Results 101 to 110 of about 317 (130)
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On archeomagnetic secular variation curves and archeomagnetic dating
Physics of the Earth and Planetary Interiors, 2002Abstract Secular variation (SV) of the Earth’s magnetic field can be used for dating purposes by comparing archeomagnetic directions of unknown ages with a well-dated reference curve. In this study, we propose a dating technique based on the statistics of McFadden and McElhinny [Geophys. J. Int.
Maxime Le Goff +3 more
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High coercivity remanence in baked clay materials used in archeomagnetism [PDF]
Geochemistry, Geophysics, Geosystems, 2011 A study of the high coercivity remanence in archeological baked clays has been carried out. More than 150 specimens from 46 sites across Europe have been analyzed, selected on the basis of the presence of a fraction of their natural remanence that was resistant to alternating field demagnetization to 100 mT.
Gregg McIntosh, Maria Luisa Osete
exaly +3 more sources
Earth and Planetary Science Letters, 2010
Abstract An archeomagnetic paleosecular variation (PSV) was first defined in Korea using baked materials collected from 26 kilns or hearths with ages ranging from ∼ 1100 BC to AD 1790. Variations of geomagnetic declination and inclination from the Korean peninsula are distinctively different from the prediction of a global model (CALS3k.3 or CALS7K.2)
Yongjae Yu +14 more
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Abstract An archeomagnetic paleosecular variation (PSV) was first defined in Korea using baked materials collected from 26 kilns or hearths with ages ranging from ∼ 1100 BC to AD 1790. Variations of geomagnetic declination and inclination from the Korean peninsula are distinctively different from the prediction of a global model (CALS3k.3 or CALS7K.2)
Yongjae Yu +14 more
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Archeomagnetism of Ontario potsherds from the last 2000 years [PDF]
Journal of Geophysical Research, 2000 An archeomagnetic study was carried out on potsherds samples from sites in Ontario with ages ranging from A.D. 90 to A.D. 1640 as determined by 14C dating. Thellier double‐heating paleointensity experiments were performed in air on 65 specimens of 52 samples from seven sample sets.
Yongjae Yu
exaly +2 more sources
1978
This cocument contains 2 letters concerning a proposal for an archeomagnetic dating project in Compound A at the Casa Grande Ruins National Monument and the results of the work performed by the Earth Sciences Observatory at the University of Oklahoma.
DuBois, Robert, Anderson, Keith M.
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This cocument contains 2 letters concerning a proposal for an archeomagnetic dating project in Compound A at the Casa Grande Ruins National Monument and the results of the work performed by the Earth Sciences Observatory at the University of Oklahoma.
DuBois, Robert, Anderson, Keith M.
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Ships' Logs and Archeomagnetism
Science, 2006Ships' logs help show that the strength of Earth's magnetic field was stable until the mid- 1800s. Since then, flux changes may have caused a steady decline in strength.
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Archeomagnetic study of seven contemporaneous kilns from Murcia (Spain)
Physics of the Earth and Planetary Interiors, 2006New archeointensity values have been determined from seven Spanish kilns sampled at the same archeological site and dated by archeological constraints as between 1100 and 1200 a.d. The directions of the characteristic remanent magnetization and paleointensities have been obtained from classical Thellier experiments conducted on 69 samples collected ...
Gomez-Paccard, Miriam +4 more
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Geomagnetic field hemispheric asymmetry and archeomagnetic jerks
Earth and Planetary Science Letters, 2009Abstract We investigate the origin of the so-called archeomagnetic jerks detected in the French archeomagnetic record over the past three millennia. Although only very large-scale global archeomagnetic field models are currently available, we show that the occurrence of archeomagnetic jerks is intimately linked to what we define as “most eccentric ...
Yves Gallet +3 more
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