Summary
Gravity model of the lithosphere of ViÖt Nam and adjacent areas along some characteristic lines
Cao §×nh TriÒu
In this article the author has established the complex method for analyzing and interpreting the gravitational data to study on the density model of the lithosphere of ViÖt Nam and adjacent areas.
Based on the obtained results, the following conclusions can be made:
1/ The thickness of the lithosphere in ViÖt Nam varies in the range from 50-60 km to 100-120 km.
2/ The average density value of the sedimentary cover reaches up to 2,29 - 2,63 g/cm2 while the average density of the crystalline cover is 2,87 - 2,96 g/cm2 and of the upper mantle is 3,35 - 3,37 g/cm2.
3/ There may be a subduction zone? existing in the coastal area of Central ViÖt Nam.