A review of researches on the mineral dissolution and reprecipitation process
The dissolution and reprecipitation process of minerals,play a crucial role in many geological evolution processes,can stimulate sufficient reaction between mineral-fluid interface and re-migration and re-enrichment of some elements.In recent years,with the development of sophisticated analytical techniques for sample preparation and in-situ observation analysis,including the focused ion beam combined transmission electron microscopy(FIB-TEM)and the nanoscale secondary ion mass spectrometer(Nano-SIMS),considerable achievements of researches on mineral interface chemistry have been obtained and published.It has been shown that the dissolution and reprecipitation process is a more efficient exchange mechanism for the material exchange compared to the solid-state diffusion especially under the condition of low temperature and presence of solvent.In this paper,we have reviewed the research history of the dissolution and reprecipitation process,summerized main research progresses on the process in the past two decades,including the identification characteristics of structures in different mineral phases(silicate,phosphate,carbonate minerals and oxide,sulfide minerals,etc.),the migration and enrichment regulations of elements,and the primary observation and analysis methods for relevant researches,systematically reviewed main influencing factors of the dissolution and reprecipitation process,and finally made a perspective on the future development direction in this field.
the dissolution and reprecipitation processreplacement reactionmineralizationmineral phasesinterface chemistry
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维普
