Figure 2
(a) Whole-rock powder XRD patterns for the trioctahedral samples studied. Fsp denotes feldspar, Cal Calcite, I illite, Kaol kaolinite, Qz quartz and Sm smectite. The dashed lines, from left to right, indicate the 001, 020, 131 and 060 smectite reflections, respectively. (b) XRD patterns of the oriented aggregates of the trioctahedral samples. Red denotes air-dried oriented aggregate, blue denotes ethylene glycol-solvated oriented aggregate and green denotes heated (823 K) oriented aggregate. |