Geological Units Field Glossary

MAPSYMBOL

• Reference: Restricted text that contains the unique code for this geologic unit. For GeoMAP the first letters will be Chronostratigraphic subdivision (AGECODE), then a Lithostratigraphic based on dominant types of rock then subordinate rocks (LITHCODE).

• Type: Text

• Length: 20.0

• Field Values: List of Values

• GSA Alias: mapSymbol

• fieldSource: GMNZ

More Information:

• Unique Values: 186

• Most frequently occurring value: KCzv

• Number of values with a single occurrence: 5

PLOTSYMBOL

• Reference: Restricted text that contains the code based on MAPSYMBOL that can be used to aggregate similar geological units to assign cartographic colour

• Type: Text

• Length: 20.0

• Field Values: List of Values

• GSA Alias: plotSymbol

• fieldSource: GMNZ

More Information:

• Unique Values: 198

• Most frequently occurring value: KCzv

• Number of values with a single occurrence: 6

NAME

• Reference: Free text containing name of the geologic unit and conforming to the GeoSciML usage of name.

• Type: Text

• Length: 255.0

• GeoSciML Name: name

• GSA Alias: name

• fieldSource: GeoSciML

More Information:

• Unique Values: 789

• Most frequently occurring value: outcrop of unknown rock type

• Number of values with a single occurrence: 44

DESCR

• Reference: Free text that describes the geologic unit and conforming to the GeoSciML usage of description.

• Type: Text

• Length: 255.0

• GeoSciML Name: description

• GSA Alias: description

• fieldSource: GeoSciML

More Information:

• Unique Values: 882

• Most frequently occurring value: Thick sequence of quartzose turbidite greywacke with silty rnudstone intercalations, locally quite similar to the Molar Formation sandstone.

• Number of values with a single occurrence: 50

POLYGTYPE

• Reference: Restricted text describing basic division of material (rock, moraine, ice).

• Type: Text

• Length: 20.0

• Field Values: List of Values

• Source: Restricted List

• fieldSource: GeoMAP

More Information:

• Unique Values: 3

• Most frequently occurring value: rock

• Number of values with a single occurrence: 0

MBREQUIV

• Reference: Free text containing the stratigraphic name of the group member or member equivalent of which this member is part. Leave this field blank if not applicable.

• Type: Text

• Length: 100.0

• Field Values: List of Values

• fieldSource: GMNZ

More Information:

• Unique Values: 37

• Most frequently occurring value:

• Number of values with a single occurrence: 6

FMNEQUIV

• Reference: Free text containing the stratigraphic name of the formation or formation equivalent of which this member is part. Leave this field blank if not applicable.

• Type: Text

• Length: 100.0

• fieldSource: GMNZ

More Information:

• Unique Values: 414

• Most frequently occurring value:

• Number of values with a single occurrence: 24

SBGRPEQUIV

• Reference: Free text containing the stratigraphic name of the subgroup or subgroup equivalent of which this member is part. Leave this field blank if not applicable.

• Type: Text

• Length: 100.0

• Field Values: List of Values

• fieldSource: GMNZ

More Information:

• Unique Values: 7

• Most frequently occurring value:

• Number of values with a single occurrence: 0

GRPEQUIV

• Reference: Free text containing the stratigraphic name of the group or groups or equivalents of which this unit is a part. Leave this field blank if not applicable.

• Type: Text

• Length: 100.0

• Field Values: List of Values

• fieldSource: GMNZ

More Information:

• Unique Values: 81

• Most frequently occurring value:

• Number of values with a single occurrence: 0

SPGRPEQUIV

• Reference: Free text containing the stratigraphic name of the supergroup or supergroups or equivalents of which this unit is a part. Leave this field blank if not applicable.

• Type: Text

• Length: 100.0

• Field Values: List of Values

• fieldSource: GMNZ

More Information:

• Unique Values: 26

• Most frequently occurring value:

• Number of values with a single occurrence: 0

TERREQUIV

• Reference: Free text containing the terrane name or equivalent of which this unit is a part. Leave this field blank if not applicable.

• Type: Text

• Length: 100.0

• Field Values: List of Values

• fieldSource: GMNZ

More Information:

• Unique Values: 30

• Most frequently occurring value:

• Number of values with a single occurrence: 1

STRATRANK

• Reference: Restricted text describing the stratigraphic rank of the geologic unit and conforming to the GeoSciML usage of rank.

• Type: Text

• Length: 50.0

• Field Values: List of Values

• Source: http://resource.geosciml.org/classifier/cgi/stratigraphicrank

• GeoSciML Name: rank

• fieldSource: GeoSciML

More Information:

• Unique Values: 13

• Most frequently occurring value: not specified

• Number of values with a single occurrence: 0

SIMPCODE

• Reference: Restricted number encoding SIMPCLASS and SIMPDESC.

• Type: Short

• Field Values: List of Values

• Source: Restricted List

• fieldSource: GeoMAP

More Information:

• Unique Values: 21

• Most frequently occurring value: 63

• Number of values with a single occurrence: 0

SIMPCLASS

• Reference: Restricted text. Simplified, generally age related, subdivision of units.

• Type: Text

• Length: 120.0

• Field Values: List of Values

• Source: Governed by SIMPCODE

• fieldSource: GeoMAP

More Information:

• Unique Values: 7

• Most frequently occurring value: Proterozoic-Paleozoic

• Number of values with a single occurrence: 0

SIMPDESC

• Reference: Restricted text. Simplified, generalised description of units.

• Type: Text

• Length: 120.0

• Field Values: List of Values

• Source: Governed by SIMPCODE

• fieldSource: GeoMAP

More Information:

• Unique Values: 21

• Most frequently occurring value: High-grade metamorphic rock - orthogneiss, paragneiss, schist and amphibolite

• Number of values with a single occurrence: 0

TYPENAME

• Reference: Restricted text that describes the type of geologic unit and conforming to GeoSciML usage of geologicUnitType.

• Type: Text

• Length: 50.0

• Field Values: List of Values

• Source: Must match entryname of TYPE_URI

• GeoSciML Name: geologicUnitType

• GSA Alias: geologicUnitType

• fieldSource: GeoSciML

More Information:

• Unique Values: 5

• Most frequently occurring value: lithostratigraphic unit

• Number of values with a single occurrence: 0

TYPE_URI

• Reference: Restricted text that contains a link to the GeoSciML definition of the geologicUnitType. Must be a valid URI from:

• Type: Text

• Length: 255.0

• Field Values: List of Values

• Source: http://resource.geosciml.org/classifier/cgi/geologicunittype

• GeoSciML Name: geologicUnitType_uri

• GSA Alias: geologicUnitType_uri

• fieldSource: GeoSciML

More Information:

• Unique Values: 5

• Most frequently occurring value: http://resource.geosciml.org/classifier/cgi/geologicunittype/lithostratigraphic_unit

• Number of values with a single occurrence: 0

LITHOLOGY

• Reference: Restricted text that describes the lithologies present and conforming to the GeoSciML usage of lithology.

• Type: Text

• Length: 150.0

• Source: Must match entryname of REPLITH_URI

• GeoSciML Name: lithology

• GSA Alias: lithology

• fieldSource: GeoSciML

More Information:

• Unique Values: 440

• Most frequently occurring value: siltstone, sandstone

• Number of values with a single occurrence: 14

REPLITH_URI

• Reference: Restricted text that contains a link to the GeoSciML definition of the lithology that best represents this unit. Must be a valid URI from:

• Type: Text

• Length: 255.0

• Field Values: List of Values

• Source: http://resource.geosciml.org/classifier/cgi/lithology

• GeoSciML Name: representativeLithology_uri

• GSA Alias: representativeLithology_uri

• fieldSource: GeoSciML

More Information:

• Unique Values: 89

• Most frequently occurring value: http://resource.geosciml.org/classifier/cgi/lithology/metamorphic_rock

• Number of values with a single occurrence: 3

GEOLHIST

• Reference: Free text that describes the stratigraphic age range of the geologic unit and conforming to the GeoSciML usage of geologicHistory.

• Type: Text

• Length: 255.0

• Field Values: List of Values

• GeoSciML Name: geologicHistory

• GSA Alias: geologicHistory

• fieldSource: GeoSciML

More Information:

• Unique Values: 112

• Most frequently occurring value: Cambrian to Ordovician

• Number of values with a single occurrence: 0

REPAGE_URI

• Reference: Restricted text that contains a link to the GeoSciML definition of the stratigraphic age that best represents this unit. Must be a URI from:

• Type: Text

• Length: 255.0

• Field Values: List of Values

• Source: http://resource.geosciml.org/classifier/ics/ischart/GeochronologicEras

• GeoSciML Name: representativeAge_uri

• GSA Alias: representativeAge_uri

• fieldSource: GeoSciML

More Information:

• Unique Values: 43

• Most frequently occurring value: http://resource.geosciml.org/classifier/ics/ischart/Mesozoic

• Number of values with a single occurrence: 0

YNGAGE_URI

• Reference: Restricted text that contains a link to the GeoSciML definition of the stratigraphic age that best represents the youngest part of this unit. Must be a URI from:

• Type: Text

• Length: 255.0

• Field Values: List of Values

• Source: http://resource.geosciml.org/classifier/ics/ischart/GeochronologicEras

• GeoSciML Name: representativeYoungerAge_uri

• GSA Alias: representativeYoungerAge_uri

• fieldSource: GeoSciML

More Information:

• Unique Values: 54

• Most frequently occurring value: http://resource.geosciml.org/classifier/ics/ischart/Miocene

• Number of values with a single occurrence: 1

OLDAGE_URI

• Reference: Restricted text that contains a link to the GeoSciML definition of the stratigraphic age that best represents the oldest part of this unit. Must be a URI from:

• Type: Text

• Length: 255.0

• Field Values: List of Values

• Source: http://resource.geosciml.org/classifier/ics/ischart/GeochronologicEras

• GeoSciML Name: representativeOlderAge_uri

• GSA Alias: representativeOlderAge_uri

• fieldSource: GeoSciML

More Information:

• Unique Values: 57

• Most frequently occurring value: http://resource.geosciml.org/classifier/ics/ischart/Jurassic

• Number of values with a single occurrence: 1

ABSMIN_MA

• Reference: Number that gives the absolute minimum age (in millions of years) of the geologic unit as determined by radiometric dating or assigned on the basis of stratigraphy.

• Type: Double

• Field Values: List of Values

• fieldSource: GMNZ

More Information:

• Unique Values: 131

• Most frequently occurring value: 0.0

• Number of values with a single occurrence: 4

ABSMAX_MA

• Reference: Number that gives the absolute maximum age (in millions of years) of the geologic unit as determined by radiometric dating or assigned on the basis of stratigraphy.

• Type: Double

• Field Values: List of Values

• fieldSource: GMNZ

More Information:

• Unique Values: 146

• Most frequently occurring value: 201.3

• Number of values with a single occurrence: 3

AGECODE

• Reference: Restricted text identifying Chronographic subdivision of unit. Used in conjunction with LITHCODE to encode MAPSYMBOL.

• Type: Text

• Length: 10.0

• Field Values: List of Values

• Source: Restricted List

• fieldSource: GeoMAP

More Information:

• Unique Values: 50

• Most frequently occurring value: JK

• Number of values with a single occurrence: 1

LITHCODE

• Reference: Restricted text identifying dominant lithology of unit. Used in conjunction with AGECODE to encode MAPSYMBOL.

• Type: Text

• Length: 10.0

• Field Values: List of Values

• Source: Restricted List

• fieldSource: GeoMAP

More Information:

• Unique Values: 26

• Most frequently occurring value: n

• Number of values with a single occurrence: 0

SOURCECODE

• Reference: The code used on original published maps and datasets, or originators source material.

• Type: Text

• Length: 20.0

• fieldSource: GeoMAP

More Information:

• Unique Values: 993

• Most frequently occurring value: Rb

• Number of values with a single occurrence: 65

SOURCE

• Reference: Free text that contains information on the source of the geologic unit and conforming to the GeoSciML usage of source.

• Type: Text

• Length: 300.0

• Field Values: List of Values

• GeoSciML Name: source

• GSA Alias: source

• fieldSource: GeoSciML

More Information:

• Unique Values: 234

• Most frequently occurring value: Smellie 2021

• Number of values with a single occurrence: 4

OBSMETHOD

• Reference: Restricted text that describes the method of observation used to capture the geologic unit and conforming to the GeoSciML usage of observationMethod. Must match entryname of URI at:

• Type: Text

• Length: 50.0

• Field Values: List of Values

• Source: http://resource.geosciml.org/classifier/cgi/featureobservationmethod

• GeoSciML Name: observationMethod

• GSA Alias: observationMethod

• fieldSource: GeoSciML

More Information:

• Unique Values: 8

• Most frequently occurring value: synthesis from multiple sources

• Number of values with a single occurrence: 0

CONFIDENCE

• Reference: Free text that provides a statement concerning the accuracy of the data provided in associated fields. Fields which contain data about which there is uncertainty are listed.

• Type: Text

• Length: 150.0

• Field Values: List of Values

• GSA Alias: identityConfidence

• fieldSource: GMNZ

More Information:

• Unique Values: 268

• Most frequently occurring value:

• Number of values with a single occurrence: 18

POSACC_M

• Reference: An estimate of the accuracy (in metres) within which the geologic unit has been located and conforming to the GeoSciML usage of positionalAccuracy.

• Type: Long

• Field Values: List of Values

• GeoSciML Name: positionalAccuracy

• fieldSource: GeoSciML

More Information:

• Unique Values: 1

• Most frequently occurring value: 250

• Number of values with a single occurrence: 0

METADATA

• Reference: Free text that contains a link to metadata for this feature class and conforming to the GeoSciML usage of metadata.

• Type: Text

• Length: 255.0

• Field Values: List of Values

• GeoSciML Name: metadata_uri

• GSA Alias: metadata_uri

• fieldSource: GeoSciML

More Information:

• Unique Values: 1

• Most frequently occurring value: https://data.gns.cri.nz/metadata/srv/eng/catalog.search#/metadata/600C1153-7C74-447A-98AC-DEE65C130170

• Number of values with a single occurrence: 0

FEATUREID

• Reference: Globally unique identifer for the geologic unit and conforming to the GeoSciML usage of identifier. (e.g. ATA_GeoMAP_geological_units_00071)

• Type: Text

• Length: 255.0

• GeoSciML Name: identifier

• GSA Alias: mappedFeatureID

• fieldSource: GeoSciML

More Information:

• Unique Values: 99080

• Most frequently occurring value: ATA_GeoMAP_geological_units_00001

• Number of values with a single occurrence: 99080

REGION

• Reference: Restricted text. Very broad differentiation of geographical area.

• Type: Text

• Length: 50.0

• Field Values: List of Values

• Source: Choose from: East Antarctica or West Antarctica

• fieldSource: GeoMAP

More Information:

• Unique Values: 2

• Most frequently occurring value: East Antarctica

• Number of values with a single occurrence: 0

TECTPROV

• Reference: Restricted text. Differentiation of geographical area based on “tectonic provinces and boundaries” from Siddoway, 2020 (Encyclopedia of Geology, 2nd edition, Ch 3).

• Type: Text

• Length: 50.0

• Field Values: List of Values

• Source: Restricted List

• fieldSource: GeoMAP

More Information:

• Unique Values: 14

• Most frequently occurring value: Antarctic Peninsula

• Number of values with a single occurrence: 0

RESSCALE

• Reference: Resolution at which the geologic unit is intended to be used.

• Type: Long

• Length: 4.0

• Field Values: List of Values

• GSA Alias: resolutionScale

• fieldSource: GMNZ

More Information:

• Unique Values: 5

• Most frequently occurring value: 250000

• Number of values with a single occurrence: 0

CAPTSCALE

• Reference: Resolution at which the geologic unit was captured.

• Type: Long

• Length: 4.0

• Field Values: List of Values

• GSA Alias: captureScale

• fieldSource: GMNZ

More Information:

• Unique Values: 3

• Most frequently occurring value: 50000

• Number of values with a single occurrence: 0

CAPTDATE

• Reference: Date when the geologic unit was added to this dataset.

• Type: Date

• Length: 8.0

• Field Values: List of Values

• GSA Alias: captureDate

• fieldSource: GMNZ

More Information:

• Unique Values: 24

• Most frequently occurring value: 2017-07-26T00:00:00+00:00

• Number of values with a single occurrence: 0

MODDATE

• Reference: Date when the geologic unit was last modified.

• Type: Date

• Length: 8.0

• Field Values: List of Values

• GSA Alias: modifiedDate

• fieldSource: GMNZ

More Information:

• Unique Values: 40

• Most frequently occurring value: 2022-04-11 00:00:00+00:00

• Number of values with a single occurrence: 3

SPEC_URI

• Reference: Text that contains a link referring to the GeoSciML GeologicalUnit feature that describes the instance in detail. If missing shall be:

• Type: Text

• Length: 150.0

• Field Values: List of Values

• Source: http://www.opengis.net/def/nil/OGC/0/missing

• GeoSciML Name: specification_uri

• fieldSource: GeoSciML

More Information:

• Unique Values: 2

• Most frequently occurring value: http://www.opengis.net/def/nil/OGC/0/missing

• Number of values with a single occurrence: 0

SYMBOL

• Reference: Restricted text containing an identifier for a symbol from standard symbolization scheme for use in GeoSciML portrayal.

• Type: Text

• Length: 12.0

• Field Values: List of Values

• Source: Governed by MAPSYMBOL

• GeoSciML Name: genericSymbolizer

• fieldSource: GeoSciML

More Information:

• Unique Values: 184

• Most frequently occurring value:

• Number of values with a single occurrence: 5