Ross Sea Region Soil Sites
514000
514
20-Jan-1983
IBC, GGC
Convoy Range, Trans-antarctic Mountains, Alatna valley
Soil weathering examination
CS Pro & Lscp
No
160.9880
-76.8967
76deg 53.8'S
-160deg -59.3'E
Approximately 1km N of Battleship Promontory; a low lying part of the valley floor in an area with several sink holes; the site is on the floor of a sink hole near the edge
0
Nil
825
cf. Notes for GEOLAND below
The site is a moist hollow; water was present at 25cm depth
-28
Central mountain
Dolerite, sandstone and granite gravelly till
Nil observed
Shallow rectangular patterned ground cracks on the side of the sink hole but none on the bottom
| SURFACE WEATHERING or |
| SURFACE FEATURES |
Salts precipitated on the moist soil surface; surface rocks are unstained with a fresh appearance resulting from the salt weathering
Nil
514a 0-10cm
101
dark yellowish brown (10YR 4/4 moist) sandy granular gravel
102
slightly sticky
103
rock particles subangular and unstained with smaller particles rounded
104
indistinct boundary,
514b 10-20cm
201
dark yellowish brown (10YR 4/4) sandy gravel
202
moist
203
rock particles subangular and unstained with smaller particles subrounded
Yes
a,b
Not known
0
2
Geoland
| Ferrar Dolerite and Beacon Sandstone are the local rocks; the till includes some granite and other basement rock; these are not found up-valley so must have |
| originated from the east; the sink holes suggest that the area may be underlain by stagnant ice; a few inliers of granite are present |
| Soluble Salt |
| Concentration |
51400001
74.00
28.00
37.00
17.00
4.00
2.00
3.00
8.00
0.22
51400002
62.00
45.00
34.00
9.00
3.00
2.00
2.00
5.00
0.17
51400001
8.90
5.90
26.00
4.40
6.40
0.12
0.17
9.40
9.30
51400002
9.00
4.15
19.60
1.70
4.40
0.08
0.10
9.20
6.60
51400001
60
35
5
51400002
50
35
15
12-Dec-2005
Page 472 of 896
514
