A new method of palaeofield magnitude correction for thermally altered samples and its application to Lower Carboniferous lavas
A new method of palaeofield magnitude correction for thermally altered samples and its application to Lower Carboniferous lavas
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DOI：
10.1111/j.1365-246x.1985.tb05124.x
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发表时间：
1985-03
影响因子：
2.8
通讯作者：
T. Rolph;J. Shaw
中科院分区：
文献类型：
--
作者：
T. Rolph;J. Shaw
本文对苏格兰和德比郡的早石炭世火山岩进行了古地磁场震级分析，对用肖氏法获得的数据作了新的校正。它的应用已经从以前被拒绝的数据中产生了场震级值。对西西里和韦斯特曼岛的现代陶器标本和现代熔岩进行了分析，测定了早石炭世的平均虚偶极矩（VDM，Smith）为2.5 ± 0.4 × 10 ~（22）A·m ~ 2。这仅为目前的VDM的30%。
Some lavas of Early Carboniferous age from Scotland and Derbyshire have been analysed for palaeofield magnitude by the application of a new correction to data obtained by the Shaw method. Its application has yielded field magnitude values from data which had previously been rejected. A modern pottery specimen and recent lavas from Sicily and Westman Island have also been analysed.An average virtual dipole moment (VDM, Smith) of 2.5 ± 0.4 × 1022A m2was determined for the Early Carboniferous. This is only 30 per cent of the present-day VDM.