SYNCHRONOUS SYNTHESIS OF PRIMARY AND SECO NDARY INCLUSIONS IN QUARTZ

Primary and secondary fluid inclusions are characterized by different formation mechanisms, which some researchers believe has bearing on th e consistency of inclusion properties with that of the parent solution . Synthetic inclusions modeling natural primary and secondary inclusio ns were produced in experiments under identical physicochemical condit ions. Growth of quartz crystals on a seed and concurrent fracture heal ing were carried out in an autoclave under the conditions of a tempera ture gradient. The synthetic inclusions in the zones of new-formed qua rtz (primary) and in healed fractures (secondary) were investigated by microthermometric methods. The composition of all inclusions correspo nded to that of experimental solutions. The homogenization temperature of primary and secondary inclusions differed insignificantly. The exp erimental results obtained confirm the conformity of the properties of primary inclusions to those of parent solution.