BIO 200 Lecture Notes - Lecture 3: Catastrophism, Gradualism, Glyptodon

13 views3 pages

Document Summary

Sedimentation- sediments deposited by water were compressed to form stone; occurred so slowly that rocks had materials from former continents. Erosion- reverse process of sedimentation; rocks exposed to elements break down into sediments. Gradualism- hutton: profound change is the cumulative product of slow but. Continuous processes; 1st major contradiction of young earth hypothesis ; Did not occur over a short period of time earth had to be very old for this process to occur. Great geological cycle- coupling of destruction= sedimentation + erosion (shape rock) We find no vestige of a beginning [of time], no prospect of an end - geologic structures changed through time by natural processes; the processes in the past are occurring today. Invisible hand - smith: the free market is guided to produce the right amount and variety of goods; chaos is governed by invisible hand. Competition and self-interest- competition benefits free market by keeping prices low, while still building incentive for goods and services.