ESS 101 Lecture Notes - Lecture 2: Geothermal Gradient, Methane Clathrate, Ocean Acidification

• School: UW
• Department: Earth and Space Sciences
• Course: ESS 101
• Professor: Swanson Terry

Document Summary

January 9th, 2017 long term climate factors (plate tectonics) Wilson cycle process of plate tectonics. Last supercontinent to be assembled was pangea, prior was rodinia. Eventually continents will come back together to create a new supercontinent. The wilson cycle takes about 600 my to complete a cycle. Stomata is used as a proxy for concentration of co2. Stomata are the pores plants use to (cid:862)i(cid:374)hale/e(cid:454)hale(cid:863) Size (area) of the stomata depends on the. Co2 concentration: high co2 = small stomata and vice versa. Leaves are well preserved as a fossil. Graph plots multiple proxies to reduce variability. The blag hypothesis: hypothesis that seafloor spreading controls long term climate because of the. Plate tectonics (cid:272)o(cid:374)trols the a(cid:373)ou(cid:374)t of (cid:272)ar(cid:271)o(cid:374) o(cid:374) the earth(cid:859)s surfa(cid:272)e: sea floor spreading center adds co2 to the earth(cid:859)s surfa(cid:272)e, control long term global climate. Largest (cid:272)(cid:455)(cid:272)le is (cid:373)a(cid:374)tle to (cid:373)a(cid:374)tle, short (cid:272)ir(cid:272)uit (cid:272)(cid:455)(cid:272)le is that the(cid:455)(cid:859)re incorporated into melted rock and re- transported to the surface.