On the youngest moraine associated with a valley head cirque ice tongue in Koenig Valley; a coarse bouldery and gently sloping uneven surface with a thin till cover over ice
Altitude:
1675 m
Aspect:
W
Slope:
6 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
77° 36.6' S 160° 44' E
77° 36.6' S 160° 44' E
Latitude Longitude DD
-77.6100 160.733
-77.6100 160.733
Latitude longitude precision DD
0.0008 0.008
0.0008 0.008
Locality
Wright Valley at the Western end in the Asgard Range, at the SW end of Koenig Valley, approximately 1km SSE of Mt Thor
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; subsequent glaciation has been restricted mainly to valley head cirque type activity; the glacial deposits represent accumulations of local head wall materials which have probably been weathered in place before incorporation into local glaciers
Patterned ground:
Nil
Surface weathering or surface features:
Surface clasts mainly angular to subangular with distinct surface staining
Soil
Soil parent material:
Dolerite in coarse clasts (up to 1.5m) that have been pre weathered with some sandstone fragments
Recent 3 cm snowfall with some thawing and water films on rock surfaces
Biological activity:
Nil observed
Profile Description
Horizon
Depth
Description
382a
-2 – 0 cm
surface boulders, cobbles and granular gravel; subrounded and mostly distinctly stained; many smaller particles are distinctly altered,
382b
0 – 5 cm
dark yellowish brown (10YR 4/4) bouldery gravel; loose; smaller particles mainly subangular and many strongly stained and moderately altered; sharp boundary,
382c
5 – 10 cm
dark yellowish brown (10YR 4/6) bouldery gravel; ice cemented; rock particles subangular and many distinctly stained and moderately altered