Absolute Palaeointensity (PINT) Database

Database Interface


Palaeointensity Methods


QPI Wiki

PINT and the path to the perfect palaeointensity

Useful Links

Liverpool Geomag Group

Earth, Ocean & Ecological Sciences, Liverpool




Andy Biggin's homepage


Welcome to the homepage of the PINT Database. This database of absolute palaeointensity measurements is maintained by Andy Biggin in the Department of Earth, Ocean and Ecological Sciences at the University of Liverpool in the U.K.

Important Note: The content of this database and associated compilations has been produced by the managers (current and past) based on their reading of the given source references. Every attempt has been made to ensure accuracy and this has occasionally involved recalculation of parameters from those originally published. Furthermore, the nature of the content, derived as it is from a very diverse set of sources, implies that it may not be free from the subjective bias of the manager. Users and, in particular, authors of the primary sources are strongly encouraged to raise any issues directly with the current manager.

Left-click here to access the latest version (2015.05) of PINT via a queryable interface.

Right-click here to download the latest version of PINT (2015.05) as an MS Excel spreadsheet.

The PINT database was most-recently described in Biggin et al. (2010, Eos, 91, 15). It was most-recently analysed in Biggin et al. (2009, Earth Planets Space, 61, 9-22). Both papers are available from here and we would be grateful if you could cite the 2009 paper when you refer to the database in a published study.

All new PINT data are analysed using the QPI criteria as outlined in Biggin & Paterson (2014, Frontiers in Earth Sciences 2:24. doi: 10.3389/feart.2014.00024). A PDF of the paper can also be found here. A wiki for the QPI criteria can be found here.

Background and information

The aim of the PINT database is to catalogue all absolute palaeointensity data with ages > 50 ka which have been published in the peer-reviewed literature. The data is provided at the cooling unit level or, in the case of large intrusions, at the sampling site level. In some cases, the data provided in the publication only allows averages of multiple cooling units to be given. In such cases, this should be a Field.

Superceded results are NOT removed from the database and duplicated measurements are NOT combined. If two or more mean measurements (produced using different methods for example) are published for a single cooling unit then each go into the database separately. In all such cases, this should be apparent from the associated entry in the COMMENTS the associated entry in the COMMENTS Field.

The 2003 version of the IAGA absolute palaeointensity database was described in detail by Perrin & Schnepp (2004; PEPI 147, 255-267). It was updated through late 2006 by Lisa Tauxe (Tauxe, L. and Yamazaki, T, 2007. Paleointensities, in: Treatise on Geophysics, Schubert, G. (ed.), vol. 5, Geomagnetism, 509-564, Oxford: Elsevier Ltd.) and since then by Andy Bigginool.academia.edu/AndrewBiggin">Andy Biggin (with help from various people - see updates).A new website for PINT with a queryable interface was created in July, 2009. A big thank you to Alan McCormack for writing the code for the interface and assisting with its web-hosting.

The data, formerly included in PINT 2003, with ages less than 50 kyr are excluded from the latest version as these are now all included in the GEOMAGIA50 database. A copy of the 2003 database compiled by Mireille Perrin and still containing the 0-50ka data is available here available here. An alternative version of this database is maintained by the Borok Geophysical Observatory. Most PINT data are already in the MagIC database and new data will continue to be uploaded.

Please let me know if you spot any mistakes / omissions or have any suggestions for improvements.

8th May, 2015: PINT has been updated to version 2015.05 so it now has 41 additional palaeointensity estimates from 5 new references and many more MagIC links.

12th August, 2014: PINT has been updated to version 2014.01 with 85 new palaeointensity estimates from 11 references.

7th July, 2013:  Th of PINT has also been updated to include hyperlinks to MagIC records via the DOIs of the published references. To access these, "include references" in your search and click on entries in the MagIC column. Thanks to Rupert Minnett, Nick Jarboe, and Xiao Wang for their help with linking the two databases.

29th May, 2013:  The of PINT was updated with hyperlinks to MagIC records via the DOIs of the published references. More DOIs are on the way and the interface will also be updated with these links in the near future.

15th August, 2012:
 new data from 14 references were added to the database and a number of corrections were made (contact me if you would like details). Thanks go to Elliot Hurst (University of Liverpool) for helping with this. Thanks also to Valera Shcherbakov for providing the latest version of the BorokPINT database

3rd December, 2010:  178 new data from 11 references were added to the database and a number of corrections were made (contact me if you would like details). Thanks go to Ashley Clarke (University of Liverpool) for doing this update as part of his MESci final year project.

29th July, 2009:  145 new data from 11 references were added to the database. Thanks go to Andy Roberts (University of Liverpool) for help with this.

10th June, 2009: 42 new data from 3 references were added.

It was realised that the data carried over from PINT03 in the AGE, DAGE, SLAT, and SLONG fields were truncated after 1 decimal place (thanks to Leah Ziegler for pointing this out). This was rectified.

For the sake of consistency with the rest of the database, a  number of values in the 'DF' field known to record estimates of the standard error of the mean palaeointensity were replaced with a calculated sample standard deviation (the more usual 'error' quoted with mean palaeointensity estimates). This change was made to the 578 records associated with reference numbers 2,5,6,7,8,9,10,11,15,16,17,76,84,85,86,87,114,138,153,154,172.

15th August, 2008: A comparison with the 'BorokPINT' database (available from here) led to the addition of 217 new data from 14 references.