Results 101 to 110 of about 4,304 (252)

Synchronizing Geomagnetic Field Intensity Records in the Levant Between the 23rd and 15th Centuries BCE: Chronological and Methodological Implications

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Archeomagnetic records are an important source of information on the past behavior of the geomagnetic field. Frequently, however, coeval archeomagnetic intensity (archeointensity) datasets from nearby locations display significant discrepancies ...
Ron Shaar   +7 more
doaj   +1 more source

Increasing the Accuracy and Efficiency of Micromagnetic Tomography by Double Sided Scanning

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract Paleomagnetic data are usually retrieved by subjecting bulk samples, for example lavas, to laboratory measurement protocols. In many instances, the data related to these protocols yield uninterpretable results caused by the presence of particles with adverse magnetic properties that blur the signal of the reliable magnetic particles.
Frenk Out   +4 more
wiley   +1 more source

Geomagnetic intensity as a tool for high resolution stratigraphy for marine sediments and ice cores [PDF]

open access: yes, 2016
第3回極域科学シンポジウム 横断セッション「海・陸・氷床から探る後期新生代の南極寒冷圏環境変動」11月26日(月) 国立国語研究所 ...
Suganuma Yusuke
core   +1 more source

Selection of Basalts for Paleointensity Studies

open access: yesJournal of geomagnetism and geoelectricity, 1986
The selection of basalt samples for the determination of paleointensity, proposed by SENANAYAKE et al. (1982) based mainly on the low-temperature susceptibility variation, may not be adequate for the purpose. Besides the Type 2 basalts in their classification, the magnetic mineral Fe2.9Ti0.1O4 (TM10), which occurs commonly in basalts, also shows an ...
openaire   +2 more sources

Paleointensity results from the Jurassic: New constraints from submarine basaltic glasses of ODP Site 801C

open access: yesGeochemistry, Geophysics, Geosystems, 2013
Tholeiite of the oldest oceanic crust was drilled during ODP Legs 129 and 185 at Hole 801C in the western Pacific. Fresh appearing submarine basaltic glass (SBG) was recovered from the tholeiites (∼167 Ma) which has been shown to be nearly ideal for ...
L. Tauxe   +3 more
doaj   +1 more source

The glacial cycles and cosmic rays

open access: yes, 2004
The cause of the glacial cycles remains a mystery. The origin is widely accepted to be astronomical since paleoclimatic archives contain strong spectral components that match the frequencies of Earth's orbital modulation.
Kirkby, J., Mangini, A., Muller, R. A.
core  

Evidence for an Exceptionally Weak Cambrian Geomagnetic Field: New Paleointensity Estimates From the Florida Mountains, New Mexico

open access: yesGeochemistry, Geophysics, Geosystems
The timing of the formation of the Earth's inner core remains a major mystery in the history of Earth's deep interior, with estimates ranging from >1 billion years to
J. Michael Grappone   +3 more
doaj   +1 more source

Variations of paleointensity in the Paleogene

open access: yes, 2013
Behavior of the geomagnetic field intensity in the Paleogene from sedimentary rocks of the Russian Plate was investigated. It is revealed that in the beginning of the Paleogene alternating of paleointensity variations of little amplitude (about 0.5 Ho, where Ho is the value of modern geomagnetic field taken as 40 mkT) and bursts of large amplitude (up ...
Kurazhkovskii, A. Yu.   +2 more
openaire   +2 more sources

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