lesson 6: endogenic processes

• endogenic process


  processes that is formed or occurring beneath the surface of the earth.
• radioactive decay


  releases heat from deep within the earth's mantle and core
• residual heat


  comes from collisions
• compression


  contributes to the earth's internal temperature
• decompression melting


  as rocks rise towards the earth's surface, pressure decreases causing them to melt.
• heat transfer


  magma from deeper in the earth transfers heat to surroundin rocks
• flux melting


  water or carbon dioxide lowers the melting point of rocks
• plutonism


  refers to the processes that occur when magma cools and solidifies beneath the earth's surface
• volcanism


  involves the eruption of magma onto the earth's sirface
• metamorphism


  is a geological process that changes the mineral composition and texture of rocks due to shifts in temperature
• metamorphic rocks


  can have either foliated or non-foliated textures
• intrusive rocks


  form from magma cooling beneath the earth's surface, found deep within the earth's surface
• extrusive rocks


  form from lava cooling on the earth's surface, found on the surface
• compression


  occurs when forces push on a rock from different directions
• tension

  occurs when forces pull on a rock from different directions
• shearing


  occurs when forces push on a rock in opposite directions but not directly opposite