Term
| AS ocean crust is subducted what plays a key role in forming magma at depth? |
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Definition
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Term
| Which type of plate boundary would have no volcanic activity? |
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Definition
| transform plate boundaries |
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Term
| Global climate can be changes by volcanoes that emit large quantities of |
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Definition
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Term
| What might provide evidence of an ancient "super-volcano" eruption? |
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Definition
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Term
| If a super volcano erupted the earth would become |
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Definition
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Term
| Mauna Loa on the island of Hawaii would be referred to as a.... |
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Definition
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Term
| Subduction zones generate this type of magma and crust? |
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Definition
| rhyolite magma and continental crust |
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Term
| Which would be the least common type of activity in continental arc volcanoes? |
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Definition
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Term
| Which of the following statements is true about explosive volcanic eruptions? |
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Definition
| they produce large amounts of ash products |
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Term
| Which composition would have the highest silica content? |
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Definition
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Term
| Which composition would be more likely to form a lava dome? |
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Definition
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Term
| Which composition would likely form a shield volcano? |
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Definition
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Term
| Which composition would have the highest temperature of eruption? |
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Definition
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Term
| Which composition would not usually be associated with mudflows? |
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Definition
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Term
| Which composition would have the lowest viscosity? |
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Definition
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Term
| Which composition would be the least explosive? |
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Definition
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Term
| Which composition would be found in the Andes Mountains |
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Definition
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Term
| Which composition would make the darkest color rocks? |
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Definition
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Term
| Which composition would be characteristic of Kilauea volcano on Hawaii |
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Definition
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Term
| Which composition would be characteristic of Mt St Helens in Washington |
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Definition
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Term
| The largest eruption in the last 1 million years occured in.... |
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Definition
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Term
| Which of the following places would be a location of a supervolcano |
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Definition
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Term
| Explosives of a volcano increases with an increase in.... |
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Definition
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Term
| When a volcanic cone collapses into its magma reservoir it forms a..... |
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Definition
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Term
| Melting of snow or glacial ice on tall volcanoes, such as mount rainier, can generate |
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Definition
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Term
| Which of the following is NOT true about pyroclastic flows? |
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Definition
| they are also called debris flows and can travel extremely long distances |
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Term
| Which of the following describes the eruption of Mt. St Helens in 1980? |
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Definition
| a small volume ash-rich eruption |
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Term
| Which of the following is hazardous to people living ~50 km from a strato-volcano? |
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Definition
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Term
| Where in the world would most expect to see a lava lake? |
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Definition
| Kilauea on the Big Island of Hawaii |
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Term
| Maurice and Kattia Kraft, the famous volcano observers, died where and how? |
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Definition
| on Mt Unzen in Japan by a pyroclastic flow |
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Term
| Which of the following would help predict the timing of an eruption the most precisely? |
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Definition
| the location and frequency of earthquakes |
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Term
| Which of the following shapes would result from the most violent volcanic eruption? |
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Definition
| a caldera collapse structure that is 20 kilometers across and 5000 feet high |
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Term
| Which of the following is absolutely required for all mass wasting types? |
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Definition
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Term
| What do all long-runout landslides have in common besides the distance they travel? |
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Definition
| an exceptionally large mass of material |
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Term
| How would a giant landslide into the ocean from Mauna Loa volcano kill the most people? |
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Definition
| an exceptionally large tsunami |
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Term
| What conditions would generate very thick soil layers and thus unstable slopes? |
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Definition
| hot conditions with high annual rainfall |
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Term
| What best describes the movement of a rotational landslide? |
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Definition
| a mass slumps due to movement along a curved slip surface. |
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Term
| This type of mass movement always requires water |
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Definition
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Term
| What would be general characteristic of the rocks that contributes to a translational slide? |
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Definition
| dipping layers or structures |
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Term
| Which of the following would make a slope more stable usually? |
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Definition
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Term
| What is the typical run-out distance for non-fluidized mass movements? |
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Definition
| a run-out distance is usually equal to the vertical fall (1X) |
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Term
| Which of the following slopes would be least stable? |
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Definition
| steep, saturated, clay and sand |
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Term
| Tsunami means ________in Japanese and most are formed by______ |
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Definition
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Term
| What occurs as a tsunami wave approaches the edge of a land mass? |
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Definition
| the wavelength decreases, velocity decreases, height increases |
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Term
| Which of the following is true based on observations of tsunami? |
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Definition
| tsunami can be devastating on all sides of an island. |
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Term
| The destructive powers of tsunami results mainly from their... |
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Definition
| momentum and long wavelength |
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Term
| Which area on a coastline would likely be hit the hardest by tsunami waves? |
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Definition
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Term
| What best describes the number of waves associated with a tsunami? |
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Definition
| a tsunami is often 4 or more |
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Term
| Which is the following does NOT describe tsunami? |
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Definition
| they are produced by gravity from the Moon and Sun |
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Term
| Which event produces the biggest tsunami? |
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Definition
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