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HomeHomework HelpgeologyMetamorphic Processes and Products

Metamorphic Processes and Products

Metamorphic processes refer to the geological transformations that occur when pre-existing rocks undergo changes in mineralogy, texture, and chemical composition due to high pressure, temperature, and fluid activity. The products of these processes are metamorphic rocks, which exhibit distinct characteristics such as foliation or non-foliated textures resulting from the reorganization of minerals.

intermediate
3 hours
Geology
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Overview

Metamorphic processes are essential in the rock cycle, transforming existing rocks into new forms through heat, pressure, and chemical activity. This transformation results in a variety of metamorphic rocks, each with unique characteristics based on their parent rocks and the conditions they experie...

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Key Terms

Metamorphism
The process by which existing rocks are transformed into metamorphic rocks.

Example: The metamorphism of shale can produce slate.

Foliation
The alignment of mineral grains in a rock, giving it a layered appearance.

Example: Schist exhibits strong foliation.

Non-foliated Rocks
Metamorphic rocks that do not have a layered or banded appearance.

Example: Marble is a non-foliated metamorphic rock.

Parent Rock
The original rock from which a metamorphic rock forms.

Example: Granite is the parent rock of gneiss.

Heat
A key factor in metamorphism that causes mineral changes.

Example: Heat from magma can metamorphose surrounding rocks.

Pressure
The force applied to rocks that can lead to metamorphism.

Example: Increased pressure can cause foliation in schist.

Related Topics

Igneous Processes
Study of how igneous rocks form from molten material and their characteristics.
intermediate
Sedimentary Processes
Exploration of how sedimentary rocks are formed from sediments and their environments.
intermediate
Rock Cycle
Understanding the continuous process of rock formation and transformation.
beginner

Key Concepts

MetamorphismFoliationNon-foliated RocksParent Rocks