Guide to the nature and methods of analysis of the clay fraction of tephras from the South Auckland region, New Zealand.
Lowe, D.J. & Nelson, C.S. (1983). Guide to the nature and methods of analysis- of the clay fraction of tephras from the south Auckland region, New Zealand. Occasional Report No. 11, University of Waikato, Department of Earth Sciences.
Permanent Research Commons link: https://hdl.handle.net/10289/9202
The manual outlines some of the more common laboratory procedures available for qualitatively and quantitatively analysing the composition of the tephric clays, many of which are difficult to determine because of their short range order or 'amorphous' nature. Techniques described and assessed in terms of their rapidity and quantitativeness include XRD, IR, DTA, TEM and SEM, sodium fluoride reactivity, chemical dissolution analyses, and surface area measurements. No one technique alone produces a definitive clay fraction analysis of tephric deposits. -from Authors
Occasional Report No. 11
© 1983 the authors.