The Geophysics Research Laboratory

The geophysics research laboratory consists of instruments for rock physical properties measurements (magnetism, density, porosity, mechanical and thermal properties). The research topics include paleomagnetism, rock magnetism, petrophysics, environmental magnetism and extraterrestrial material research.

Instruments

  • 2G Model 755 DC SQUID Superconducting Rock Magnetometer with 2G Model 600 AF demagnetizer (310 mT)
  • AGICO JR-6A spinner magnetometer
  • ASC Model TD48-SC thermal demagnetizer (800°C in vacuum or controlled atmosphere)                     
  • AGICO LDA-3A AF demagnetizer (100 mT) with AMU-1A ARM magnetizer (500 uT)
  • AGICO KLY-3S kappabridge (875 Hz, 300 A/m rms) with CS-L and CS-3 low and high temperature units (-190°C – +800°C) and AMS spinner (2x10-8 SI)
  • MMPM 10 pulse magnetizer (9 T)
  • AGICO PUM-1 pulse magnetizer (200 mT)
  • Quantachrome Ultrapyc 1200e pycnometer (grain volume measurement)
  • Ultrasonic vp and vs measurement under variable pressure and temperature               
  • Risto 5 petrophysics set with: density, magnetic susceptibility (1025 Hz, 48 A/m rms), magnetic remanence, and electric conductivity units
  • Princeton Measurements Model 3900, Vibrating Sample Magnetometer (1.2 T)
  • ZH instruments SM100/105 multifrequency susceptibility meter (0.063 – 512 kHz, 10 – 320 A/m rms)

Contact

Tomas Kohout
+358 2941 51008, firstname.lastname (at) helsinki.fi