1. n. [Geology]

A graphic display, with geologic time along the vertical axis and distance along the horizontal axis, to demonstrate the relative ages and geographic extent of strata or stratigraphic units in a given area, also known as a Wheeler diagram. In addition, information from seismic data, well logs, rock samples, and biostratigraphic and lithostratigraphic information can be shown within each chronostratigraphic unit. A chronostratigraphic chart can concisely illustrate sequence stratigraphic interpretations.

See: biostratigraphy,  chronostratigraphy,  lithostratigraphy,  sequence stratigraphy,  stratigraphy,  stratum,  well log