study of the intensity and orientation of the earth's magnetic field as preserved in the magnetic orientation of certain minerals found in rocks formed throughout geologic time.
Paleomagnetic studies of rocks and ocean sediment have demonstrated that the orientation of the earth's magnetic field has frequently alternated over geologic time.
The particular importance of the results is that they show that low-angle normal faults can operate in a brittle upper crustal regime.
the ability of rocks to be magnetized by the earth’s magnetic field during the rocks’ formation and to retain the magnetization acquired (remanent magnetization) in subsequent epochs.
The hydrostatic pressure on the ocean bottom, however, exerts an upward pressure on the core that will work against a vacuum being created between the piston and the top of the core.
The piston, in effect, provides a suction that overcomes the frictional forces acting between the sediment sample and the inside of the coring tube.
150 Ma), corresponding with stages of major extensional movements on the continental shelf.
Palaeomagnetic studies may be of great importance for dating faults and major movement stages in long-lived fault systems.