Table 9.1 - Summary of deformational events that have affected rocks of the Hong Kong SAR
| Age | Orientation / Movement | Tectonic Setting | Evidence | ||
|---|---|---|---|---|---|
| Mesozoic | Late Cretaceous |
NE - sinistral S-directed thrust NW - dextral |
strike-slip, transtensional and transpressional basins |
absolute displacement of rock units, S–C fabrics, thrust relationships, and extensional basins with NW- to N-trending long axes |
|
| Yanshanian | Early Cretaceous to Mid Jurassic |
NNW varying to N and NW extension generated variable sinistral and dextral components on ENE-trending faults |
extensional and variably transtensional convergent margin volcanic arc, becoming back-arc and eventually post- subduction |
ENE- to NE-trending dykes, plutons and long axes of calderas, locally NW-trending fissure volcanoes |
|
| Early Jurassic |
?NNW - SSE | extensional basins (ENE) | 'graben' in Tolo Channel | ||
| Indosinian | NE - dextral | transpressional | folds in Ma Shi Chau | ||
| Palaeozoic (Caledonian) |
NE | extensional basins (NE) | regional geology | ||
| Precambrian | NE | terrane collision/amalgamation (NE) |
deep crustal structures | ||