2.3. Rock Magnetism Measurements
High-temperature magnetic susceptibility measurements ((χ) mass
normalized) were performed up to 635 °C using an Agico Kappabridge
MFK1-FA susceptibility meter to determine the magnetic minerals in the
samples. Isothermal remanent magnetization (IRM) acquisition was
performed at 25 mT intervals from 0 to 100 mT, 50 mT intervals from 100
to 400 mT, and 100 mT intervals from 400 to 1000 mT using a Magnetic
Measurements MMPM10 pulse magnetizer. Stepwise AF demagnetization of IRM
was performed at 5 mT intervals from 0 to 40 mT and 10 mT intervals from
40 to 50 mT using an Agico LDA 5 AF demagnetizer. All the remanent
magnetizations were measured using an Agico JR-6 spinner magnetometer
after each step. The samples for the rock magnetism measurements were
chosen according to the paleomagnetic data.