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What occurs when rock layers break?
These joints formed when the confining stress was removed from the granite. If the blocks of rock on one or both sides of a fracture move, the fracture is called a fault (figure 11). Sudden motions along faults cause rocks to break and move suddenly. The energy released is an earthquake.
What do you call to the surface where the rocks break?
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. 6 – 12+
What causes surface rupture?
Surface rupture occurs when movement on a fault deep within the earth breaks through to the surface. NOT ALL earthquakes result in surface rupture.
What type of rock formation repeats itself over and over?
Some strata formations repeat themselves such as a sandstone layer followed by a carbonate layer then a sandstone layer followed by a carbonate layer and this will repeat over and over again. When this happens, it is called a rhythmites. Space rock is rocks that come from space. These rocks are called meteorites.
What are some facts about layers of rocks?
Layers of Rocks Facts for Kids: 1 The Earth’s Crust is made up of layers of rocks. 2 Rocks have been used by people for millions of years for weapons and to build things. 3 When force shoots lava out of the volcano, it then becomes magma. 4 Water helps to break down rocks into different pieces.
What happens to the rock strata when it rains?
When there is a normal rock stratum, the strata form horizontal or sideways layers. The rocks will sometimes become deformed because of pressure as there are more and more layers. When there is heavy rain or other strong weather, there can be spaces that happen between the different strata.
How does the rock change shape without fracturing?
The rock will contort and change shape without fracturing. 4. The type of rock also determines the type of deformation. Under similar confining pressures, halite (rock salt) is more susceptible to ductile deformation than is granite, which will more likely fracture.