I
' O" ~
Evidence for Sea-Floor Spreading: the Magnetic Stripes
35
. 0 ·l1li
Q
PLI O
w
z
w
u
0
j;
•••
w
z
w
u
0
<.:>
::::;
5
Sl
E
~
..
.. §
«
i
0
0
~
E
a
•••
!i'
g
~
w
.\;
z
;;
w
0
u
K'
0
~
w
20
'"
•••
w
z
w
u
0
W
..J
"60 ·
•••
::>
0
w
u
30
.W
Q:
U
b
C
Fig. 1.16. a--c Magnetic lineations on the sea floor and the time scale of magnetic reversals, fo r the
last 80 million years. Pattern on Reykjanes Ridge from 1. R. Heirtzler et al. (1966. Deep-Sea Res.
13: 427). Time scale after Heirtzler et al. (1968) 1 Geophys Res 73: 2119) . Biostratigraphic boundaries (c) modified
' O" ~
Evidence for Sea-Floor Spreading: the Magnetic Stripes
35
. 0 ·l1li
Q
PLI O
w
z
w
u
0
j;
•••
w
z
w
u
0
<.:>
::::;
5
Sl
E
~
..
.. §
«
i
0
0
~
E
a
•••
!i'
g
~
w
.\;
z
;;
w
0
u
K'
0
~
w
20
'"
•••
w
z
w
u
0
W
..J
•••
0
w
u
30
Q:
U
b
C
Fig. 1.16. a--c Magnetic lineations on the sea floor and the time scale of magnetic reversals, fo r the
last 80 million years. Pattern on Reykjanes Ridge from 1. R. Heirtzler et al. (1966. Deep-Sea Res.
13: 427). Time scale after Heirtzler et al. (1968) 1 Geophys Res 73: 2119) . Biostratigraphic boundaries (c) modified
