THE CHARACTERISTICS OF PERMIAN HYDROTHERMAL DOLOMITITE OF S SECTION OF LONGMENSHAN MT
According to the study,the Permian dolomitite,dolomitic limestone and limestone are in gradual change and transitional relationship.The zebra-like structure is developed in dolomitite.The dolomite is mostly saddle-like or in unusual form.The C,O in dolomite are lower than those in the wall rock;however,Sr higher than that in the later,which is consistent with structural hydrothermal dolomitite.The intensity is controlled evidently by the structure,which is degraded from the orogenetic zone to the basin.