Astronomy 2021A/B Chapter Notes - Chapter 3: Proterozoic, Hadean, Carbonate Rock

• School: Western University
• Department: Astronomy
• Course: Astronomy 2021A/B
• Professor: Martin Zinke- Allmang

Document Summary

Geology: the study of earth, the study of any world with a solid surface. Three i(cid:373)porta(cid:374)t aspects of earth"s geolog(cid:455): volcanism. Vol(cid:272)a(cid:374)i(cid:272) a(cid:272)ti(cid:448)it(cid:455) releases gases that (cid:271)e(cid:272)a(cid:373)e trapped i(cid:374) earth"s i(cid:374)terior as our pla(cid:374)et for(cid:373)ed (cid:894)the origi(cid:374)al sour(cid:272)e of earth"s at(cid:373)osphere a(cid:374)d o(cid:272)ea(cid:374)s(cid:895) Releases heat and creates chemical environments (suspected to have helped lead to the origin of life: plate tectonics. Earth"s surfa(cid:272)e shaped (cid:271)(cid:455) the (cid:373)o(cid:448)e(cid:373)e(cid:374)t a(cid:374)d re(cid:272)(cid:455)(cid:272)li(cid:374)g of ro(cid:272)k (cid:271)et(cid:449)ee(cid:374) the surfa(cid:272)e a(cid:374)d the interior. Largely responsible for the long-term climate stability that has allowed life to evolve and thrive: earth"s magnetic field. Global magnetic field generated deep in the interior. Hields earth"s at(cid:373)osphere fro(cid:373) the e(cid:374)ergeti(cid:272) parti(cid:272)les of the solar (cid:449)i(cid:374)d. Igneous rock: made from molten rock that cools and solidifies. Metamorphic rock: structurally or chemically transformed by high pressure or heat that was not quite high enough to melt it.