A steep and narrow, rocky ridge ascending from near the terminus of the Bartrum Glacier to the Bowling Green Plateau; approximately half way up the ridge; a granite outcrop just above a dolerite outcrop
Altitude:
1300 m
Aspect:
S
Slope:
20 °
Location Data
Observer
IBC
GPS
No
Latitude Longitude DMS
79° 44' S 158° 35' E
Latitude Longitude DD
-79.733 158.58
Latitude longitude precision DD
0.008 0.04
Locality
Victoria Land, Trans-antarctic Mountains; at the southern end of the Cook Mountains in the Brown Hills region of the Darwin Glacier
Survey
USGS 1:250,000 1963; Carlyon Glacier ST 57-60/13*
Climate
Soil climate zone:
Coastal mountain
Estimated mean annual temperature:
-27
°C
Frozen ground depth:
0 cm
Frozen type:
Frozen comment:
Geology
Geological setting:
Dolerite sills intrude into and alternate with basement Granite Harbour Intrusives and outcrop prominently on ridges; surficial deposits are absent on the ridges but cracks in the rocks contain some weathering products
Patterned ground:
Surface weathering or surface features:
Exposed granite is moderately stained on uppermost surfaces and extruding edges are partly rounded; some cavernous weathering in bedrock
Soil
Soil parent material:
Fine fragmental granitic material within a crack in granite bedrock
Xerous to subxerous; the surface is predominantly snow free; a recent light snowfall but this disappeared quickly through ablation
Biological activity:
Nil observed
Profile Description
Horizon
Depth
Description
108a
0
–
12
cm
yellowish brown (10YR 5/6) pebbly granular sand in a narrow accumulation in a crack; weakly cohesive; few fine salts; rock particles angular with moderate surface staining.