GEOL 106 Lecture 1: geol 106 lecture 1 of week 12 , april 4th

• School: Queen's University
• Department: Geological Sciences and Geological Engineering
• Course: GEOL 106
• Professor: John Hanes

Document Summary

Geol 106, tuesday april 4th lecture # 1 week 12 the keeling curve measures the amount of carbon dioxide in the atmosphere in the last 60 yrs photosynthesis in plants coupled with: the seasons winter: trees dormant. Co2 is not being extracted grin atmosphere spring/summer: trees active. There is an up and down pattern of co2 with a period of - 100,00 years what is the cause of this? what does the soil/rock record tell us bout the last 600,000 years? canada (and northern europe) 20,00 year old till found in kingston , ontario in fact, we can recognize from the soil record many glacial/interglacial periods over the last ca. 2 million years we can compare the atmospheric co2 variations with the soil/rock record of glacial/interglacial periods what is the relationship between atmospheric co2 concentration and temperature during the last. Warming can lead to more warming: melt the white ice. Then less sunlight is re ected: melt frozen permafrost.