东沙高磁异常含一定的高频成份，与新生代玄武岩及中生代岩浆岩有关，而其低频成份可能反映了发育的下地壳高速层。
The high frequency part of Dongsha high-value magnetic anomaly may be related with Cenozoic basalt and Mesozoic magmatic rocks, and the low frequency part developing high-velocity lower crust.
这些地质形成日期中生代时期，当层沉积的石灰岩积累下的水。
These geologic formations date to the Mesozoic era, when layers of sedimentary limestone accumulated under water.
这些地质形成日期中生代时期，当层沉积的石灰岩积累下的水。
These geologic formations date to the Mesozoic era, when layers of sedimentary limestone accumulated under water.
应用推荐