IVc Living with volcanoes - Living dangerously Earthquakes volcanoes 8loods and landslides Can we really predict earthquakes What to do before during

IVc Living with volcanoes - Living dangerously Earthquakes...

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Living dangerously: Earthquakes, volcanoes, 8loods, and landslides upload.wikimedia.org/wikipedia/commons/8/81/Mt.Mayon_tam3rd.jpg Can we really predict earthquakes? What to do before, during, and after an earthquake Coastal erosion Flooding: Causes, consequences, and control Mass wasting B.D. Payot | Geology 1 Our Dynamic Earth Living dangerously: Earthquakes, volcanoes, floods, and landslides Magmatism formation of igneous rocks from magma Plutonism intrusive igneous rock crystallizes from magma and slowly cools below the surface of the Earth Volcanism includes all phenomena resulting from and causing magma within the crust or mantle of a planet to rise through the crust and form volcanic rocks on the surface IGNEOUS PROCESSES
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B.D. Payot | Geology 1 Our Dynamic Earth Living dangerously: Earthquakes, volcanoes, floods, and landslides MAGMATISM Magma silicate melt (dominated by SiO 2 ) magma rises to the crust, ponds, and reaches the surface forming volcanoes B.D. Payot | Geology 1 Our Dynamic Earth Living dangerously: Earthquakes, volcanoes, floods, and landslides MAGMATISM Formation of magmas by partial melting of rocks through heating and fluxing with water e.g., subduction zones by decompression e.g., mid-oceanic ridges
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B.D. Payot | Geology 1 Our Dynamic Earth Living dangerously: Earthquakes, volcanoes, floods, and landslides Volcanic eruptions Governed largely by the physical and chemical characteristics of the erupting magma Pyroclastic materials e.g. volcanic dust, volcanic ash, lapilli, scoria, bombs, blocks aroundthephilippines.com/wp-content/uploads/2011/05/Mayon_Volcano_Eruption_2.jpg volcanoes.usgs.gov/Imgs/Gif/Drawings/RockClassif-A.gif B.D. Payot | Geology 1 Our Dynamic Earth Living dangerously: Earthquakes, volcanoes, floods, and landslides VOLCANISM Types of volcanic eruptions Non-explosive/effusive lava flows, spatter cones, lava fountains, flood basalt Explosive pyroclastic rocks or fragmental rocks, ash fall, pyroclastic flows, debris avalanches, pyroclastic surges, lahars
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B.D. Payot | Geology 1 Our Dynamic Earth Living dangerously: Earthquakes, volcanoes, floods, and landslides aroundthephilippines.com/wp-content/uploads/2011/05/Mayon_Volcano_Eruption_2.jpg Types of volcanic eruptions gas release under decompression arise from interactions between water and magma driven by the expansion of steam VOLCANISM B.D. Payot | Geology 1 Our Dynamic Earth Living dangerously: Earthquakes, volcanoes, floods, and landslides media-3.web.britannica.com/eb-media/48/4948-004-9AC9A872.jpg VOLCANIC ERUPTIONS: MAGMATIC
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B.D. Payot | Geology 1 Our Dynamic Earth Living dangerously: Earthquakes, volcanoes, floods, and landslides Hawaiian type - lava flows from the vent in a relative gentle, low level eruption (effusive) - basaltic lavas: low viscosity, low content of gases, and high temperature at the vent - very little amount of ash upload.wikimedia.org/wikipedia/commons/a/a4/Eruption_1954_Kilauea_Volcano.jpg 1954 K ī lauea, USA (HI) VOLCANIC ERUPTIONS: MAGMATIC B.D. Payot | Geology 1 Our Dynamic Earth Living dangerously: Earthquakes, volcanoes, floods, and landslides
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