Sedimentary Petrology at USC is currently oriented towards carbonate and mixed siliciclastic-carbonate depositional systems/diagenetic environments with emphasis on microbial-sediment interaction (stromatolites, etc.), animal-sediment interaction (bioturbation), coated grains (oncoids, ooids, etc.), Precambrian carbonates, lacustrine carbonates, laminated/cyclic carbonates, and carbonate diagenetic trends through time. In-house facilities include high-end microscopy and photomicroscopy/digital imaging, cathodoluminescence, SEM, XRF, XRD, and stable isotopic laboratories, with nearby access to ICPMS, electron microprobe, ion microprobe, and TEM.