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The mineralogical and structural adjustment of solid rocks to physical and chemical conditions
that have been imposed at depths below the near surface zones of weathering and diagenesis and
which differ from conditions under which the rocks in question originated.
The word "Metamorphism" comes from the Greek: meta = change, morph = form, so
metamorphism means to change form. In geology this refers to the changes in mineral
assemblage and texture that result from subjecting a rock to conditions such pressures,
temperatures, and chemical environments different from those under which the rock originally
formed.
There are two major kinds of metamorphism: regional and contact.
Regional metamorphism. Most metamorphic rocks are the result of regional metamorphism (also
called dynamothermal metamorphism). These rocks were typically exposed to tectonic forces
and associated high pressures and temperatures. They are usually foliated and deformed and
thought to be remnants of ancient mountain ranges.
Contact metamorphism. Contact metamorphism (also called thermal metamorphism) is the
process by which the country rock that surrounds a hot magma intrusion is metamorphosed by
the high heat flow coming from the intrusion. The zone of metamorphism that surrounds the
intrusion is called the halo (or aureole) and rarely extends more than 100 meters into the country
rock. Geostatic pressure is usually a minor factor, since contact metamorphism generally takes
place less than 10 kilometers from the surface.Metamorphism is defined as follows:
The mineralogical and structural adjustment of solid rocks to physical and chemical conditions
that have been imposed at depths below the near surface zones of weathering and diagenesis
and which differ from conditions under which the rocks in question originated.
The word "Metamorphism" comes from the Greek: meta = change, morph = form, so
metamorphism means to change form. In geology this refers to the changes in mineral
assemblage and texture that result from subjecting a rock to conditions such pressures,
temperatures, and chemical environments different from those under which the rock originally
formed.
There are two major kinds of metamorphism: regional and contact.
Regional metamorphism. Most metamorphic rocks are the result of regional metamorphism
(also called dynamothermal metamorphism). These rocks were typically exposed to tectonic
forces and associated high pressures and temperatures. They are usually foliated and deformed
and thought to be remnants of ancient mountain ranges.
Contact metamorphism. Contact metamorphism (also called thermal metamorphism) is the
process by which the country rock that surrounds a hot magma intrusion is metamorphosed by
the high heat flow coming from the intrusion. The zone of metamorphism that surrounds the
intrusion is called the halo (or aureole) and rarely extends more than 100 meters into the
country rock. Geostatic pressure is usually a minor factor, since contact metamorphism
generally takes place less than 10 kilometers from the surface.
Solution
The mineralogical and structural adjustment of solid rocks to physical and chemical conditions
that have been imposed at depths below the near surface zones of weathering and diagenesis and
which differ from conditions under which the rocks in question originated.
The word "Metamorphism" comes from the Greek: meta = change, morph = form, so
metamorphism means to change form. In geology this refers to the changes in mineral
assemblage and texture that result from subjecting a rock to conditions such pressures,
temperatures, and chemical environments different from those under which the rock originally
formed.
There are two major kinds of metamorphism: regional and contact.
Regional metamorphism. Most metamorphic rocks are the result of regional metamorphism (also
called dynamothermal metamorphism). These rocks were typically exposed to tectonic forces
and associated high pressures and temperatures. They are usually foliated and deformed and
thought to be remnants of ancient mountain ranges.
Contact metamorphism. Contact metamorphism (also called thermal metamorphism) is the
process by which the country rock that surrounds a hot magma intrusion is metamorphosed by
the high heat flow coming from the intrusion. The zone of metamorphism that surrounds the
intrusion is called the halo (or aureole) and rarely extends more than 100 meters into the country
rock. Geostatic pressure is usually a minor factor, since contact metamorphism generally takes
place less than 10 kilometers from the surface.Metamorphism is defined as follows:
The mineralogical and structural adjustment of solid rocks to physical and chemical conditions
that have been imposed at depths below the near surface zones of weathering and diagenesis
and which differ from conditions under which the rocks in question originated.
The word "Metamorphism" comes from the Greek: meta = change, morph = form, so
metamorphism means to change form. In geology this refers to the changes in mineral
assemblage and texture that result from subjecting a rock to conditions such pressures,
temperatures, and chemical environments different from those under which the rock originally
formed.
There are two major kinds of metamorphism: regional and contact.
Regional metamorphism. Most metamorphic rocks are the result of regional metamorphism
(also called dynamothermal metamorphism). These rocks were typically exposed to tectonic
forces and associated high pressures and temperatures. They are usually foliated and deformed
and thought to be remnants of ancient mountain ranges.
Contact metamorphism. Contact metamorphism (also called thermal metamorphism) is the
process by which the country rock that surrounds a hot magma intrusion is metamorphosed by
the high heat flow coming from the intrusion. The zone of metamorphism that surrounds the
intrusion is called the halo (or aureole) and rarely extends more than 100 meters into the
country rock. Geostatic pressure is usually a minor factor, since contact metamorphism
generally takes place less than 10 kilometers from the surface.

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The mineralogical and structural adjustment of solid rocks to physic.pdf

  • 1. The mineralogical and structural adjustment of solid rocks to physical and chemical conditions that have been imposed at depths below the near surface zones of weathering and diagenesis and which differ from conditions under which the rocks in question originated. The word "Metamorphism" comes from the Greek: meta = change, morph = form, so metamorphism means to change form. In geology this refers to the changes in mineral assemblage and texture that result from subjecting a rock to conditions such pressures, temperatures, and chemical environments different from those under which the rock originally formed. There are two major kinds of metamorphism: regional and contact. Regional metamorphism. Most metamorphic rocks are the result of regional metamorphism (also called dynamothermal metamorphism). These rocks were typically exposed to tectonic forces and associated high pressures and temperatures. They are usually foliated and deformed and thought to be remnants of ancient mountain ranges. Contact metamorphism. Contact metamorphism (also called thermal metamorphism) is the process by which the country rock that surrounds a hot magma intrusion is metamorphosed by the high heat flow coming from the intrusion. The zone of metamorphism that surrounds the intrusion is called the halo (or aureole) and rarely extends more than 100 meters into the country rock. Geostatic pressure is usually a minor factor, since contact metamorphism generally takes place less than 10 kilometers from the surface.Metamorphism is defined as follows: The mineralogical and structural adjustment of solid rocks to physical and chemical conditions that have been imposed at depths below the near surface zones of weathering and diagenesis and which differ from conditions under which the rocks in question originated. The word "Metamorphism" comes from the Greek: meta = change, morph = form, so metamorphism means to change form. In geology this refers to the changes in mineral assemblage and texture that result from subjecting a rock to conditions such pressures, temperatures, and chemical environments different from those under which the rock originally formed. There are two major kinds of metamorphism: regional and contact. Regional metamorphism. Most metamorphic rocks are the result of regional metamorphism (also called dynamothermal metamorphism). These rocks were typically exposed to tectonic forces and associated high pressures and temperatures. They are usually foliated and deformed and thought to be remnants of ancient mountain ranges. Contact metamorphism. Contact metamorphism (also called thermal metamorphism) is the process by which the country rock that surrounds a hot magma intrusion is metamorphosed by the high heat flow coming from the intrusion. The zone of metamorphism that surrounds the
  • 2. intrusion is called the halo (or aureole) and rarely extends more than 100 meters into the country rock. Geostatic pressure is usually a minor factor, since contact metamorphism generally takes place less than 10 kilometers from the surface. Solution The mineralogical and structural adjustment of solid rocks to physical and chemical conditions that have been imposed at depths below the near surface zones of weathering and diagenesis and which differ from conditions under which the rocks in question originated. The word "Metamorphism" comes from the Greek: meta = change, morph = form, so metamorphism means to change form. In geology this refers to the changes in mineral assemblage and texture that result from subjecting a rock to conditions such pressures, temperatures, and chemical environments different from those under which the rock originally formed. There are two major kinds of metamorphism: regional and contact. Regional metamorphism. Most metamorphic rocks are the result of regional metamorphism (also called dynamothermal metamorphism). These rocks were typically exposed to tectonic forces and associated high pressures and temperatures. They are usually foliated and deformed and thought to be remnants of ancient mountain ranges. Contact metamorphism. Contact metamorphism (also called thermal metamorphism) is the process by which the country rock that surrounds a hot magma intrusion is metamorphosed by the high heat flow coming from the intrusion. The zone of metamorphism that surrounds the intrusion is called the halo (or aureole) and rarely extends more than 100 meters into the country rock. Geostatic pressure is usually a minor factor, since contact metamorphism generally takes place less than 10 kilometers from the surface.Metamorphism is defined as follows: The mineralogical and structural adjustment of solid rocks to physical and chemical conditions that have been imposed at depths below the near surface zones of weathering and diagenesis and which differ from conditions under which the rocks in question originated. The word "Metamorphism" comes from the Greek: meta = change, morph = form, so metamorphism means to change form. In geology this refers to the changes in mineral assemblage and texture that result from subjecting a rock to conditions such pressures, temperatures, and chemical environments different from those under which the rock originally formed. There are two major kinds of metamorphism: regional and contact. Regional metamorphism. Most metamorphic rocks are the result of regional metamorphism (also called dynamothermal metamorphism). These rocks were typically exposed to tectonic
  • 3. forces and associated high pressures and temperatures. They are usually foliated and deformed and thought to be remnants of ancient mountain ranges. Contact metamorphism. Contact metamorphism (also called thermal metamorphism) is the process by which the country rock that surrounds a hot magma intrusion is metamorphosed by the high heat flow coming from the intrusion. The zone of metamorphism that surrounds the intrusion is called the halo (or aureole) and rarely extends more than 100 meters into the country rock. Geostatic pressure is usually a minor factor, since contact metamorphism generally takes place less than 10 kilometers from the surface.