Regularly laminated samples are a prime target of palaeoclimate research as they potentially provide (sub)annually resolved proxy records, e.g. of net infiltration in the catchment.
Laminated speleothems are quite common, although banding is seldom continuous throughout the growth history of individual samples. We routinely employ uv- or blue-light epifluorescence microscopy to enhance faint lamination patterns and developed software to semi-automatically detected and analyse lamination sequences. This tool is described in Meyer et al. (2006).
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