Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Mount Taishan' has mentioned 'Region' in the following places:
Occurrence Sentence Text Source
The Luxi region (including Mount Tai) used to be a huge subsiding belt or sea canal.
The uplift of the region started in the Proterozoic Era; by the end of the Proterozoic, it had become part of the continent.
Subsequently, in the Proterozoic Era, the Taishan region began to rise, becoming part of the continent by the end of the era.
The gneiss which emerged in the Taishan region is the foundation for all of North China.