GP013:
Radioisotopic and Paleomagnetic Advances of the Short and Long-term Behavior of the Geomagnetic Field





Session ID#: 23625

Session Description:
New paleomagnetic measurements, coupled with radioisotopic dating (e.g. 40Ar/39Ar, U-Pb) of terrestrial and offshore volcanic records, are revolutionizing our understanding of the geodynamo by providing detailed histories of the short-and long-term behavior of the paleomagnetic field. We solicit new contributions of radioisotopically dated geomagnetic records from millennial to Superchrons observations (i.e. AMJs, cryptochrons, polarity transitions, excursions, etc) recovered from lake, deep-sea sediments, loess, sedimentary, archaeomagnetic artifacts and igneous rocks. In addition, we seek theoretical studies, numerical simulations, modelling of the geodynamo from historical back to ~4.0 Ga ages
Primary Convener:  Emilio Herrero-Bervera, University of Hawaii at Manoa, Honolulu, HI, United States
Convener:  Brian R Jicha, University of Wisconsin Madison, Madison, WI, United States
Index Terms:

1513 Geomagnetic excursions [GEOMAGNETISM AND PALEOMAGNETISM]
1520 Magnetostratigraphy [GEOMAGNETISM AND PALEOMAGNETISM]
1535 Reversals: process, timescale, magnetostratigraphy [GEOMAGNETISM AND PALEOMAGNETISM]
1560 Time variations: secular and longer [GEOMAGNETISM AND PALEOMAGNETISM]

Abstracts Submitted to this Session:

Joseph Biasi, California Institute of Technology, Pasadena, CA, United States and Joseph L Kirschvink, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States
James E T Channell, University of Florida, Gainesville, FL, United States
Emilio Herrero-Bervera, University of Hawaii at Manoa, Honolulu, HI, United States and Brian Jicha, University of Wisconsin Madison, Department of Geoscience, Madison, WI, United States
Tatiana Savranskaia1, Jean-Pierre Valet1, Franck C Bassinot2, Laure Meynadier1, Quentin Simon1,3, Didier L Bourles3, Nicolas Thouveny3, Anojh Thevarasan1, Anouk Villedieu1,2, Sandrine Choy1,3 and Laetitia Gacem1,3, (1)Institut de Physique du Globe de Paris, Paris, France, (2)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette, France, (3)CEREGE, UM34, Aix Marseille Université, CNRS, IRD, Aix En Provence, France
Quentin Simon1,2, Nicolas Thouveny1, Didier L Bourlès3, Jean-Pierre Valet2, Franck C Bassinot4, Tatiana Savranskaia2, Adrien Duvivier1,2, Sandrine Choy1,2, Laetitia Gacem2,5 and Anouk Villedieu2,4, (1)CEREGE, UM34, Aix Marseille Université, CNRS, IRD, Aix en Provence, France, (2)Institut de Physique du Globe de Paris, Paris, France, (3)CEREGE, UM34, Aix Marseille Université, CNRS, IRD, Aix-en-Provence, France, (4)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette, France, (5)CEREGE, UM34, Aix Marseille Université, CNRS, IRD, Aix En Provence, France
Vladimir Pavlov1, Andrey Shatsillo1, Nikolay Kouznetsov2 and Elena Gazieva3, (1)Institute of Physics of the Earth RAS, Moscow, Russia, (2)Geological Institute RAS, Moscow, Russia, (3)Institute of Physics of the Earth RAS, Main magnetic field, Moscow, Russia
Carlo E Laj, Ecole Normale Supérieure Paris, Paris, France and Catherine Kissel, LSCE Laboratoire des Sciences du Climat et de l'Environnement/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-Sur-Yvette Cedex, France
Jean-Pierre Valet1, Tatiana Savranskaia1, Thevarasan Anojh1, Laure Meynadier2, Nicolas Thouveny3, Laetitia Gacem4, ASTER-Team L2NC5, Franck C Bassinot6 and Quentin Simon7, (1)Institut de Physique du Globe de Paris, Paris, France, (2)Institut de Physique du Globe, Paris, France, (3)CEREGE, Aix-en-Provence Cedex, France, (4)CEREGE, UM34, Aix Marseille Université, CNRS, IRD, Aix En Provence, France, (5)CEREGE, UM34, Aix Marseille Université, CNRS, IRD, Aix-en-Provence Cedex, France, (6)CEA Saclay DSM / LSCE, Gif sur Yvette, France, (7)CEREGE UM34, Aix en province, France
Edouard Guy Henri Philippe, Institut de Physique du Globe de Paris, Paris, France and Jean-Pierre Valet, Institut Physique Globe Paris, Paris, France