@article{Bellon:2026,
author = {Bellon, U and Souza-Junior, GF and Williams, W and Muxworthy, AR and Uieda, L and Fu, R and Trindade, R and Moraes, C},
journal = {Communications Earth & Environment},
title = {Estimating Earth’s past field strength from individual sources in archaeological ceramics using Quantum Diamond Microscopy},
year = {2026}
}

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TY  - JOUR
AB  - We present the first full palaeointensity protocol based on quantum diamond microscope (QDM) measurements of individual magnetic sources in thin sections of archaeological ceramics. QDM enables identification and tracking of magnetic anomalies, allowing ideal palaeomagnetic recorders to be analysed while excluding poorly behaved contributors that dominate bulk measurements. Magnetic moments of near-subsurface sources are inverted from QDM maps and tracked during alternating-field demagnetisation (AF) and anhysteretic remanent magnetisation (ARM) acquisition. Mean directions from selectively inverted sources closely match bulk measurements from a cryogenic rock magnetometer. By filtering sources based on inversion quality and magnetic behaviour, we show that for well-separated dipole-like signals, Pseudo-Arai slopes derived from fitted ARM acquisition and AF demagnetisation curves yield palaeointensity estimates consistent with double-heating absolute palaeointensity results on sister samples.Combined with micromagnetic modelling constraints linking ARM and thermoremanent magnetisation, these results demonstrate that QDM-based palaeointensity methods offer a promising route to high-precision micropalaeomagnetic analysis.
AU  - Bellon,U
AU  - Souza-Junior,GF
AU  - Williams,W
AU  - Muxworthy,AR
AU  - Uieda,L
AU  - Fu,R
AU  - Trindade,R
AU  - Moraes,C
PY  - 2026///
SN  - 2662-4435
TI  - Estimating Earth’s past field strength from individual sources in archaeological ceramics using Quantum Diamond Microscopy
T2  - Communications Earth & Environment
ER  - 

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