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  • Continental Crust Rocks: Types, Composition & Examples
    Continental crust is primarily composed of igneous and metamorphic rocks, with a smaller proportion of sedimentary rocks. Here's a breakdown:

    * Igneous rocks: These form from the cooling and solidification of magma (molten rock) or lava.

    * Granite is the most common igneous rock found in continental crust. It is a light-colored, coarse-grained rock.

    * Diorite is another common igneous rock, also light-colored but with a finer grain.

    * Rhyolite is a volcanic rock, often found in areas of past volcanic activity.

    * Metamorphic rocks: These form when existing rocks (igneous, sedimentary, or even other metamorphic rocks) are transformed by heat, pressure, and chemical reactions.

    * Gneiss is a common metamorphic rock, often formed from granite. It has a banded appearance.

    * Schist is another common metamorphic rock, often formed from shale. It is characterized by its flaky texture.

    * Sedimentary rocks: These form from the accumulation and cementation of sediments, like sand, mud, and shells.

    * Sandstone, formed from cemented sand grains, is a common sedimentary rock found in continental crust.

    * Limestone, formed from the accumulation of marine organisms, is also found in some continental areas.

    It's important to note that the specific types of rocks found in continental crust vary depending on the location and geological history of the area.

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