Presentation on theme: "Dynamic Planet 2 nd year Volcanoes and Earthquakes I have approached this event by teaching a-q as individual sessions. Using the computer allows the team."— Presentation transcript:
Dynamic Planet 2 nd year Volcanoes and Earthquakes I have approached this event by teaching a-q as individual sessions. Using the computer allows the team members to teach themselves.
http://wapi.isu.edu/EnvGeo/EG6_volcano/volcanoes.htm http://wapi.isu.edu/EnvGeo/EG6_volcano/volcanoes.htm Review the powerpoint show and look at the links at the end of the reading. http://www.scarborough.k12.me.us/wis/teachers/dtewhey/webquest/nat ure/volcanoes.htm http://www.tulane.edu/~sanelson/geol111/igneous.htm Excellent site for rock information! Must see http://www.scarborough.k12.me.us/wis/teachers/dtewhey/webquest/nat ure/volcanoes.htm http://www.tulane.edu/~sanelson/geol111/igneous.htm
Shield Volcano A shield volcano is is typically built by eruptions of fluid, basaltic lava. The take on the appearance of shield with the convex side facing upward. The Hawaiian Islands are an example of shield volcanoes.
Cinder Cone Cinder cones are constructed from the deposition of cinders and other pyroclastic material. Tend to be smaller in height than stratovolcanoes and have an asymetric cone.
Lava Dome http://en.wikipedia.org/wiki/Lava_dome
Kinds of Eruptions http://videos.howstuffworks.com/howstuffworks/231-how-volcanoes- work-video.htm (How volcanoes work 3:03) http://library.thinkquest.org/17457/volcanoes/legend.php http://videos.howstuffworks.com/howstuffworks/231-how-volcanoes- work-video.htm http://library.thinkquest.org/17457/volcanoes/legend.php
Volcanic Hazards Lava Flows 3 Major Types of Lava Flow aa, pahoehoe, and pillow lava good pictures at Wikipedia http://library.thinkquest.org/17457/volcanoes/hazards.lavaflow.php http://library.thinkquest.org/17457/volcanoes/hazards.lavaflow.php
Volcanic Hazards - Lahar Lahar mudflow of volcanic ash and dust created when pyroclastic material is mobilized by melting snow or rain. An extremely dangerous environmental hazard. http://www.uwsp.edu/geo/faculty/ritter/glossary/Default.htm Excellent site – GLOSSARY with Pictures
Seismograms and Characteristics of P, S, and Love Waves You should know which of the waves is the fastest, how the waves travels, which is considered body vs. surface waves, and HOW to determine the epicenter! http://www.seismo.unr.edu/ftp/pub/louie/class/100/seismic-waves.html http://www.scarborough.k12.me.us/wis/teachers/dtewhey/webquest/nature/sei smic_waves.htmhttp://www.scarborough.k12.me.us/wis/teachers/dtewhey/webquest/nature/sei smic_waves.htm (Especially Seismic Images) http://www.youtube.com/watch?v=7EgxHf0PMRU&feature=player_embedded (Primary, Secondary, and Surface Waves)
Determine the Epicenter http://regentsprep.org/regents/ earthsci/eqwaves.htm Good starting site! http://regentsprep.org/Rege nts/core/questions/question. cfm?Course=ESCI&TopicCo de=05&QNum=1&Wrong=0http://regentsprep.org/Rege nts/core/questions/question. cfm?Course=ESCI&TopicCo de=05&QNum=1&Wrong=0 - Practice Questions http://nemo.sciencecoursew are.org/VirtualEarthquake/http://nemo.sciencecoursew are.org/VirtualEarthquake/ - MUST DO!
Earth’s Interior Be able to name the various layers Why the layers are important? Where are the layers found?
Moho Layer (Where and) Why is this layer important? The boundary where Earth's crust meets Earth's upper mantle (approximately 31 mi/50 km below the surface), and where seismic waves travel at a different and more rapid rate than the crust or mantle.
Faults http://facweb.bhc.edu/academics/science/harwoodr/GE OL101/study/structur.htm Very good site with a lot of good pictures http://facweb.bhc.edu/academics/science/harwoodr/GE OL101/study/structur.htm
Measuring Ground Movement Mercalli Scale vs. Richter Scale Intensity should not be confused with magnitude http://earthquake.usgs.gov/learning/topics/richter.php http://www.seismo.unr.edu/ftp/pub/louie/class/100/mercalli.html http://www.seismo.unr.edu/ftp/pub/louie/class/100/mercalli.html (Mercalli Scale) http://www.seismo.unr.edu/ftp/pub/louie/class/100/mercalli.html (Richter Scale)
Interpret Isoseismic Lines http://www.csulb.edu/~ro drigue/geog458558/labs/i soseism.html Reinforces the difference between Richter Scale and Mercalli Scale and how to make and read isoseismal map http://www.csulb.edu/~ro drigue/geog458558/labs/i soseism.html
Climate Change as related to volcanic activity http://www.cotf.edu/ete/modules/volcanoes/vclimate.html You should be able to understand the short term and long term effects. What gases are released and why are these gases important to the weather/climate? What level of the atmosphere does gases affected the climate? What is the “Year without a Summer”? For help, you should be able to ask last year’s Meteorology team members. http://www.cotf.edu/ete/modules/volcanoes/vclimate.html
Topographic Map http://regentsprep.org/Regents/earthsci/units/mapping/top ographic.cfm - Good background http://www.cs.nmsu.edu/~jbj/index_auxil/idaho_virtual_ca mpus/topo_profiles.htm - Creating topographic profile http://www.geo.ua.edu/geowall/downloads/contour- student_guide.pdf - Topography and contouring (a good homework assignment – also great for ROAD SCHOLAR) http://egsc.usgs.gov/isb/pubs/booklets/symbols/ - also great for ROAD SCHOLAR http://regentsprep.org/Regents/earthsci/units/mapping/top ographic.cfm http://www.cs.nmsu.edu/~jbj/index_auxil/idaho_virtual_ca mpus/topo_profiles.htm http://www.geo.ua.edu/geowall/downloads/contour- student_guide.pdf http://egsc.usgs.gov/isb/pubs/booklets/symbols/
Plate Tectonics Plate tectonics is the geophysical theory in which the earth's crust is broken into huge plates that move about laterally and vertically. The interaction of lithospheric plates creates second order relief features of the earth, e.g. mountain chains, deep valleys. lithospheric plates
Plate Boundaries (1) Convergent, (2) Divergent and (3) Transform Begins with slide no. 17 http://www.sci.csuhayward.edu/~lstrayer/geol2101/2101_Ch19_03.pdf (excellent site, must see!) http://www.indiana.edu/~g103/G103/week11/week11.htm http://www.sci.csuhayward.edu/~lstrayer/geol2101/2101_Ch19_03.pdf http://www.indiana.edu/~g103/G103/week11/week11.htm
Plate Boundaries http://www.scarborough.k12.me.us/wis/teachers/dtewhey/webquest/nature/p late%20boundaries.htm http://www.scarborough.k12.me.us/wis/teachers/dtewhey/webquest/nature/p late%20boundaries.htm Cross sectional Model of a plate boundary
Features of Various Plate Boundaries http://www.indiana.edu/~g103/G103/week11/week11.htm
Should know what type of plate, why it is important, and what is occurring along the Ring of Fire
Evidence of Continental Drift (1) Fit of the Continents (2) Fossil Evidence (3) Rock Type and Structural Similarities (4) Paleoclimatic Evidence http://www.sci.csuhayward.edu/~lstrayer/geol2101/2101_Ch19_03.pdf http://www.sci.csuhayward.edu/~lstrayer/geol2101/2101_Ch19_03.pdf
Evidence of Sea Floor Spreading http://www.sci.csuhayward.edu/~lstrayer/geol2101/2101_Ch19_03.pdf Nice Videos (Sea Floor Spreading 1:11, Mid Atlantic Ridge :57) http://videos.howstuffworks.com/science-channel/29268-100-greatest- discoveries-sea-floor-spreading-video.htm A lot of videos other good stuff…just need to look around http://video.yahoo.com/watch/1595570/5390151 Bill Nye’s Sea Floor Spreading for the Discovery Channel http://www.sci.csuhayward.edu/~lstrayer/geol2101/2101_Ch19_03.pdf http://videos.howstuffworks.com/science-channel/29268-100-greatest- discoveries-sea-floor-spreading-video.htm http://video.yahoo.com/watch/1595570/5390151
Sea-floor spreading occurs where oceanic plates are diverging from one another. Magma rises along a rift zone and spreads out at the surface building new sea floor. As a result, the age of the rocks increases as one moves away from the rift zone. The mid- oceanic ridge is the primary site for sea-floor spreading. Earthquakes and volcanoes are where sea floor spreading is occurring.
Magnetic stripes record the magnetic polarization of iron- bearing rocks from a magnetometer. Deciphering magnetic stripes was one of the pieces of evidence to support the theory of sea floor spreading and plate tectonics.sea floor spreadingplate tectonics