Ross Sea Region Soil Sites
662000
662
13-Dec-1991
IBC, GGC, MRB
Pram Point, Scott Base, Ross Island
Leaching experiment using lithium chloride tracer to determine rate of leaching;
Dept of Interior USGS 1986 1:250,000 Ross Island & Vicinity, Antarctica
CS Lscp
No
166.7330
-77.8333
77deg 50.0'S
-166deg -44.0'E
cf. Notes for DESCR below
3
E
50
cf. Notes for GEOLAND below
Oceanic subxerous; a wet site wet surface water from recent snow thaw
-18
Coastal Antarctic
Bouldery till and slope detritus with minor accessions of sedimentary and granitic rocks
Nil at site; some yellow lichen and moss in the vicinity
Weakly developed frost heave polygons
SURFACE WEATHERING or |
SURFACE FEATURES |
Scattered basaltic boulders; unweathered
Probably some occasional treading
662a 1-0cm
101
surface pebbly sandy gravel
102
some surface salt precipitations
103
rock particles mainly subrounded,
662b 0-5cm
201
light brownish grey (2.5Y 6/2) sandy gravel
202
weakly cohesive
203
moist
204
a few carbonate coatings
205
rock particles subrounded
206
sharp boundary,
662c 5-13cm
301
light brownish grey to light yellowish brown (2.5Y 6/2 - 6/4) sandy to silty gravel
302
moderately cohesive
303
slightly sticky
304
wet
305
rock particles subrounded
306
distinct boundary,
662d 13-20cm
401
light brownish grey to light yellowish brown (2.5Y 6/2 - 6/4) sandy pebble gravel
402
moderately cohesive
403
wet
404
rock particles subrounded
405
distinct boundary,
662e 27-45cm
501
light brownish grey (2.5Y 6/2) sandy gravel
502
very firm
503
hard frozen
504
rock particles mainly subangular
505
indistinct boundary,
662f 45-56cm
601
drill core
602
grey (10YR 5/1) sandy gravel
603
rock particles angular,
662g 56-66cm
701
drill core
702
rock,
Yes
a,b,c,d,f,g,h
Hard ice-cemented
20
1
(20cm)
Descr
Approximately 350m northwest of the western end of Scott Base in the floor of a shallow gully; 20m NW of site 657 and approximately 3-4m lower in altitude; |
about 50m N of the Scott base to McMurdo Station walking track; at this site, 4 contiguous 1m X 1m plots were set out and 3 irrigated with LiCl, the 4th |
(northernmost) with H2O; this was the second plot resampling series; the site is at the centre of the application plot |
Geoland
Rocks are predominantly scoria flows of the McMurdo Volcanics; Last Glaciation Ross 1 ice covered the site and traces of rocks (sandstone and granite granules |
and small pebbles) probably from the Royal Society Range can be found; the drift mantle is thin and patchy with bedrock a little below the surface |
Soluble Salt |
Concentration |
66200001
69.00
66200002
54.00
4.43
66200003
50.00
19.61
66200004
43.00
7.50
66200005
8.49
66200006
27.00
173.66
66200007
21.00
20.51
66200008
41.00
18.58
66200001
66200002
66200003
66200004
66200005
66200006
66200007
66200008
66200001
66200002
66200003
66200004
66200005
66200006
66200007
66200008
12-Dec-2005
Page 620 of 896
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