EESA06H3 Lecture 8: Lecture 8
Document Summary
normally plates only move 2. 5cm a year. tilting up of the ocean floor towards japan caused the huge tsunami. Geologic time and stratigraphy: stratigraphy arranging rocks in a logical sequence according to their age, greek word strata - layer, how we measure time. Means of a flood rocks were diluvium , associated with flood , they were deposited by. recognized unconformities within layers of rocks and the igneous origin of granite: he showed there were erosion/breaks & gaps in the geological record (aka unconformities). These gaps were records of ancient geological processes. proposed concept of uniformitarianism the present is the key to the past: can use modern geological processes (i. e. volcano erupt) to determine the past (aka actualism) came into conflict with abram werner and diluvialism and catastrophism (what we see out there today is the result of floods)
