When these one-cell algae die, they drift down, shrouding the lake floor with a thin, white layer.
Such varves are deposited in proglacial lakes annually because of the seasonal changes in the ablation of the glacier and the amount of meltwater feeding the lake.
The book may certainly be regarded as a highly technical compendium, an essential reference work that should be acquired by any library and is mandatory for advanced students, and practitioners.
This is, however, also a significant document--a status report--which synthesizes the latest thinking about important dating methods written by a distinguished assemblage of international experts. Initially, I provide a broad assessment that will establish a background and a context for chronology in archaeology, and I shall present an overall evaluation of the volume.
Chronometric Dating for the Archaeologist isn't bedtime reading, nor is it for the faint-of-heart, but at the same time one does not have to have a background in materials science or organic or inorganic chemistry to understand the basic premise of the work.
The editors' goal is to present a factual, current, and well-documented evaluation of a dozen of the major techniques that are used by scientists to determine chronology from archaeological artifacts or contexts.