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Ice cores: Summary |
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There were 35 individual ice cores analyzed for crystallography. The total length of the cores was 20.1 m, with 66% granular ice and 34% columnar. |
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Ice Sample |
Core length (cm) |
Thickness (cm) |
FB (cm) |
Granular (%) |
Columnar (%) |
Ice Station Description |
Comments |
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50 |
x |
x |
40 | 60 |
Process Site 1 |
Structure core |
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50 |
x |
x |
(on a rafted floe) |
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33 |
x |
x |
53 | 47 |
Process Site 1 |
Structure core |
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33 |
x |
x |
(on a level floe) |
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33 |
x |
x |
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34 |
34 |
2 |
40 | 60 |
West of Adelaide Polynya |
Structure core, |
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33 |
32 |
1 |
"Arched Iceberg" |
granular w/ bubble bands |
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45 |
40 |
0 |
73 | 27 |
West of Adelaide Polynya |
Structure core, broken at 19cm |
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45 |
40 |
1 |
(on rafted floe area) |
granular w/ lots of bubbles |
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30 |
30 |
0 |
68 | 32 |
East of Adelaide Polynya |
Structure , broken at 11-12cm |
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30-31 |
31 |
1 |
"Leopard Seal" |
Cores taken at 3m mark, on rafted floe |
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32 |
x |
x |
West of Adelaide Polynya |
Biology core, site 1, rafted floe |
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34 |
35 |
3 |
37 | 63 |
West of Adelaide Polynya |
Structure core |
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35 |
34 |
2 |
(site 2, level floe) |
top 1-2cm unconsolated |
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84 |
82 |
6 |
25 | 75 |
Ice Station Robert (ISR) |
Structure Core (from 100m mark) |
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86 |
86 |
7.5 |
100m mark |
Temp/Sal/d18O core from 100m mark |
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45 |
x |
x |
50 | 50 |
Structure Core: |
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32 |
29 |
-7 |
59 | 41 |
ISR, 0m mark |
Structure Core (from 0m mark) |
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32 |
32 |
-9 |
Temp/sal/d18O core - 0m mark |
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109 |
183 |
14 |
76 | 24 |
ISR, 50m mark |
Structure Core (from 50m mark) |
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85 |
182 |
13 |
Sal/d18O |
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70 |
173 |
12 |
Temp/Bio core |
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40 |
39 |
-8 |
58 | 42 |
ISR, 1m ON |
Structure core (1m ON), broken at 13 |
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48 |
49 |
-9 |
Sal/d18O core (1m ON) |
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52 |
x |
x |
80 | 20 |
ISR, 1m OFF 1m |
Structure Core (1m OFF) |
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35 |
x |
x |
Temp/Sal/d18O core (1m OFF) |
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47 |
47 |
13 |
100 |
ISR, 10m ON |
Structure Core (10m ON) |
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49 |
48 |
11 |
Temp/Sal/d18O Core (10m ON) |
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28 |
33 |
3 |
100 |
ISR, 10m OFF 10m |
Structure Core(10m OFF) |
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47 |
x |
x |
Temp/Sal/d18O Core (10m OFF) |
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64 |
165 |
12 |
48 | 52 |
ISR, 50m OFF 50m |
Structure Core (50m OFF) |
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112 |
170 |
18 |
Temp/Sal/d18O Core (50m OFF) |
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52 |
51 |
4 |
54 | 46 |
ISR, 50m OFF 100m |
Structure Core (at 100m, 50m OFF) |
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49 |
51 |
4 |
Temp/Sal/d18O Core (100m, 50m OFF) |
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44 |
47 |
3 |
43 | 57 |
ISR, 100m OFF 100m |
Structure Core (at 100m, 100m OFF) |
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46 |
47 |
3 |
Temp/Sal/d18O Core (100m, 100m OFF) |
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43 |
42 |
0 |
43 | 57 |
ISR, repeat 0m |
Structure (at 0m, 1m OFF south), 10cm PICO core |
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44-45 |
44 |
0 |
T/S/d18O Core ( 0m,1m off S) |
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54 |
52 |
1 |
28 | 72 |
Ice Station Fernando |
Structure Core (ISF, at 0m mark) |
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53-54 |
54 |
3 |
(ISF), 0m on transect |
Temp/Sal/d18O, Broken at 13,34 |
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44 |
x |
x |
40 | 60 |
ISF, at Optics site |
Structure Core from Optics Site |
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50 |
49 |
2 |
95 | 5 |
Ice station Gymnastics |
Structure Core |
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47 |
49 |
2 |
Ice station Gymnastics |
Temp/Sal/d18O Core |
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26 |
26 |
69 | 31 |
Ice Station Billy (ISB) |
0m mark |
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45.5 |
45.5 |
84 | 16 |
Ice Station Billy (ISB) |
26 m mark |
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31 |
31 |
19 | 81 |
ISB |
51m mark |
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56 |
56 |
100 | 0 |
ISB |
76m mark, nested triangle core array |
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ISB |
5m from 76m, i.e. at the 71m mark |
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140 |
140 |
86 | 14 |
ISB |
5m off |
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121 |
121 |
97 | 3 |
ISB |
25m off |
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37 |
37 |
65 | 35 |
ISB, Optics site |
Optics site. 8m S/SE of the 26m mark |
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ISB, 52m mark |
repeat of 51m area |
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| 16 | 16 | 66 | 34 |
ISB, -25m mark |
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72.5 |
72.5 |
47 | 53 |
Ice Station Roxanne |
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158 |
158 |
84 | 16 |
Ice Station Amphipod |
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Ice Station Yoga |
