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Week 2 Wednesday and Friday Notes

by: Hailey-Rae Rose

Week 2 Wednesday and Friday Notes Geol 201

Hailey-Rae Rose
Cal Poly
GPA 3.6

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About this Document

These notes describe latent heat and it's role in the Earth's cooling.
Physical Geology
Professor Hughes
Class Notes
25 ?




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This 3 page Class Notes was uploaded by Hailey-Rae Rose on Sunday April 17, 2016. The Class Notes belongs to Geol 201 at California Polytechnic State University San Luis Obispo taught by Professor Hughes in Spring 2016. Since its upload, it has received 11 views. For similar materials see Physical Geology in Geology at California Polytechnic State University San Luis Obispo.

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Date Created: 04/17/16
Wednesday, April 6, 2016 Earth's Heat Moonshine Lab - Bitters experiment 44.7% alcohol, 55% water, and 0.3% spice • • Alcohol boils at 80 degrees Celsius • What will happen with the thermometer reads 80 degrees Celsius? - We will still be adding heat energy to the system and the alcohol will start to boil, the temperature of the fluid will stay at 80 (converted liquid alcohol to vapor without increasing the temperature of the system) - Eventually all of the alcohol will boil off and then there will just be water • 1. The inner core is solid and the outer core is liquid and as the earth cools by thermal radiation, the inner core grows while releasing latent heat • 2. Distillation in our lab increases the concentration of water in our original flask and the concentration of alcohol In the condensed vapor (distillate) - Alcohol is more concentrated in the distillate rather than the source because alcohol boils at a lower temperature than water - The temperature rises from the heat from below caused by the liquid core solidifying 1 Wednesday, April 6, 2016 - The increased heat leads to fractional melting: minerals with the lowest melting point melt while minerals with higher melting points stay solid - Melted materials rise and solid ones sink to the bottom of a magma chamber, the rising magma chamber and force of gravity acting together cause the lithosphere to split apart - The Moho - the boundary between the crust and mantle - undergoes fractional melting and the crust is made out of lower-melting temperature minerals compared to the mantle - The mantel which is mostly primordial undergoes fractional melting/distillation and creates the ocean crust out of besalt and gabbos 2 Wednesday, April 6, 2016 - Lithosphere is made of crust and upper mantle - Aesthenosphere had no rigidity (it means no strength in Latin) - Subduction zone creates more fractional melting (2 or 'sequel') 3


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