motion between east and west antarctica
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8/20/2019 Motion Between East and West Antarctica
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T A S M A N S E A
CR
EB
M R
STOC
N D
R
C A M
P B E L L
P L A T E
A U
B A L L E N Y F Z G
E O R G
E V F Z
S E I R
T R A
A N T I P O D E S F Z
P A C - A N T R I
D G E
IB
ROSSSEA
EMBAYMENT
M B L EAST
ANTARCTICA
T R A N S A N T . M
T N S
1 2 0 °
1 2 0 °
1 4 0
°
1 4 0
°
1 6 0 °
1 6 0 °
1 8 0 °
1 8 0 °
2 0 0 °
2 2 0 °
2 2 0 °
- 8 0
° - 8
0 °
- 6 0 °
- 6 0 °
- 4 0 °
©
2000 Macmillan Magazines Ltd
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2000 Macmillan Magazines Ltd
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1 5 0
° E
1 5 0
° E
1 6 0 ° E
1 7 0 ° E
1 7 0 ° E
1 8 0 °
1 8 0 °
1 7 0
° W
1 7 0
° W
1 6 0 ° W
7 5 ° S
7 5 ° S
7 0 ° S
7 0 ° S
6 5 ° S
-50 -40 -30 -20 -10 0 10 20 30 40 50
mGal
13o
6o
8o
10o
13o
17o 20o
24o
27
33o
34y
24o
27
28/ 30
32a 33y
F Z A
A D A R E
T R O U G H
B A L L E N Y F Z
E M E R A L D F Z
I S E L I N
T R O U G
H
S C O T T R
I F T
ISELIN
BANKNB
CTVLB EASTERN
BASIN
ROSS ICE SHELF
ROSS I.
ABCD
S1
S2S2
CAPE
ADARE
CAPEROBERTS
SOUTHERN
VICTORIA
LAND
NORTHERN
VICTORIA
LAND
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2000 Macmillan Magazines Ltd
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17 13 12 9 1112 13 17 18 Model
13 9 13 17 18
D
C
B
A
3.5 km
2.5 km
0
nT
400
20 km5.5 mm yr –1 7 mm yr–1
West East
Adare trough
S2
S1
N2
N1
31 29 27 26 24 22 21 20 Model
27? 26 24 21 20(24?)
(24?)29? 27? 26 24 21 20
29? 26 24 21 20
29? 26 24 21
Scott rift
Nella Dan rift
5.0 km
4.5 km
4.0 km
3.5 km
20 km
0
750nT
6 mm yr –1 8 mm yr–1 13 mm yr–1
Northwest Southeast
East West
a b
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165°
165°
170°
170°
175°
175°
180°
180°
-72° -72°
-70° -70°
-68° -68°
-66° -66°
-64° -64°
7 5 k m
1 8 0 k m
1 8 0 k m
F Z A ( a n t )
F Z A ( a u s )
6o
8o10o
13o
20o
24o
6 0 °
6 0 °
8 0 °
8 0 °
1 0 0 °
1 0 0 °
1 2 0 °
1 2 0 °
1 4 0 °
1 4 0 °
1 6 0 °
1 6 0 °
1 8 0 °
1 8 0 °
- 6 0 °
- 6 0 °
- 4 0 °
- 4 0 °
G E O R G E V F Z
B A L L E N Y
F Z
N1
N2
1 4 0
° E
1 4 0
° E
1 5 0 ° E
1 5 0 ° E
1 6 0 ° E
1 6 0 ° E
1 7 0 ° E
1 7 0 ° E
1 8 0 °
1 8 0 °
1 7 0 ° W
7 5 ° S
7 5 ° S
7 0 ° S
7 0° S
CAPE ADARE
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2000 Macmillan Magazines Ltd
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© 2000 Macmillan Magazines Ltd