Which of following is NOT a metamorphic agent?
Why are hurricane winds a threat to human safety?
What happens when a hurricane makes a landfall?
8.2 List four agents that drive metamorphism. Heat, pressure, directional stress, and fluids which are chemically active.
The most important agents of metamorphism include temperature, pressure, and fluids.
Weathering (breaking down rock) and erosion (transporting rock material) at or near the earth’s surface breaks down rocks into small and smaller pieces. Extreme pressure from burial, increasing temperature at depth, and a lot of time, can alter any rock type to form a metamorphic rock.
Metamorphism is a process that changes preexisting rocks into new forms because of increases in temperature, pressure, and chemically active fluids. Metamorphism may affect igneous, sedimentary, or other metamorphic rocks.
AGENTS OF METAMORPHISM – The agents of metamorphism include heat, pressure (stress), and chemically active fluids. During metamorphism, rocks are often subjected to all three metamorphic agents simultaneously.
Burial Metamorphism The main minerals produced are often the Zeolites. Burial metamorphism overlaps, to some extent, with diagenesis, and grades into regional metamorphism as temperature and pressure increase.
Explanation: Metamorphism occurs when solid rock changes in composition and/or texture without the mineral crystals melting, which is how igneous rock is generated. Rock texture is changed by heat, confining pressure, and a type of pressure called directed stress.
From the given terms, lithification is the only one not a metamorphic agent which is choice a. Lithification is the process where sediments are formed into rock by compaction and cementation. This is one of the processes that form sedimentary rock.