Ross Sea Region Soil Sites
389000
389
23-Nov-1977
IBC, GGC
Wright Valley at the Western end in the Asgard Range, at the NE end of Koenig Valley, approximately 1.6km N of Mt Freya
Soil weathering examination
USGS, Antarctica 1:50,000 Topo. Ser. 1977 Labyrinth Antarctica
No
No
160.8250
-77.6000
77deg 36.0'S
-160deg -49.5'E
| An eroded sandstone bench surface on the NE side of Koenig Valley overlain with a dolerite and sandstone cobble pavement; this sample is from accumulated wind-blown |
| detritus from the lee of a boulder |
0
Nil
1,545
cf. Notes for GEOLAND below
(0o)
Dry
-30
Inland Mountain
Granular sandy wind drift forming a small deposit in the lee of a boulder
Nil observed
Nil
| SURFACE WEATHERING or |
| SURFACE FEATURES |
The surface is loose and without a stone pavement; the deposit is essentially unweathered
Nil
389a 0-5cm
101
dark greyish brown (10YR 4/2) granular sand
102
loose
103
particles predominantly dolerite and subrounded to subangular with few well rounded quartz grains
104
dolerite particles mainly moderately stained with most moderately to distinctly altered
Yes
a
0
1
Geoland
| The Asgard Range is comprised of Beacon Sandstone and Ferrar Dolerite; the landscape is ancient with the high altitude valley cirques cut in pre-Miocene time; |
| erosional material carried by wind accumulates in the lee of boulders and gives an indication of weathering and geomorphic processes; the material is mainly |
| doleritic partly rounded and predominantly altered; its weathering and lack of strong rounding suggests that it is predominantly derived from the exfoliation of |
| local weathering surface dolerite boulders |
| Soluble Salt |
| Concentration |
38900001
85.00
38900001
38900001
12-Dec-2005
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