Early Cambrian renewal of the geodynamo and the origin of inner core structure

T Zhou, JA Tarduno, F Nimmo, RD Cottrell… - Nature …, 2022 - nature.com
Paleomagnetism can elucidate the origin of inner core structure by establishing when
crystallization started. The salient signal is an ultralow field strength, associated with waning …

The PINT database: A definitive compilation of absolute palaeomagnetic intensity determinations since 4 billion years ago

RK Bono, GA Paterson, A van der Boon… - Geophysical Journal …, 2022 - academic.oup.com
Palaeomagnetic field intensity measurements, derived from rocks with ages that span
geological time, provide a crucial constraint on the evolution of Earth's deep interior and its …

The Cretaceous normal superchron: a mini-review of its discovery, short reversal events, paleointensity, paleosecular variations, paleoenvironment, volcanism, and …

Y Yoshimura - Frontiers in Earth Science, 2022 - frontiersin.org
The Cretaceous Normal Superchron (CNS) was first defined in the 1960s to explain the
Cretaceous Quiet Zone in marine magnetic anomaly profiles, which includes no or fewer …

Rock magnetic characterization of returned samples from asteroid (162173) Ryugu: implications for paleomagnetic interpretation and paleointensity estimation

M Sato, Y Kimura, S Tanaka… - Journal of …, 2022 - Wiley Online Library
In this study, systematic rock magnetic measurements and saturation isothermal remanent
magnetization (SIRM) paleointensity calibration experiments were conducted for the …

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

C Kato, Y Usui, M Sato - Earth, Planets and Space, 2024 - Springer
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 …

Absolute Paleointensity Experiments on Aged Thermoremanent Magnetization: Assessment of Reliability of the Tsunakawa‐Shaw and Other Methods With …

Y Yamamoto, L Tauxe, H Ahn… - Geochemistry …, 2022 - Wiley Online Library
Absolute paleointensity (API) of the geomagnetic field can be estimated from volcanic rocks
by comparing the natural remanent magnetization (NRM) to a laboratory‐induced …

Salient changes of Earth's magnetic field toward the end of Cretaceous Normal Superchron (CNS)

X Liu, YX Li, C Richter - Journal of Geophysical Research: Solid …, 2024 - Wiley Online Library
Abstract Changes in Earth's magnetic field during the Cretaceous Normal Superchron (CNS)
spanning∼ 121 Ma to∼ 84 Ma hold important clues about the geodynamo evolution …

Paleomagnetic inclinations and relative paleointensity variations during the upper Aptian to middle Albian in Sergipe-Alagoas Basin, South Atlantic Ocean (NE Brazil)

R Gewehr de Mello, JF Savian, G Fauth… - Geophysical Journal …, 2025 - academic.oup.com
SUMMARY During the Jurassic and Early Cretaceous, Earth's magnetic field experienced a
high frequency of polarity reversals. This hyperactivity period is followed by a∼ 38 Myr …

Variation of iron species in plagioclase crystals by X‐ray absorption fine structure analysis

R Nakada, M Sato, M Ushioda… - Geochemistry …, 2019 - Wiley Online Library
Speciation analysis of Fe in single plagioclase crystals separated from two different gabbros
was performed to understand the crystallization mechanisms of magnetite exsolution. Iron …

New absolute paleomagnetic intensity data from Cenozoic basalts of Northeast China and exploring rock-magnetic parameters for efficient sample preselection on the …

HS Ahn, YS Lee, Y Yamamoto - Earth, Planets and Space, 2024 - Springer
Despite being essential in determining absolute paleomagnetic field intensity (API) with high
fidelity over Earth science research topics, API determination still suffers little quantitative …