GEOLOGY 1 Chapter 18: Geology 1 - ch 18
Document Summary
Climate changes: contributing to the complex evolutionary history of the earth system. Other gasses (argon, co2, water vapor, ozone, methane, etc. ) 300-year period (100-1300), earth was considerably warmer than normal: known as the medieval warming period (mwp) Followed by the little ice age (lia): mid 1400-1700. Lia would have created treacherous sea conditions, famine due to crop failures, and contributed to the spread of the black plague. Climate changes are believed to have caused the abandonment of viking settlements in. Geologic record: sediments deposited on floodplains, in lakes, bogs, or the ocean. The instrumental record: 1860s to present (currently about 7000 stations around the world) The historical record: books, newspapers, journal articles, personal journals. The paleo-proxy record: proxy data refers to data that is not strictly climatic but that can be correlated with climate, such as temperature of the land or sea, ice cores, tree rings, pollen, corals, carbon-14, co2, and methane.
