly cohesive breaking to loose amorphous powdery sandy silt
403
fine material with distinct but weakly developed crystalline structure
404
sharp boundary, on weakly laminated sandy gravel
Yes
a,b,c,d
0
Soluble Salt |
Concentration |
55700001
36.90
44.60
8.20
2.60
3.10
3.90
0.40
0.20
55700002
22.40
19.40
21.60
12.90
8.70
12.50
2.20
0.30
55700003
31.70
16.70
8.20
7.70
16.20
16.70
2.60
0.20
55700004
30.20
24.40
15.00
8.50
10.10
9.40
2.30
0.20
55700001
10.00
0.18
1.50
1.55
0.04
0.40
0.07
55700002
9.20
0.95
6.00
1.00
1.10
0.75
2.80
1.80
0.06
55700003
9.40
0.72
4.40
0.40
0.20
1.70
1.40
0.06
55700004
10.00
0.36
2.50
0.03
0.02
0.30
0.04
55700001
2
35
63
55700002
3
2
4
42
5
41
3
55700003
11
16
36
34
3
55700004
3
1
6
50
37
3
12-Dec-2005
Page 515 of 896
557