Measurement of the magnetization

Analytical Department, Measurement of the magnetization of rocks and terracotta

  1. Paleo-archeomagnetism laboratory
  2. Members

Paleo-archeomagnetism laboratory

Rocks as well as terracotta magnetize each other, thereby fossilizing the direction and the local standards of the Earth's magnetic field. By studying the magnetization of the rocks, it is possible, for example, to reconstruct the position of continents during geological time, to reveal some aspects of local tectonics to understand the functioning of the Earth's magnetic field in the past or date the magnetized objects. The magnetization of terracotta is also a tool for dating archaeological material.
 
Main equipment:
 

  • A 2G Cryogenic Magnetometer (4°K without liquid helium) with an in-line alternating field demagnetization system, all placed in a nonmagnetic chamber
  • A JR-6 Spinner Magnetometer
  • A Molspin Spinner Magnetometer
  • Non-magnetic ovens (Pyros and MMTD) and alternating field demagnetization system (Schonstedt)
  • A KLY3 AGICO Susceptibilimeter for measuring the anisotropy of magnetic susceptibility (AMS) with a micro-oven to determine the Curie temperatures
  • ASC Impulse Magnetometer
  • Pumping system for heating vacuum-packed samples
  • Sample Preparation Room (Saw, vertical corer)
  • Field equipment (electric drills and thermal drills, sample orientation system)
magnetometer in the non-magnetic chamber - © Annick Chauvin

 

Measurement of the magnetization - © Annick Chauvin

Members