Environmental Engineering Reference
In-Depth Information
Table 3.1 (
cont.
)
Pre-existing rifts
(age in Ma)
Abbreviation Age
Type
Centre today
At eruption time
LIP
(Ma)
Latitude
Longitude
Latitude
Longitude
22 Magellan Rise
a
-
-
MR
145
OP
7.0
183.0
1.1
108.0
Shatsky Rise
a
23
SR
147
OP
34.0
160.0
7.3
-
108.0
24 Argo Margin
b
AM
155
OP
-
17.0
120.0
-
43.4
82.9
25 Karroo
a
K
182
CLIP
-
23.0
32.0
-
37.0
-
5.2
Dwyka (320)
26 Central Atlantic
Magmatic Province
a
CAMP
201
CLIP
27.0
279.0
16.8
-
25.4
Newark (230)
Siberian Traps
g
27
SBT
251
CLIP
65.0
97.0
62.5
44.2
Pudom (270)
Emeishan LIP
h
28
E
258
CLIP
26.6
104.0
-
4.0
134.2
Panjal Trapsi
i
29
PT
285
CLIP
34.0
75.0
-
42.9
59.5
Skagerrak-centred LIP
j
30
SCLIP
297
CLIP
57.5
9.0
9.8
-
2.0
Oslo (310)
a
Originally used by Burke and Torsvik (
2004
) and mostly based on Eldholm & Cof
n(
2000
).
b
Not used in subsequent paper because of age uncertainties but shown here.
c
Originaly listed as 73 Ma (revised in Torsvik
et al
.,
2006
).
d
Originally listed as Ontong Java 1 and 2.
e
First reconstructed in Torsvik
et al
.(
2009
).
f
First reconstructed here using U
Pb ages from Svalbard (Corfu
et al
.,
2013
) but ages of 90 Ma reported from Alfa Ridge.
g
First reconstructed in Torsvik
et al
.(
2006
).
h
First reconstructed in Torsvik
et al
.(
2008a
).
i
First reconstructed here.
j
First de
-
ned as a LIP and reconstructed in Torsvik
et al
.(
2008b
).
k
Youngest rift phase (Late Cretaceous
—
Early Tertiary).
