Labor für Erdmagnetismus in Raum und Zeit
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Dieses Labor befasst sich mit der magnetostratigraphischen Altersdatierung von Paläoklimaarchiven und der Rekonstruktion erdmagnetischer Variationen in der geologischen Vergangenheit, sowie mit der Analyse magnetischer Minerale.
Dazu werden die Magnetisierung von Sedimenten nach Betrag und Richtung bestimmt sowie die magnetischen Minerale nach ihren physikalischen Eigenschaften wie Koerzitivität, Curie-Temperatur, Korngröße und Konzentration, der chemischen Zusammensetzung und dem Erhaltungszustand charakterisiert.
Ausgewählte Infrastrukturen
Fachspezifische Schlagworte
- Paleogeoscience
- Demagnetization
- Remanent Magnetization
- Magnetic Susceptibility
- Mass-Specific Magnetic Susceptibility
- Coercivity
- Curie Temperature Analysis
- Magnetic Hysteresis Analysis
- Magnetization
- Magnetic Extraction
- Geomagnetismus und Paläomagnetismus
- Geophysik
Kategorien
Instrumentierung
Laboratory instrumentation
Instrumente
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GFZ Split-Core Logger
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Demagnetizer
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Magnetic Susceptibility Bridge
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Magnetic Susceptibility Sensor
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Magnetizer
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Variable Field Translation Balance
The variable field translation balance (VFTB) is an instrument for measuring isothermal magnetizations in variable fields (e.g., hysteresis loops) as well as the temperature dependence of the associated magnetic parameters. It is specifically designed to measure the weak magnetizations commonly encountered in rock magnetism. (Source: https://doi.org/10.1007/978-1-4020-4423-6_312)
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Magnetometer
Magnetometers measure the Earth's magnetic field intensity. (Source: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 16.3. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects pision, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords)
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Spectrophotometer
Spectrophotometers are photometers that measure the intensity of radiation as a function of frequency (or wavelength) of the radiation; radiation enters the meter through a slit and is dispersed by means of a prism. (Source: Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 16.3. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects pision, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords)
Links
Datenpublikation
Schlüsselpublikation
- Nowaczyk, N.R. (2021) Redeposition experiments with natural sediments from the SE Black Sea in magnetic fields between about 2 and 114 µT. Geophysical Journal International, 224, 1, 271–289.
- Nowaczyk, N.R., et al. (2012) Dynamics of the Laschamp geomagnetic excursion from Black Sea sediments. Earth and Planetary Science Letters, 351-352, 54-69.
- Nowaczyk, N.R., et al. (2021) Records of the Laschamps geomagnetic polarity excursion from Black Sea sediments: magnetite versus greigite, discrete sample versus U-channel data. Geophysical Journal International, 224, 2, 1079–1095.