Results 81 to 90 of about 346 (179)

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

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

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

Paleointensity Estimates from Italian Kilns

Journal of geomagnetism and geoelectricity, 1986
Paleointensity estimates from three archeological sites are reported; field magnitudes (F) of 71.3±3.7μT and 75.3±1.2μT are obtained from two 1st century A. D. kilns, whilst a 3rd century B. C. kiln yields F=79.7±1.3μT. The present geomagnetic field in the area has a magnitude of 44.7μT.
openaire   +2 more sources

Local Magnetic Anomalies Explain Bias in Paleomagnetic Data: Consequences for Sampling

Geochemistry, Geophysics, Geosystems
Volcanic rocks are considered reliable recorders of past changes in the Earth's magnetic field. Recent flows, however, sometimes fail to produce the known magnetic field at the time of cooling. Previous research on Mt.
Romy Meyer, Lennart V. deGroot
doaj   +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

Exploring geomagnetic variations in ancient mesopotamia: Archaeomagnetic study of inscribed bricks from the 3rd-1st millennia BCE. [PDF]

Proc Natl Acad Sci U S A, 2023
Howland MD, Tauxe L, Gordin S, Altaweel M, Cych B, Ben-Yosef E.   +5 more
europepmc   +1 more source

Intensity of the Earth's magnetic field: Evidence for a Mid-Paleozoic dipole low. [PDF]

Proc Natl Acad Sci U S A, 2021
Hawkins LMA, Grappone JM, Sprain CJ, Saengduean P, Sage EJ, Thomas-Cunningham S, Kugabalan B, Biggin AJ.   +7 more
europepmc   +1 more source

Contrasting Recording Efficiency of Chemical Versus Depositional Remanent Magnetization in Sediments

Geophysical Research Letters
How and when sedimentary rocks record Earth's magnetic field is complex. Most studies assume a time‐progressive lock‐in mechanism during sediment deposition called depositional remanent magnetization (DRM).
Sophie C. Roud, Stuart A. Gilder
doaj   +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