Geomagnetic intensity measurements from Byzantine vases in the period between 300 and 1650yr. A.D.

Παπαμαρινόπουλος, Σ.

doi:10.5636/jgg.39.261

Cited by 12 publications

(13 citation statements)

References 8 publications

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“…For strong anisotropic specimens, this approach is not adequate (unless of course the ancient field was parallel to one of the principal axes of the TRM tensor). Aitken et al [1984, 1988a, 1988b, 1989a, 1989b, 1991; see also Wei et al , 1987; Papamarinopoulos , 1987] therefore determined the TRM anisotropy tensor and corrected their intensity values whenever the angle between the TRM and the laboratory field directions was found to be large. Similarly, Gallet et al [2006] [following Le Goff and Gallet , 2004] adjusted the direction of the laboratory field to always produce a TRM almost parallel to the NRM.…”

Section: Diversity Of the Experimental Methodsmentioning

confidence: 99%

ArcheoInt: An upgraded compilation of geomagnetic field intensity data for the past ten millennia and its application to the recovery of the past dipole moment

Genevey

Gallet

Constable

et al. 2008

Geochem Geophys Geosyst

188

251

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[1] This paper presents a compilation of intensity data covering the past 10 millennia (ArcheoInt). This compilation, which upgrades the one of Korte et al. (2005), contains 3648 data and incorporates additional intensity and directional data sets. A large majority of these data ($87%) were acquired on archeological artifacts, and the remaining $13% correspond to data obtained from volcanic products. The present compilation also includes important metadata for evaluating the intensity data quality and providing a foundation to guide improved selection criteria. We show that $50% of the data set fulfill reasonable reliability standards which take into account the anisotropic nature of most studied objects (potsherds), the stability of the magnetization, and the data dispersion. The temporal and geographical distributions of this sub-data set are similar to those of the main data set, with $72% of the data dated from the past three millennia and $76% obtained from western Eurasia. Approximately half of the selected intensity data are associated with at least an inclination value. To constrain the axial and full dipole evolution over the past three millennia requires that we avoid any overrepresentation of the western Eurasian data. We introduce a first-order regional weighting scheme based on the definition of eight widely distributed regions of 30°width within which the selected data are numerous enough. The regional curves of virtual axial dipole moments (VADM) and of mixed VADM-virtual dipole moments (VDM) averaged over sliding windows of 200 years and 500 years testify for strong contributions from either equatorial dipole or nondipole components. The computation of global VADM and mixed VADM/VDM variation curves, assuming an equal weight for each region, yields a dipole evolution marked by a distinct minimum around 0 B.C./A.D. followed by a maximum around the third-fourth century A.D. A second minimum is present around the eighth century A.D. This variation pattern is compatible with the one deduced from earlier, more sophisticated analysis based on the inversion of both intensity and directional data. In particular, there is a good agreement among all VADMs and dipole moment estimates over the historical period, which further strengthens the validity of our weighting scheme.

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Section: Diversity Of the Experimental Methodsmentioning

confidence: 99%

ArcheoInt: An upgraded compilation of geomagnetic field intensity data for the past ten millennia and its application to the recovery of the past dipole moment

Genevey

Gallet

Constable

et al. 2008

Geochem Geophys Geosyst

188

251

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“…Ukrainian and Moldovan data along with data from the central part of European Russia were also compiled by Burlatskaya et al [1986b] with some additional data taken from Rusakov and Zagniy [1973b]. In the Southern Europe file we have combined data from Greece [ Liritzis and Thomas , 1980; Thomas , 1983; Walton , 1984, 1990; Papamarinopoulos , 1987; Walton and Balhatchet , 1988; Aitken et al , 1989a, 1989b, 1991; Kovacheva et al , 2000; Spatharas et al , 2000; Nachasova and Burakov , 2002], Eastern Turkey [ Nachasova and Burakov , 2002], Italy [ Shaw , 1974; Tanguy , 1975; Evans , 1986, 1991; Rolph and Shaw , 1986; Hedley and Wagner , 1991], and former Yugoslavia compiled by Burlatskaya et al [1986b]. Scandinavian intensity data come from Finland [ Aitken et al , 1991; Pesonen et al , 1995] and a few from Norway and Denmark [ Gram‐Jensen et al , 2000].…”

Section: Detailed Data Description By Regionmentioning

confidence: 99%

“…Data from France [Thellier and Thellier, 1959;Shaw, 1979;Veitch et al, 1984;Hedley and Wagner, 1991;Chauvin et al, 2000; and Spain [Kovacheva et al, 1995; have been grouped in one file together with few data from Switzerland [Thellier and Thellier, 1959;Veitch et al, 1984;Hedley and Wagner, 1991] and Germany [Hedley and Wagner, 1991]. British intensity data have been published by Weaver [1966], Shaw [1974], Walton [1977], Games and Baker [1981], Games and Davey [1985], Boyd [1986] [Liritzis and Thomas, 1980;Thomas, 1983;Walton, 1984Walton, , 1990Papamarinopoulos, 1987;Walton and Balhatchet, 1988;Aitken et al, 1989aAitken et al, , 1989bAitken et al, , 1991Kovacheva et al, 2000;Spatharas et al, 2000;, Eastern Turkey , Italy [Shaw, 1974;Tanguy, 1975;Evans, 1986Evans, , 1991Rolph and Shaw, 1986;Hedley and Wagner, 1991], and former Yugoslavia compiled by Burlatskaya et al [1986b]. Scandinavian intensity data come from Finland [Aitken et al, 1991;Pesonen et al, 1995]…”

Section: Europementioning

confidence: 99%

Continuous geomagnetic field models for the past 7 millennia: 1. A new global data compilation

Korte

Genevey

Constable

et al. 2005

Geochem Geophys Geosyst

138

158

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[1] A global data set of archeomagnetic and paleomagnetic data covering the past 7000 years has been compiled. It consists of 16,085 results of inclination, 13,080 of declination, and 3188 of intensity for the time span 5000 BC to 1950 AD. Declination and inclination data come partly from existing databases and partly from original literature. A new global compilation of intensity data for the millennial scale is included. Data and dating uncertainties are discussed as we attempted to obtain an internally coherent data set. The global distribution of the data is very inhomogeneous in both time and space. All the data are compared to predictions from the previous 3000 year global model, CALS3K.1. This collection of data will be useful for global secular variation studies and geomagnetic field modeling, although southern hemisphere data are still underrepresented. In particular, we will use it in a further study to update and extend the existing global model, CALS3K.1. The huge increase in data compared to the previous compilation will result in significant changes from current models. As we might have missed some suitable data, we encourage the reader to notify us about any data that have not been included yet and might fit in, as improving our global millennial scale models remains our aim for the future. The data files described in this paper are available from the EarthRef Digital Archive (ERDA) at http://earthref.org/cgi-bin/ erda.cgi?n=331.

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“…In Greece, systematic archaeomagnetic investigations started at the late 1970s (Walton 1979; Liritzis & Thomas 1980; Thomas 1981; Aitken et al . 1989; Downey & Tarling 1984; Papamarinopoulos 1987; Tarling & Downey 1989) although some early archaeomagnetic results were published by Belshé et al . (1963).…”

Section: Introductionmentioning

confidence: 99%

“…Nowadays, the Bulgarian database is the richest in Europe, covering the last 8000 years. In Greece, systematic archaeomagnetic investigations started at the late 1970s (Walton 1979;Liritzis & Thomas 1980;Thomas 1981;Aitken et al 1989;Downey & Tarling 1984;Papamarinopoulos 1987;Tarling & Downey 1989) although some early archaeomagnetic results were published by Belshé et al (1963). In contrast with the general situation in Europe, where the number of directional archaeomagnetic data is by far larger than the palaeointensity data, in Greece there is an abundance of palaeointensity determinations.…”

Section: Introductionmentioning

confidence: 99%

Secular variation of the Earth's magnetic field in the Balkan region during the last eight millennia based on archaeomagnetic data

Tema¹,

Kondopoulou²

2011

Geophysical Journal International

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S U M M A R YThe first archaeomagnetic secular variation (SV) curves for the whole Southern Balkan Peninsula are presented. These are based on all data within a 700 km circle centred at Thessaloniki (40.60 o N, 23.00 o E). This data set consists of 325 directional and 625 intensity data mainly from Greece, Bulgaria, Serbia and southern Hungary. Some data from southern Italy are also included. The sliding moving window technique, was used to calculate a continuous SV curve for intensity while the directional SV curves were calculated using the bivariate extension of the Fisher statistics. These curves are well constrained and clearly show the main features of the geomagnetic field variation in this region during the last eight millennia. Comparisons with the predictions of the SCHA.DIF.3K and SCHA.DIF.8K regional and the CALS7K.2 and ARCH3K.1 global geomagnetic field models show a good agreement for the last 3000 years but differences for older times. The Balkan SV curves identify several rapid changes of the geomagnetic field in eastern Europe and can be used as reference curves for archaeomagnetic dating in the Balkan Peninsula.

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Geomagnetic intensity measurements from Byzantine vases in the period between 300 and 1650yr. A.D.

Cited by 12 publications

References 8 publications

ArcheoInt: An upgraded compilation of geomagnetic field intensity data for the past ten millennia and its application to the recovery of the past dipole moment

ArcheoInt: An upgraded compilation of geomagnetic field intensity data for the past ten millennia and its application to the recovery of the past dipole moment

Continuous geomagnetic field models for the past 7 millennia: 1. A new global data compilation

Secular variation of the Earth's magnetic field in the Balkan region during the last eight millennia based on archaeomagnetic data

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