Ross Sea Region Soil Sites
558000
558
22-Jan-1988
IBC, GGC
Royal Society Range; Transantarctic Mountains
SITE KEY
SITE NO
REASON SAMPLED
DATE RECORDED
AUTHORS
Soil weathering examination
DESCRIPTION
Ross Island & Vicinity, Antarctica, 1:250 000 US Geological Survey, 1986
MAP SURVEY
CS Lscp & Pro
PHOTO RECORD
No
163.3830
/
-78.2333
LAT LONG
78deg 14.0'S
-163deg -23.0'E
/
Lat/Long (deg)
]
Walcott Bay, approximately 1.5km east of the terminus of Walcott Glacier; on an undulating till surface with weakly developed patterned ground; the sample site is 40cm from 
a patterned ground crack
ALTITUDE (m)
GEOLOGICAL 
SETTING
0
SLOPE (deg)
Nil
ASPECT
350
cf. Notes for GEOLAND below
(0o)
TEMPERATURE  (degC)
DEPTH (cm)
0
1.5
 22/Jan/88:11.30pm
surface
0
4.5
 22/Jan/88:8.30pm
surface
0
2.5
 22/Jan/88:3.30am
surface
0
13.0
 22/Jan/88:2.30pm
surface
0
8.5
 22/Jan/88:10.30pm
surface
1
10.5
 22/Jan/88:2.30pm
 
1
8.5
 22/Jan/88:10.30pm
 
1
3.5
 22/Jan/88:3.30am
 
1
6.0
 22/Jan/88:8.30pm
 
1
2.5
 22/Jan/88:11.30pm
 
5
4.5
 22/Jan/88:11.30pm
 
5
5.5
 22/Jan/88:3.30am
 
5
6.5
 22/Jan/88:8.30pm
 
5
7.5
 22/Jan/88:2.30pm
 
5
6.5
 22/Jan/88:10.30pm
 
20
5.5
 22/Jan/88:10.30pm
 
20
6.0
 22/Jan/88:3.30am
 
20
5.5
 22/Jan/88:8.30pm
 
20
5.5
 22/Jan/88:2.30pm
 
20
4.5
 22/Jan/88:11.30pm
 
30
4.0
 22/Jan/88:11.30pm
 
30
4.0
 22/Jan/88:8.30pm
 
30
4.5
 22/Jan/88:2.30pm
 
30
4.5
 22/Jan/88:3.30am
 
30
4.5
 22/Jan/88:10.30pm
 
50
2.5
 22/Jan/88:10.30pm
 
50
2.0
 22/Jan/88:3.30am
 
50
2.5
 22/Jan/88:2.30pm
 
50
1.5
 22/Jan/88:11.30pm
 
50
2.0
 22/Jan/88:8.30pm
 
Oceanic subxerous; the site is dry; occasional summer snow falls
SOIL MOISTURE STATUS
-21
Est MAT (degC)
Coastal Antarctic
SOIL CLIMATE ZONE
Very sandy gravelly till with sand wedges
SOIL PARENT MATERIAL
Small lichen occurrences on crystalline rocks are common
BIOLOGICAL ACTIVITY
Weakly developed broad nets with raised borders; 25cm deep troughs; sand wedges are present
PATTERNED GROUND
SURFACE WEATHERING  or 
SURFACE FEATURES
A moderately developed pebble and small cobble pavement; most clasts subrounded and unstained;
PREVIOUS DISTURBANCE
Nil
PROFILE DESCRIPTION
558a 4-0cm
101
 surface pebbles and some cobbles
Part
102
 subrounded to subangular and unstained
Part
103
 some distinct carbonate coatings and a few thin salt efflorescences,
Part
558b1 0-10cm
201
 greyish brown (2.5Y 5/2) very sandy gravel in a sand wedge
Part
202
 loose
Part
203
 a few dried algal particles
Part
204
 distinct calcium carbonate coatings on many clasts
Part
205
 rock particles subrounded and unstained
Part
206
 distinct boundary,
Part
558b2 0-10cm
301
 greyish brown (2.5Y 5/2) sandy gravel
Part
302
 loose
Part
303
 some thin silty coatings
Part
304
 a few carbonate coatings
Part
305
 rock particles subrounded and unstained
Part
306
 distinct boundary,
Part
558c 10-30cm
401
 dark greyish brown (2.5Y 4/2) sandy gravel
Part
402
 slightly moist
Part
403
 weakly cohesive
Part
404
 some carbonate coatings
Part
405
 rock particles mainly subrounded and unstained
Part
406
 distinct boundary,
Part
558d 30-50cm
501
 dark greyish brown (2.5Y 4/2 moist) sandy gravel
Part
502
 moderately cohesive
Part
503
 sharp boundary,
Part
558e-p 25-155cm
601
 ice-cemented drill core samples not described
Part
Yes
SAMPLES
a,b,c,d,e
Med
Hi
/
Hard ice-cemented
FROZEN TYPE
50
FROZEN GROUND DEPTH(cm)
1
SOIL WEATHERING STAGE
(50cm)
Notes:
Geoland
The Walcott Bay area has a complex geology with basement rocks, small volcanic cones and an extensive drift mantle which include a wide range of rocks; the 
lower altitude surfaces represent the most recently exposed surfaces following retreat of ice from Walcott Bay and the nearby alpine glaciers; the lower slopes 
are extensively ice-cored and the landscape is being actively modified in places by thermokarst processes
 
 
 
 
 
 
 
 
 
 
 
 
 
Seive
Size
VolMoisture  
Drill Vol
VolMoisture  
(BD=2)
Soluble Salt 
Concentration
Gravimetric 
Moisture
Particle 
Size
Dry Bulk
Density
Bulk
Density
Base
(cm)
Top
(cm)
Depth 
description
Sample
name
Sample
Key
Physical Data:
 
 
 
Notes
Grav.
MCont
Fe2O3
PartSize
<0.002
PartSize
0.02-0.002
PartSize
0.05-0.02
PartSize
0.1-0.05
PartSize
0.25-0.1
PartSize
0.5-0.25
PartSize
2-0.5
PartSize
<2mm
Sample 
Key
Particle Size
55800008
55800009
55800010
55800001
55800002
55800052
55800003
55800004
55800005
55800006
55800007
55800011
55800012
55800013
55800014
55800015
55800016
 
 
 
Notes
NO3
meq/100g
SO4
meq/100g
Cl
meq/100g
K
meq/100g
Mg
meq/100g
Ca
meq/100g
Na
meq/100g
EC
mmho/cm
pH
Solution Chemistry:
Sample 
Key
55800008
55800009
55800010
55800001
55800002
55800052
55800003
55800004
55800005
55800006
55800007
55800011
55800012
55800013
55800014
55800015
55800016
 
 
 
CAL
HB
FLD
QTZ
HT
FE 
CHL
SM
CHL
HIV
VT
ICHL
HIV 
IHM
IHM
MICA
Notes
Sample 
Key
Clay Mineralogy:
55800008
55800009
55800010
55800001
55800002
55800052
55800003
55800004
55800005
55800006
55800007
55800011
55800012
55800013
55800014
55800015
55800016
12-Dec-2005
Printed on
Page 516 of 896
Site:
558