Ross Sea Region Soil Sites
434000
434
16-Nov-1978
IBC, GGC
Hatherton Glacier, Transantarctic Mountains
Soil weathering examination
United States Geological Survey 1966; 1:250,000 Turnstile Ridge, Antarctica
CS Pro
No
155.1020
-79.8733
79deg 52.4'S
-155deg -6.1'E
cf. Notes for DESCR below
0
Nil
2,125
cf. Notes for GEOLAND below
Small patches of snow but no thaw or soil moistening
-40
Inland Mountain
Wind sorted predominantly dolerite pebbles and cobbles
Nil observed
Nil
| SURFACE WEATHERING or |
| SURFACE FEATURES |
A strongly developed cobble and pebble pavement of predominantly subrounded clasts; strongly stained; many strongly polished;
Nil
434a 4-0cm
101
surface pebbles, cobbles and granular sand
102
rock particles subrounded and strongly stained,
434b 0-5cm
201
yellowish red (5YR 5/6) granular sandy gravel
202
loose to weakly cohesive
203
rock particles subrounded and moderately to strongly stained
204
sharp boundary,
434c 5-15cm
301
yellowish red (5YR 4/6) sandy gravel
302
firmly cohesive
303
common diffuse salts
304
rock particles subrounded and strongly stained
305
sharp boundary,
434d 15-35cm
401
yellowish red (5YR 4/6) sandy pebble gravel
402
moderately to strongly cohesive
403
abundant diffuse salts
404
rock particles subangular to subrounded, moderately stained and some strongly altered
405
distinct boundary,
434e 35-50cm
501
yellowish red (5YR 4/6) cobble gravel
502
moderately cohesive
503
few scattered salts
504
rock particles mainly subrounded and moderately stained
Yes
Dry frozen
50
5
(>50cm)
Descr
| To the north of an un-named peak (Pk 2421) to the SE of Turnstile Ridge and west of the head of the Hatherton Glacier on the moraine covered floor of a big |
| basin; a valley floor moraine to the SE of the basin glacier, an old wind modified surface approximately 4.5km NNE of Pk 2421; a ridge and hollow low dune |
| like surface; 15m from site 433 |
Geoland
| Ferrar Dolerite outcrops on the high surfaces; the soils on the high surfaces show significant weathering and the tills on the lower surfaces probably include |
| much reworked and pre weathered material; on the northern slopes of the basin, the till deposits are probably old cirque moraines; at this site the gravel may |
| have been resorted by wind |
| Soluble Salt |
| Concentration |
43400001
55.00
55.30
22.50
13.70
4.50
1.70
1.20
0.50
0.48
43400002
41.00
38.00
28.10
21.40
7.40
3.10
1.30
0.00
0.04
43400001
6.50
20.00
115.00
15.00
6.60
0.10
1.08
14.60
43400002
6.70
2.10
2.70
5.25
5.50
0.01
1.13
7.60
6.10
43400001
50
50
43400002
100
disordered
12-Dec-2005
Page 391 of 896
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