Crustal movement-Photo Album-ccnpic


	By forcing the crustal structure change, caused the deflection within the crust tectonic movement that material of crustal movement. According to the movement direction can be divided into horizontal motion and vertical motion. Horizontal movement refers to the composition of the crust rocks along earth's surface, parallel to the direction of the movement. Also called orogenic movement or drape movement. This exercise can often create huge mountains, as well as the drape giant sag, island, trench, etc. Vertical motion, lifting movement, lu, it makes the strata movement for the uplift and adjacent drops, can form plateau, fault block mountain and the USA, the basin and the plain, also can cause the transgression, and that the change. The surface of the earth crust movement control of the sea-land distribution, the influence of various geological effects of the occurrence and development of structure formation, change the original rock, state, so the crustal movement is also called the tectonic movement. According to the movement rule, the crustal movement with horizontal movement, some lifting movement is horizontal motion derived a phenomenon. Crustal movement speed is uneven. Suddenly, the earthquake in the special moments, severe form of exercise, make people feel the crustal movement directly, But generally, often because of crustal movement, progress is slow, not directly perceived by people, but it controls the surface of the passage, affecting all kinds of geological effect, shaping a new structural forms. According to the geological energy source, can be divided into the internal and external force. Internal force of energy from the earth itself, mainly produces radioactive elements of decay. Outside of the energy from the earth's outer, mainly is the solar energy, followed by gravity. In the vast majority of sedimentary rock is the great lakes and oceans, initially formed is level. These levels of strata are according to the next, in the old world, a new layer covering layer distribution in the crust in. But often what we see strata are not the most level, but appear all sorts of change, and some of the changes that occur in the slope, formed the fracture bending, also some produced rupture. This means that the original form of sedimentary rocks are changed. What is the reason for this change to? Is the crustal movement, also called the tectonic movement. By the earth's crust movement refers to the internal forces caused by the change of material slowly within the crust mechanical motion. It makes the surface of the earth, and the changes that occur rock formation of deformation and displacement of the form. Crustal movement into horizontal motion and movements (vertical) movement. Horizontal movement refers to the composition of the substance in the crust of the earth's surface parallel, the movement direction of the earth's crust movement by extrusion, stretching or translation. Even Lifting movement refers to the composition of the substance in the crust of the earth's surface is perpendicular to the direction of movement, namely the crustal rise or fall. Mainly caused by changes in the oceans and land, the terrain changed. Crustal movement that depositional strata occur, cracks, bending, and permanent feature, thus formed the geological structure. So-called geological structure is the crustal movement caused by deformation of rock deformation and appearance (result). Crustal movement is the formation causes of geological structure, geological structure is the result of crustal movement. In the vast majority of sedimentary rock is the great lakes and oceans, initially formed is level. These levels of strata are according to the next, in the old world, a new layer covering layer distribution in the crust in. But often what we see strata are not the most level, but appear all sorts of change, and some of the changes that occur in the slope, formed the fracture bending, also some produced rupture. This means that the original form of sedimentary rocks are changed. What is the reason for this change to? Is the crustal movement, also called the tectonic movement. By the earth's crust movement refers to the internal forces caused by the change of material slowly within the crust mechanical motion. It makes the surface of the earth, and the changes that occur rock formation of deformation and displacement of the form. Crustal movement into horizontal motion and movements (vertical) movement. Horizontal movement refers to the composition of the substance in the crust of the earth's surface parallel, the movement direction of the earth's crust movement by extrusion, stretching or translation. Even Lifting movement refers to the composition of the substance in the crust of the earth's surface is perpendicular to the direction of movement, namely the crustal rise or fall. Mainly caused by changes in the oceans and land, the terrain changed. Crustal movement that depositional strata occur, cracks, bending, and permanent feature, thus formed the geological structure. So-called geological structure is the crustal movement caused by deformation of rock deformation and appearance (result). Crustal movement is the formation causes of geological structure, geological structure is the result of crustal movement. (2) geological structure Composed of crustal rocks have certain characteristics or form of fabric says geological structure. One thing in sediment accumulation or melt when crystallization tectonic stress, the primary structure called rock deformation occurs, the tectonic deformation of the secondary structure called. The basic types of geological structure has four kinds: horizontal structure, lean structure, fold structure and fracture. (1) the level structure, strata, this is in the level of structure in the tectonic movement affected areas or slightly large scope of uniform uplift or falling rock not obvious, deformation. Level of structure is a new rock strata in older. Different locations, with the elevation of the same formation, The same place, old strata in low-lying new stratum, in high position. (2) : refers to tilt with horizontal layers level has certain Angle. Tilt tectonic belt is often a wing or fold-the a dish of faults, also can be large area of non-uniform uplift or decline. This rock remain on the new layer under the old. (3) fold structure: fold strata structure of form is bent. In the crustal rocks in the fold curved scale difference is very big, from the microstructural until the great tectonic basin and to belong to fold structure with slot. In loose deposits, sedimentary metamorphic rock, and even some of the primary igneous rock, have drape flow structure, the development of various pressure can fold formed under the environment of variety, its shape. Fold structure of basic types of two main kinds: anticline and synclinal. The characteristics of anticline bending upwards, center, the kernel part of the older rocks in both new, From the opposite, rock, bend down on both sides, the kernel part of the relatively new in getting old. Without such as rock, anticline chengshan denudation, from the surface of the valley, to see the latest only. If the rock surface by erosion, can appear different age formation outcrop. (4) faulted structures: fracture rock stress occurs due to brittle fracture of structure. According to the adjacent rock fracture surface displacement along, can divide again for joints and faults. When the rock joints are jointed: rock burst, and fracture surface of the rock side when no displacement of the fracture structure. It is common phenomenon, the construction field, general swarms appeared. Family Faults: it happened more obvious with the fracture displacement or fracture surface. Faults are widespread in the crust of geological structure, forms, scale. Thousands of meters deep fault can be extended the longest, fault of hundreds, even thousands of kilometers. According to the footwall fault faults along the direction of relative motion is divided into: the relative decline, (relative), the footwall fault (the reverse, the relative decrease relatively footwall fault (ct) peace move along the fault line in two directions happened relative motion). Reverse fault faults China is a country, earthquake since the 20th century, China earthquake happened 7 above accounted for about one third of the earthquake in China, the death toll of all deaths globally, the fifth 50%, reducing seismic active seismic damage is urgent. Earthquake crustal movement is a special form of the earthquake, the crust is, want to understand and master the law of crustal movement, will try to gather more information from the depths of the crust. At present, our country mainly is the earthquake monitoring stations at the relative changes of single point observation, lack of correlation between each other, so has established an absolute and relative relations of observation, discriminant earthquake precursor is very important. [Back]