Impacts of Pore-Throat System on Fractal Characterization of Tight Sandstones

Figure 7

Correlation coefficients of the (a) skeleton particles and (b) interstitial minerals and fractal dimensions. Positive values mean positive relationships, while negative values represent a negative correlation. QU: quartz; FS: feldspar; IF: igneous rock fragments; MF: metamorphic rock fragments; SF: sedimentary rock fragments; MI: mica; IL: illite; CH: chlorite; I/S: I/S mixed layer; CA: carbonate; QO: quartz overgrowth.

(a)

(b)