A slight mound on the undulating floor of Nibelungen Valley; near a granitic outcrop; approximately 2.5km NW of Panaroma Peak
Altitude:
1425 m
Aspect:
Nil
Slope:
0 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
77° 36.5' S 161° 21' E
77° 36.5' S 161° 21' E
Latitude Longitude DD
-77.608 161.350
-77.608 161.350
Latitude longitude precision DD
0.004 0.008
0.004 0.008
Locality
Wright Valley near the centre of the Asgard Range, to the SW of Lake Vanda in Nibelungen Valley
Survey
USGS, Antarctica 1:50,000 Topo. Ser. 1977 Lake Vanda Antarctica
Climate
Soil climate zone:
Central Mountain
Estimated mean annual temperature:
-28
°C
Frozen ground depth:
65 > cm
Frozen type:
Dry frozen
Frozen comment:
>65cm
Geology
Geological setting:
Local outcrops are dominated by Beacon Sandstone and Ferrar Dolerite; glacial sequences are similar to other alpine of the Asgard Range with old sequences of local alpine valley glaciers dominated by sandstone and dolerite; granite outcrops lower down the valley and its presence in the till may indicate up-valley movement
Patterned ground:
Nil
Surface weathering or surface features:
Granite clasts are strongly disaggregated; dolerite is moderately stained and weakly to moderately pitted; sandstone clasts are polished with reddish oxide coatings; moderate ventiforms and some cavernously weathered sandstone
Soil
Soil parent material:
Bouldery till predominantly from granite and with dolerite and sandstone
surface small boulders, pebbles and granular sand; moderate to strong surface staining and some disaggregation
400b
0
–
7
cm
brownish yellow (10YR 6/8) sandy to silty gravel; weakly cohesive; rock particles mainly subrounded; weakly stained and slightly altered; indistinct boundary,
400c
7
–
22
cm
yellowish brown (10YR 5/8) sandy to silty gravel; moderately cohesive; few to many diffuse salts; some ghosts; most rock particles subangular and non to weakly stained; distinct boundary,
400d
22
–
53
cm
olive yellow (2.5Y 6/6) sandy to silty gravel; loose to weakly cohesive; some patches of greyish unoxidised till; a few ghosts but most rock particles subangular, unstained and unaltered; indistinct boundary,