%0 Journal Article
%A Rivero Montero, M.
%A Gómez Paccard, Miriam
%A Pavón Carrasco, Francisco Javier
%A Cau Ontiveros, M.A.
%A Fantuzzi, L.
%A Martín Hernández, Fátima
%A Palencia Ortas, Alicia
%A Aidona, E.
%A Tema, E.
%A Kondopoulou, D.
%A Mas Florit, C.
%A Ramón Torres, J.
%T Refining geomagnetic field intensity changes in Europe between 200 CE and 1800 CE. New data from the Mediterranean region
%D 2021
%@ 0031-9201
%U https://hdl.handle.net/20.500.14352/4483
%X 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 tobetter 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 ofquality criteria, confirm the presence ofseveral intensity maxima in Europe over the last 2000 years. In particular, the new archeointensities allow tobetter 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.
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