In paleomagnetic remanence studies, these components can be separated, identified and dated. Separation of remanence components is performed either by step-wise alternating field (AF) or by thermal demagnetization. AF demagnetization does not destroy the sample.
The most sensitive equipment for remanence measurements is the He-free superconducting SQUID magnetometer (2G Enterprises), which is mostly used for paleomagnetic studies of rock and sediment samples and studies on magnetic mineralogy. The device is connected to a AF demagnetizer.