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. On Earth, volcanoes...

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

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

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...

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

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...

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

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

especially Jens Franzen, have hypothesized that events much like the 1986 volcanic gas releases at Lake Nyos, Cameroon, could account for the deaths and preservation...

shielded from the immediate blast and its effects, including heat, debris, volcanic gas and ash, in an isolated outdoor jail cell. Four days after the eruption...

The Mount Edziza volcanic complex (MEVC) in British Columbia, Canada, has a history of volcanism that spans more than 7 million years. It has taken place...

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...

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...

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

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

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...

explosive phase, expelling less volcanic gas. For its first two months, the eruption was assigned a rating on the Volcanic Explosivity Index (VEI) of VEI...

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

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

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...

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...

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

A volcanic plug, also called a volcanic neck or lava neck, is a volcanic object created when magma hardens within a vent on an active volcano. When present...

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...

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. 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...

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...

following record snowfall. This event highlighted the risks associated with volcanic gases in the area and prompted investigations into safety protocols, as well...