Beskrivelse: The GeoSciML "CGI_Value" model provides a generic way of encoding "literal" values, both textual and numeric, which have uncertainty and may be a range. These structures are designed to be able to capture value descriptions as conventionally recorded by geologists.
The Value structures are for when you need
1. a qualifier,
2. to be able to use either single values or ranges, or
3. to express uncertainty on numeric values
4. use numbers or words as alternatives for a single value or in a mixed range
e.g. "usually X", "greater than Y" where X and Y are either a Measure (number with a scale) or Term (word from a vocabulary) or a range constructed from measures and terms
"CGI_GeometricDescriptions" allow describing the planar or linear orientation of a geologic feature. Allows specifying direction by DirectionVector (eg Dip/Dip Direction), compass point (NE), description ("toward fold hinge", "below')
These values are usually obtained as the result of an observation. The description of the associated observation event will provide more detail about the observation method, result quality, etc.

Allows specifying a range of terms (eg: thick to thin) by specifying an upper (eg: thick) and lower (eg: thin) CGI_TermValue

an estimate of a point in geologic time and a link to its observational basis

Description of the measured orientation of a line. At least one of plunge or trend should not be nil.

The Value structures are for when you need 1. a qualifier, 2. to be able to use either single values or ranges, or 3. to express uncertainty on numeric values 4. use numbers or words as alternatives for a single value or in a mixed range e.g. "usually X", "greater than Y" where X and Y are either a Measure (number with a scale) or Term (word from a vocabulary) or a range constructed from measures and terms

1. Allows specifying a range of numeric values (eg 443.7+-1.5 to 359+-2.5) and a single representative or estimated value. (eg: upper = 443.7+-1.5,lower = 359+-2.5, estimatedValue [mean] = 400). 2. Use the swe:definition attribute (URI in SWE1, ScopedName in SWE2) to describe the statistical type of the quoted measurement (eg, mean, minimum, maximum, median, mode, single measurement). Recommended vocabulary for statistical terms is at http://dictionary.uncertml.org/statistics. 3. Where CGI_NumericRange is used to deliver a single numeric value, it should be repeated in both the upper and lower quantity values. 4. Use UCUM where possible for units of measure.

data type for linear orientation with magnitude. Cardinality on magnitude is 1, if magnitude is unknown use CGI_LinearOrientation

Description of the planar or linear orientation of a geologic feature. Allows specifying direction by DirectionVector (eg Dip/Dip Direction), compass point (NE), description ("toward fold hinge", "below')

Class to represent general age assignment using numeric measurement results. All attributes have cardinality 1; report with nilReason="missing" if a value is absent.