Sentence examples for analyses of the ash from inspiring English sources

Analyses of the ash component of the 1980 MSH tephra showed that 50 wt% of the total GSD was comprised of very fine ash (< 30 μm) (Rose and Durant 2009b).

Because olivine is a magnesium iron silicate, the resultant ash analysis has unusually high magnesium and iron and the elemental analyses of the ash are not accurate.

A 14C AMS date on a twig fragment sampled in the upper part of the volcanic ash layer provides a maximum age of the till of 1610±40 yr BP, and this is supported by tephrochronological and geochemical analyses of the volcanic ash.

Bulk and surface analyses of these ash compounds indicate that Ca-derived ash would be complex compounds, while the contribution of CaSO4, which is one of the most abundant ash compounds from diesel engines, is almost negligible.

Further, three recent meta-analyses of the acid-ash hypothesis do not support the hypothesis.

Previous probabilistic analyses of volcanic ash hazard in the Asia-Pacific region have largely focused on qualitative assessments of the frequency and potential consequences of future eruptions (e.g. Simpson et al. 2011).

In the past, probabilistic analyses of volcanic ash hazard have focused on quantitative assessments of the frequency and potential consequences of eruptions.

While the first parameter is of importance for volumetric analyses of ash pulses in the initial gas thrust regime, allowing an estimate of the total mass flux (see, e.g., Dürig et al. 2014), the vent radius r is an important input parameter for any plume model (e.g., Sparks et al. 1997; Suzuki and Koyaguchi 2013; Degruyter and Bonadonna 2012; Woodhouse et al. 2013).

Finally, SSEM analyses allow only one side of the ash grain to be imaged and only the bubbles on the viewable side of the particle to be quantified.

Maize flour was used for analyses of moisture, ash and protein; soybean oil was used as in-house control sample for fat; whole wheat flour for fibre; and rice flour (Standard Reference Material 1568a) for the minerals.

The latest chemical analyses of ash explain how Eyjafjallajökull switched without warning from quiet lava to plane-grounding ash plume.