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The Rock

Across
Diorite formed deep within the Earth's crust from cooling magma that never made it to the surface.
formed as magma cooled slowly in the crust.
formed under extreme pressure as a result of the two landmasses that formed supercontinent Pangaea.
formed at the contact zone between intrusions of granitic magma bodies and carbonate sedimentary rocks such as limestone and dolostone.
Sandstone forms over the course of centuries, as deposits of sand accumulate in rivers, lakes or on the ocean floor, and the sand blends with calcite or quarts and then undergoes compression.
form by the postdepositional alteration of lime mud and limestone by magnesium-rich groundwater.
They are formed by the cooling of molten magma on the earth's surface.
made of volcanic ash ejected from a vent during a volcanic eruption.
forms of calcium carbonate (CaCO3). ... Most cave systems are through limestone bedrock.
formed when rocks are close to some molten magma,
formed layers at the bottom of the swamps.
Rhyolite is made up of quartz, plagioclase, and sanidine, with minor amounts of hornblende and biotite.
forms when limestone is subjected to the heat and pressure of metamorphism.
formed when quartz-rich sandstone or chert has been exposed to high temperatures and pressures.
form by the postdepositional alteration of lime mud and limestone by magnesium-rich groundwater.
forms during explosive volcanic eruptions.
Down
forms from the slow crystallization of magma below Earth's surface.
forms as an extrusive rock, such as a lava flow, but can also form in small intrusive bodies, such as an igneous dike or a thin sill. It has a composition similar to gabbro.
form at ocean ridges and oceanic hot spots from partial melting of basaltic rocks. It can also form during eruptions at continental plate interiors where deep-source magma melts continental crust or mixes with continental magmas.
Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension.
Peridotite is derived from the Earth's mantle, either as solid blocks and fragments, or as crystals accumulated from magmas that formed in the mantle.
form during the final stage of a magma's crystallization
forms when magma containing abundant dissolved gas flows from a volcano or is blown out during an eruption.
formed as an extrusive igneous rock.
forms from mudstone or shale.