原地台
- 网络protoplatform
原地台-
结果表明：古老的陆核、原地台、地台和地块等稳定地区内部的密度值横向变化小，年轻的褶皱带等活动地区内部的密度值横向变化大。
The conclusion show that : the density horizontal change small inside the stable region of the old continental nucleus , original platform , platform , and massif but the density horizontal change big inside the movable region of young fold band .