Ross Sea Region Soil Sites
515000
515
21-Jan-1983
IBC, GGC
Convoy Range, Trans-antarctic Mountains, Alatna valley
Soil weathering examination
CS & B&W Pro & Lscp
No
160.8730
-76.9083
76deg 54.5'S
-160deg -52.4'E
Approximately 1km from the eastern end of Battleship Promontory; on an undulating bench like surface; adjacent to some small salty ponds; the area surrounding the ponds |
has thick surface salt encrustations |
0
Nil
1,075
Ferrar Dolerite and Beacon Sandstone are the local rocks; the surface is part of dolerite sill
The site is moist and adjacent to a salty pond
-28
Central mountain
Fragmented dolerite
Nil observed
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
Surface rocks have a fresh appearance resulting from salt weathering
Nil
515a 0-3cm
101
dark yellowish brown (10YR 3/3 moist) sandy gravel
102
abundant small salt crystals
103
rock particles subangular and moderately stained
104
indistinct boundary,
515b 3-10cm
201
dark yellowish brown (10YR 3/3 moist) sandy gravel
202
abundant small salt crystals
203
rock particles unstained
204
indistinct boundary,
515c 10-20cm
301
dark yellowish brown (10YR 3/3 wet) sandy gravel
302
slightly sticky
303
rock particles subangular and unstained,
515d 20-30cm
401
dark yellowish brown (10YR 3/3 wet) sandy gravel
402
abundant coarse salt crystals
Yes
a,b,c,d,e,f
0
4
(??)
Soluble Salt |
Concentration |
51500001
50.00
43.00
21.00
11.00
3.00
1.00
17.00
4.00
0.06
51500002
54.00
40.00
21.00
15.00
5.00
2.00
9.00
8.00
0.06
51500003
73.00
37.00
20.00
15.00
6.00
2.00
10.00
9.00
0.06
51500004
74.00
9.00
5.00
2.00
1.00
9.00
1.00
0.05
51500005
51500006
51500001
8.00
15.02
68.50
14.90
36.00
0.21
31.10
41.00
29.70
51500002
7.90
7.47
36.00
6.00
16.50
0.18
16.10
18.30
12.40
51500003
7.90
6.52
32.00
1.60
11.70
0.20
13.80
16.70
10.60
51500004
7.80
3.30
13.60
7.60
7.60
0.08
5.20
12.30
3.50
51500005
gypsum
51500006
gypsum
51500001
disordered mica-smectite
51500002
disordered mica-smectite
51500003
disordered mica-smectite
51500004
disordered mica-smectite
51500005
51500006
12-Dec-2005
Page 473 of 896
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