HR: 13:55h
AN: IN53C-02    [Abstracts]
TI: GeochronML - O&M, GeoSciML and the Age of the Earth: Developing a geochronology data model
AU: * Sircombe, K N
EM: Keith.Sircombe@ga.gov.au
AF: Geoscience Australia, GPO Box 378, Canberra, ACT 2601, Australia
AU: Ardlie, N
AF: Geoscience Australia, GPO Box 378, Canberra, ACT 2601, Australia
AU: Sullivan, L
AF: Geoscience Australia, GPO Box 378, Canberra, ACT 2601, Australia
AU: Wyborn, L A
AF: Geoscience Australia, GPO Box 378, Canberra, ACT 2601, Australia
AB: Geochronology is the vital fourth dimension for geological knowledge. It provides the temporal framework for understanding and modelling geological processes and rates of change. Incorporating geochronological ‘observations and measurements' into interoperable geological data systems is thus a critical pursuit. Although there are several resources for storing and accessing geochronological data, there is no standard format for exchanging such data among users. Current systems are a mixture of comma-delimited text files, Excel spreadsheets and PDFs that assume prior specialist knowledge and frequently force the user to laboriously, and potentially erroneously, extract the required data manually. Geoscience Australia and partners are developing a standard data exchange format for geochronological data (`geochronML') within the broader framework of Observations and Measurements and GeoSciML that are an important facet of emerging international geoscience data transfer standards. Geochronology analytical processes and resulting data present some challenging issues as a rock `age' is typically not a direct measurement, but rather the interpretation of a statistical amalgam of several measurements chosen with the aid of prior geological knowledge and analytical metadata. The level at which these data need to be exposed to a user varies greatly, even to the same user over the course of a project. GeochronML is also attempting to provide a generic pattern that will support as wide as range of radioisotopic systems as possible. This presentation will discuss developments at Geoscience Australia and the opportunities for collaboration.
UR: http://www.seegrid.csiro.au/twiki/bin/view/AnalyticalGeoscience/Geochronology
DE: 0525 Data management
DE: 0530 Data presentation and visualization
DE: 1115 Radioisotope geochronology
DE: 9810 New fields (not classifiable under other headings)
SC: Earth and Space Science Informatics [IN]
MN: 2007 Fall Meeting