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Showing 1 to 6 of 6 for “"palaeointensity"”.
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MAGNETIC DATING OF VESUVIAN LAVAS
… 79 AD. This involved both palaeodirection and palaeointensity investigations of samples from sites on the W, S and SE slopes of the volcano. Thermal demagnetization of 3 component IRMs, susceptibility measurements and coercivity analyses have been carried out on one pilot specimen per site in …
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Self-Reversal of Remanent Magnetisation of Basalts - Origin, Mechanisms and Consequences
… directional investigations and especially for palaeointensity determinations, a profound knowledge about the stability, magnetomineralogical character and the domain state of the carriers of remanence is imperative. The emphasis of the present work was placed on the investigation of basalts …
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Direction and intensity of Earth's magnetic field at the Permo-Triassic boundary
… studies of palaeodirectional and absolute palaeointensity patterns of geomagnetic reversals are scarce and are restricted to the Cenozoic so far. In order to verify or reject concepts developed on the basis of this dataset, reversal records which occurred in the more distant geological past …
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Assessing Holocene and late Pleistocene geomagnetic dipole field variability
… boundary. Based on palaeomagnetic directions and palaeointensity data, the two tilt maxima at 2650 and 1200 years BP are tentatively associated with the presence of high intensity magnetic flux beneath Europe. The dipole tilt reconstruction is highly correlated to millennial scale variations in …
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Glaciomarine sedimentation at the continental margin of Prydz Bay, East Antarctica : implications on palaeoenvironmental changes during the Quaternary
… were constructed based on palaeomagnetic and palaeointensity measurements, diatom stratigraphy and radiocarbon dating. Sea-bed surface sediments in the investigation area show distinct variations in terms of their clay minerals and heavy-mineral assemblages. Considerable differences in the …
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An appraisal of a new method for the full-vector reconstruction of the Earth’s magnetic field - applied to volcanic rocks from Mexico
Das Magnetfeld der Erde wird durch Konvektionsströmungen im elektrisch leitfähigen, flüssigen eisenreichen äußeren Erdkern erzeugt. Eine drastische Ausprägung der dynamischen Prozesse im äußeren Erdkern sind sowohl Polaritätswechsel über geologische Zeiträume, als auch geomagnetische …