640
Bleil and von Dobeneck
Resultant Component Declination raJ
(a)
NRM
10mT
o 180
20mT
o 180
35 mT
o 180
50 mT
o 180
70mT
o 180
o 180
o
100
200
E
.£ 300
.r.
a. <1l
o 400
E
o
~
..Q
500
..6 ::J
(f)
600
700
800
Difference Component Declination [0]
0-10mT
10-20mT 20-35mT
35-50mT
50-70mT
o 180
0 180
0 180
0 180
0 180
(b)
o
o
100
100
200
200
E
.£ 300
300
.r.
a. <1l
o 400
400
E
~
..Q
500
500
..6 ::J
(f)
600
600
700
700
800
800
o
100
200
300
400
500
600
700
800
Fig. 3. Variation of remanent declinations in core GeoB 1519-1 upon progressive alternating field demagnetization.
(a) Resultant magnetization components after each demagnetization step. (b) Difference magnetization components
removed during each demagnetization step. All data refer to an absolute, true north azimuth.