SUMMARY

On the possibility of using high-precise gravity meter for measurement of the vertical velocity of the Earth’s crust movement in Việt Nam

Cao Đ́nh Triều, Phạm Nam Hưng, Mai Xuân Bách

A new approach in measurement of the vertical velocities of the Earth’s crust movement is based on the high-precise gravity repeated measurements. In this article, the authors present some new results about the vertical velocity movement of the Tam Đảo Mt, Highway N0 6, Hồ Chí Minh City and Sơn La Hydro-power Reservoir on the basis of the repeated gravity measurements. The obtained results have shown that:

1/ The new precise gravity meter can be used in the repeated measurement for determining the velocities of the vertical movement of the Earth’s crust with high accuracy.

2/ The gravity precise measurement can be connected with the GPS observation for studying the Earth’s crust movement. This is a perfect combination for studying the present geodynamics. The repeated gravity measurement allows us to determine the vertical movement with the precision less than 1 mm. Meanwhile, the GPS data give us the detailed values of direction and velocity of horizontal movement.

 

Người biên tập: PGS.TSKH Hà Minh Ḥa.