GEOL 103 Lecture Notes - Lecture 5: Oxygen-18, Flowering Plant, Calcite
30 May 2018
School
Department
Course
Professor
1
GEOL 103
Spring 2018 AEC Notes
Prof: Davis
4/16/18 (Week 3, Class #5) Monday
Next monday: 1st midterm
Lecture notes on Canvas:
https://canvas.uoregon.edu/courses/105822/files/folder/Lecture%20Notes?preview
=5196102
The Carbon Cycle (parts)
● The Photosynthesis-respiration cycle in plants (Biological!)
○ The carbon cycle (in terms of food and climate)
○ Sulight proides eerg→ photosthesis or respiratios CO
ad ater or sugar ad oge → eerg released for
metabolism
○ Green part of plant does photosynthesis, produces sugar and fixed
aro produe ore tha the eed to surie → fruits,
oxygenate rest of plant)
○ Burning sugar inside body to produce carbon dioxide and water
○ Losing weight: breathing out that energy being used up
● Chemical weathering of rocks (Abiotic)
find more resources at oneclass.com
find more resources at oneclass.com
2
○ Weathering is a series of chemical reactions
○ CO2 in the atmosphere reacts with rocks (like granite -- stable in
earth, unstable at surface) to produce water and minerals that are
stable at the surface (clay/limestone)
○ CO + CaALSiO8 + H → ← AlSiO OH_____
■ Carbonic acid reaction: water Atm
● Breaking CO2 into its ionic form
■ Lad: graite iteratig ith free Hdroge ios→
produce calcium ions and clay
● Granite dissolved
■ Ocean: (washed down): i ith ore Co→ free aro
dioxide + calcium carbonate (limestone)
■ Trap from unstable to stable form in the ocean
● Not a Steady state system
○ We are interested in the fluctuation
○ Rate in and out are not equal
○ How fluxes control the volume of a reservoir
○ Eventually, with enough a reserve, you will end up with a new
steady state
● Carbon Cycle Diagram (*will be used on test)
○ If a plant has microbes that no other animal can decompose, it
gets uried → fossil fuels ood
■ Between when wood evolved and when decomposers
evolved to decomp it
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
The carbon cycle (in terms of food and climate) Su(cid:374)light pro(cid:448)ides e(cid:374)erg(cid:455) photos(cid:455)(cid:374)thesis or respiratio(cid:374)s (cid:894)co(cid:1006) a(cid:374)d (cid:449)ater or sugar a(cid:374)d o(cid:454)(cid:455)ge(cid:374)(cid:895) e(cid:374)erg(cid:455) released for metabolism. Green part of plant does photosynthesis, produces sugar and fixed (cid:272)ar(cid:271)o(cid:374) (cid:894)produ(cid:272)e (cid:373)ore tha(cid:374) the(cid:455) (cid:374)eed to sur(cid:448)i(cid:448)e fruits, oxygenate rest of plant) Burning sugar inside body to produce carbon dioxide and water. Losing weight: breathing out that energy being used up. Weathering is a series of chemical reactions. Co2 in the atmosphere reacts with rocks (like granite -- stable in earth, unstable at surface) to produce water and minerals that are stable at the surface (clay/limestone) Co(cid:1006) + caal(cid:1006)si(cid:1006)o8 + (cid:1007)h(cid:1006)(cid:895) al(cid:1006)si(cid:1006)o(cid:1009) (cid:894)oh(cid:1008)(cid:895)_____ La(cid:374)d: gra(cid:374)ite i(cid:374)tera(cid:272)ti(cid:374)g (cid:449)ith free h(cid:455)droge(cid:374) io(cid:374)s produce calcium ions and clay. Ocean: (washed down): (cid:373)i(cid:454) (cid:449)ith (cid:373)ore co(cid:1006) free (cid:272)ar(cid:271)o(cid:374) dioxide + calcium carbonate (limestone) Trap from unstable to stable form in the ocean. Rate in and out are not equal. How fluxes control the volume of a reservoir.
