A Quaternary geomagnetic instability time scale
BS Singer - Quaternary Geochronology, 2014 - Elsevier
Reversals and excursions of Earth's geomagnetic field create marker horizons that are
readily detected in sedimentary and volcanic rocks worldwide. An accurate and precise …
readily detected in sedimentary and volcanic rocks worldwide. An accurate and precise …
Possible links between long-term geomagnetic variations and whole-mantle convection processes
The Earth's internal magnetic field varies on timescales of months to billions of years. The
field is generated by convection in the liquid outer core, which in turn is influenced by the …
field is generated by convection in the liquid outer core, which in turn is influenced by the …
Morphology of seismically slow lower-mantle structures
Large low shear velocity provinces (LLSVPs), whose origin and dynamic implication remain
enigmatic, dominate the lowermost mantle. For decades, seismologists have created …
enigmatic, dominate the lowermost mantle. For decades, seismologists have created …
Longitudinal structure of Earth's magnetic field controlled by lower mantle heat flow
Thermal interactions between Earth's core and mantle provide the power that maintains the
geomagnetic field. However, the effect of these interactions and, in particular, the …
geomagnetic field. However, the effect of these interactions and, in particular, the …
A tectonic-rules-based mantle reference frame since 1 billion years ago–implications for supercontinent cycles and plate–mantle system evolution
Understanding the long-term evolution of Earth's plate–mantle system is reliant on absolute
plate motion models in a mantle reference frame, but such models are both difficult to …
plate motion models in a mantle reference frame, but such models are both difficult to …
Multiple states in turbulent large-aspect-ratio thermal convection: what determines the number of convection rolls?
Wall-bounded turbulent flows can take different statistically stationary turbulent states, with
different transport properties, even for the very same values of the control parameters. What …
different transport properties, even for the very same values of the control parameters. What …
Ultra-low palaeointensities from East European Craton, Ukraine support a globally anomalous palaeomagnetic field in the Ediacaran
VV Shcherbakova, VG Bakhmutov… - Geophysical Journal …, 2020 - academic.oup.com
The time-averaged geomagnetic field is generally purported to be uniformitarian across
Earth history—close to a geocentric axial dipole, with average strength within one order of …
Earth history—close to a geocentric axial dipole, with average strength within one order of …
High geomagnetic field intensity recorded by anorthosite xenoliths requires a strongly powered late Mesoproterozoic geodynamo
Obtaining estimates of Earth's magnetic field strength in deep time is complicated by
nonideal rock magnetic behavior in many igneous rocks. In this study, we target anorthosite …
nonideal rock magnetic behavior in many igneous rocks. In this study, we target anorthosite …
[HTML][HTML] Subduction flux modulates the geomagnetic polarity reversal rate
Ascertaining the cause of variations in the frequency of geomagnetic polarity reversals
through the Phanerozoic has remained a primary research question straddling …
through the Phanerozoic has remained a primary research question straddling …
Analysis of an Updated Paleointensity Database (QPI‐PINT) for 65–200 Ma: Implications for the Long‐Term History of Dipole Moment Through the Mesozoic
The global paleointensity database for 65–200 Ma was analyzed using a modified suite of
paleointensity quality criteria (QPI) such that the likely reliability of measurements is …
paleointensity quality criteria (QPI) such that the likely reliability of measurements is …