The GeoSciML GeologicAge package contains classes to support the description of geologic ages and events.
A geologic age is related to a particular GeologicEvent, during which one or more geological processes act to modify geological entities.
An identifiable event during which one or more geological processes act to modify geological entities. A GeologicEvent must have a specified geologic age and may have specified environments and processes. An example might be a cratonic uplift event during which erosion, sedimentation, and volcanism all take place.
The numeric or named age attributes of a particular geological event are expressed in terms of years before present (absolute age), referred to the geological time scale, or by comparison with other geological events or features (relative named age). A geologic event age can represent an instant in time or an interval of time.
gsmlga:EventProcessTerm
The eventProcess specifies the process or processes that occurred during the event. Examples include deposition, extrusion, intrusion, cooling.
The numericAgeDate attribute is the age of a particular geological event or feature expressed in terms of years before present (1950), using NumericAgeRange. This datatype allows a younger and older age boundary to express an interval, and a reporting age, which is a single numeric age to report for applications that can not use a numeric range. Age in years before present is an estimated time durations based on interpretation of isotopic analyses of EarthMaterial (some other methods are used for geologically young materials).
Numeric age range uses GeologicDateEstimate to allow incorporation of various uncertainty measures using ISO19115 DataQuality elements, and binding with observation features to report details of date determination measurement.
gsmlgt:GeochronologicEra
Older boundary of age of event expressed using a geochronologic era defined according to a geologic time scale per GeologicTime schema
gsmlgt:GeochronologicEra
Younger boundary of age of event expressed using a geochronologic era defined according to a geologic time scale per GeologicTime schema
The physical setting within which a GeologicEvent takes place. GeologicEnvironment is construed broadly to include physical settings on the Earth surface specified by climate, tectonics, physiography or geography, and settings in the Earth�s interior specified by pressure, temperature, chemical environment, or tectonics.
Prototype association to StratigraphicPoint may only be used when GeologicEvent is a stratigraphic event
Relates one or more GeologicEvents to a GeologicUnit or GeologicStructure to describe their age or geologic history.
Class to represent general age assignment using numeric measurement results. All attributes have cardinality 1; report with nilReason="missing" if a value is absent.
Single time coordinate value to report as representative for this NumericAge assignment
The older bounding time coordinate in an age range
The younger bounding time coordinate in an age range
An estimate of a point in geologic time and a link to its observational basis
A point in geologic time
A measure of the accuracy of the estimate of the point in time