High northern geomagnetic field behavior and new constraints on the Gilsá event: Paleomagnetic and 40Ar/39Ar results of ∼0.5-3.1 Ma basalts from Jökuldalur, Iceland
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- 作者：Arne Dø ; ssinga ; b ; ards@space.dtu.dk" class="auth_mail" title="E-mail the corresponding author ; Adrian R. Muxworthyb ; Radchagrit Supakulopasb ; Morten S. Riishuusc ; Conall Mac Niocailld
- 关键词：Gilsá ; event ; paleosecular variation ; paleointensity ; Matuyama ; Iceland ; Ar&ndash ; Ar radiometric dating
- 刊名：Earth and Planetary Science Letters
- 出版年：2016
- 出版时间：15 December 2016
- 年：2016
- 卷：456
- 期：Complete
- 页码：98-111
- 全文大小：4245 K
文摘
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Stable field, high standard full-vector data of 0.5–3.0 Ma rocks from Iceland.
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45 paleodirectional results and 7 Matuyama field strength estimates.
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VGP dispersion values 2–3° lower than previous results from Iceland.
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Paleointensity results support a long-lived hemispheric asymmetry during Matuyama.
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New 40Ar/39Ar results show that the Gilsá normal polarity event does not exist.