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Zorluk: KolayRocks, Minerals, and Soil

When sedimentary limestone is subjected to intense heat and tectonic pressure deep within Earth's crust, its calcite minerals recrystallize to form marble. Based on this transformation process, marble is classified as which type of rock?

  1. A
    Igneous rock
  2. Metamorphic rockCevap
  3. C
    Sedimentary rock
  4. D
    Extrusive volcanic rock

Cevap

Metamorphic rock
Metamorphic rocks develop when pre-existing sedimentary, igneous, or older metamorphic rocks are altered by intense heat and pressure within Earth's crust without melting. When limestone undergoes this process, its calcite grains recrystallize into a denser, interlocking crystalline texture, forming marble.

Adım Adım Çözüm

1
Identify the parent material and geological processes described in the question.
Limestone (a sedimentary rock) is subjected to intense underground heat and pressure without melting, causing recrystallization into marble.
Identifying the formation mechanism determines the rock classification.
2
Match the formation mechanism to the correct major rock classification.
Rocks created by altering pre-existing rocks through heat and pressure are categorized as metamorphic rocks.
Metamorphism refers specifically to solid-state mineral and textural alterations under elevated temperatures and pressures.

Anahtar Kavram

Metamorphic rock formation and classification through heat and pressure alteration
Tahmini Süre:45s
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Konular

Rocks, Minerals, and Soil

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