Figure F5. Photomicrograph of Unit I microfacies from Sample 194-1192B-1H-1, 58 cm, illustrating a skeletalpackstone with planktonic and benthic foraminifers. Note the difference in lithology between infillings of intragranular pores (dense micrite) and those of intergranular pores (peloidal, silt-sized micrite) indicative of grain reworking.