Results 1 to 10 of about 1,792 (166)

Impact of turbulence on magnetic alignment in sediments

Frontiers in Earth Science, 2022
Rapidly deposited layers (RDL) such as turbidites or hyperpycnites are mostly studied for their sedimentological properties, but are carefully avoided in paleomagnetic studies due to the disturbances caused by such sudden and rapid sediment accumulation.
Édouard G. H. Philippe, Édouard G. H. Philippe, Jean-Pierre Valet, Guillaume St-Onge, Ramon Egli   +4 more
doaj   +1 more source

Quantifying Inclination Shallowing and Representing Flattening Uncertainty in Sedimentary Paleomagnetic Poles

Geochemistry, Geophysics, Geosystems, 2022
Inclination is the angle of a magnetization vector from horizontal. Clastic sedimentary rocks often experience inclination shallowing whereby syn‐ to post‐depositional processes result in flattened detrital remanent magnetizations relative to local ...
James Pierce, Yiming Zhang, Eben B. Hodgin, Nicholas L. Swanson‐Hysell   +3 more
doaj   +1 more source

Influence of Seasonal Post‐Depositional Processes on the Remanent Magnetization in Varved Sediments From Glacial Lake Ojibway (Canada)

Geochemistry, Geophysics, Geosystems, 2023
The natural remanent magnetization (NRM) of high sedimentation rate sediments provides significant information about paleomagnetic secular variation of the Earth's magnetic field and can also potentially be used for stratigraphy. However, NRM acquisition
Édouard G. H. Philippe, Guillaume St‐Onge, Jean‐Pierre Valet, Pierre‐Marc Godbout, Ramon Egli, Pierre Francus, Martin Roy   +6 more
doaj   +1 more source

A Feasibility Study of Microbialites as Paleomagnetic Recorders

Frontiers in Earth Science, 2021
Microbialites–layered, organosedimentary deposits–exist in the geologic record and extend back in deep time, including all estimated times of inner core nucleation.
Ji-In Jung, Julie A. Bowles
doaj   +1 more source

Detrital remanent magnetization in the solar nebula [PDF]

Journal of Geophysical Research: Planets, 2012
We introduce the theoretical basis of a new form of remanent magnetization that likely formed on primitive bodies in the solar system. Accretional detrital remanent magnetization (ADRM) operates via “compass needle”‐type alignment of ferromagnetic solids with locally uniform background fields in the solar nebula.
Fu, Roger Rennan, Weiss, Benjamin P.
openaire   +1 more source

Estimating post‐Depositional Detrital Remanent Magnetization (pDRM) Effects: A Flexible Lock‐In Function Approach

Journal of Geophysical Research: Solid Earth, 2023
AbstractThe primary data sources for reconstructing the geomagnetic field of the past millennia are archeomagnetic and sedimentary paleomagnetic data. Sediment records, in particular, are crucial in extending the temporal and spatial coverage of global geomagnetic field models, especially when archeomagnetic data are sparse.
L. Bohsung, M. Schanner, M. Korte, M. Holschneider   +3 more
openaire   +1 more source

Post-Depositional Fluid Flow in Jurassic Sandstones of the Uncompahgre Uplift: Insights From Magnetic Fabrics

Frontiers in Earth Science, 2020
The anisotropy of magnetic susceptibility (AMS) in sedimentary rocks results from depositional, diagenetic, syn- and post-sedimentary processes that affect magnetic grains. Some studies have also shown the potential role played by post-depositional fluid
John I. Ejembi, Eric C. Ferré, Sara Satolli, Sarah A. Friedman   +3 more
doaj   +1 more source

Absence of Cretaceous hairpin in the apparent polar wander path of southwest Japan: consistency in paleomagnetic pole positions

Geoscience Letters, 2023
To test the hypothesis that a Cretaceous hairpin turn is absent in the apparent polar wander path (APWP) of the inner arc of southwestern Japanese island (southwest Japan), we refined a mid-Cretaceous (100 Ma) paleomagnetic pole from southwest Japan. Red
Koji Uno, Honoka Ohara, Kuniyuki Furukawa, Tatsuo Kanamaru   +3 more
doaj   +1 more source

Magnetic prospecting and rock magnetic study of soils and archaeological objects on the Late Roman time sites near Komariv in Middle Transnistria

Геофизический журнал, 2022
The paper presents the outcome of the magnetic survey at the settlement and cemetery of the production center of the 3rd—5th centuries, Komariv (Khotyn district, Chernivtsi region), which is located on the right bank of the Dniester.
K.M. Bondar, O.V. Petrauskas, R.V. Khomenko, S.A. Popov   +3 more
doaj   +1 more source

The acquisition of post-depositional detrital remanent magnetization in a variety of natural sediments [PDF]

Geophysical Journal International, 1982
Summary. Post-depositional detrital remanent magnetization (pDRM) is the primary means whereby many sediments acquire their palaeomagnetic signal. We have studied the acquisition of this magnetization in a variety of natural sediments. Our technique involves determining the magnetic direction recorded by a sediment as a function of the water content ...
M. A. Payne, K. L. Verosub
openaire   +1 more source