Ross Sea Region Soil Sites
807000
807
19-Jan-1995
IBC, GGC
Greenville Valley, southwest of Northwind Glacier in the Convoy Range
Permafrost and soil moisture investigations
not recorded
Lscp & CS Profile
No
160.8150
-76.7550
76deg 45.3'S
-160deg -48.9'E
cf. Notes for DESCR below
3
NW
1,215
cf. Notes for GEOLAND below
| Xerous to sub xerous; several snowfalls and a recent fall within 2 days; most snow cover |
| removed by ablation but some soil moistening in the upper few centimetres; no liquid flows |
-27
Central Mountain
Shallow doleritic and sandstone (Weller Coal Measures) till with scattered granite over ice-cemented ground
Occasional yellow and green lichen in rock fissures and some patches of black lichen
weakly developed 10-15m nets with shallow troughs
| SURFACE WEATHERING or |
| SURFACE FEATURES |
| Moderate to strong surface oxidation; some exfoliation and granular disintegration; moderately developed pitting and pavement development; weakly to |
| moderately developed ventiforms; some salts beneath surface stones |
Nil
807a 3-0cm
101
surface boulders, cobbles and pebbles
102
moderately developed pavement
103
clasts subrounded to subangular, moderately to strongly stained and moderately pitted,
807b 0-2cm
201
brown (7.5YR 5/4) pebbly gravelly sand
202
firm and frosted
203
diffuse salts
204
rock particles subrounded and subangular, moderately to strongly stained and partly altered
205
distinct boundary,
807c 2-14cm
301
brown (7.5YR 5/4) cobbly gravelly sand
302
firm and frosted
303
rock particles subangular, moderately stained and moderately altered
304
sharp boundary,
807d 14-26cm
401
light brownish gray (10YR 6/2) ice cemented gravel (drill core)
402
rock particles subangular to subrounded, many strongly altered,
807e 26-41cm
501
light brownish gray (10YR 6/2) ice-cemented gravel (drill core)
502
rock particles subangular to subrounded, many strongly altered,
807f 41-58cm
601
light brownish gray (10YR 6/2) ice-cemented gravel (drill core)
602
rock particles subangular, some moderately altered,
807g 58-76cm
701
light brownish gray (10YR 6/2) ice-cemented gravel (drill core)
702
rock particles subangular, some strongly altered,
703
807h 76-104cm
801
light brownish gray (10YR 6/2) ice-cemented gravel (drill core)
802
rock particles subangular,
807i 104-122cm
901
light brownish gray (10YR 6/2) ice-cemented gravel (drill core),
807j 122-130cm
1001
light brownish gray (10YR 6/2) ice-cemented gravel (drill core),
807k 130-145cm
1101
light brownish gray (10YR 6/2) ice-cemented gravel (drill core)
Yes
a,b,c,d,e,f,g,h,i,j
a,b,c,d,e,f,g,h,i,j
Hard ice-cemented
0
4
( ice cement at 14cm)
Descr
| Approximately 350 m north of site 805; approximately 8.5 km WSW of Larsen Crag, on the south west side of Greenville Valley, on a broad, uneven valley |
| floor surface formed below a slightly higher terrace like surface; the site is on a smooth sloping surface,,,,, |
Geoland
| Greenville Valley comprises mainly dolerite with some minor sedimentary rocks (Weller Coal Measures) and has been formed by ancient ice over riding the |
| Convoy Range from the west; valley head-wall deposits occur mainly around the south-western side of the valley and represent alpine glacial deposits; towards |
| the western end of Greenville Valley, the surface is a dolerite platform with a thin irregular till cover with occasional sandstone and decomposed granite erratics; |
| on the lower surfaces which slope and drain towards the north-east, tills deposits are more extensive, have more strongly developed patterned ground and have a |
| greater abundance of pink granite erratics;,,,,, |
| Soluble Salt |
| Concentration |
80700001
807a
3-0cm
-3
0
15.08
1.38
none
80700002
807b
0-2cm
0
2
67.95
2.92
none
80700003
807c
2-14cm
2
14
58.70
27.99
none
80700004
807d
14-26cm
14
26
81.20
19.62
none
80700005
807e
26-41cm
26
41
89.83
33.56
none
80700006
807f
41-58cm
41
58
59.85
31.25
none
80700007
807g
58-76cm
58
76
63.95
37.38
none
80700008
807h
76-104cm
76
104
62.48
46.19
none
80700009
807i
104-122cm
104
122
79.95
47.98
none
80700010
807j
122-130cm
122
130
64.93
31.60
none
80700011
807k
130-145cm
130
145
none
80700001
15.00
1.38
80700002
68.00
2.92
80700003
59.00
27.99
80700004
81.00
19.62
80700005
90.00
33.56
80700006
59.80
32.25
80700007
63.90
37.38
80700008
62.50
46.19
80700009
79.90
47.98
80700010
64.90
31.60
80700001
80700002
80700003
80700004
80700005
80700006
80700007
80700008
80700009
80700010
80700001
80700002
80700003
80700004
80700005
80700006
80700007
80700008
80700009
80700010
12-Dec-2005
Page 784 of 896
807
