allostratigraphy

== English == === Etymology === From allo- +‎ stratigraphy. === Noun === allostratigraphy (usually uncountable, plural allostratigraphies) (geology) The study and classification of rock strata by their bounding surfaces, such as unconformities and other types of uncomformable contacts that create discontinuities in the rock record. Coordinate terms: biostratigraphy, chemostratigraphy, chronostratigraphy, climatostratigraphy, cyclostratigraphy, electrostratigraphy, lithostratigraphy, magnetostratigraphy, tectonostratigraphy ==== Derived terms ==== allostratigraphic