31. All streams are sinuous at some time in their geologic history over some part of their length. 32. The nearby East Gorge Walk and West Gorge Trail offer a peek into the area's geologic history . 33. The Cretaceous was also the last period in geologic history that Utah was covered in sea water. 34. Although a comparatively unusual type of volcano, they are widespread in the world and in geologic history . 35. Hence, the geologic history of Earth may very well set the stage for a future of asteroid mining. 36. For example, the Yellowstone Caldera was formed by some of the most powerful volcanic explosions in geologic history . 37. Benner compares the human genome to other species'genomes, and puts the data into the context of geologic history . 38. Its geologic history is also complex. 39. This rock has been significantly affected by glaciation, which dominates much of the recent geologic history of the area. 40. Examining a rock's layers can give scientists hints about the geologic history of the region where it was found.
