Ross Sea Region Soil Sites
430000
430
15-Nov-1978
IBC, GGC
Hatherton Glacier, Transantarctic Mountains
Soil weathering examination
United States Geological Survey 1966; 1:250,000 Turnstile Ridge, Antarctica
CS Pro & Lscp
No
155.0670
-79.9000
79deg 54.0'S
-155deg -4.0'E
| To the north of an un-named peak to the SE of Turnstile Ridge at the head of the Hatherton Glacier (Pk 2421); below a high dolerite remnant plateau surface on the NE |
| escarpment slope; on a steep slope about 150m below the escarpment edge |
28
N
2,250
| Ferrar Dolerite outcrops on the high surfaces; the soils on the high surfaces show significant weathering and the slope deposits probably include weathered materials from the |
| upper more stable surfaces |
Small patches of snow but no thaw or soil moistening
-40
Inland Mountain
Dolerite slope detritus
Nil observed
Small 4.5m nets with very shallow troughs
| SURFACE WEATHERING or |
| SURFACE FEATURES |
cf. Notes for SURFWEA below
Nil
430a 3-0cm
101
surface cobbles, small boulders and granular sand
102
loose
103
clasts moderately to strongly stained, subangular and many moderately to strongly altered
104
some thin salt precipitations on rock surfaces,
430b 0-10cm
201
yellowish red (5YR 4/6) granular gravel
202
loose
203
few fine salt flecks
204
| rock particles angular to subangular, strongly stained and moderately to strongly altered with red (2.5Y 4/8) |
| pseudomorphs |
205
sharp boundary,
430c 10-12cm
301
brown to dark brown (7.5YR 5/4) granular gravel
302
firmly frosted
303
rock particles subangular, moderately stained and some moderately altered
304
sharp boundary,
430d 12-15cm
401
brown to dark brown (7.5YR 4/4) ice-cemented ground
Yes
Hard ice-cemented ground
12
5
(12cm)
Surfwea
| A poorly developed pavement of mixed clast size; surface rocks are loose and easily dislodged but no evidence of significant down-slope movement; some clasts |
| with salt encrustations on upper surfaces but most are on the lower surfaces; rocks are mainly subangular and moderately to strongly stained; some exfoliation |
| and granular disintegration; thin patchy salt precipitations on some rock particles |
| Soluble Salt |
| Concentration |
43000001
23.00
43000002
64.00
54.20
22.70
16.60
3.20
0.70
1.50
0.40
0.55
43000003
75.00
54.20
25.10
14.30
2.20
0.70
2.80
0.20
0.35
43000004
54.00
24.90
33.20
23.10
8.00
5.50
3.70
0.60
0.80
43000005
43000001
43000002
7.10
1.40
0.20
0.90
0.30
0.01
0.07
1.07
0.17
43000003
6.60
0.35
0.20
0.25
0.10
0.01
0.06
0.52
0.03
43000004
7.30
0.10
0.20
1.69
0.40
0.00
0.09
1.77
0.14
43000005
43000001
43000002
disordered
43000003
disordered
43000004
disordered
43000005
12-Dec-2005
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