[Latinmag] Fw: Tomorrow's MagNetZ

Mar Nov 24 12:55:25 -03 2020

   ----- Mensaje reenviado ----- De: Paterson, Greig <greig.paterson en liverpool.ac.uk>Enviado: martes, 24 de noviembre de 2020 12:46:48 p. m. GMT-3Asunto: Tomorrow's MagNetZ

Hi all,

Here are the details for this Wednesday's MagNetZ,Evdokia Tema will be talking about "Archaeomagnetic research in Italy: Recent advances and future perspectives" (Abstract below).

The meeting room will open at ~15:30 GMT (please check your local time) and the presentation will start at 15:40.Please try and use your real name as this makes it easier to keep the meeting safe. Your mic will initially be muted and we ask that you keep it muted during the presentation. If you find the connection is poor and slow, turning off your camera may help.

The seminars are recorded, so continued participation in a seminar after recording beginnings constitutes agreement for the recording to be publicly disseminated. Some, but not all attendees may be visible in the recording. If you ask an audio question, you will be visible. So, we recommend muting your microphone and turning off your camera if you do not want to be visible.

Topic: MagNetZ

Time: Nov 25, 2020 15:30 London

Join Zoom Meeting

https://liverpool-ac-uk.zoom.us/j/98547646331?pwd=RDY2OWNvbG44dG1KSGdlQnBENmRBQT09

Meeting ID: 985 4764 6331

Passcode: cS78mP=S

Please note that if you do not wish to receive these updates please contact Greig Paterson(greig.paterson en liverpool.ac.uk) to be removed from the mailing list.

All the best 

Greig & Anita

Abstract:

Baked clay archaeological material and volcanic rocks offer precious information about the Secular Variation of the Earth’s magnetic field in the past thanks to their strong and stable Thermal Remanent Magnetization (TRM) acquired during their cooling in the presence of the ancient geomagnetic field. Italy is a country with great potential for archaeomagnetic research due to its long and rich cultural heritage and to the important volcanic activity of the two principal active Italian volcanoes, Vesuvius and Etna. Recently, an updated compilation of Italian archaeomagnetic data from both archaeological material and volcanic rocks has been compiled and used for the calculation of directional and intensity reference secular variation (SV) curves. The quality of the data was carefully evaluated, with particular attention on the reliability of the dating of the volcanic rocks and on the quality of the archaeointensity determinations. Revising the reliability of the historical dating of the available volcanic data, it results that only 57% of the volcanic palaeomagnetic records come from indisputably dated eruptions while for the rest of the data, the traditional age of the eruption has been subject of debate or re-evaluated based on geological evidence and/or archaeomagnetic dating. New SV curves for both direction and intensity are now available for Italy, calculated using Bayesian statistics and covering the last three millennia. Thanks to the privileged geographical position of the Italian peninsula, situated almost in the center of the Mediterranean, the Italian SV curves can be used to analyze the evolution of the geomagnetic field in central Europe and for archaeomagnetic dating applications not only in Italy but also in nearby countries where no local SV curves are available so far. Definitely, more well-dated reference data are still necessary to better define the geomagnetic field path for the BC periods while future attention should be also focused on the archaeointensity data that are still scarce.

------------ próxima parte ------------
Se ha borrado un adjunto en formato HTML...
URL: <http://lists.gl.fcen.uba.ar/pipermail/latinmag/attachments/20201124/d26ec0e6/attachment.html>
------------ próxima parte ------------
A non-text attachment was scrubbed...
Name: MagNetS_2020_11_25.ics
Type: text/calendar
Size: 1223 bytes
Desc: no disponible
URL: <http://lists.gl.fcen.uba.ar/pipermail/latinmag/attachments/20201124/d26ec0e6/attachment.ics>