`An age range associated with a specimen derived from an AMS dating assay applied to an oyster shell in the same stratum` `An age range associated with a specimen derived from a ceramics analysis based on other materials found in the same stratum` `A maximum age associated with a specimen derived from K-Ar dating applied to a proximal volcanic tuff found stratigraphically below the specimen` `An age range of a specimen based on its biostratigraphic context` `An age of a specimen based on what is reported in legacy collections data`. The age of a specimen and how this age is known, whether by a dating assay, a relative association with dated material, or legacy collections information. Latest Chronometric Age Reference System (IRI) |Īn approximation of a temporal position (in the sense conveyed by ) that is supported via evidence. ![]() Minimum Chronometric Age Reference System |Ĭhronometric Age Conversion Protocol (IRI) |Ĭhronometric Age Uncertainty Method (IRI) |Įarliest Chronometric Age Reference System (IRI) | Maximum Chronometric Age Reference System | Latest Chronometric Age Reference System | 3 Term index 3.1 Index By Term NameĬhrono:chronometricAgeConversionProtocol |Ĭhrono:chronometricAgeUncertaintyInYears |Ĭhrono:chronometricAgeUncertaintyMethod |Ĭhrono:earliestChronometricAgeReferenceSystem |Ĭhrono:latestChronometricAgeReferenceSystem |Ĭhrono:maximumChronometricAgeReferenceSystem |Ĭhrono:minimumChronometricAgeReferenceSystem |Ĭhronoiri:chronometricAgeConversionProtocol |Ĭhronoiri:chronometricAgeUncertaintyMethod |Ĭhronoiri:earliestChronometricAgeReferenceSystem |Ĭhronoiri:latestChronometricAgeReferenceSystem |Ĭhronoiri:materialDated 3.2 Index By LabelĮarliest Chronometric Age Reference System | The terms in this standard are meant to provide stable definitions that can be used in a variety of contexts, but were envisioned principally to function together as an extension to Darwin Core, where each core record may be annotated by one or more chronometric ages. The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in this document are to be interpreted as described in RFC 2119. Label and the values of all other properties (such as Notes and Examples) are non-normative. The values of Term Name are non-normative, although one can expect that the namespace abbreviation prefix is one commonly used for the term namespace. In Section 4, the values of the Term IRI, and Definition are normative. 1.1 Status of the content of this document įor a simplified list that contains only the currently recommended terms, see the Chronometric Age Quick Reference Guide ( ). Earlier term versions using the zooarchnet: namespace are deprecated and should no longer be used. The vocabulary uses the namespace abbreviation chrono. This document contains all versions of terms in the Chronometric Age vocabulary ( ). ![]() Biodiversity Information Standards (TDWG). Contributors John Wieczorek, Laura Brenskelle, Robert Guralnick, Kitty Emery, Michelle LeFebvre, Neill Wallis, Steve Baskauf, Marie Elise Lecoq, Eric Kansa, Sarah Kansa, Denné Reed Creator TDWG Darwin Core Chronometric Age Extension Task Group Bibliographic citation TDWG Darwin Core Chronometric Age Extension Task Group. This document lists all terms in namespaces currently used in the vocabulary. Chronometric Age Vocabulary List of Terms Title Chronometric Age Vocabulary List of Terms Namespace IRI: Preferred namespace abbreviation chrono: Date version issued Date created Part of TDWG Standard This version Latest version Abstract The Chronometric Age Vocabulary is a standard for transmitting information about chronometric ages - the processes and results of an assay or other analysis used to determine the age of a MaterialSample.
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