TY - JOUR

T1 - New archaeomagnetic secular variation data from Central Europe. I: directions

AU - Schnepp, Elisabeth

AU - Thallner, Daniele

AU - Arneitz, Patrick

AU - Mauritsch, Hermann Johann

AU - Scholger, Robert

AU - Rolf, Christian

AU - Leonhardt, Roman

PY - 2019/10/30

Y1 - 2019/10/30

N2 - Archaeomagnetic directions of 141 archaeological structures have been studied from 21 sites in Austria, 31 sites in Germany and one site in Switzerland. Characteristic remanent magnetization directions obtained from alternating field and thermal demagnetizations provided 82 and 78 new or updated (12 and 10 per cent) directions of Austria and Germany, respectively. Nine of the directions are not reliable for certain reasons (e.g. displacement) while three of the features are not well dated. Apart from this some updated age information for the published databases is provided. Rock magnetic experiments revealed magnetite as main magnetic carrier of the remanences. The new data agree well with existing secular variation reference curves. The extended data set covers now the past 3500 yr and a lot of progress were made to cover times BC with data. Here enhanced secular variation is observed manifested in declinations with values up to 70°. The new data will allow for recalculation of archaeomagnetic calibration curves for Central Europe from mid Bronze Age until today.

AB - Archaeomagnetic directions of 141 archaeological structures have been studied from 21 sites in Austria, 31 sites in Germany and one site in Switzerland. Characteristic remanent magnetization directions obtained from alternating field and thermal demagnetizations provided 82 and 78 new or updated (12 and 10 per cent) directions of Austria and Germany, respectively. Nine of the directions are not reliable for certain reasons (e.g. displacement) while three of the features are not well dated. Apart from this some updated age information for the published databases is provided. Rock magnetic experiments revealed magnetite as main magnetic carrier of the remanences. The new data agree well with existing secular variation reference curves. The extended data set covers now the past 3500 yr and a lot of progress were made to cover times BC with data. Here enhanced secular variation is observed manifested in declinations with values up to 70°. The new data will allow for recalculation of archaeomagnetic calibration curves for Central Europe from mid Bronze Age until today.

KW - Archaeomagnetism

KW - Palaeomagnetic secular variation

KW - Europe

UR - http://www.scopus.com/inward/record.url?scp=85086046250&partnerID=8YFLogxK

U2 - 10.1093/gji/ggz492

DO - 10.1093/gji/ggz492

M3 - Article

VL - 220.2020

SP - 1023

EP - 1044

JO - Geophysical journal international

JF - Geophysical journal international

SN - 0956-540X

IS - 2

M1 - ggz492

ER -