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Cited by 27 publications
(18 citation statements)
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“…In addition, paleointensity studies from Laurentia (Bono et al., 2019; Thallner et al., 2021) and Baltica (Shcherbakova et al., 2020) suggest a weak sustained field, fundamentally different from younger fields (Kulakov et al., 2019), with minimum paleointensity values similar to those in short‐term intensity drops during polarity transitions. Interpretation of the Ediacaran field as nondipole‐dominated and transitional seems reasonable and is supported by high dispersion of virtual geomagnetic poles (VGPs) (Bono et al., 2019; Halls et al., 2015; Thallner et al., 2021; Veikkolainen & Pesonen, 2014), high reversal frequencies (Bazhenov et al., 2016) as well as the low intensities. However, grouping of VGPs in two distinct clusters could also suggest a field that was at times dominated by the contribution of an equatorial dipole (Abrajevitch & Van der Voo, 2010).…”
Section: Introductionmentioning
confidence: 99%
“…In addition, paleointensity studies from Laurentia (Bono et al., 2019; Thallner et al., 2021) and Baltica (Shcherbakova et al., 2020) suggest a weak sustained field, fundamentally different from younger fields (Kulakov et al., 2019), with minimum paleointensity values similar to those in short‐term intensity drops during polarity transitions. Interpretation of the Ediacaran field as nondipole‐dominated and transitional seems reasonable and is supported by high dispersion of virtual geomagnetic poles (VGPs) (Bono et al., 2019; Halls et al., 2015; Thallner et al., 2021; Veikkolainen & Pesonen, 2014), high reversal frequencies (Bazhenov et al., 2016) as well as the low intensities. However, grouping of VGPs in two distinct clusters could also suggest a field that was at times dominated by the contribution of an equatorial dipole (Abrajevitch & Van der Voo, 2010).…”
Section: Introductionmentioning
confidence: 99%
“…The rates of >26°/Myr (>288 cm/yr) implied if these data are interpreted as resulting from plate motion or true polar wander were considered as dynamically implausible by Halls et al (2015) leading the authors to favor a deviation from axial dipolar behavior as the explanation for disparate Ediacaran directions. Estimates of magnetic paleointensity in these Grenville dikes are anomalously weak (Thallner et al, 2021) as are data from coeval volcanics in Ukraine (Shcherbakova et al, 2019) which could support an anomalous deviation from stable axial dipolar geomagnetic field behavior at the time as interpreted by Halls et al (2015). Regardless of mechanism, the Ediacaran data stand out as anomalous relative to the coherency of the rest of the poles in the compiled record for Laurentia (Fig.…”
Section: Paleogeography Of An Assembled Laurentiamentioning
confidence: 60%
“…The inclusion of LTD treatment is optional with respect to the theory behind the DHT. Recent studies of rocks that were moderately to highly MD (15-28%), obtained very similar palaeointensity estimates from LTD and non-LTD sister specimens (Yamamoto et al, 2007;Lloyd et al, 2021) and other studies successfully use the method without LTD. (Thallner et al, 2021). However, the incorporation of LTD can be important, not only for removing MD-like remanence, but also for the additional information it provides.…”
Section: The Shaw Methodsmentioning
confidence: 99%
“…A large dataset of measurements undertaken on 426 individual specimens was compiled from multiple Shaw-DHT experiments, mostly carried out at the University of Liverpool over the last 3 years. Full multi-method palaeointensities are now published on many of these sample sets (Lloyd et al, 2021;Thallner et al, 2021). The experiments were performed using a wide variety of varying input parameters, including differences in the laboratory TRM bias field, ARM bias field, hold durations, sample positions, oven used and number of measurement steps.…”
Section: Samples and Experimental Procedures Monte Carlo Down-sampling And Testing Linear Parametersmentioning
confidence: 99%
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