Sentence examples for single tephra from inspiring English sources

Dirichlet tessellation analysis shows that a single tephra thickness measurement typically represents a deposit area between 0.5 and 10 km2.

The main eruptive vent complex and site of lava effusion were represented by two loci of Vulcanian blasts within a single tephra cone containing a pancake-shaped proto-lava dome.

This possibility highlights the risk that single tephra samples may poorly represent local deposit variability in leachate compositions, requiring more extensive sampling of each location.

Although a single-tephra layer was observed, and two different kinds of tephra glass were identified in the layer, probably because the tephra layers were formed during a very short time interval.

At 20 30 cm below the surface, single-layer or patchy tephra were found.

The single alpine meadow exposure of W tephra in the Sunrise area, found near the Sunrise campground, was 350 mm long with an average thickness of 20 mm.

During tephra thickness data collection, usually a single measurement is made at a single location.

While the dated tephra appear to correspond with a single eruptive unit based on field comparisons, the large distance between exposures means that it is possible that we have sampled separate eruptive units of different age.

Some hazard studies have relied on a deterministic approach, defining ESPs as a single set of best guess values, and hazard as expected tephra accumulation (e.g. isomass maps, kg m−2; Barberi et al. 1992).

In tephra fall prone areas such as Miyazaki, it may be necessary to consider single spans in roof design.

Hinkley et al. (1987) also included a number of analytical duplicates of the same tephra samples; to avoid artificially inflating the collated leachate dataset, we replace those data with a single calculated mean for each duplicate pair.