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metamorphic    音标拼音: [m,ɛtəm'ɔrfɪk]
a. 变化的,变性的,变态的

变化的,变性的,变态的

metamorphic
adj 1: of or relating to metamorphosis (especially of rocks);
"metamorphic stage"; "marble is a metamorphic rock that
takes a high polish" [synonym: {metamorphic}, {metamorphous}]
2: characterized by metamorphosis or change in physical form or
substance [ant: {nonmetamorphic}]

Metamorphic \Met`a*mor"phic\, a. [See {Metamorphosis}.]
1. Subject to change; changeable; variable.
[1913 Webster]

2. Causing a change of structure.
[1913 Webster]

3. (Geol.) Pertaining to, produced by, or exhibiting, certain
changes which minerals or rocks may have undergone since
their original deposition; -- especially applied to the
recrystallization which sedimentary rocks have undergone
through the influence of heat and pressure, after which
they are called metamorphic rocks.
[1913 Webster]


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  • Metamorphic rock | Definition, Formation, Facts | Britannica
    Metamorphic rock, any rock that results from the alteration of preexisting rocks in response to changing conditions, such as variations in temperature, pressure, and mechanical stress, and the addition or subtraction of chemical components
  • What Processes Create Metamorphic Rocks: Heat and Pressure
    Metamorphic rocks form when existing rocks are transformed by heat, pressure, and chemically active fluids, all without fully melting The process starts at roughly 150 to 200 °C and can reach up to 1,100 °C depending on the rock’s composition What makes metamorphism distinct from other rock-forming processes is that the original rock (called the protolith) changes its mineral structure
  • Metamorphism and Metamorphic Rocks: Processes, Types, and Tectonic . . .
    The process results in metamorphic rocks that differ significantly in appearance and composition from their parent rocks Metamorphic rocks are formed from pre-existing rocks, known as parent rocks, through physical and chemical changes
  • Metamorphic rock - Wikipedia
    Metamorphic rocks are one of the three great divisions of all rock types, and so there is a great variety of metamorphic rock types In general, if the protolith of a metamorphic rock can be determined, the rock is described by adding the prefix meta- to the protolith rock name
  • Metamorphic Rocks – Formation, Types, Examples
    Learn about metamorphic rocks in geology Discover how they form, the types, examples, and how to identify them
  • 11. 4: Types of Metamorphism and Where They Occur
    The type and intensity of the metamorphism, and width of the metamorphic aureole that develops around the magma body, will depend on a number of factors, including the type of country rock, the temperature of the intruding body, the size of the body, and the volatile compounds within the body (Figure 10 29)
  • Metamorphic Rocks – Definition, Formation, Types, Examples
    Metamorphic rocks form due to the transformation of preexisting rocks in response to environmental changes such as heat, high pressure, and mechanical stress The parent rock can be sedimentary, igneous, or even a different sort of metamorphic rock
  • What are metamorphic rocks? | U. S. Geological Survey
    Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors Conditions like these are found deep within the Earth or where tectonic plates meet
  • Metamorphic Rocks - Education
    Metamorphic rocks start as one type of rock and—with pressure, heat, and time—gradually change into a new type of rock
  • Metamorphic Rocks - Geology (U. S. National Park Service)
    Metamorphic rocks form when high temperatures and pressure act on a rock to alter its physical and chemical properties (metamorphism means 'to change form') These conditions often stretch, twist and fold the rock as it cools





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