2026-04-17T13:52:40Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1872222025-12-05T05:29:07Zcom_2072_1057col_2072_478857col_2072_478901col_2072_478917

00925njm 22002777a 4500 dc Rivero Montero, M. author Gómez Paccard, M. author Pavón Carrasco, F. J. author Cau Ontiveros, Miguel Ángel author Fantuzzi, Leandro author Martín Hernández, F. author Palencia Ortas, A. author Aidona, E. author Tema, E. author Kondopoulou, D. author Mas Florit, Catalina author Ramon Torres, J. author 2022-07-01T16:21:48Z 2023-12-31T06:10:19Z 2021 2022-07-01T16:21:48Z Absolute past geomagnetic intensity values can mainly be recovered by fired archaeological materials and volcanic rocks. Here, we present 10 new archeointensities from the Mediterranean region that help to better constrain geomagnetic field intensity changes in Europe over the last two millennia. The new archeointensity results were obtained from the Thellier classical method including thermoremanent magnetization (pTRM) checks and both the TRM anisotropy and cooling rate corrections and were derived from at least three specimens. The new data presented, together with a selection of previous archeointensities satisfying a set of quality criteria, confirm the presence of several intensity maxima in Europe over the last 2000 years. In particular, the new archeointensities allow to better define the starting point of the double-oscillation feature that occurred in Europe during the second half of the first millennium CE, and reinforce the existence of a relative maximum at the end of the 14th century - beginning of the 15th century in Western Europe. From selected European archeointensities two new paleosecular variation curves are constructed for Western and Eastern Europe using temporal cubic b-splines in a bootstrap approach. The obtained curves suggest that the occurrence of the intensity maxima is characterized by a period of about 300 ± 50 years. In addition, our results suggest that the maxima do not occur simultaneously in Western and Eastern Europe, pointing out an intensity eastward drift with a mean lag-time of about 100 years. Arqueologia Arqueometria Archaeology Archaeometry Refining geomagnetic field intensity changes in Europe between 200 CE and 1800 CE. New data from the Mediterranean region