Volcanic gases are gases given off by active (or, at times, by dormant) volcanoes. These include gases trapped in cavities (vesicles) in volcanic rocks...

a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. The process that...

viscous to allow easy escape of volcanic gases. As a consequence, the tremendous internal pressures of the trapped volcanic gases remain and intermingle in...

eruptions that ended 57,000 years ago. Mammoth still produces hazardous volcanic gases that kill trees. Mammoth Mountain is a lava dome complex in Mono County...

scientists[who?] hypothesize[example needed] that events much like the 1986 volcanic gas releases at Lake Nyos, Cameroon, could account for the large deposition...

main types of volcanic eruption: Magmatic eruptions are the most well-observed type of eruption. They involve the decompression of gas within magma that...

Volcanism, vulcanism, volcanicity, or volcanic activity is the phenomenon where solids, liquids, gases, and their mixtures erupt to the surface of a solid-surface...

is done by sulfate-reducing microorganisms. It also occurs in volcanic gases, natural gas deposits, and sometimes in well-drawn water. Hydrogen sulfide...

plumbing system is complex, involving regional tectonic structures. Volcanic gas sampled at Ol Doinyo Lengai consists mostly of water vapor and carbon...

including particles larger than 2 mm. Volcanic ash is formed during explosive volcanic eruptions when dissolved gases in magma expand and escape violently...

narrow mass difference during analysis.    Noble gas measurements can be obtained from sources like volcanic vents, springs, and geothermal wells following...

A volcanic hazard is the probability a volcanic eruption or related geophysical event will occur in a given geographic area and within a specified window...

multi-component gas analyzer system (Multi-GAS) is an instrument package used to take real-time high-resolution measurements of volcanic gas plumes. Multi-GAS measurements...

hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcanic activity...

lake waters, forming a gas cloud capable of asphyxiating wildlife, livestock, and humans. Scientists believe earthquakes, volcanic activity, and other explosive...

multi-component gas analyzer system (Multi-GAS) is an instrument package used to take real-time high-resolution measurements of volcanic gases. A Multi-GAS package...

The Auckland volcanic field is an area of monogenetic volcanoes covered by much of the metropolitan area of Auckland, New Zealand's largest city, located...

a volcanic eruption of the most violent type. A notable example is the 1980 eruption of Mount St. Helens. Such eruptions result when sufficient gas has...

Volcanic cones are among the simplest volcanic landforms. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone...

portal Science portal Greenhouse gas Landfill gas utilization List of gases Natural gas Volcanic gas Breathing gas Wind "Gas". Merriam-Webster. 7 August 2023...

bowl-shaped feature containing one or more vents. During volcanic eruptions, molten magma and volcanic gases rise from an underground magma chamber, through a...

bowl. It is also known as "Mount Pipe" (パイプ山, paipu-yama), since the volcanic gas and water vapor that rolls in from the summit, alongside the rest of...

increase in the levels of toxic gases in the air. Volcanic gas emissions from this volcano are measured by a Multi-Component Gas Analyzer System, which detects...

into lakes. Toxic volcanic gas has caused fatalities and is a hazard at several craters. On 20 February 1979, 149 people died of gas poisoning in Pekisaran...

an area of poisonous volcanic gas near the Kikhpinych volcano in Russia The Valley of Death, an area of poisonous volcanic gas near the Tangkuban Perahu...

problems, lesions, and paralysis as a result of the gas cloud. It is a possibility that other volcanic gases were released along with the CO2, as some survivors...

Outbreaks of lava fountains up to 300 feet (90 m) high, lava flows, and volcanic gas in the Leilani Estates subdivision were preceded by earthquakes and ground...

travertine. The material that is expelled in a volcanic eruption can be classified into three types: Volcanic gases, a mixture made mostly of steam, carbon dioxide...

into the air. Each episode thus releases volcanic gases, sometimes as frequently as a few minutes apart. Gas slugs can form as deep as 3 kilometers, making...

This is a list of volcanic eruptions in the 21st century with a volcanic explosivity index (VEI) of 4 or higher, and smaller eruptions that resulted in...