Geochemistry, Paragenesis, and Wall-Rock Alteration of the Qatruyeh Iron Deposits, Southwest of Iran: Implications for a Hydrothermal-Metasomatic Genetic Model

Figure 5

Replacement textures in magnetite-hematite and host rock (all photomicrographs have been taken in transmitted light). (a) Widening of a fracture filling where the fracture crosses a chemically reactive rock, (b) irregular or vermicular intergrowths, (c) rims of one mineral penetrating another along its crystallographic direction, and (d) concave surface into the host or cusp and caries texture and remnant islands of the replaced host.

(a)

(b)

(c)

(d)