Research Article
The Mesozoic Tectonic Dynamics and Chronology in the Eastern North China Block
Table 3
Time-range index of main Mesozoic structure events in the eastern North China Block [
39].
| Structure belt | Dabie | West Shandong | Yanshan | Rock type | (Ultra) mafic rocks | Granite/shear zone | Metamorphic rock (migmatite) | Intermediate-mafic rock | Intrusive | Shear zone |
| Isotopic age of compression (Ma) | 220–240 | 190 | 230–240 | 230–250 | 165–180 | ~150 ~219 | Isotopic age of extension (Ma) | 120–130 | ~120 | 117–130 | 115–130 | 111–130 | 116–140 | Structural index of compression |
The oldest deposit in foreland molasse basin is Mid-Triassic and the youngest one is upper Jurassic | undeformed | J2 or J3 (Tiaojishan group) deformed | Structural index of extension | | J3, deformed | J3 or deformed | deformed |
|
|