Table 1 Comparison of various values between astronomic theoretical periods and predominant cycles of magnetic susceptibility from Tianzhu borehole.
Astronomic theoretical periods | Predominant cycles | |
|---|---|---|
(ka) | Depth (m) | Time (ka) |
404 (Eccentricity 1) | Â | Â |
| Â | 34.1 | 189.5 |
131 (Eccentricity 5) | Â | Â |
124 (Eccentricity 3) | Â | Â |
99 (Eccentricity 4) | Â | Â |
*95 (Eccentricity 2) | 17.1 | 95 |
53.6 (Obliquity 3) | 10.2 | 56.7 |
41.0 (Obliquity 1) | Â | Â |
39.6 (Obliquity 2) | 6.4 | 35.6 |
| Â | 5.1 | 28.3 |
23.7 (Precession 1) | Â | Â |
22.4 (Precession 2) | 4.1 | 22.8 |
19.1 (Precession 3) | 3.53 | 19.6 |
Accumulation rate: 18 cm/ka | ||