Study guide

Our Home Planet: ESS105 Study Guide

281 views 1 purchase

Course
ESS105 (ESS105)

Institution
University Of Toronto (U Of T )

Complete study guide for Our Home Planet ESS105; these documents contains detailed notes and diagrams/figures to go along with the notes. Included are also study questions and highlights of the most important topics. Bonus: I received an 87% (4.0 GPA) in this course using these notes.

[Show more]

Preview 1 out of 27 pages

View example

Uploaded on October 13, 2019
Number of pages 27
Written in 2018/2019
Type Study guide

CA$51.05

Added

Add to cart Add to wishlist

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

Lecture 1: Earth Science
The Nature of Geology
 Geology influences where we live (e.g. Living near volcanic eruptions may seem counterintuitive but ash
provides fertilization for adjacent land)
o Streams: flood hazard, water supply, soil nutrients, etc.
o Too close to mountains = landslides and some slopes are too steep to build on
 There is evidence of past global climate change because we can see the change in extent of glaciers and ice sheets
(related to sea levels)
 Fe mines in very old rock due to severe change in earths atmosphere while Cu mines are in younger rocks related
to mountain building
Inside the Earth
 The earth is broken up into 3 main layers and these layers are defined by their compositions:
1. Crust: the crust is the highest layer and is split into;
i. Continental crust: thicker & less dense
ii. Oceanic crust: thinner and more dense
2. Mantle: the mantle is the thickest layer and is split into upper and lower mantle
3. Core: the core is the deepest layer and is made of Fe-Ni molten in the outer core and solid inner core
Physical Properties to Consider
 The lithosphere consists of the crust and upper mantle while the
asthenosphere is the lower mantle
o The asthenosphere is hot, weak, and mostly solid so it can
flow a little bit
 Some regions are higher than others because of the relative thickness
of crust (e.g. Thicker crust will protrude more at top and bottom)
o The relationship between crustal thickness and elevation is
called isostasy
 Isostasy if affected by both the thickness and density of the crust
Atmosphere and Earth's Surface
 Atmosphere blocks some light and UV, sun's energy converted into IR is also blocked by atmosphere
 Land and sea absorb heat
 Moreover, different environments form different materials (e.g. Rocks formed in normal surface environments are
sedimentary rocks)
 At steep mountain front: Sediment is large, angular, poorly sorted = formed by breaking away from bedrock and
moved downhill under influence of gravity
 At sand dunes: Sediment is sand sized and well sorted since sand moved by wind because wind cannot pick up
larger particles
 At beach: sediment is rounded
Rock Formation
 Igneous rocks: formed from magma
 Metamorphic rock: rocks altered by pressure and/or
heat
 Other rocks formed in hot or deep conditions (e.g.
Precipitation from hot water creates hydrothermal rock)
 Weathering: various mechanical and chemical
processes that cause exposed rock to decompose
 Erosion and transport: rock/land is worn away
through water, wind, etc. And moved elsewhere
 Deposition: where the rock ends up/settles
 Uplift: processes involved in mountain building
 Burial: covering over of sediment by more and more
layers, leading to compaction and cementation of grains

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller khadijahammawa. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for CA$51.05. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

73918 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling