A brief review of single silicate crystal paleointensity: rock-magnetic characteristics, mineralogical backgrounds, methods and applications

Single silicate crystals hosting tiny magnetic inclusions are remarkable targets to study the paleointensities of the Earth and extraterrestrial samples. Since the pioneering work done in late 1990s, paleointensity studies using various silicate minerals such as feldspar, quartz, zircon, pyroxene, a...

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Published inEarth, planets, and space Vol. 76; no. 1; pp. 49 - 18
Main Authors Kato, Chie, Usui, Yoichi, Sato, Masahiko
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2024
Springer
Springer Nature B.V
SpringerOpen
Subjects
1. Geomagnetism
Crystals
Earth and Environmental Science
Earth Sciences
Environmental aspects
Exsolution
Frontier Letter
Geology
Geophysics/Geodesy
Grain growth
Inclusions
Magnetic inclusion
Magnetic properties
Magnetic studies
Mineralogy
Olivine
Paleointensity
Paleomagnetism
Pyroxene
Rocks
Silicates
Single crystal
Single crystals
Zircon
Japan
Exsolution
Paleointensity
Single crystal
Magnetic inclusion
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Summary:Single silicate crystals hosting tiny magnetic inclusions are remarkable targets to study the paleointensities of the Earth and extraterrestrial samples. Since the pioneering work done in late 1990s, paleointensity studies using various silicate minerals such as feldspar, quartz, zircon, pyroxene, and olivine with magnetic inclusions trapped during grain growth or exsolved from the host phase have been reported. It has been shown that some single crystals have the ability to record paleomagnetic information as reliable or more reliable than the whole rock, by direct comparison of the obtained paleointensity estimate from single crystal and the whole-rock sample or the magnetic observatory data. Various rock-magnetic studies also support the fidelity of these crystals. Here, we provide a brief review of the rock-magnetic characteristics of the single crystals, the mineralogical background of the hosting silicates, and experimental procedures developed to obtain reliable data from magnetically weak samples with distinctive rock-magnetic features. We also overview the studies on paleointensity and related topics on various terrestrial and extraterrestrial samples published mainly after the comprehensive reviews in late 2000s. The present review covers the advantages as well as the limitations and caveats of paleointensity studies using single crystal samples and will help readers who wish to utilize this technique in their research. Graphical Abstract
ISSN:1880-5981
1343-8832
1880-5981
DOI:10.1186/s40623-024-01994-w