Geoscience Reference
In-Depth Information
Table 2.1
Rotation vectors for the present-day relative motion between some
pairs of plates: NUVEL-1A
Positive-pole position
Angular velocity
(10
−7
deg yr
−1
)
Plates
Latitude
Longitude
5.6
◦
N
39.2
◦
W
Africa-Antarctica
1.3
21.0
◦
N
20.6
◦
W
Africa-Eurasia
1.2
78.8
◦
N
38.3
◦
E
Africa-North America
2.4
62.5
◦
N
39.4
◦
W
Africa-South America
3.1
13.2
◦
N
38.2
◦
E
Australia-Antarctica
6.5
64.3
◦
S
96.0
◦
E
Pacific-Antarctica
8.7
86.4
◦
S
139.3
◦
E
South America-Antarctica
2.6
24.6
◦
N
13.7
◦
E
Arabia-Eurasia
5.0
24.4
◦
N
17.7
◦
E
India-Eurasia
5.1
62.4
◦
N
135.8
◦
E
Eurasia-North America
2.1
61.1
◦
N
85.8
◦
W
Eurasia-Pacific
8.6
60.1
◦
S
178.3
◦
W
Pacific-Australia
10.7
48.7
◦
N
78.2
◦
W
North America-Pacific
7.5
27.9
◦
N
120.7
◦
W
Cocos-North America
13.6
55.6
◦
N
90.1
◦
W
Nazca-Pacific
13.6
56.0
◦
N
94.0
◦
W
Nazca-South America
7.2
Note
: The first plate moves anticlockwise with respect to the second plate as shown.
Source
: After DeMets
et al.
(1990; 1994).
Figure 2.10.
Motion of
southern California with
respect to North America.
Error ellipses represent
95% confidence. (After
Shen
et al
.(1997). Crustal
deformation measured in
Southern California,
EOS
Trans. Am. Geophys. Un
.,
78
(43), 477 and 482, 1997.
Copyright 1997 American
Geophysical Union.
Reprinted by permission
of American Geophysical
Union)
124
°
W
122
°
W
120
°
W
118
°
W
116
°
W
114
°
W
40
°
N
10mm/yr
North American
Plate
38
°
N
36
°
N
34
N
°
NUVEL-1A
Pacific Plate
32
°
N
