Abstract

Time-correlation among palaeontological samples or other items of geological information located in measured sections can be depicted graphically as a network, in which the samples, represented by points, are linked by arrows, each of which represents a decision as to which of the samples linked is the older and which the younger. The idea of a correlation network stems naturally from the concept of correlation as a process of ordering, not equating, items of geological information in time. Examples of correlation networks are presented for a palynological reconnaissance of Triassic-Jurassic sections in eastern Svalbard, and for correlation of Lower Carboniferous sections in North Yorkshire based on calcareous microfossils.

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