Examples of 'phreatic' in a sentence
Meaning of "phreatic"
Phreatic (adjective): Relating to underground water systems or processes, often used in geology or hydrology contexts to describe specific types of geological formations
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- Of or pertaining to ground water; (volcanology) involving explosively rapid heating of ground water by magma.
How to use "phreatic" in a sentence
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phreatic
More recent eruptions have been phreatic in type.
The phreatic eruption is difficult to detect.
It has created a small phreatic crater at the summit.
Phreatic groundwater exists in a permeable layer above an impermeable layer.
Almost all of its eruptions involved phreatic activity.
Regular phreatic water condition.
The eruptions of this period were likely phreatic steam explosions.
Belt of phreatic fluctuation.
All are most likely phreatic.
Other zones above the phreatic level may be partially saturated.
They differ from exclusively magmatic eruptions and phreatic eruptions.
Depleted phreatic surface.
The eruption was phreatic.
The phreatic zone defines the lower edge of the vadose zone.
Consideration on the phreatic water level.
See also
Phreatic explosions can be accompanied by carbon dioxide or hydrogen sulfide gas emissions.
This eruption was a phreatic eruption.
Phreatic or phreatomagmatic explosions could occur any time and would pose a significant risk.
The lakes have been a source of minor phreatic eruptions in historical time.
A subsurface water that lies below the water table in the saturated or phreatic zone.
It has seen activity ranging from phreatic eruptions to ash flows.
Mild phreatic eruptions of Tacaná took place in historical times.
What supposes an important degradation of the phreatic layers of the floor.
Volcanic craters from phreatic eruptions often occur on plains away from other obvious volcanoes.
An area where water fills these spaces is called a phreatic zone or saturated zone.
In a phreatic explosion, magma is not directly involved.
The lake have been a source of minor phreatic eruptions in historical time.
Phreatic eruption stearn or hot water eruption, or a combination.
Pore water pressures below the phreatic level of the groundwater are measured with piezometers.
Small local earthquakes preceded the event and stopped following the phreatic explosion.
Historical eruptions have consisted of phreatic explosions from the acidic crater lakes or their margins.
Historical eruptions have consisted of moderate Vulcanian and phreatic explosions.
As a result, a phreatic explosion occurred that ejected resurgent ash.
The seismic records showed no signals associated with a phreatic eruption or sudden gas output.
Many times, these phreatic explosions are precursors to renewed activity at a volcano.
The lake may be a landslide scar, or a crater left by a phreatic explosion.
There is underneath a phreatic layer … there is nothing like it in the whole region.
These structures were subsequently destroyed by either collapse or steam explosions ( see phreatic eruption ).
A phreatic eruption, water flashes into steam and triggers a massive explosion.
At that point, the previously consistent phreatic activity had become intermittent.
Phreatic or steam-blast eruptions happen when magma encounters shallow groundwater.
In the current scenario, the probability of triggering phreatic explosions or ash emissions increases.
Subglacial and phreatic eruptions are defined by their eruptive mechanism, and vary in strength.
Facies of explosive origin, the volcaniclastic rocks, are a product of phreatic and phreatomagmatic eruptions.
According to eyewitness, phreatic eruptions continued after the large collapse at least twice.
Gypsum cave, gypsum is very soluble and vadose and phreatic caves can form in it.
Small phreatic explosions and / or low strombolian activity in the crater area can occur.
However, it is possible that small phreatic explosions affect the area near the crater.
Phreatic eruptions have occured in the 20th century from vents within the caldera.
This tremor is associated with phreatic / phreato-magmatic eruptions and exhalations of steam and gas.
