Lava lakes are large volumes of molten lava, usually basaltic, contained in a volcanic vent, crater, or broad depression. The term is used to describe both lava lakes that are wholly or partly molten and those that are solidified (sometimes referred to …

Thermal images of the lava lake in the Halema‘uma‘u pit crater in the Kīlauea caldera In Hawai’i Volcanoes National Park in September and October 2021. Dark areas are rafts of cooled and solidified magmas that are present on the surface of the lake.

Nov 15, 2023 · A lava lake is a pool of molten lava that persists in a vent or crater of a volcano. Lava lakes in Hawaiʻi are among the few that can be found in the world, and they have been a source of scientific study and fascination for many years.

Mar 1, 2024 · Lava lakes, especially the active ones (connected directly to magma chambers), will convect, churn, and recirculate magma. They are like the uppermost level of convection currents that stir molten, gas-rich magmas.

Apr 25, 2017 · Massive volumes of molten lava contained in a broad depression, crater, or volcanic vent is called a lava lake. Lava lakes are usually basaltic in nature and can be wholly or partly molten (melted) or even solidified.

Mount Mazama (Klamath: Tum-sum-ne[5]) is a complex volcano in the western U.S. state of Oregon, in a segment of the Cascade Volcanic Arc and Cascade Range. The volcano is in Klamath County, in the southern Cascades, 60 miles (97 km) north of …

A maar is a broad, low- relief volcanic crater caused by a phreatomagmatic eruption (an explosion which occurs when groundwater comes into contact with hot lava or magma). A maar characteristically fills with water to form a relatively shallow crater lake, which may also be called a …

Apr 29, 2021 · In essence, summit lava lakes are giant pressure gauges of the underlying magma chamber, akin to a liquid barometer. Analysis of the lava chemistry showed that the magmatic dike at Ambrym had intersected a peripheral, isolated pocket of …

Sep 10, 2013 · Beneath the ground surrounding Erta Ale is an enormous pool of active magma. The lake goes through cycles and will cool, form a black layer on top, and then suddenly convect back into liquid...

A maar is formed by one or more underground explosions that occur when hot magma comes into contact with shallow ground water to produce a violent steam explosion. These explosions crush the overlying rocks and launch them into the air along …