A young bouldery surface at the north of Roberts Massif near Everett Nunatak
Altitude:
1950 m
Aspect:
Nil
Slope:
0 °
Location Data
Observer
IBC
GPS
No
Latitude Longitude DMS
85° 29' S 177° 10' W
Latitude Longitude DD
-85.483 -177.17
Latitude longitude precision DD
0.008 0.08
Locality
Head of Shackleton Glacier at Roberts Massif, Queen Maud Mountains, on the edge of the Polar Plateau
Survey
USGS 1:250 000 1968; Liv Glacier SV 1-10/5
Climate
Soil climate zone:
Inland mountain
Estimated mean annual temperature:
-45
°C
Frozen ground depth:
0 cm
Frozen type:
Frozen comment:
Geology
Geological setting:
Dolerite and Beacon Group sediments outcrop on overridden surfaces while deposits of old lithified till containing Ferrar Dolerite also occur; the older lithified till may be Sirius Formation, considered to be related to the onset of glaciation in Antarctica in Oligocene or Miocene times;
Patterned ground:
Nil
Surface weathering or surface features:
Boulder of "Sirius Till" is unweathered
Soil
Soil parent material:
Sample of older lithified till, possibly Sirius Formation
Previous disturbance:
Nil
Soil weathering stage:
6
Soil moisture status:
Ultraxerous, some patches of drift snow mainly behind larger boulders but no thawing