SUMMARY

The extraction of information from modern tectonic characteristics based on
analysis of remote sensing image and GIS spatial processing in the
south of the Central Coastal Region

Nguyễn Ngọc Thạch, Phạm Xuân Cảnh, Hà Thị Bích Phượng, Trần Thanh Hải

Using DEM and documentation sources of time series Landsat images (for the average rate) and Spot (for large aspect ratio), the technique chosen by the various optimized false colour combination for the analysis of the modem fault and lineament, lithology and the modem terrain types have different origins. The impact of modem tectonic movements are shown through the information on the distribution characteristics of the terrain, with the origin and different distribution level, from which the extraction modem fault-fissure system, uplifting or dowlifting structures, and also control the erosion or sedimentation of river banks and coastal zone.

Analysis results showed that information processing modem tectonic motion in the NW-SE direction is the mainstream in the north and south of the region, while at the center, the motion Predominantly in meridian and NE direction with lineament density of modem tectonic faults vary from 0.2-0.6 km/km . That movement is the main reason that make topographic differentiation and dominant shape, distribution law in spatial topography of the modem form from various formation such as river, sea river, marsh, sea wind and sea, as well as the most dominant type of natural disaster in the region.

Người biên tập: PGS.TS Chu Văn Ngợi.