|
The area that is located in limits of 51°,10' - 51°,30' Western and a 35°,45'- 35°,55' northern and also covered in southern part of the central of Alborz mountains . Mount Rendan is the highest point with 3075 meters and the lowest point is Kan with 1700 meters from the sea level. There is also a river in south east and south which cuts the area formations.
There is a road along the river to part of north-western that pours in Sangan village It is limited to a large land in syncline in north western to south eastern that is said to be an early Eocene formation to late Eocene which includes a complex Rocks: Shale, silt, sand stone, conglomerate, pyroclastites types tuff agglomerate ( Karaj formation) .
The total longitude of syncline is 10 Km, trend is N40 E, and it is asymmetrical syncline. That west limb is 50° to 60° and east limb is 30° to 40°, based on the field studies. This fold is conical and a close classification for limbs. The faults revenue caused a replacement in syncline port differences and as the result the limbs, plunges and other fold elements have moved. Finally in order to get a pattern for deformation, a structural analysis of the area and a field study of the fault, fractures system and bedding have been done, and the results show that there are at least two reacting major stress, first stress direction is NW-SE and the second stress is NNE-SSW.
Key words: Deformation, Sangan, Syncline, stress
|
