microtephra
English
Etymology
From micro- + tephra.
Noun
microtephra (uncountable)
- (geology, paleontology) Microscopic deposits of tephra.
- 2011, Chris Stringer, The Origin of Our Species, Penguin 2012, p. 45:
- This microtephra may be ejected into the upper atmosphere and travel for many thousands of miles […].
- 2011, Chris Stringer, The Origin of Our Species, Penguin 2012, p. 45: