ash flow


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ash flow

[′ash ‚flō]
(geology)
An avalanche of volcanic ash, generally a highly heated mixture of volcanic gases and ash, traveling down the flanks of a volcano or along the surface of the ground. Also known as glowing avalanche; incandescent tuff flow.
A deposit of volcanic ash and other debris resulting from such a flow and lying on the surface of the ground.
References in periodicals archive ?
The latest round of eruption prompted authorities to order the relocation of villages in areas where the ash flow could damage crops, pollute water sources and endanger the lives of residents.
Characterised by warm and vibrant colours and evidence of intense ash flow within the kiln, Johnston's work ranges from large jars that feel as if they have just been unearthed to artisan sushi platters that feel right at home in the 21st century.
The vibration feeders are motor operated and equipped with frequency controller to adjust the bottom ash flow required for dense slurry mixing and discharge.
Paipa volcano products are mainly pyroclastic pumice and ash flow tuffs, lava domes and pyroclastic block and ash flow tuffs.
Focus your conversation on how the numbers affect the bottom line (profit) and/or ash flow when presenting to management.
Lithium-enriched Tertiary-era Fish Lake formation Rhyolitic tuffs or ash flow tuffs have accumulated in this valley or basinal environment, and over time interstitial formational waters in contact with these tuffs, have become enriched in lithium, and could possibly be amenable to extraction by evaporative methods, much as Chemetall Foote currently produces Lithium on their Clayton Valley Property which is only some 19 miles to the SE of Fish Lake.
The method described in detail in [17] includes the determination of ash flow rate by measuring pulp volume and mass.
The Government said it was continuing to monitor the ash flow.
Don Reitz refers to this effect as "painting with fire" as the river of heat and ash flow through the kiln, leaving a record of their journey on the ware.
It consists of very poorly sorted pumice and ash flow tuffs, with pumice juvenile fragments and very angular phylites, quartzites and sandstones accidental lithics up to 30 cm, chaotically distributed in a yellow-brown pumice and ash matrix.
Anomaly 2 is underlain by unaltered ash flow tuffs.
The bottom ash flow mass was calculated as the difference between the total ash mass flow entering into the boiler with fuel, which was determined through the indirect heat balance of the boiler, and the total fly ash mass flow.