Ross Sea Region Soil Sites
321000
321
20-Nov-1972
IBC, GGC
Taylor Dry Valley, McMurdo Dry Valley region near Lake Bonney
Soil weathering and salt examination
USGS 1:50,000 Antarctic Topo. Ser. Lake Bonney Quadrangle
Cs Lsc
No
162.4470
-77.7283
77deg 43.7'S
-162deg -26.8'E
cf. Notes for DESCR below
6
NW
345
| Scoria cones occur in numerous places in Taylor Valley and provide useful markers for determining ages of the glacial deposits; this small occurrence at the edge of the |
| Hughes glacier is overlain by recent till |
(6o)
A moist site with occasional stream flow nearby
-23
Inland Mountain
Reddish scoria, partly disaggregated from in situ flow material
(-23oC)
Nil observed
Nil
| SURFACE WEATHERING or |
| SURFACE FEATURES |
Weakly disaggregated bedrock with some surface salt precipitations
Nil
321a 0-5cm
101
brown to dark brown (10YR 4/3) granular gravel
102
loose
103
many surface salt precipitations
104
rock particles angular and unstained
105
rock fabric partly crumbly
106
sharp boundary, on firm reddish brown basalt
Yes
a
0
1
Descr
| On the SE side of Lake Bonney, immediately adjacent to and near the snout of the Hughes Glacier; a bouldery gully alongside the margin of the Hughes Glacier; |
| near the northern end at an outcrop of reddish brown scoria; approximately 15m from the glacier front |
| Soluble Salt |
| Concentration |
32100001
32100001
32100001
12-Dec-2005
Page 278 of 896
321
