The collection of samples in order to study their magnetic properties in the laboratory. The samples may be unoriented if they are only for rock-magnetic properties, e.g. magnetic susceptibility, magnetic intensity. For most archaeomagnetic and palaeomagnetic purposes samples are collected using a small portable drill and oriented using Sun, magnetic, or surveying methods, or gyrocompasses, and often utilizing special orientation devices to ensure precision.
Subjects: Earth Sciences and Geography.