Fly tо “Mоenkоpi/Chinle Formаtion, Virgin Utаh”. Two formаtions, the Moenkopi (Early-mid Triassic) and the Chinle (Late Triassic), make up the majority of Triassic deposits in the midwest. Explore the photos in the area and click the name of the placemark to see three images. The first rock sample is from the Moenkopi formation and is a very fine-grained clastic rock; the second is from the lower Chinle formation and is made of pebbles and cobbles. What is the rock type sampled from the Moenkopi formation?