Correlative microscopy of the constituents of a dinosaur rib fossil and hosting mudstone: Implications on diagenesis and fossil preservation
FIB 1–5 was obtained from an area with rich clay content, and all SAED patterns from areas with dense apatite population resulted in moderate to a slightly strong degree of preferred orientation. Both FIB 7 cross samples were milled from areas notably lacking in clay content. Besides cross X1, all SAED patterns lacked preferred orientations. C = calcite, I = illite.