Tholeiite

Example:The area is well-known for its beautiful tholeiite volcanic rock formations.

Definition:Any igneous rock formed from lava or magma that has cooled and solidified.

Example:Many of the northern Hawaiian islands are composed of tholeiite that formed over millions of years.

Definition:A naturally formed island found in an ocean that is associated with volcanic activity beneath the sea.

Example:The petrographer carefully analyzed the tholeiite to determine its mineralogy and petrology.

Definition:The branch of geology dealing with the description, naming, and classification of rocks and minerals.

Example:Geologists were studying the igneous formation of a tholeiite lava flow in the remote area.

Definition:A rock or mineral deposit that has formed through the cooling and solidification of magma.

Example:Tholeiite is often associated with seafloor spreading and oceanic island chains.

Definition:A geological phenomenon where tectonic plates move apart, allowing magma to rise and form new crust.

Example:Tholeiite is considered a mantle-derived rock type due to its high proportion of certain elements.

Definition:Originating from the Earth's mantle, which is a layer beneath the crust.

Example:Unlike alkaline basalt, tholeiite is characterized by a lower content of such elements.

Definition:A type of basalt that contains a higher content of alkaline elements such as calcium and magnesium.

Example:The oceanic crust is mostly composed of tholeiite basalts.

Definition:The outermost solid layer of Earth that covers the oceanic mantle.

Example:Tholeiite can form igneous intrusions as well as extrusive rocks.

Definition:A body of igneous rock that has solidified from magma after the latter has intruded into surrounding rock.

Example:While petrocalcite is not specific to tholeiite, it might be found in related petrological studies.

Definition:A form of calcium carbonate named after its prominence in petrological studies.