POSC Specifications: Epicentre Version 3.0 | Logical Data Model |
This change defines an optional uncertainty value for geologic age in pty_geologic_age.
CHANGE ESM_geologic_age_uncertainty ALTER ENTITY pty_geologic_age; ADD age_uncertainty : OPTIONAL ndt_time_geologic (*<desc> This is the uncertainty of the geologic age expressed in years, millions of years, or billions of years.*); END_ENTITY; END_CHANGE;