The HISTMAG database: combining historical, archaeomagnetic and volcanic data

Arneitz, Patrick; Leonhardt, Roman; Schnepp, Elisabeth; Heilig, B.; Mayrhofer, Franziska; Kovács, Péter; Hejda, Pavel; Valach, Fridrich; Vadasz, G.; Hammerl, Christa; Egli, Ramón; Fabian, Karl; Kompein, Niko

doi:10.1093/gji/ggx245

Cited by 38 publications

(26 citation statements)

References 35 publications

(90 reference statements)

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“…Intensive efforts have been made to compile all available paleomagnetic, archeomagnetic, and volcanic data on different timescales. The most recent database, HISTMAG, combines the archeomagnetic and volcanic records from the past 50 ka with historical data covering the past 500 years (Arneitz et al, ). The GEOMAGIA50 database (Brown et al, ; Donadini et al, ; Korhonen et al, ) comprises data from archaeological and igneous sources with ages less than 50 ka.…”

Section: Introductionmentioning

confidence: 99%

Global and Regional Assessments of Paleosecular Variation Activity Over the Past 100 ka

Panovska

Constable

Brown

2018

Geochem Geophys Geosyst

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We present a global compilation of paleomagnetic data spanning the past 100 ka. Sediment data comprise 61,687 declinations, 70,936 inclinations, and 69,596 relative paleointensities. Many sites are located in the northern Atlantic and western Pacific, with approximately twice as many data from the Northern Hemisphere as from the Southern Hemisphere. The 14,954 volcanic and archeomagnetic data are sparse, especially in the Southern Hemisphere. Directional and intensity information are aggregated under the paleosecular variation (PSV) index to assess occurrence of excursions over the past 100 ka. The Laschamp excursion (∼41 ka) is clearly defined across globally distributed sediment records with an average duration of 1,300 years. Regional stacks obtained using bootstrap resampling show a more pronounced Laschamp excursion in the Northern Hemisphere than in the Southern, and in the Atlantic Hemisphere compared with the Pacific. No anomalous indices occurred around the Mono Lake excursion or other periods in the bootstrap curves. This may result from low sedimentation rates, discrepancies in age scales, large age errors, and/or the lack of global character of any transitional events. These data and associated new uncertainty estimates for the sediment records provide a good foundation for global, time‐dependent, spherical harmonic field modeling for the past 100 ka.

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Section: Introductionmentioning

confidence: 99%

Global and Regional Assessments of Paleosecular Variation Activity Over the Past 100 ka

Panovska

Constable

Brown

2018

Geochem Geophys Geosyst

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“…The Holocene sediment data consist of ∼20,000 entries on core depth and ∼3000 stacked data. Both sediment and archaeomagnetic sections of the database are periodically updated when new data are published.The HISTMAG database(Arneitz et al, 2017) combines historical observations of the past ≈500 years with archaeomagnetic and volcanic data of the past 50 kyr. It was developed based on two existing databases, which have both been updated with additionally compiled data.…”

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confidence: 99%

“…• HISTMAG: http://www.conrad-observatory.at/zamg/index.php/dataen/histmag-database Database combining historical, archaeomagnetic, and volcanic data (Arneitz et al, 2017). Registration is required to use the web interface.…”

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confidence: 99%

Refining Holocene geochronologies using palaeomagnetic records

Korte

Brown

Gunnarson

et al. 2019

Quaternary Geochronology

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The aperiodic nature of geomagnetic field variations, both in intensity and direction, can aid in dating archaeological artefacts, volcanic rocks, and sediment records that carry a palaeomagnetic signal. The success of palaeomagnetic dating relies upon our knowledge of past field variations at specific locations. Regional archaeo-and palaeomagnetic reference curves and predictions from global geomagnetic field models provide our best description of field variations through the Holocene. State-of-the-art palaeomagnetic laboratory practices and accurate independent age controls are prerequisites for deriving reliable reference curves and models from archaeological, volcanic, and sedimentary palaeomagnetic data. In this review paper we give an overview of these prerequisites and the available reference curves and models, discuss techniques for palaeomagnetic dating, and outline its limitations. In particular, palaeomagnetic dating on its own cannot give unique results, but rather serves to refine or confirm ages obtained by other methods. Owing

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“…First database efforts have been merged into currently maintained versions, which include a wealth of relevant metadata. They are the comprehensive Magnetics Information Consortium (MagIC*) archive and database, which accommodates all kinds of paleomagnetic and rock magnetic results down to experimental level and on all age scales (Tauxe et al, ); the PINT* paleointensity database, which aims at compiling all published palaeointensity data >50 ka (Biggin et al, ); the PALEOMAGIA* database of Precambrian paleomagnetic data (Veikkolainen et al, ); the latest version of the GEOMAGIA50* database includes archeomagnetic, volcanic, and sediment data of the past 50 Kyr (Brown, Donadini, Korte, et al, ; Brown, Donadini, Frank, et al, ); and the HISTMAG* database, which combines archeomagnetic and volcanic data with historical observations from the past 500 years (Arneitz et al, ). …”

Section: Geomagnetism Today: a Short Tourmentioning

confidence: 99%

Geomagnetism: From Alexander von Humboldt to Current Challenges

Korte

Mandea

2019

Geochem Geophys Geosyst

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The Earth's magnetic field shields our habitat against potentially harmful charged particles from outer space. Moreover, it is an important source of information about Earth's deep interior and geological history, both inaccessible to direct observations. Geomagnetism, the study of all aspects of the Earth's magneticfield, formed as a field of natural sciences in the early nineteenth century, largely under the influence of two prominent polymaths, Alexander von Humboldt and Carl Friedrich Gauss. On the occasion of the AGU 2019 centennial and Alexander von Humboldt's 250th anniversary, we link Humboldt's activities in geomagnetism with modern research in this domain and its challenges. Based on magnetic field observations during his scientific journeys, Alexander von Humboldt determined the increase of magnetic intensity with distance from the equator. He initiated coordinated observations across the globe and thus laid the foundation for international data exchange and collaboration. Observation is a prerequisite to a better understanding of the Earth's magnetic field with its various sources from the Earth's core, lithosphere, and electrical current systems outside the Earth, with a multitude of applications from navigation, exploration, natural hazard assessment, and study of Earth's evolution. A full understanding of the physical processes underlying the various geomagnetic field sources is mandatory to tackle the challenge of forecasting the future geomagnetic field evolution and to take advantage of the information that the geomagnetic field can provide about the Earth's history, geological and tectonic conditions and processes, and the near‐Earth's space environment.

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The HISTMAG database: combining historical, archaeomagnetic and volcanic data

Cited by 38 publications

References 35 publications

Global and Regional Assessments of Paleosecular Variation Activity Over the Past 100 ka

Global and Regional Assessments of Paleosecular Variation Activity Over the Past 100 ka

Refining Holocene geochronologies using palaeomagnetic records

Geomagnetism: From Alexander von Humboldt to Current Challenges

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