explain the types rock
Answers
Explanation:
Igneous rocks form when molten rock (magma or lava) cools and solidifies. Sedimentary rocks originate when particles settle out of water or air, or by precipitation of minerals from water. They accumulate in layers. Metamorphic rocks result when existing rocks are changed by heat, pressure, or reactive fluids, such as hot, mineral-laden water. Most rocks are made of minerals containing silicon and oxygen, the most abundant elements in the Earth’s crust.
Diorite
Limestone
Limestone is one of the most widespread sedimentary rocks. Many organisms, from corals to microscopic foraminifera, grow shells composed of carbonates. Most limestone forms when these organisms die and their carbonate shells accumulate in shallow seas.
Shale
two rock types: limestone (left); sandstone (right)
Manhattan schist
Slate
In the Museum’s Hall of Planet Earth, a specimen of gneiss. The rock is mottled with pink, black, and gray-colored mineral content throughout.
Granite Pegmatite
AMNH/R.Mickens
Diabase
Diorite
Limestone
Limestone is one of the most widespread sedimentary rocks. Many organisms, from corals to microscopic foraminifera, grow shells composed of carbonates. Most limestone forms when these organisms die and their carbonate shells accumulate in shallow seas.
Shale
two rock types: limestone (left); sandstone (right)
Manhattan schist
Slate
In the Museum’s Hall of Planet Earth, a specimen of gneiss. The rock is mottled with pink, black, and gray-colored mineral content throughout.
Granite Pegmatite.
Igneous Rocks
Igneous rocks solidify from molten rock (called magma within the Earth and lava on the surface).
EXHIBIT
Sedimentary Rocks
Sedimentary rocks are layered.
EXHIBIT
Metamorphic Rocks
Metamorphic rocks form when sedimentary, igneous, or pre-existing metamorphic rocks are changed by heat, pressure, and chemically...
there are three types of rocks
they are
- ignitions rocks
- sedimentary rocks
- metamorphic rocks
ignitions rocks are formed by the cooling down of lava from volcanic eruptions
sedimentary rocks are formed by minerals from sand
metamorphic rocks are formed by pressure in the inner earth surface
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