Ross Sea Region Soil Sites
563000
563
24-Jan-1988
IBC, GGC
Bratina Island, southern McMurdo Sound
Weathering examination
Ross Island & Vicinity, Antarctica, 1:250 000 US Geological Survey, 1986
CS Lscp
No
165.4500
-78.0117
78deg 0.7'S
-165deg -27.0'E
300m west of Bratin Island on dirty ice; on sea ice with marine sponges and salt crust
0
Nil
2
The dirty ice is an extensive thermokarst area formed through freezing of anchor ice to the sea floor; ablation of the ice brings the sediment to the surface where it is reworked |
by thawing processes |
(0o)
Oceanic subxerous; a moist environment with considerable summer thaw and saline |
conditions |
-18
Coastal Antarctic
Marine sediment
Local ponds are biologically very active
Nil
SURFACE WEATHERING or |
SURFACE FEATURES |
Surface salts in places
Nil
563a 0-5cm
101
surface sediment sample containing marine sponges
102
57% <2mm
103
sample not described,
563b 0-5cm
201
surface sediment
202
no sponges visible
203
salt crust present
204
62% <2mm sample not described
Yes
a,b
0
Soluble Salt |
Concentration |
56300001
56300002
56300001
56300002
56300001
56300002
12-Dec-2005
Page 521 of 896
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