Furnaces

Zero-field furnaces

Two Pyrox furnaces used for thermal demagnetization, located in the magnetic shielded room.
Capacity of 24 samples each.
Field in the cooling part: 2 to 5 nT.

Mobile medium capacity paleointensity furnace

Pyrox furnace used for palaeointensity experiments.
Up to 48 standard size samples.
Heating and cooling in air or under Argon flow continuously passing over the samples and controlled by a bubbler.
Furnace kept at the right temperature and positioned over the tube containing the samples for the time needed for the heating. Cooling either by inertia or with air-circulation around the tube.

Four à paléointensité moyen

Large capacity palaeointensity furnace

Pyrox furnace.
Up to 72 standard size samples.
Measurement in the morning, heating in the afternoon, cooling overnight.

Small capacity palaeointensity furnace

Homemade furnace.
8-9 standard size samples.