Entity pty_geologic_age_range

• A period of geologic time, specified by the beginning and ending ages.

Attribute                                 Flags   Data Type

From property:
   data_collection                        IV      set[0 .. N] of (data_collection)

                                          Indicates the data collections that include this
                                          instance of E and P data. 

   graphical_element                      IV      set[0 .. N] of (graphical_element)

                                          Specifies one or more graphical elements which
                                          are depicting this data item. 

   activity                               I       activity

                                          Defines the activity which created this instance.

   process_data_item                      IV      set[0 .. N] of (process_data_item)

                                          Defines where this data was used by an activity.

   other_spatial_object                   I       other_spatial_object

                                          may be a property of 


earlier_age                               N       ndt_time_geologic

                                          The age of the beginning of a geologic age period.
                                          This would correspond to the time most distant
                                          from present day. 

later_age                                 N       ndt_time_geologic

                                          The age of the end of a geologic age period. This
                                          corresponds to the age closer to the present day.

reservoir_fluid_system                    U       reservoir_fluid_system

                                          may be a property of 

rock_material                             U       rock_material

                                          may be a property of 

geologic_process                          U       geologic_process

                                          may be a property of 

temporal_period                           U       temporal_period

                                          may be a property of 

fossil_taxon                              U       fossil_taxon

                                          may be a property of 

feature_boundary                          U       feature_boundary

                                          may be a property of 

rock_fluid_feature                        U       rock_fluid_feature

                                          may be a property of 

position_on_earth_surface                 U       position_on_earth_surface

                                          may be a property of 

End of entity pty_geologic_age_range

M - mandatory, U - unique, I - inherited, V - inverse, N - named type