The use of high frequency microwaves in absolute palaeomagnetic intensity experiments Article Swipe
Simon J. Lloyd
,
Andrew J. Biggin
,
Mimi J. Hill
,
Lennart V. de Groot
,
Neil Suttie
,
Joseph P. Morris
,
Harald N. Boehnel
,
John Shaw
·
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.3389/feart.2023.1188528
YOU?
·
· 2023
· Open Access
·
· DOI: https://doi.org/10.3389/feart.2023.1188528
The Microwave Palaeointensity System at the University of Liverpool has developed, over 30 years, into the current third generation version; a combined 14 GHz microwave resonant cavity and superconducting quantum interference device magnetometer integrated microwave system. The use of microwave energy minimises the bulk temperatures required to demagnetise and remagnetise palaeomagnetic material, thereby limiting the significant problem of thermo-chemical alteration of magnetic minerals. Here we review the microwave palaeointensity approach, including its development, technical details, modern usage and results. We have carried out a comprehensive analysis of 20 palaeointensity studies, published between 2008 and 2022, where data collected using the microwave system may be compared with various other methods at the site level. An assessment of microwave results revealed no statistical bias compared to thermal, and known field data. We also present results from a new controlled experiment which tests the ability of the microwave to accurately recover weak, ancient palaeointensities when strongly overprinted. We conclude that the microwave system can be used for the primary method of determining accurate absolute palaeointensities or as part of a multi-method approach, and is well suited to a wide range of material from archaeomagnetic samples to ancient rocks.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3389/feart.2023.1188528
- OA Status
- gold
- Cited By
- 1
- References
- 83
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4380680580
All OpenAlex metadata
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https://openalex.org/W4380680580Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3389/feart.2023.1188528Digital Object Identifier
- Title
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The use of high frequency microwaves in absolute palaeomagnetic intensity experimentsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2023Year of publication
- Publication date
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2023-06-15Full publication date if available
- Authors
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Simon J. Lloyd, Andrew J. Biggin, Mimi J. Hill, Lennart V. de Groot, Neil Suttie, Joseph P. Morris, Harald N. Boehnel, John ShawList of authors in order
- Landing page
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https://doi.org/10.3389/feart.2023.1188528Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.3389/feart.2023.1188528Direct OA link when available
- Concepts
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Microwave, Archaeomagnetic dating, Microwave cavity, Magnetometer, Cosmic microwave background, Range (aeronautics), Thermal, Magnetic field, Geology, Physics, Materials science, Optics, Earth's magnetic field, Meteorology, Anisotropy, Quantum mechanics, Composite materialTop concepts (fields/topics) attached by OpenAlex
- Cited by
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1Total citation count in OpenAlex
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2025: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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