Correlative microscopy of the constituents of a dinosaur rib fossil and hosting mudstone: Implications on diagenesis and fossil preservation
((A), (B)) The platy morphology of illite observed from a FIB-milled sample. SAED pattern indicates that illite “plates” are layered in rotation with one another. ((C), (D)) Illite “plates” obtained via ultrasonic drilling and spraying. (C) The tiny “specs” are Au nanoparticles used as the internal standard for d-space measurements. The smaller crystals are apatite. (D) SAED pattern indicates that illite “plates” are layered with some rotation with one another.