tephra


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teph·ra

 (tĕf′rə)
n.
Solid matter that is ejected into the air by an erupting volcano.

[Greek tephrā, ash; see dhegwh- in Indo-European roots.]

tephra

(ˈtɛfrə)
n
(Geological Science) chiefly US solid matter ejected during a volcanic eruption
[C20: Greek, literally: ashes]

teph·ra

(tĕf′rə)
Solid matter, such as ash, dust, and cinders, that is ejected into the air by an erupting volcano.
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References in periodicals archive ?
The Kimbe soil is an Andisol developed in air-fall tephra consisting of predominantly amorphous material (glass) and plagioclase, with pumice layers and some allophane at depths below 0.
The ash column over the volcano was almost 10 kilometers high, and was accompanied by some pyroclastic flow, which contain hot gas and tephra, or fragmented volcanic material.
In a volcanic eruption, lava, tephra, lapilli and ash together with various gases are expelled from a volcanic vent or fissure.
Cask Data Application Platform (CDAP)--provides an abstraction layer on top of Hadoop and other open source infrastructure, such as HBase, Hive, Tephra, and Tigon, that enables developers to rapidly build, and operations to easily manage, real-time and batch data applications
Astronomically forced cyclicity in the Upper Ordovician and U-Pb ages of interlayered tephra, Oslo Region, Norway.
Coincidentally, the same strong wind prevented the whole of the town's fishing fleet from leaving port on the days when the 160m high flow of lava, tephra and tuff, having enveloped thousands of homes, was crawling towards the harbour.
Tephra found in the cores is likely from volcanic ashfall on land, likely from one event in the late Cretaceous era.
Thus tephra isochrones represent (perhaps the only) independent constraints for resolving past events on decadal timescales.
Curtis) Massee Morelos y Veracruz (Burt, 1925) Peniophora tamaricicola Boidin & Malencon Sonora (Gilbertson, 1975) Peniophora tephra (Berk.
Incorporating Restoration in Sustainable Forestry Management: Using Pine-Bark Mulch to Improve Native Species Establishment on Tephra Deposits.