METASOMATISM Meaning and
Definition
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Metasomatism is a geological process that involves the chemical alteration of rocks through the introduction or removal of certain elements or compounds. This process typically occurs within the Earth's crust and upper mantle, where rocks undergo various changes due to the influence of fluids, such as hydrothermal solutions or volcanic gases.
During metasomatism, the composition and properties of the rock are modified, including its mineralogy and texture. These changes are primarily driven by the exchange of chemical constituents between the fluid and the rock. The introduction of new elements can lead to the formation of new minerals, while the removal of elements may cause the dissolution or transformation of existing minerals.
Metasomatism can occur through several mechanisms, such as diffusion, infiltration, and replacement. Diffusion refers to the movement of ions within the rock, leading to the redistribution of elements. Infiltration occurs when fluids permeate through the rock's pores or fractures, carrying and depositing new elements. Replacement involves the complete or partial substitution of one mineral by another.
This geological process is significant as it plays a crucial role in the formation and alteration of various ore deposits, including those containing valuable minerals such as gold, silver, and copper. Furthermore, metasomatism can also impact the overall rock structure, affecting the stability and integrity of geological formations. The study of metasomatism is important both in understanding Earth's geological history and for potential economic implications related to mineral exploration and extraction.
Common Misspellings for METASOMATISM
- netasomatism
- ketasomatism
- jetasomatism
- mwtasomatism
- mstasomatism
- mdtasomatism
- mrtasomatism
- m4tasomatism
- m3tasomatism
- merasomatism
- mefasomatism
- megasomatism
- meyasomatism
- me6asomatism
- me5asomatism
- metzsomatism
- metssomatism
- metwsomatism
- metqsomatism
- metaaomatism
Etymology of METASOMATISM
The word "metasomatism" is derived from two Greek roots: "meta", meaning "change" or "beyond", and "soma", meaning "body" or "substance". The term was first used in the field of geology to describe a process of mineral alteration or replacement within rocks. It refers to the chemical transformation of rock through reactions with fluids or melts, resulting in the formation of new minerals or the replacement of existing ones.
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