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Women describe life at sea.
These dynamited cliffs along roadsides expose rocks that had previously been inaccessible. Geologists studying these road cuts can decipher the processes that shaped these rocks and the surrounding landscape. Marine geologist Kathy Gillis studies the seafloor equivalent of road cuts. Faults along the seafloor at the mid-ocean ridges have ripped open the ocean crust, creating rifts in the seafloor that are as deep as six kilometers. For Kathy, the exposed ocean crust provides a window into the processes that take place under the seafloor.