VOLCANOES. Homework due Wed./Thurs. I have a few copies left, or get by moodle or webpage
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1 VOLCANOES Homework due Wed./Thurs. I have a few copies left, or get by moodle or webpage
2 Bowen s Reaction Series
3 Oceanic basin tectonics
4 Icelandic Rift ts/0829_09_iceland.jpg
5 Convergent plate boundary
6 Fujiyama
7 Tectonics of Magma Basaltic magma From partial melting of mantle Occurs at oceanic ridges and mantle plumes More dense: makes oceanic crust Granitic magma From melting of crust, with water as flux Occurs at convergent boundaries Less dense: makes continental crust
8 Low viscosity lava
9 Pahoehoe
10 AA
11 Kilauea
12 Mt St Helens Before
13 Ash of Mt St Helens
14 Kilauea spatter cone
15 Volcanic bombs
16 bomb
17 Terms Viscosity: resistance to flow Pyroclastic: material blown into the air by volcanic eruption What is the relationship of lava viscosity to pyroclastic production by a volcano? Greater viscosity=more likely to have pyroclastic material
18 Lava character Volcanic gas information below
19 Volcanic gas composition Kilauea Summit Hot Spot 1170 C CO H2 H2S S02 HCl H20 C02
20 Volcanic gas composition Erta` Ale Divergent Plate 1130 C CO H2S S02 C02 H2 HCl H20
21 Volcanic gas composition Momotombo Convergent Plate 820 C C02 S02 H2 CO H2S HCl H20
22 Shield volcano
23 Pahoehoe
24 Pahoehoe
25 AA
26 A'a
27 Active Lava Tube
28 Kilauea Caldera
29 Shield volcano
30 Hawaii
31 Mt St Helens
32 MtStHelens
33 Ash of Mt. St. Helens
34 Ash progression map of May 18, 1980 eruption of Mt. St. Helens
35 Ash Bed
36 Welded tuff
37 Composite cone
38 Blasted summit of Mt. St. Helens
39 Whaleback dome in Mt. St. Helens
40 Mt Meager, British Columbia, Canada
41 Glass cliff of Mt Meager eruption 2500 ybp
42 Pumice lapilli of Mt. Meager Pumice deposit of Mt. Meager
43 Mt Hood
44 Cascade Volcano eruptions
45 Fujiyama
46 Ring of fire
47 Nuee Ardente
48 St. Pierre Harbor,
49 how_volcanoes_work/pelee.html Martinique
50 Martinique Video of nuee ardente:
51 St Helens Blast Zone
52 Lahar Mt St Helens
53 Lahar Link to Nevado del Ruiz
54 St Helens Deposits
55 Rainier Lahars
56 Paricutin
57 Ash from Paricutin
58 Parícutin
59 Cinder cone
60 Cinder cones
61 San Juan Parangaricutiro
62 Mt Etna
63 Volcanic features Fissure Pipe Vent Opening at summit may be crater or caldera
64 Aspects of volcano types
65 Crater Lake
66 Caldera initial stage
67 Caldera final stage
68 Collapse caldera formation Like Crater Lake
69 Kilauea Caldera
70 Kilauea Caldera Stage 1
71 Kilauea Caldera Stage 2
72 Kilauea Caldera Stage 3
73 Valles Grande
74 Curtain of fire
75 Lava fountain from fissure
76 Flood basalt
77 Flood basalt
78 Flood basalt
79 Deccan basalt
80 Shiprock
81 Volcanic summary
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