Natural environment

Natural environment

Related to any physical feature of the earth's natural environment.

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Natural environment > Volcano

pleistocene

Natural environment; Volcano

A epoch in Earth history from about 2-5 million years to 10,000 years ago. Also refers to the rocks and sediment deposited in that epoch.

plinian eruption

Natural environment; Volcano

An explosive eruption in which a steady, turbulent stream of fragmented magma and magmatic gases is released at a high velocity from a vent. Large volumes of tephra and tall ...

plug

Natural environment; Volcano

Solidified lava that fills the conduit of a volcano. It is usually more resistant to erosion than the material making up the surrounding cone, and may remain standing as a ...

plug dome

Natural environment; Volcano

The steep-sided, rounded mound formed when viscous lava wells up into a crater and is too stiff to flow away. It piles up as a dome-shaped mass, often completely filling the vent ...