Ross Sea Region Soil Sites
248000
248
12-Dec-1969
IBC, GGC
Scott Glacier region, southern Trans-antarctic Mountains on the Watson Escarpment
Soil weathering examination
US Geological Survey 1:250 000 1968, Mount Blackburn
CS Lscp
No
-147.2500
-86.2333
86deg 14.0'S
147deg 15.0'E
| Valley floor surface at the head of Long Valley; a series of glacial retreat surfaces with hummocky patterned ground topography; the site is on young moraine near the Long |
| Valley ice tongue |
0
Nil
1,600
cf. Notes for GEOLAND below
Scattered snow patches but no thaw observed
-35
Inland Mountain
Young bouldery moraine over ice
Nil observed
Large well developed nets
| SURFACE WEATHERING or |
| SURFACE FEATURES |
Boulders are fresh with little surface staining but some slight abrasion and ventifaction; no salts beneath surface stones
Nil
248 5-0cm
101
surface boulders, pebbles and granular sand
102
fresh and unstained,
248a 0-5cm
201
light brownish grey to pale yellow (2.5Y 6/2 - 7/4) sandy granular to pebbly gravel
202
loose
203
rock particles subangular and unstained
204
indistinct boundary,
248b 5-13cm
301
light brownish grey (2.5Y 6/2) sandy granular to pebbly gravel
302
subrounded to subangular and unstained
303
sharp boundary, on ice
Yes
a,b
Stagnant ice
13
1
Geoland
| The valley floor moraines are formed by northward down-valley retreat of ice from Long Valley; moraine patterns are complicated by local ice stranding on the |
| valley sides; the youngest moraine and till deposits are near the glacier margin at the mouth of the valley; moraine composition reflects the geology of local |
| rocks, dominantly granite with some sandstone and dolerite |
| Soluble Salt |
| Concentration |
24800001
66.00
24800002
68.00
24800001
24800002
24800001
24800002
12-Dec-2005
Page 205 of 896
248
