Transcript Intro to Geo Test 1

What is geology?
Goal: Tell the types of things that might be
studies in geology.
AB partners: Tell three things you think might
be discussed in geology.
All of these are topics in geology
except…..
Types of Rock
Goal: Name the three categories of rock and tell
how they form.
AB partners: tell what you know about
sedimentary, igneous and metamorphic rock.
Igneous
Rock
Sedimentary
Rock
Metamorphic
Rock
Types of rocks
Weathering vs Erosion
Chemical Weathering
Erosion
Weathering or erosion?
Large Scale Erosion: Landslides
Sedimentary Rock Formation Examples
travertine
Dunn River Falls
Chemical Sedimentary Rock
Jamaica
Yellowstone National Park
Travertine Hot Springs
Turkey
Shale - sedimentary
Shale
Igneous
Igneous Lake
Igneous Rock Goals
• Be able to tell the relative chemical
composition. (Does it have a high or low silica
content.)
• Tell if the rock cooled quickly or slowly.
• Tell WHERE it formed.
• (Tell if it came from a violent or gentle
eruption.)
Igneous Rock Lab
Rhyolite
Andesite
Basalt
Igneous Rock Lab
Rhyolite
Andesite
Basalt
What IS your
metabolism?
Your metabolism changes
_______ to _________.
 Meaning to change shape
 Changes with temperature
and pressure, but remains
solid
 Usually takes place deep in
the Earth
http://www.fi.edu/fellows/payton/rocks/create/metamorph.htm
Schist
Slate
 Regional Metamorphism –
pressure builds up in rocks
that is deep within the Earth
 Large pieces of the Earth’s
crust collide and the rock is
deformed and chemically
changed by heat and pressure
http://www.windows.ucar.edu/tour/link=/earth/geology/meta_regional.html&edu=high&fr=t
Road-cut
• Contact Metamorphism – heated by nearby magma
• Increased temperature changes the composition of
the rock, minerals are changed into new minerals
Hornfels is a fine-grained non-foliated
metamorphic rock produced by
contact metamorphism
http://www.windows.ucar.edu/tour/link=/earth/geology/meta_contact.html&edu=h igh&fr=t
• Non-Foliated – mineral grains are not
arranged in plains or bands
Marble is a nonfoliated metamorphic
rock that is produced
from the
metamorphism of
limestone.
It is composed
primarily of calcium
carbonate.
Schist
Lab Slides
• earth after plate tect
http://www.youtube.com/watch?v=pg_jKJFbA2A
http://www.youtube.com/watch?v=Yf4YtDlA1oQ Sed rock types
http://www.youtube.com/watch?v=PqgHUPSTojY Igneous rock – intrusive and extrusive
http://www.youtube.com/watch?v=9Df4CtlZ0AQ sedimentary
http://www.youtube.com/watch?v=o-NnUadhT5Q canadian shield
http://www.youtube.com/watch?v=KCSJNBMOjJs
http://www.youtube.com/watch?v=dgn-xSZHItU Igneous rock example video
http://www.youtube.com/watch?v=65rogEH0n9I crazy 70’s guy metamorphism
http://www.natgeoeducationvideo.com/film/1031/the-formation-of-earth how the
earth formed
http://www.youtube.com/watch?v=egEGaBXG3Kg lava lake