Look up phreatic in Wiktionary, the free dictionary.
Phreatic is a term used in hydrology to refer to aquifers, in speleology to refer to cave passages, and in volcanology to refer to a type of volcanic eruption.
Look up phreatic in Wiktionary, the free dictionary. A phreatic eruption, also called a phreatic explosion, ultravulcanian eruption or steam-blast eruption...
Look up phreatic in Wiktionary, the free dictionary. Phreatic is a term used in hydrology to refer to aquifers, in speleology to refer to cave passages...
The phreatic zone, saturated zone, or zone of saturation, is the part of an aquifer, below the water table, in which relatively all pores and fractures...
is called the Phreatic line. Hydrostatic pressure acts below the phreatic line whereas atmospheric pressure exists above the phreatic line. This line...
involve the decompression of gas within magma that propels it forward. Phreatic eruptions are driven by the superheating of steam due to the close proximity...
until a zone of saturation is reached. Below the water table, in the phreatic zone (zone of saturation), layers of permeable rock that yield groundwater...
everything in their path". "Dangerous water vapor: phreatic eruptions". "VHP Photo Glossary: Phreatic eruption". Volcano Hazards Program. U.S. Geological...
Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all...
water. They differ from exclusively magmatic eruptions and phreatic eruptions. Unlike phreatic eruptions, the products of phreatomagmatic eruptions contain...
volcanic earthquakes rose to the same level as those prior to the 2008 phreatic explosion. At 5:32 a.m. on October 28, a minor ash explosion lasting for...
zone, is the part of Earth between the land surface and the top of the phreatic zone, the position at which the groundwater (the water in the soil's pores)...
rises through water-saturated rocks, which causes a phreatic eruption. Volcanic craters from phreatic eruptions often occur on plains away from other obvious...
subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish, and hypogean fish.[page needed] There are more than 200 scientifically...
The Earth's crust can be divided into two regions: the saturated zone or phreatic zone (e.g., aquifers, aquitards, etc.), where all available spaces are...
Tabon-Tabon Bulusan is generally known for its sudden, steam-driven or phreatic explosions. It has erupted 15 times since 1885 and is the fourth most active...
to the southwest and was accompanied by a plinian eruption. Four major phreatic eruptions have occurred during the past 5,000 years, two of them in historical...
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