Discussed in this paper are the relationship between the compressive fault zone and mineralization, and the regularities governing the concentration-dispersion of elements in the compressive fault zone based on chemically determined data from field and laboratory studies of megascopic structures and tectonite. Horizontal zoning has been recognized in the compressive fault zone, with four distinct zones from the centre outwards. Four groups of chemical components in these four zones are distinguished: the first group --SiO2, FeO, MgO and MnO; the second -- Fe2O3, Na2O and K2O; the third -- CaO and Al2O3 ; and the fourth -- TiO2 and P2O5. Furthermore, various tectono-geochemical processes (including dynamic differentiation or mechanical metamorphic differentiation, dynamically thermal metamorphism,oxidation-reduction, and hydrolysis and dewatering) in the fault zone are also discussed in detail.
展开▼
