Ross Sea Region Soil Sites
109000
109
28-Dec-1964
IBC, GGC
Victoria Land, Trans-antarctic Mountains; at the southern end of the Cook Mountains in the Brown Hills region of the Darwin Glacier
Weathering examination
USGS 1:250,000 1963; Carlyon Glacier ST 57-60/13*
CS Lscp
No
158.5830
-79.7333
79deg 44.0'S
-158deg -35.0'E
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 dolerite |
outcrop just below a granite outcrop |
20
S
1,200
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 |
Xerous to subxerous; the surface is predominantly snow free; a recent light snowfall but this |
disappeared quickly through ablation |
-27
Coastal mountain
Fine fragmental material in dolerite bedrock crack; dom. quartz & feldspar, prob. blown in after abrasion & exfoliation from nearby granite outcrops
Nil observed
SURFACE WEATHERING or |
SURFACE FEATURES |
Exposed granite is moderately stained on uppermost surfaces and extruding edges are partly rounded; some cavernous weathering in bedrock
Nil
109a 0-5cm
101
light yellowish brown (2.5Y 6/4) granular pebbly sand between dolerite boulders
102
cohesive
103
weak cementing with fine particles
104
rock particles subrounded and moderately stained with some weakly altered
Yes
a
0
4
Soluble Salt |
Concentration |
10900001
109a
0-5cm
0
5
none
12-Dec-2005
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