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Tephra (Particulates) Analysis Laboratory
The tephra laboratory handles particulate samples of most any kind with special
emphasis on volcanic ash (tephra). Samples can be investigated by their size distribution
through sieving, optical (Horiba centrifugal light absorbance technique), or by scanning
electron microscopy (SEM); specialized
software (SFT) allows inversion of
distribution data for analysis of their fragmentation and transport history. Particulate
component analysis may be achieved by optical and SEM microscopy along with specialized
treatment and sample preparations. The
laboratory is generally available for use by researchers, and it includes computational
support with a dedicated DEC 5000 workstation and a PC.
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For more information please contact: