Ross Sea Region Soil Sites
584000
584
24-Jan-1990
IBC, GGGC, MRB
Marble Point region, western McMurdo Sound just east of the Wilson Piedmont Glacier, between Marble Point and Gneiss Point
Permafrost and soil moisture investigation
Marble Point Quadrangle, US Geological Survey, 1975
CS Pro & Lscp
Yes
163.6950
-77.4200
77deg 25.20'S
-163deg -41.70'E
About 150m northeast of the old Marble Point camp site; a largely boulder free knoll
4
W
65
cf. Notes for GEOLAND below
Oceanic subxerous, some soil moistening from snow melt
-18
Coastal Antarctic
Marble/gneiss till over gneissic bedrock; upper horizons pale but lower horizons somewhat browner, perhaps related to bedrock weathering
None observed
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
Some oxide staining on surface gneissic boulders; subrounded and exfoliating
Undisturbed by construction activity
584a 1-0cm
101
surface pebbles, granules and sand forming a weakly developed pavement
102
extensive surface salt precipitation,
584b 0-10cm
201
light grey to pale olive (5Y 7/2-6/3) sandy gravel
202
loose
203
rock particles subangular and unstained
204
indistinct boundary,
584c 10-30cm
301
pale olive (5Y 6/3) sandy pebble and cobble gravel
302
weakly cohesive
303
rock fragments angular and unstained,
584d 30-42cm
401
light yellowish brown (2.5Y 6/4) sandy pebble and cobble gravel
402
moderately cohesive
403
slightly sticky
404
moist
405
sharp boundary
406
drill core in ice-cemented ground
584e 42-54cm
501
[ light yellowish brown (2.5Y 6/4)
584f 54-72cm
601
[
584g 72-90cm
701
[ light yellowish brown (2.5Y 6/4)
584h 90-111cm
801
[ light yellowish brown (2.5Y 6/4)
584i 111-118cm
901
[ light yellowish brown (2.5Y 6/4)
584j 118-129cm
1001
[
584k 129-138cm
1101
[ light grey (2.5Y 7/2) on rock
Yes
a,b,c,d,e,f,g,h,i,j,k
a,b,c,d,e,f,g,h,i,j,k
Hard ice-cemented
54
1
(54cm)
Geoland
The land surface is an undulating till plain formed by retreat of the Wilson Piedmont Glacier; The Marble Point region is an old landscape, as evidenced by |
deposits of phillipsite, buried soils and oxidised gneiss, which have been covered by advances of the grounded Ross Ice Shelf; later ice retreat and glaciological |
features have been controlled by changes in the stranded Wilson Piedmont Glacier; the till mantle is patchy and dominated largely by locally occurring rocks; |
gneiss bedrock outcrops locally |
Soluble Salt |
Concentration |
58400001
584a
1-0cm
-1
0
39.00
1.90
none
58400001
40.00
27.70
19.40
30.10
15.60
4.30
1.70
0.90
0.30
1.90
58400002
53.00
29.70
22.00
26.60
13.40
4.80
1.50
1.30
0.70
7.30
58400003
20.00
45.20
24.10
16.80
6.40
3.00
1.80
2.10
0.70
3.70
58400004
29.00
34.40
19.40
16.80
9.20
7.30
6.50
3.40
3.10
7.20
58400005
23.00
38.30
16.40
14.00
9.40
9.50
7.20
2.70
2.50
8.60
58400006
34.00
16.70
10.60
16.80
13.60
14.20
18.10
7.60
2.30
56.90
58400007
29.00
15.80
11.10
17.20
14.50
16.20
13.90
8.90
2.50
22.20
58400008
48.00
12.70
13.90
20.60
15.10
14.80
13.60
6.40
3.00
35.30
58400009
51.00
15.30
7.40
13.40
12.80
16.50
19.20
12.70
2.60
16.50
58400010
54.00
12.20
9.00
14.90
13.00
16.40
19.00
13.00
2.40
29.50
58400011
33.00
18.50
6.20
10.20
11.00
16.20
21.60
13.60
2.60
8.40
58400001
10.20
6.80
42.70
0.16
0.45
20.60
10.40
0.30
58400002
9.30
0.20
1.20
0.01
0.05
0.30
0.30
0.03
58400003
8.90
0.12
0.55
0.07
0.05
0.30
0.40
0.01
58400004
8.50
0.18
0.75
0.07
0.06
0.40
0.50
0.03
58400005
7.90
0.24
0.78
0.03
0.10
0.04
0.60
0.60
0.00
58400006
7.50
0.90
1.36
1.03
0.69
0.08
1.80
3.50
0.01
58400007
7.10
1.26
4.45
0.69
0.95
0.12
3.40
3.10
0.03
58400008
7.70
1.44
5.45
0.59
1.06
0.15
4.70
3.20
0.03
58400009
7.60
1.50
4.60
1.44
1.33
0.17
3.50
5.20
0.06
58400010
8.10
1.80
5.40
1.23
1.87
0.22
4.00
7.00
0.05
58400011
5.20
1.60
4.90
1.04
2.40
0.18
3.80
7.00
0.06
58400001
40
40
10
10
58400002
40
25
20
5
10
58400003
30
30
30
10
58400004
35
30
30
5
58400005
10
30
45
7
8
58400006
20
45
20
5
5
58400007
20
30
5
20
5
13
7
58400008
24
10
18
5
24
8
8
3
58400009
20
25
15
15
8
58400010
35
25
10
2
12
8
8
58400011
35
40
2
2
5
8
8
12-Dec-2005
Page 542 of 896
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