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
Altitude:
1545 m
Aspect:
Nil
Slope:
0 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
77° 36' S 160° 49.5' E
77° 36' S 160° 51' E
Latitude Longitude DD
-77.600 160.825
-77.600 160.850
Latitude longitude precision DD
0.008 0.004
0.008 0.008
Locality
Wright Valley at the Western end in the Asgard Range, at the NE end of Koenig Valley, approximately 1.6km N of Mt Freya
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
Patterned ground:
Nil
Surface weathering or surface features:
The surface is loose and without a stone pavement; the deposit is essentially unweathered
Soil
Soil parent material:
Granular sandy wind drift forming a small deposit in the lee of a boulder
dark greyish brown (10YR 4/2) granular sand; loose; particles predominantly dolerite and subrounded to subangular with few well rounded quartz grains; dolerite particles mainly moderately stained with most moderately to distinctly altered