Polarity chronostratigraphic stratigraphy involves the body of rock that contains primary magnetic-polarity from time of origin. An example of polarity chronostratigraphic stratigraphy is time based on symmetrical magnetic patterns in ocean floor. There are two purposes of polarity chronostratigraphy 1. Pedostratigraphphy involves traceable, buried soil horizons. It's requires use requires criteria that soil scientists use to study modern soils.
Fundamental units are soils and geosols.
The geosol name should include a geographic term and geosol. Allostratigraphic units may involve superimposed discontinuity bounded units of the same lithology. Allostratigraphic units may involve laterally adjacent discontinuity bounded rocks. Allostratigraphic units may involve geographically separated discontinuity bounded units. Diachronous units are those of unequal amounts of time represented by other units.