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Pangea B:an artifact of incorrect paleomagnetic assumptions?
paleomagnetism trias permian pangea inclination error
2015/9/28
The detailed plate reconstruction within Pangea megacontinent has been an ongoing debate among the paleomagnetic community for decades. The Pangea B hypothesis, implying a 3500 km Triassic dextral meg...
Paleomagnetism of the Liassic member of the Zarzaïtine Formation (stable Saharan craton,Illizi basin,Algeria)
Africa paleomagnetic pole liassic apparent polar wander path sahara craton
2015/9/28
A paleomagnetic study was carried out in the carbonates and marls of the Liassic member of the Zarzaïtine Formation of the Illizi basin (SE Algeria) deposited in a continental environment. Two ma...
Forecasting geomagnetic activity three hours in advance for ionospheric applications
Geomagnetic activity ionospheric disturbance ferecasting
2015/9/28
An attempt at forecasting the magnetic activity index three hours in advance is presented. This approach is based on a suitable treatment of time-weighted accumulations of the three-hourly magnetic in...
Local time behaviour of low frequency geomagnetic field fluctuation power at low latitude
Geomagnetic pulsation MHD waves and instabilities
2015/9/28
In this paper we present a statistical study of the local time behaviour of low frequency (0.7-4.0 mHz) geomagnetic field fluctuation power at a low latitude station (corrected geomagnetic latitude 36...
Geomagnetic storms and the occurrence of phase slips in the reception of GPS signals
s phase slips geomagnetic disturbances total electron content
2015/9/25
We have investigated a dependence of the relative density of GPS phase slips on the geomagnetic disturbance level. The study is based on using Internet-available selected data from the global GPS netw...
Improved techniques in data analysis and interpretation of potential fields:examples of application in volcanic and seismically active areas
gravimetry potential fields geomagnetism signal enhancement techniques
2015/9/25
Geopotential data may be interpreted by many different techniques, depending on the nature of the mathematical equations correlating specific unknown ground parameters to the measured data set. The in...
Time intermittency and spectral features of the geomagnetic field
nonlinear processes in geophysics geomagneticfield Earth's core fluid dynamics turbulence
2015/9/11
In the field of geomagnetism a number of studies have been devoted to the investigation of turbulence and intermittency in the outer core fluid motions. Here, in order to obtain information on such ph...
Aeromagnetic anomaly images of Vulcano and Southern Lipari Islands (Aeolian Archipelago,Italy)
aeromagnetic data magnetic anomalies geomagnetism Vulcano
2015/9/11
Newly acquired high-resolution, low-altitude aeromagnetic data over Vulcano Island and Southwestern Lipari in the Southern Tyrrhenian Sea resolve the major volcanic features in the area associated wit...
Multidisciplinary investigations on the Roman aqueduct of Grumentum (Basilicata,Southern Italy)
geoarchaeology magnetic prospecting HVSR investigation seismogenic fault
2015/9/11
The Romans built the ancient town of Grumentum during the 3rd century B.C. in the southern part of the Agri high Valley (Basilicata Region, Southern Italy) near the confluence of the Sciaura stream in...
An alternative 3D inversion method for magnetic anomalies with depth resolution
inversion magnetic field weighting function dipolar approximation depth resolution
2015/9/8
This paper presents a new method to invert magnetic anomaly data in a variety of non-complex contexts when a priori information about the sources is not available. The region containing magnetic sourc...
Analysis of a Permo-Triassic polarity transition in different absolute reconstructions of Pangaea,considering a model with features of the present Earth magnetic field
Permo-Triassic Pangaea absolute reconstruction Earth magnetic field polarity transition
2015/9/2
The main objective of this paper is to show that the distribution of transitional palaeomagnetic data recorded at 250 Ma are in agreement with simulated data that depend on the sampling site, using a ...
Fourteen years of geomagnetic daily variation at Mario Zucchelli Station (Antarctica)
Geomagnetic daily variation polar areas
2015/9/2
During the 1986-87 austral summer a geomagnetic observatory was installed at the Italian Antarctic Base Mario Zucchelli Station. In the first three years continuous time variation monitoring and abso...
Low frequency geomagnetic field fluctuations at cap and low latitude during October 29-31,2003
magnetospheric ULF waves sun-earth interaction polar cap
2015/9/2
On October-November 2003 complex interplanetary structures, originated by a series of solar eruptions, hit the Earth, triggering violent Sun-Earth connection events. In this paper we analyze the low f...
Integrated inversion of ground deformation and magnetic data at Etna volcano using a genetic algorithm technique
ground deformation magnetic anomalies inverse modelling genetic algorithms Mt. Etna
2015/9/2
Geodetic and magnetic investigations have been playing an increasingly important role in studies on Mt. Etna eruptive processes. During ascent, magma interacts with surrounding rocks and fluids, and i...
Stochastic interpretation of magnetotelluric data,comparison of methods
magnetotelluric method inverse problem controlled random search Markov chain Monte Carlo neighbourhood algorithm
2015/9/2
Global optimization and stochastic approaches to the interpretation of measured data have recently gained particular attraction as tools for directed search for and/or verification of characteristic s...