Exercise 4 depositional environments 49 part b blackhawk formation, cretaceous, price canyon, utah (figure 4.8) 1. what is the dominant sedimentary rock type shown in figure 4.8 2. what economically important sedimentary rock occurs in this outcrop? 3. rocks of the blackhawk were most likely depos- ited in which of the sedimentary environments listed in table 4.1? explain your answer.