Various magnetic minerals and each other, s transformation phenomena exist in carbonate rocks .Magnetic minerals produced in the each stage of the sedimentation evolusion process of the rocks carry information about the palaeoenvironment in their occurrence,thus they become direct objects of study in sedimentary palaeogeography and environment magnetism.Magnetic minerals derive primary remanent magnetization from the geomagnetic field during their diagenesis.It is prereguisite for gaining the reliable palaeomagnetic data,which are used for working out polar wander paths,drawing up palaeogeography maps with nonpresent boundaries and working the palaeogeographic reconstruction,correctly to identify them and to distinguish remanent magnetism components of all kinds.Thus,they become the major objects of study in palaeomagnetism and tectonic palaeogeography.In the epigenesis stage,magnetic minerals into which is usually translated by the primitive ones are often caused by tectonic movement or by the magmatism and the fluid medium activity relating to it .New magnetic minerals carry some information about remagnetized remanent magnetization .Thus,they should similarly be the major objects of study in palaeomagnetism and tectonic palaeogeography. We will offer more reliable and abundant palaeomagnetism data to people for working the palaeogeographic reconstruction if we collect more samples relative to the tectonic event and the thermal event and advance the minerageny study for magnetic minerals.It follows that the tight relation between magnetic minerals and the study on palaeogeography reguires our close attention though palaeogeography,a highly comprehensive branch of geoscience, has evolved into several branches.
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