Michael Smith, Author at Earth Know

Lava Lake Meaning, Examples, and How They Form

A lava lake is a large volume of exposed molten rock (magma) confined in a crater, vent, or a large

The law or principle of cross-cutting relationships states that a rock body, geological process or feature that disrupts, penetrates, deforms,

Norite is a coarse-grained plutonic rock with mainly calcic plagioclase, orthopyroxene, and a minor amount of other minerals. Plutonic rocks

Obsidian uses include making prehistoric stone tools. Photo credit: Ismoon (talk) 21:26, 8 June 2018 (UTC), CC BY-SA 4.0, via Wikimedia Commons.

Obsidian is a natural rhyolite volcanic glass that forms when silica-rich, highly viscous lava or magma rapidly cools. A natural

Overwhelming evidence shows global warming is happening, and the rate is exponentially increasing. Lindsey & Dahlman (2024) note that since

Dacite is a fine-grained, light-colored volcanic rock with a felsic composition. Felsic rocks are silica-rich and dominated by light-colored elements

Dacite and andesite are both fine-grained volcanic and extrusive igneous rocks. Volcanic or extrusive igneous rocks form when magma cools

Monzonite is a coarse-grained, plutonic, or intrusive igneous rock with an intermediate composition. Plutonic or intrusive rocks form deep inside

Quartz monzonite is a coarse-grained, felsic plutonic, or intrusive igneous rock. Felsic rocks are light-colored rocks rich in lighter elements