Digital geochronological index

A digital geochronological index to act as a domain constraint for geochronology columns in corporate data tables. It decodes geochronology codes, models pseudo parent-child relationships between intervals (for example, find the epochs within a given period), allows range searches (for example, find the epochs between lower limiting and upper limiting epochs) and provides radiometric ages with ranges of uncertainty. Follows the recommendations of the BGS Stratigraphy Committee. Phanerozoic after Gradstein and Ogg (1996), with the Ordovician scheme of Fortey et al. (1995); Proterozoic after Cowie and Bassett (1989); Archaean after an unpublished decision of the Precambrian Subcommission of the IUGS. Covers the whole of geological time. Geochronological resolution usually to age level. Lower resolution in the Archaean, Proterozoic, Cambrian. Greater resolution in the Caradoc Epoch.
 
Citation proposal
British Geological Survey. Digital geochronological index. https://metadata.bgs.ac.uk/geonetwork/srv/api/records/9df8df51-6401-37a8-e044-0003ba9b0d98
 

Simple

Date ( Creation )
2002
Identifier
http://data.bgs.ac.uk/id/dataHolding/13480463

  Originator

  Point of contact

  Custodian

  Distributor

  +44 115 936 3276 
Maintenance and update frequency
notPlanned Not planned
GEMET - INSPIRE themes
  • Geology
BGS Thesaurus of Geosciences
  • Geochronology , Stratigraphy
Keywords
  • NERC_DDC
Access constraints
otherRestrictions Other restrictions
Use constraints
otherRestrictions Other restrictions
Other constraints
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Other constraints
Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk ) for advice, should the position not be clear.
Metadata language
English English
Topic category
  • Geoscientific information
Supplemental Information
Is a corporate dictionary and as such should not be altered. BGS Geological Timechart Cowie, J W. and Bassett, M G. 1989. International Union of Geological Sciences 1989 Global Stratigraphic Chart with geochronometric and magnetostratigraphic calibration. Supplement to Episodes, Vol. 12, No. 2. Fortey, R A, Harper, D A T, Ingham, J K, Owen, A W and Rushton, A W A. 1995. A revision of Ordovician series and stages from the historical type area. Geological Magazine, Vol., 132, 15-30. Gradstein, F M, and Ogg, J. 1996. A Phanerozoic time scale. Episodes, Vol.19, 3-5.Logically consistent single geochronological scheme.

Reference System Information

No information provided.
Distribution format
  • ORACLE - Used as a domain constraint on corporate data tables ()

  Distributor

  +44 115 936 3276 
OnLine resource
BGS Geological Timechart  

The data held within the Digital geochronological index can be viewed within the BGS Geological Timechart which can be viewed by accessing the page this URL links to.

OnLine resource
BGS Enquiries  

Contact details for accessing the dataset can be viewed by accessing the 'BGS Enquiries' contact page that this URL links to.

Hierarchy level
nonGeographicDataset Non geographic dataset
Other
non geographic dataset

Conformance result

Date ( Publication )
2011
Explanation
See the referenced specification
Pass
false

Conformance result

Date ( Publication )
2010-12-08
Explanation
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
Pass
false
Statement
Developed from the pre-existing DIC_CHRONOSTRAT, parts of which had become obsolete. The development followed the recommendations of the BGS Stratigraphy Committee. DIC_CHRONOSTRAT was itself developed from a pre-existing digital chronostratigraphical index which formed segment CSCO of BGS.DIC.

gmd:MD_Metadata

File identifier
9df8df51-6401-37a8-e044-0003ba9b0d98   XML
Metadata language
English English
Hierarchy level
nonGeographicDataset Non geographic dataset
Hierarchy level name
non geographic dataset
Date stamp
2020-04-03
Metadata standard name
UK GEMINI
Metadata standard version
2.3

  Point of contact

Dataset URI
http://data.bgs.ac.uk/id/dataHolding/13480463
 
 

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