Results 71 to 80 of about 354 (102)

Regional archeointensity curve ArchJSK2k from 600 BCE to 1700 CE for East Asia and possible recurrence of the West Pacific Anomaly

Yutaka Yoshimura, Hyeon-Seon Ahn, Chie Kato, Yuhji Yamamoto, Chisato Anai, Yoshinori Tajiri, Tadahiro Hatakeyama, Masao Ohno   +7 more
openaire   +1 more source

High‐Fidelity Archeointensity Results for the Late Neolithic Period From Central China [PDF]

Geophysical Research Letters, 2020
Archeomagnetism focuses on exploring high-resolution variations of the geomagnetic field over hundreds to thousands of years. In this study, we carried out a comprehensive study of chronology, absolute and relative paleointensity on a late Neolithic site
Shuhui Cai, Lisa Tauxe, Chenglong Deng
exaly   +7 more sources

Geomagnetic field intensity behavior in South America between 400 AD and 1800 AD: First archeointensity results from Argentina [PDF]

Physics of the Earth and Planetary Interiors, 2011
An absolute archeointensity study in Northwest Argentina provided 25 independent geomagnetic field lectures supported by 37 radiometric dates between AD 400 and 1800.
Avto Goguitchaichvili, Catriel Greco, Juan Morales   +2 more
exaly   +5 more sources

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High-temperature archeointensity measurements from Mesopotamia

Earth and Planetary Science Letters, 2006
We present new archeointensity results obtained from 127 potsherds and baked brick fragments dated from the last four millennia BC which were collected from different Syrian archeological excavations. High temperature magnetization measurements were carried out using a laboratory-built triaxial vibrating sample magnetometer (Triaxe), and ancient field ...
Yves Gallet
exaly   +2 more sources

Two thousand years of archeointensity from West Africa

Earth and Planetary Science Letters, 2013
This study presents 17 archeointensity estimates from Senegal and Mali, two neighboring countries in West Africa, for the period 1000 BCE to 1000 CE. The archeological artifacts used in this study were collected during the course of two separate projects, together spanning 22 years and across 8 separate excavations.
Lisa Tauxe
exaly   +2 more sources

Archeointensity in Northeast Brazil over the past five centuries

Earth and Planetary Science Letters, 2010
Abstract This study presents the first archeointensity results from Northeast Brazil obtained from 14 groups of architectural brick fragments sampled in the city of Salvador, Bahia State (13°S, 38.5°W) and dated between the middle of the XVIth century and the beginning of the XIXth century.
Gelvam A Hartmann, Agnès Genevey, Yves Gallet   +2 more
exaly   +2 more sources

Archeomagnetic intensity investigations of French medieval ceramic workshops: Contribution to regional field modeling and archeointensity-based dating

Physics of the Earth and Planetary Interiors, 2021
Seven new archeointensity data are obtained through the analysis of groups of pottery and kiln fragments from ceramic workshops unearthed in France, precisely dated from the High Middle Ages. The measurements are carried out using the Triaxe magnetometer, following a dedicated experimental protocol that takes into account the effects of anisotropy and ...
Genevey, Agnès, Gallet, Yves, Thébault, Erwan, Livermore, Philip W., Fournier, Alexandre, Jesset, Sébastien, Lefèvre, Annie, Mahé-Hourlier, Nadine, Marot, Emmanuel, Regnard, Stéphane   +9 more
exaly   +5 more sources

GEOMAGIA50: An archeointensity database with PHP and MySQL

Geochemistry, Geophysics, Geosystems, 2008
The GEOMAGIA50 database stores 3798 archeomagnetic and paleomagnetic intensity determinations dated to the past 50,000 years. It also stores details of the measurement setup for each determination, which are used for ranking the data according to prescribed reliability criteria. The ranking system aims to alleviate the data reliability problem inherent
K. Korhonen, F. Donadini, P. Riisager, L. J. Pesonen   +3 more
exaly   +2 more sources

New archeointensity data from Spain and the geomagnetic dipole moment in western Europe over the past 2000 years [PDF]

Journal of Geophysical Research, 2008
Archeomagnetic studies on 14 kilns, a group of jar fragments, and a collection of baked bricks dated between 1000 and 1959 AD plus one Roman pottery kiln have been conducted in order to obtain high‐quality archeointensity data to enhance the western European database.
Miriam Gomez-Paccard
exaly   +3 more sources

Analyzing the geomagnetic axial dipole field moment over the historical period from new archeointensity results at Bukhara (Uzbekistan, Central Asia)

Physics of the Earth and Planetary Interiors, 2021
Abstract Since the mid-19th century, direct measurements of both intensity and directions of the Earth's magnetic field have been available, allowing an accurate determination of its spatio-temporal variations. Prior to this time, between ∼1600 and 1840, only direct directional measurements are available.
Marie Troyano, Yves Gallet, Agnès Genevey   +2 more
exaly   +2 more sources