Approximately 4km SW of Battleship Promontory and 400m north of an un-named ice tongue; an older moraine surface; a smooth but gently undulating surface
Altitude:
1525 m
Aspect:
SW
Slope:
5 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
76° 55.4' S 160° 50' E
76° 56.5' S 160° 45' E
Latitude Longitude DD
-76.9233 160.83
-76.942 160.75
Latitude longitude precision DD
0.0008 0.08
0.004 0.04
Locality
Convoy Range, Trans-antarctic Mountains, Alatna valley
Survey
Climate
Soil climate zone:
Central mountain
Estimated mean annual temperature:
-30
°C
Frozen ground depth:
0 cm
Frozen type:
Frozen comment:
Geology
Geological setting:
Ferrar Dolerite forms extensive sills and the till appears to be derived from the local dolerite; with increasing distance from the ice front, soil weathering increases; a moraine surface clearly older than that for soil 519
Patterned ground:
Weakly to moderately developed nets with troughs up to 30cm deep
Surface weathering or surface features:
Surface boulders partly rounded; moderately stained; a moderately developed pebble pavement; weakly ventiform; salts beneath some surface stones
Soil
Soil parent material:
Doleritic till
Previous disturbance:
Nil
Soil weathering stage:
6
Soil moisture status:
Sole small local snow patches; the site is dry with no sign of soil moistening