Rochechouart impact crater melt breccias record no geomagnetic field reversal

M Eitel, SA Gilder, T Kunzmann, J Pohl - Earth and Planetary Science …, 2014 - Elsevier
Impact melt breccias from the Rochechouart (France) meteorite crater possess
paleomagnetic directions with both normal and reverse polarities, raising the question …

Evidence for coeval Late Triassic terrestrial impacts from the Rochechouart (France) meteorite crater

L Carporzen, SA Gilder - Geophysical Research Letters, 2006 - Wiley Online Library
High temperature impact melt breccias from the Rochechouart (France) meteorite crater
record a magnetization component with antipodal, normal and reverse polarities. The …

Ries magnetic mineralogy: Exploring impact and post‐impact evolution of crater magnetism

BDL Mendes, A Kontny, K Dudzisz… - Meteoritics & Planetary …, 2024 - Wiley Online Library
Large‐scale impact events are some of the most catastrophic and instantaneous geological
processes in nature, and leave in their wake conspicuous geological structures with …

The Slate Islands meteorite impact site: A study of shock remanent magnetization

HC Halls - Geophysical Journal International, 1979 - academic.oup.com
A detailed palaeomagnetic study of the Slate Islands meteorite impact site, northern Lake
Superior, has successfully isolated a secondary component of remanence which on the …

Magnetic signatures of terrestrial meteorite impact craters: A summary

SA Gilder, J Pohl, M Eitel - Magnetic fields in the solar system: Planets …, 2018 - Springer
This chapter summarizes the magnetic characteristics of meteorite impact craters. Magnetic
mineralogies of both impact melts and target rocks are described, as are the paleomagnetic …

The Kiaman Reversed Polarity Superchron at Kiama: Toward a field strength estimate based on single silicate crystals

RD Cottrell, JA Tarduno, J Roberts - Physics of the Earth and Planetary …, 2008 - Elsevier
We present the first geomagnetic paleointensity measurements on single plagioclase
crystals from lavas formed during the∼ 262–318Ma Permo-Carboniferous Reverse Polarity …

Paleomagnetic study of impactites from the Karla impact structure suggests protracted postimpact hydrothermalism

DM Kuzina, J Gattacceca, NS Bezaeva… - … & Planetary Science, 2022 - Wiley Online Library
We present a paleomagnetic study of the~ 10 km diameter Karla impact structure in Russia.
We sampled the target carbonate rocks, and a yet undocumented fragmental melt‐bearing …

A paleomagnetic and rock magnetic study of the Manicouagan impact structure: Implications for crater formation and geodynamo effects

M Eitel, SA Gilder, J Spray… - Journal of Geophysical …, 2016 - Wiley Online Library
We report rock magnetic and paleomagnetic data from the~ 214 Ma Manicouagan (Canada)
impact crater based on 25 widely distributed sites of impact melt and basement rocks …

In search of high‐fidelity geomagnetic paleointensities: A comparison of single plagioclase crystal and whole rock Thellier‐Thellier analyses

RD Cottrell, JA Tarduno - Journal of Geophysical Research …, 2000 - Wiley Online Library
The strength of Earth's magnetic field, on timescales greater than a million years, is known
primarily from Thellier‐Thellier analyses of igneous rocks. In the Thellier‐Thellier method …

The paleomagnetism of single silicate crystals: Recording geomagnetic field strength during mixed polarity intervals, superchrons, and inner core growth

JA Tarduno, RD Cottrell, AV Smirnov - Reviews of Geophysics, 2006 - Wiley Online Library
The basic features of the geomagnetic reversal chronology of the last 160 million years are
well established. The relationship between this history and other features of the field …