Geology Reference
In-Depth Information
Fig. 2.30
A pre-rift fit of Pangaea, based on Schettino
and Scotese (
2005
) and Schettino and Turco (
2009
). The
present day coastlines are shown for reference. The major
tectonic elements in this reconstruction are: central Africa
(
CAF
), northwest Africa (
NWA
), northeast Africa (
NEA
),
Nubia (
NUB
), Somalia (
SOM
), Madagascar (
MAD
), Mo-
rocco (
MOR
), Arabia (
ARB
), India (
IND
), E. Antarctica
(
EAN
), Australia (
AUS
), W. Antarctica (
WAN
), Brazilian
Craton (
BRA
), Paraná (
PA R
), Salado Block (
SAL
), Patag-
onia (
PAT
), N. America (
NAM
), Greenland (
GRN
), North
Slope (
NSL
), Okhotsk (
OKH
), Eurasia (
EUR
), Iberia
(
IBE
), Amurian Plate (
AMU
), N. China (
NCH
), Yang Tze
Platform (
YTP
), and Indochina (
ICH
)
Fig. 2.31
Geometrical fit
of conjugate COBs. In a
reference frame (
x
0
,
y
0
,
z
0
)
where a test Euler pole,
e
,
hasbeenmovedtothe
North Pole, the fitting
procedure consists to find
the best rotation about the
North Pole, by an angle
that minimizes the squared
sum of longitude misfits
•
¥
i
(
i
N
)and•
¥
j
(
j
M
)
