Pollen anaylsis

The ecology of the Hutt Valley: Pollen-bearing deposits and forest history

[First paragraph...]
It has become comparatively easy nowadays to get pollen and spore floras from sedimentary deposits, not only from carbonaceous but also from mineral sediments, provided that the latter are not too coarse or too oxidised. This places within our reach a research tool which has proved its value for certain stratigraphic uses.