Ross Sea Region Soil Sites
614000
614
21-Nov-1991
IBC, GGC, MRB
Marble Point, western McMurdo Sound
Permafrost and soil moisture examinations
USGS Antarctica Topographic Series 1:50,000; Marble Point, Antarctica
CS Pro & Lscp
Yes
163.6650
-77.4160
77deg 24.96'S
-163deg -39.90'E
| Approximately 4.4km NW of Marble Point peninsula and approximately 400m W of the Marble Point Air Facility; about 100m from the Wilson Piedmont Glacier; on the crest |
| of a slight rise between two depressions |
0
Nil
75
cf. Notes for GEOLAND below
6
0.0
10
-0.9
149
-12.1
A dry site with no surface water flows; no snow cover, snow thaw or soil moistening
-18
Coastal Antarctic
Sandy gravel till from mixed granite, gneiss and marble
Nil at site but locally moss and algae in damp or wet sites
Weakly developed 20-25m nets; 5-10cm troughs with open cracks
| SURFACE WEATHERING or |
| SURFACE FEATURES |
| Surface boulders are angular with some slight surface staining; some smaller clasts moderately oxidised; active exfoliation and fragmentation of granular |
| clasts; a few surface salt efflorescences |
Extensive mechanical and human activity in the region since the mid-1950's
614a 3-0cm
101
surface cobbly to bouldery sandy gravel
102
rock particles mainly angular
103
a few weak distinct stainings,
614b 0-8cm
201
light yellowish brown (2.5Y 6/4) sandy gravel
202
loose
203
rock particles mainly angular and a few with relict staining
204
distinct boundary,
614c 8-15cm
301
light yellowish brown (2.5Y 6/4) sandy gravel
302
loose to weakly cohesive
303
slightly moist
304
rock particles angular and unstained,
614d 15-25cm
401
light yellowish brown (2.5Y 6/4) sandy gravel
402
very hard
403
ice-cemented
404
rock particles angular and unstained
405
sharp boundary,
614e 25-35cm
501
light yellowish brown (2.5Y 6/4) sandy gravel
502
very hard
503
ice-cemented
504
sharp boundary,
614e1 25-38cm
601
drill core
602
light brownish grey (2.5Y 6/2) sandy to silty gravel,
614f 38-48cm
701
drill core
702
light brownish grey (2.5Y 6/2) sandy to silty gravel,
614g 48-53cm
801
drill core
802
light olive grey (5Y 6/2) sandy to silty gravel,
614h 53-66cm
901
drill core
902
light olive grey (5Y 6/2) sandy to silty gravel,
614i 66-78cm
1001
drill core
1002
light olive grey (5Y 6/2) sandy to silty gravel,
614j 78-88cm
1101
drill core
1102
light grey (2.5Y 7/2) sandy to silty gravel,
614k 88-120cm
1201
drill core
1202
light grey (2.5Y 7/2) sandy to silty gravel,
614l 120-131cm
1301
drill core
1302
light grey (2.5Y 7/2) sandy to silty gravel,
614m 131-149cm
1401
drill core
1402
light grey (2.5Y 7/2) sandy to silty gravel
Yes
a,b,c,d,e,f,g,h,i,j,k,l,m
a,b,c,d,e,f,g,h,i,j,k,l,m
Hard ice-cemented
35
1
(35cm)
Geoland
| The surface is a gently undulating till plain formed by retreat of the Wilson Piedmont Glacier; the Marble Point region is an old landscape, with 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; |
| granodiorite, granite, marble, gneiss, and dolerite are the main rock types present |
| Soluble Salt |
| Concentration |
61400008
79.00
11.00
16.40
31.10
14.40
9.70
11.00
6.00
0.40
10.70
61400009
51.00
8.30
16.10
32.20
17.30
11.90
9.40
4.60
0.30
32.40
61400010
81.00
8.00
12.60
31.90
18.20
12.60
11.50
5.00
0.30
23.97
61400011
75.00
26.50
16.10
23.90
13.10
9.80
7.30
3.20
0.10
27.07
61400001
18.00
32.20
14.30
22.80
18.10
7.40
3.40
1.50
0.50
61400002
64.00
32.20
18.30
22.90
15.40
7.00
2.60
1.20
0.40
1.00
61400003
57.00
25.20
20.00
23.60
13.20
7.60
4.20
0.70
4.50
1.96
61400004
47.00
24.30
19.00
22.90
12.00
7.00
6.40
4.20
4.20
3.76
61400005
52.00
24.40
19.90
22.60
11.50
7.00
6.30
4.40
3.90
4.39
61400006
79.00
17.30
14.50
20.70
14.30
12.30
12.00
7.50
1.40
5.59
61400007
65.00
17.50
12.60
21.10
15.40
13.20
13.20
6.60
0.40
15.01
61400012
69.00
20.00
12.70
20.90
14.60
12.30
12.50
6.80
0.20
14.52
61400013
64.00
13.20
9.10
15.70
18.20
21.20
14.90
7.50
0.20
15.20
61400008
9.90
0.26
1.80
3.31
0.38
0.15
0.70
0.10
61400009
9.90
0.28
1.80
2.65
0.19
0.16
0.70
0.10
61400010
10.00
0.32
2.40
4.50
0.40
0.20
0.90
0.20
61400011
9.80
0.65
4.30
1.26
0.13
0.09
1.90
0.70
61400001
9.40
1.20
6.60
0.22
0.26
0.18
5.00
0.70
0.10
61400002
9.70
1.30
7.60
0.10
0.16
0.17
5.30
1.00
0.10
61400003
9.80
1.00
7.60
3.70
2.42
1.00
4.10
0.40
0.10
61400004
9.90
0.40
4.55
4.60
2.90
1.33
1.40
0.10
61400005
10.00
0.30
2.80
0.56
0.25
0.11
0.90
0.10
61400006
10.00
0.19
7.60
2.15
0.31
0.14
0.30
0.20
61400007
9.90
0.24
1.90
2.56
0.36
0.15
0.60
0.10
61400012
10.00
0.44
2.40
0.60
0.08
0.10
1.40
0.30
61400013
9.40
0.80
4.70
1.10
0.22
0.10
3.10
0.30
61400008
18
8
7
15
17
15
15
5
61400009
10
15
15
10
25
5
12
8
61400010
15
5
10
20
20
10
15
5
61400011
5
15
25
25
15
15
10
61400001
15
5
5
15
15
short range order 20
61400002
20
5
5
20
15
5
short range order 45
61400003
55
2
3
20
15
5
short range order 20
61400004
55
5
10
15
14
1
61400005
65
5
5
10
mica-smectite 15
61400006
40
5
10
15
15
15
61400007
30
10
5
15
15
10
10
5
61400012
5
10
20
25
15
15
10
61400013
15
10
5
25
25
10
15
5
12-Dec-2005
Page 572 of 896
614
