Results 31 to 40 of about 402 (119)

Archaeointensity study of five Late Bronze Age fireplaces from Corent (Auvergne, France) [PDF]

open access: yes, 2016
International audienceRecent excavations at Corent (France) unearthed a vast Late Bronze Age settlement. The high density of fireplaces especially highlights it. The present study focuses on the archaeomagnetic study of five fireplaces.
Aidona   +31 more
core   +3 more sources

Reconstructing the geomagnetic field in west africa: first absolute intensity results from Burkina Faso [PDF]

open access: yes, 2017
We present absolute geomagnetic intensities from iron smelting furnaces discovered at the metallurgical site of Korsimoro, Burkina Faso. Up to now, archaeologists recognized four different types of furnaces based on different construction methods ...
Donadini, Fabio   +5 more
core   +1 more source

Dipole and Nondipole Evolution of the Historical Geomagnetic Field From Instrumental, Archeomagnetic, and Volcanic Data [PDF]

open access: yes, 2021
Although a large number of magnetic declination and inclination measurements are available for the historical period from 1400 to 1900 CE, even the evolution of the axial dipole moment, the most prominent quantity of the geomagnetic field, is highly ...
Arneitz, P.   +3 more
core   +1 more source

Intensity of the geomagnetic field in Europe for the last 3 ka: Influence of data quality on geomagnetic field modeling

open access: yesGeochemistry, Geophysics, Geosystems, 2014
One of the main challenges of paleomagnetic research is to obtain high‐resolution geomagnetic field intensity reconstructions. For the last millennia, these reconstructions are mostly based on archeomagnetic data.
Francisco Javier Pavón‐Carrasco   +4 more
doaj   +1 more source

Epsilon iron oxide: Origin of the high coercivity stable low Curie temperature magnetic phase found in heated archeological materials [PDF]

open access: yes, 2017
The identification of epsilon iron oxide (-Fe2O3) as the low Curie temperature high coercivity stable phase (HCSLT) carrying the remanence in heated archeological samples has been achieved in samples from two archeological sites that exhibited the ...
Campo García, A. del   +7 more
core   +2 more sources

Bulk magnetic domain stability controls paleointensity fidelity [PDF]

open access: yes, 2017
Nonideal, nonsingle-domain magnetic grains are ubiquitous in rocks; however, they can have a detrimental impact on the fidelity of paleomagnetic records—in particular the determination of ancient magnetic field strength (paleointensity), a key means of ...
Muxworthy, Adrian R   +3 more
core   +1 more source

The impact of geomagnetic spikes on the production rates of cosmogenic 14C and 10Be in the Earth's atmosphere [PDF]

open access: yes, 2015
We seek corroborative evidence of the geomagnetic spikes detected in the Near East ca. 980 BC and 890 BC in the records of the past production rates of the cosmogenic nuclides 14C and 10Be.
Alexandre Fournier   +34 more
core   +3 more sources

One Hundred Thousand Years of Geomagnetic Field Evolution

open access: yesReviews of Geophysics, Volume 57, Issue 4, Page 1289-1337, December 2019., 2019
Abstract Paleomagnetic records from sediments, archeological artifacts, and lava flows provide the foundation for studying geomagnetic field changes over 0–100 ka. Late Quaternary time‐varying spherical harmonic models for 0–100 ka produce a global view used to evaluate new data records, study the paleomagnetic secular variation on centennial to ...
S. Panovska, M. Korte, C. G. Constable
wiley   +1 more source

A comprehensive paleomagnetic study from the last Plinian eruptions of Popocatepetl volcano: absolute chronology of lavas and estimation of emplacement temperatures of PDCs

open access: yesEarth, Planets and Space, 2019
Three lava flows (Buenavista, Xalitzintla and Nealtican) and pyroclastic density currents (Lorenzo and Pink Pumice) from two Popocatepetl Plinian eruptions were sampled for paleomagnetic dating.
Nayeli Pérez-Rodríguez   +3 more
doaj   +1 more source

Geomagnetic spikes on the core-mantle boundary [PDF]

open access: yes, 2017
Extreme variations of Earth’s magnetic field occurred in the Levant region around 1000 BC, when the field intensity rapidly rose and fell by a factor of 2.
Constable, C, Davies, C
core   +6 more sources

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