Table Top, a small peak on the east side of Bartlett Glacier, 13km SE of Mt Gardiner and 9km NW of Mt Denauro; on a broad undulating till-covered ridge approximately 100 below the crest
Altitude:
1975 m
Aspect:
N
Slope:
3 °
Location Data
Observer
IBC
GGC
GPS
No
Latitude Longitude DMS
86° 24.50' S 152° 17' W
86° 24.00' S 152° 17' W
Latitude Longitude DD
-86.4083 -152.283
-86.4000 -152.283
Latitude longitude precision DD
0.0008 0.008
0.0008 0.008
Locality
Scott Glacier region, southern Trans-antarctic Mountains on the east side of Bartlett Glacier
Survey
US Geological Survey 1:250 000 1968, Nilsen Plateau
Climate
Soil climate zone:
Inland Mountain
Estimated mean annual temperature:
-38
°C
Frozen ground depth:
40 cm
Frozen type:
Dry frozen over stagnant ice?
Frozen comment:
40cm
Geology
Geological setting:
The upper surface of Table Top has a cover of till which shows a moderate degree of weathering; the till has a typical sandy/silty rock flour fine fraction; granite, dolerite and sandstone clasts indicate a non local source
Patterned ground:
Weakly developed broad nets
Surface weathering or surface features:
Small to medium sized boulders, subangular to subrounded, with negligible pavement formation; distinct to strong surface staining and some clasts polished; some surface exfoliation; salt accumulations beneath some clasts
Soil
Soil parent material:
Sandy to silty bouldery till from granite dolerite and sandstone
Scattered snow patches but no indications of snow thaw or liquid water
Biological activity:
Nil at site
Profile Description
Horizon
Depth
Description
228a
0
–
3
cm
brownish yellow (10YR 6/6) granular pebbly silty sand; loose to weakly cohesive; weakly developed vesicular structure; a few scattered salts; rock particles subrounded and weakly stained; distinct boundary,
228b
3
–
9
cm
brownish yellow to light yellowish brown (10YR 6/6 - 6/4) silty granular bouldery gravel; indistinct zone of salts around 10- 12cm; loose; rock particles subangular to subrounded and weakly stained and a few some with thin reddish yellow (7.5YR 5/8) coatings; indistinct boundary,
228c
35
–
40
cm
brownish yellow to light yellowish brown (10YR 6/6 - 6/4) sandy gravel; loose; rock particles subangular to subrounded and weakly stained; sharp boundary, on ice