Data Publication
Paleomagnetic, rock-magnetic and paleointensity data from three early Paleozoic geological units: plutons of the Araçuaí orogen, Brazil; Gabbros of Aberdeenshire, Scotland; and a Silurian volcanic succession of the southern Britain
Lloyd, Simon | Hopkins, Rebecca | Brabin, Joseph
NERC EDS National Geoscience Data Centre
(2026)
Descriptions
The dataset contains results from three early Paleozoic geological units: the approximately 500 Ma Santa Angélica and Venda Nova plutons of the Araçuaí orogen, Brazil; the approximately 470 Ma Younger Gabbros of Aberdeenshire, Scotland; and the approximately 430 Ma Silurian volcanic succession of the East Mendips Inlier, southern Britain. The deposited files include specimen- and site-level paleointensity results, paleomagnetic directional data, rock-magnetic measurements, methodological and selection-criteria information, and the processed data used to construct the long-term virtual dipole moment and geomagnetic polarity-reversal-frequency synthesis. Upload-ready files for analysis using Paleomagnetism.org and Paleointensity.org are also included, together with file-level metadata. These data provide new estimates of geomagnetic field strength from approximately 500-430 Ma and help fill a major gap in the Phanerozoic paleointensity record. They were used to investigate the relationship between long-term geomagnetic dipole moment and polarity reversal frequency. Data support the paper "Geomagnetic dipole moment and polarity reversal frequency covary on a ~200-million-year timescale". The paper identifies the three datasets and their respective ages and locations, and states that the deposit contains upload-ready analytical files, metadata and the data used to construct the long-term synthesis.
Keywords
MSL enriched keywords
MSL vocabulary keywords corresponding to originally assigned keywords
Originally assigned keywords
Metadata
MSL enriched sub domains
Source
Source publisher
| NERC EDS National Geoscience Data Centre |
Creators
| Lloyd, Simon |
| Personal |
| University of Liverpool |
| Hopkins, Rebecca |
| Personal |
| University of Liverpool |
| Brabin, Joseph |
| Personal |
| University of Liverpool |
Citation
Lloyd, S., Hopkins, R., & Brabin, J. (2026). Paleomagnetic, rock-magnetic and paleointensity data from three early Paleozoic geological units: plutons of the Araçuaí orogen, Brazil; Gabbros of Aberdeenshire, Scotland; and a Silurian volcanic succession of the southern Britain [Dataset]. NERC EDS National Geoscience Data Centre. https://doi.org/10.5285/25EC9DA7-0DA9-4E4C-8AAB-F8C4646936E4
Dates
| Available | 2026-07-17 |
Language
- no language entry found -
Funding References
| Funder Name | Natural Environment Research Council |
| Funder Identifier | https://doi.org/10.13039/501100000270 |
| Award Number | NE/X014142/1 |
| Award Title | Palaeomagnetic field behaviour in the Palaeozoic and the hunt for inner core birth |
Locations
Geo location(s)
Brazil
Aberdeenshire, Scotland
southern Britain