Examples of 'tephra' in a sentence
Meaning of "tephra"
tephra (noun) - fragmented material ejected from a volcano during an eruption, including particles of various sizes such as ash and rock fragments. Tephra can have significant impacts on the environment and human activities
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- The solid material thrown into the air by a volcanic eruption that settles on the surrounding areas.
How to use "tephra" in a sentence
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tephra
No tephra or lava volumes were recorded at this time.
Pyroclastic debris of all types is known as tephra.
Tephra seems enthralled with its beauty.
A small portion of the erupted tephra was deposited locally.
Tephra volumes and erupted masses.
It is a stratovolcano formed by tephra and solidified lava flows.
Tephra greatly inhibited seedling establishment.
This material is collectively known as tephra.
These form several layers of tephra constructing the mountain.
Seedlings were more common on shallow than on deep tephra.
The extent of tephra deposits would depend on wind strength and directions.
Volume and composition of tephra.
The deposited tephra particulates make the local soil very permeable.
This results in a higher eruption column with increased tephra fallout.
Tephra can also be washed down with precipitation to form acid rain or snowfall.
See also
Beerenberg is composed primarily of basaltic lava flows with minor amounts of tephra.
Also note tephra jets which are common features of many shallow submarine eruptions.
Houses close to the rift were soon destroyed by lava flows and tephra fall.
Tephra layers visible in ice cliffs surrounding the island are evidence of recent eruptions.
The white bed is composed of silt and clay detritus and resembles tephra.
Grain size and thickness of tephra generally decreases gradually with distance from a vent.
In summer the climb is difficult due to the loose tephra that gives way underfoot.
The tephra occurs in early Boreal contexts.
Another volcano formed by basalt and tephra is known as Dayizishan.
The tephra is dispersed over a wider area than that from Strombolian eruptions.
The nearby village of Nelson Lagoon was coated with tephra during the powerful eruption.
The tephra deposits have lower volume and range than the corresponding Plinian and Vulcanian eruptions.
The main outcome of this study is a first outline for a Finnish Holocene tephra framework.
Detection of Lateglacial distal tephra layers in the Netherlands.
Tephra from this event fell in Anchorage and Valdez.
The district of Litla-Hérað was destroyed by floods and tephra fall.
The Alaskan tephra in Europe was unexpected and presents new research opportunities.
The calcium sulfate, anhydrite, was present as phenocrysts in the erupted tephra.
Tephra has been carried from Hverfjall all over the Lake Myvatn area.
This form of accumulation tends to result in well-ordered rings of tephra.
No lava or tephra volumes were recorded, however.
They are composed almost exclusively of fragmented pyroclastic material, called tephra.
Tephra material is represented by two varieties, fine ash and lapilli.
They have wide craters and are formed of highly altered, thickly bedded tephra.
Tephra from different eruptions is on the surface, and no excavations have been done.
Explosive eruptions are characterized by gas-driven explosions that propels magma and tephra.
Incandescent tephra was ejected, and ash fell from the volcano.
Its flat-topped summit is made of weakly consolidated tephra and consists of two terraces.
The tephra accumulates in the vicinity of the vent, forming a cinder cone.
Explosively erupted pyroclastic material is called tephra and includes tuff, agglomerate and ignimbrite.
Samples of the tephra were dense, insinuating that the lava released was mature.
The deposits of that eruption consisted of a yellowish, fairly decomposed tephra with a high sulfur content.
It contained palagonitic tephra with a particle size fraction of less than 1 millimeter.
Appendix 1 - Calculation of total grain size distribution of a tephra fall deposit.
The tephra produced by its eruptions is high in fluorine, which is poisonous to animals.
