Geology Reference
In-Depth Information
Rio sacuz
χ
5 10
-5
405 ka
405 ka
4 10
-5
3 10
-5
2 10
-5
e
e
e
e
e
e
1 10
-5
e
e
0
0
10 0 0 0 0 0 0
Stratigraphic position (m)
Rio sacuz
χ
MTM
1 10
-9
25 m
405 ka
Long eccentricity
8 10
-10
6 10
-10
125 and 95 ka
Short eccentricity
9.8 m
4 10
-10
Figure 6.9
Magnetic
susceptibility cyclostratigraphy
for the Rio Sacuz section.
Samples were collected every
meter and showed what was
interpreted by Spahn et al.
[2013] to be long (405 kyr)
and short (125 and 95 kyr)
eccentricity.
7.9m
condence interval
on red noise
2 10
-10
95%
90%
0
0
0.1
0.2
0.3
0.4
Frequency (1/m)
was observed for the Triassic carbonates of the Latemar. Based on the
magnetic mineralogy, ARM, applied with a peak alternating field of 100
mT and a bias field of 50 μT, was used for the rock magnetic cyclostratig-
raphy. The authors point out that the high coercivity hematite, if present
in a sample, would not be activated by the 100 mT peak alternating field
used to apply the ARM. Magnetic susceptibility was also measured for
