Ross Sea Region Soil Sites
593000
593
31-Jan-1990
IBC, GGGC, MRB
Pram Point, Scott Base, Ross Island
Soil moisture and permafrost investigations
Dept of Interior US Geological Survey 1986
CS Pro & Lscp
Yes
166.7410
-77.8519
77deg 51.11'S
-166deg -44.46'E
Between Scott base and Crater Hill, a small nivation cirque above and southwest of a bend in the track to a US radio antennae facility; this site is the fifth of the series of sites |
but is located on a small knoll approximately 15m below the snow bank |
5
SE
70
cf. Notes for GEOLAND below
Xerous to subxerous;
-18
Coastal Antarctic
Cobbly till and slope debris predominantly from scoria with minor accessions of sedimentary and granitic rocks
Nil
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
Unweathered; calcium carbonate coatings under some surface clasts
Probably minor treading disturbance
593a 0-4cm
101
greyish brown (10YR 5/2) bouldery scoria sandy gravel
102
loose
103
rock particles subangular to subrounded and unstained
104
distinct boundary,
593b 4-20cm
201
greyish brown (10YR 5/2) sandy granular scoria gravel
202
moderately cohesive
203
moist
204
rock particles subrounded to subangular
205
indistinct boundary,
593c 20-35cm
301
greyish brown (10YR 5/2) sandy granular scoria gravel
302
firmly cohesive
303
moist
304
rock particles subrounded to subangular
305
sharp boundary, drill core in ice-cemented ground
593d 35-58cm
401
[greyish brown (2.5Y 5/2) scoria gravel,
593e 58-66cm
501
[ greyish brown (2.5Y 5/2) scoria gravel,
593f 66-68cm
601
[ greyish brown (2.5Y 5/2) scoria rock,
593g 68-76cm
701
[ greyish brown (2.5Y 5/2) scoria rock
Yes
a,b,c,d,e,f,g
Hard ice-cemented
35
1
(35cm)
Geoland
Rocks are predominantly scoria flows of the McMurdo Volcanics; Last Glaciation Ross 1 ice covered the site and traces of rocks (sandstone and granite granules |
and small pebbles) probably from the Royal Society Range can be found; the drift mantle is thin and patchy with bedrock a little below the surface |
Soluble Salt |
Concentration |
59300001
593a
0-4cm
0
4
53.00
2.20
none
59300002
593b
4-20cm
4
20
33.00
4.90
none
59300003
593c
20-35cm
20
35
32.00
4.50
none
59300005
593e
58-66cm
58
66
30.10
none
59300006
593f
66-68cm
66
68
14.40
none
59300007
593g
68-76cm
68
76
11.40
none
59300001
53.00
55.80
20.60
15.20
4.60
1.10
1.50
0.90
0.30
59300002
33.00
61.30
21.80
9.20
3.10
1.30
2.00
1.00
0.20
59300003
25.00
69.40
18.80
5.90
1.80
0.90
2.20
0.90
0.20
59300004
39.00
32.90
18.00
18.50
10.90
10.10
7.60
1.60
0.40
59300005
22.30
8.70
14.00
15.40
20.80
14.90
3.20
0.60
59300006
22.10
14.80
17.70
12.70
17.90
11.20
2.80
0.80
59300007
5.70
14.60
22.00
15.50
21.50
15.70
3.90
1.00
59300001
8.10
2.80
2.11
0.40
0.38
0.08
2.38
0.38
0.20
59300002
8.40
0.30
0.01
0.08
0.11
0.01
59300003
8.40
0.20
0.01
0.07
59300004
9.20
1.00
1.10
1.00
0.10
0.02
0.42
0.26
0.01
59300005
9.50
0.90
1.08
0.06
0.02
0.50
0.12
0.01
59300006
9.40
1.80
1.99
0.07
0.07
1.34
0.14
0.01
59300007
9.50
1.40
1.48
0.05
0.05
0.59
0.15
0.04
59300001
59300002
59300003
59300004
59300005
59300006
59300007
12-Dec-2005
Page 551 of 896
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