Figure F7. A. Unit III microfacies from Sample 194-1192B-12X-3, 25-27 cm, under cross-polarized light. This photomicrograph illustrates a skeletal wackestone with planktonic foraminifers (pf) and quartz (qz). Quartz grains are ~300 µm in diameter and are irregularly distributed. B. Unit III microfacies from Sample 194-1192B-12X-3, 25-27 cm, under cross-polarized light. This photomicrograph illustrates skeletal wackestone with planktonic foraminifers, thin-shelled fragments, quartz, glauconite, and pyrite. C. Unit III microfaciesfrom Sample 194-1192B-12X-3, 25-27 cm, under plane-polarized light. This photomicrograph illustrates a skeletal wackestone with planktonic and benthic foraminifers. Benthic foraminifers are pervasively glauconitized, whereas planktonic foraminifers are not. The former could represent reworked grains from older sediment or could originate from a coeval but shallower depositional setting.

Figure F7. A. Unit III microfacies from Sample 194-1192B-12X-3, 25-27 cm, under cross-polarized light. This photomicrograph illustrates a skeletal wackestone with planktonic foraminifers (pf) and quartz (qz). Quartz grains are ~300 µm in diameter and are irregularly distributed. B. Unit III microfacies from Sample 194-1192B-12X-3, 25-27 cm, under cross-polarized light. This photomicrograph illustrates skeletal wackestone with planktonic foraminifers, thin-shelled fragments, quartz, glauconite, and pyrite. C. Unit III microfaciesfrom Sample 194-1192B-12X-3, 25-27 cm, under plane-polarized light. This photomicrograph illustrates a skeletal wackestone with planktonic and benthic foraminifers. Benthic foraminifers are pervasively glauconitized, whereas planktonic foraminifers are not. The former could represent reworked grains from older sediment or could originate from a coeval but shallower depositional setting.