Volcanic gases are gases given off by active (or, at times, by dormant) volcanoes. These include gases trapped in cavities (vesicles) in volcanic rocks...
23 KB (2,767 words) - 13:56, 23 May 2024
Mammoth Mountain (section Volcanic gas discharge)
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...
20 KB (1,787 words) - 05:22, 14 August 2024
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...
25 KB (3,257 words) - 17:21, 22 April 2024
main types of volcanic eruption: Magmatic eruptions are the most well-observed type of eruption. They involve the decompression of gas within magma that...
75 KB (7,663 words) - 20:36, 31 August 2024
Volcanism (redirect from Volcanic activity)
Volcanism, vulcanism, volcanicity, or volcanic activity is the phenomenon where solids, liquids, gases, and their mixtures erupt to the surface of a solid-surface...
43 KB (4,881 words) - 13:21, 31 August 2024
Ol Doinyo Lengai (section Volcanic gases)
plumbing system is complex, involving regional tectonic structures. Volcanic gas sampled at Ol Doinyo Lengai consists mostly of water vapor and carbon...
33 KB (3,671 words) - 23:25, 31 August 2024
Hydrogen sulfide (redirect from Rotten egg gas)
is done by sulfate-reducing microorganisms. It also occurs in volcanic gases, natural gas deposits, and sometimes in well-drawn water. Hydrogen sulfide...
76 KB (7,951 words) - 12:35, 30 August 2024
Vog (redirect from Volcanic fog)
000–4,000 tons of sulfur dioxide (SO2) every day. Vog is created when volcanic gases (primarily oxides of sulfur) react with sunlight, oxygen and moisture...
9 KB (920 words) - 20:54, 18 July 2024
hot volcanic gases and vapors are emitted, without any accompanying liquids or solids. Fumaroles are characteristic of the late stages of volcanic activity...
18 KB (1,945 words) - 02:55, 15 August 2024
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...
22 KB (2,141 words) - 16:06, 17 August 2024
Explosive eruption (redirect from Volcanic explosion)
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...
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including particles larger than 2 mm. Volcanic ash is formed during explosive volcanic eruptions when dissolved gases in magma expand and escape violently...
81 KB (9,833 words) - 01:14, 28 August 2024
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...
24 KB (2,856 words) - 20:35, 6 April 2024
Messel pit (section Volcanic gas releases)
scientists[who?] hypothesize[example needed] that events much like the 1986 volcanic gas releases at Lake Nyos, Cameroon, could account for the large deposition...
26 KB (2,858 words) - 00:24, 6 March 2024
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...
8 KB (835 words) - 04:26, 28 June 2024
bowl-shaped feature containing one or more vents. During volcanic eruptions, molten magma and volcanic gases rise from an underground magma chamber, through a...
3 KB (355 words) - 17:34, 14 July 2024
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...
47 KB (3,395 words) - 06:43, 13 April 2024
Limnic eruption (category Volcanic eruption types)
lake waters, forming a gas cloud capable of asphyxiating wildlife, livestock, and humans. Scientists believe earthquakes, volcanic activity, and other explosive...
24 KB (2,653 words) - 10:43, 25 August 2024
the order of a few nanoseconds. Greenhouse gas List of gases Natural gas Volcanic gas Breathing gas Wind "Gas". Merriam-Webster. 7 August 2023. This early...
52 KB (6,596 words) - 02:10, 8 August 2024
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...
6 KB (532 words) - 04:57, 16 October 2023
Mount Vesuvius (category Campanian volcanic arc)
other settlements. The eruption ejected a cloud of stones, ash and volcanic gases to a height of 33 km (21 mi), erupting molten rock and pulverized pumice...
68 KB (7,640 words) - 13:28, 31 August 2024
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...
2 KB (180 words) - 23:34, 31 January 2024
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...
15 KB (1,930 words) - 04:34, 19 February 2024
David A. Johnston (category Deaths in volcanic eruptions)
was a meticulous and talented scientist, known for his analyses of volcanic gases and their relationship to eruptions. This, along with his enthusiasm...
55 KB (6,091 words) - 16:36, 26 August 2024
Miyake-jima (redirect from Gas Mask Island)
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...
16 KB (1,288 words) - 04:13, 6 August 2024
2018 lower Puna eruption (redirect from 2018 Hawaii volcanic eruption)
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...
67 KB (6,053 words) - 16:42, 18 April 2024
Stromboli (category Volcanic islands)
when volcanic activity is high: an effusive eruption occurred in 2002, the first in 17 years, and again in 2003, 2007, and 2013–14. Volcanic gas emissions...
15 KB (1,388 words) - 14:12, 22 August 2024
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...
9 KB (917 words) - 10:21, 19 January 2024
The Wells Gray-Clearwater volcanic field, also called the Clearwater Cone Group, is a potentially active monogenetic volcanic field in east-central British...
39 KB (3,476 words) - 17:26, 26 August 2024