Results 111 to 120 of about 1,861 (213)

High geomagnetic field intensity recorded by anorthosite xenoliths requires a strongly powered late Mesoproterozoic geodynamo. [PDF]

Proc Natl Acad Sci U S A, 2022
Zhang Y, Swanson-Hysell NL, Avery MS, Fu RR.   +3 more
europepmc   +1 more source

Paleomagnetic Secular Variations in North Greenland Around 81°N Over the Last 6,000 Years

Geochemistry, Geophysics, Geosystems
We investigate full vector paleomagnetic changes recorded in high‐resolution sediments of Petermann Fjord, North Greenland, deposited over the last 6 kyr, in the context of the recent rapid changes in the geomagnetic field.
Juliette Girard, Brendan T. Reilly, Guillaume St‐Onge, France Lagroix, Jean‐Carlos Montero‐Serrano, Joesph S. Stoner, Anne E. Jennings   +6 more
doaj   +1 more source

Late Cambrian geomagnetic instability after the onset of inner core nucleation. [PDF]

Nat Commun, 2023
Li YX, Tarduno JA, Jiao W, Liu X, Peng S, Xu S, Yang A, Yang Z.   +7 more
europepmc   +1 more source

Removing Climatic Overprints in Sedimentary Cosmogenic Beryllium Records: Potentials and Limits

Geochemistry, Geophysics, Geosystems
Continuous reconstructions of past variations of the Earth's magnetic field are based mainly on paleomagnetic and cosmogenic 10Be records in marine sediments. In both cases, the recording mechanisms can be affected by environmental processes.
Tatiana Savranskaia, Ramon Egli, Quentin Simon, Jean‐Pierre Valet, Franck Bassinot, Nicolas Thouveny   +5 more
doaj   +1 more source

Magnetic properties and natural remanent magnetization of carbonaceous chondrites containing pyrrhotite [PDF]

, 1991
Magnetic properties, NRM characteristics and magnetic minerals of four carbonaceous chondrites, the Allende, the Leoville, Y-74662 and Y-81020,are examined. These C-chondrites contain ferrimagnetic pyrrhotite grains in addition to magnetite, kamacite and/
Hideyasu Kojima, Minoru Funaki, Takesi Nagata   +2 more
core   +1 more source

Early Cambrian renewal of the geodynamo and the origin of inner core structure. [PDF]

Nat Commun, 2022
Zhou T, Tarduno JA, Nimmo F, Cottrell RD, Bono RK, Ibanez-Mejia M, Huang W, Hamilton M, Kodama K, Smirnov AV, Crummins B, Padgett F.   +11 more
europepmc   +1 more source

Does size matter? Statistical limits of paleomagnetic field reconstruction from small rock specimens [PDF]

, 2015
Berndt, T, Fabian, K, Muxworthy, AR
core   +1 more source

Archaeomagnetism in the Levant and Mesopotamia Reveals the Largest Changes in the Geomagnetic Field. [PDF]

J Geophys Res Solid Earth, 2022
Shaar R, Gallet Y, Vaknin Y, Gonen L, Martin MAS, Adams MJ, Finkelstein I.   +6 more
europepmc   +1 more source

Paleomagnetic evidence for a long-lived, potentially reversing martian dynamo at ~3.9 Ga. [PDF]

Sci Adv, 2023
Steele SC, Fu RR, Volk MWR, North TL, Brenner AR, Muxworthy AR, Collins GS, Davison TM.   +7 more
europepmc   +1 more source

Stalagmite paleomagnetic record of a quiet mid-to-late Holocene field activity in central South America. [PDF]

Nat Commun, 2022
Jaqueto P, Trindade RIF, Terra-Nova F, Feinberg JM, Novello VF, Stríkis NM, Schroedl P, Azevedo V, Strauss BE, Cruz FW, Cheng H, Edwards RL.   +11 more
europepmc   +1 more source