Ross Sea Region Soil Sites
380000
380
16-Nov-1977
IBC, GGC
Taylor Valley, eastern end near the coast
Soil weathering examination
USGS, Antarctica 1:50,000 Topo. Ser. 1977 Lake Fryxell Antarctica
No
No
163.5830
-77.6283
77deg 37.7'S
-163deg -35.0'E
At the eastern end of the Kukri Hills near the top of Mt Barnes; a rounded knoll a few metres below the crest on granitic rock
7
E
980
Mt Barnes comprises mainly granitic rock but dark coloured, possibly iron rich, dyke rock intrusives occur in places; in places the soils on these intrusives are strongly |
coloured |
(7o)
No local snow patches but some summer soil surface moistening from periodic snow falls; |
light snow fall at the time of sampling |
-20
Coastal Antarctic
Fragmented granitic bedrock
Lichen patches
Weakly developed small nets with some larger clasts in the cracks
SURFACE WEATHERING or |
SURFACE FEATURES |
Some granite clasts weakly to moderately cavernously weathered; distinctive rock fragmentation and shattering; distinctive surface rusty brown staining on |
clasts; some polish and some weak pitting on dark coloured clasts; granites are commonly crumbled |
Nil
380a 1-0cm
101
surface granitic sandy gravel of small to medium clasts
102
subangular to subrounded and some distinctly stained
103
some brownish coatings on undersides
104
a few fine root mat patches,
380b 0-3cm
201
light yellowish brown (2.5Y 6/4) sandy gravel
202
few root mat patches
203
loose
204
rock particles subangular to sub rounded and weakly stained with some particles weakly altered
205
indistinct boundary,
380c 0-16cm
301
light yellowish brown (2.5Y 6/4) sandy gravel, weakly cohesive
302
rock particles subangular to subrounded, weaakly stained and some partly altered
303
indistinct boundary
380d 16-25cm
401
light olive brown (2.5Y 5/4) sandy gravel
402
frosted
403
rock particles subangular and many with distinct surface staining
Yes
B-D
0
3
Soluble Salt |
Concentration |
38000001
38000002
52.00
38000003
44.00
38000004
51.00
38000001
38000002
38000003
38000004
38000001
38000002
38000003
38000004
12-Dec-2005
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