Diagenetic Fluid and Its Impact on Sandstone Reservoirs in the Southern Boxing Sag, Dongying Depression, Bohai Bay Basin, China

Figure 6

Cathodoluminescence (CL) observation of carbonate cements. (a, b) F1, 3319.1 m: calcite (Cc) and ankerite show the yellow and dark luminescence, respectively; (c, d) F104, 3059.4 m: the dissolution of feldspar (F) and Fe-calcite show the dark red luminescence.

(a)

(b)

(c)

(d)