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D.R.R.R
Reviewer for semi-final exam
| Question | Answer |
|---|---|
| Product of the quiet effusion of molten rock or magma beneath a volcano | Lava Flow |
| Extremely low in speed and seldom cause of deaths directly. | Lava Flow |
| Forms when the dome that forms from the piling up of lava flows hear the vent collapses. | Pyroclastic flow |
| Magma and lava that comes from volcanoes in Hawaii are called? | Hot spot |
| Volcanoes are formed when plate dives under another plate | Subduction zones |
| What fragments thus the explosive eruptions cause? | Tephra |
| What quiet eruptions creates? | Lavas |
| The most easily identifiable volcanic deposits? | Lava flows |
| What affects the way lava flows and its speed? | The composition |
| It is the fastest flowing lava because of it's low viscosity. | Basaltic lava |
| Basaltic lava styles? | Pahoehoe and A'a |
| Composed of thin flows with smooth surface that sometimes feature ropy folds. | Pahoehoe |
| It has sharp, spiny surfaces. | A'a |
| It has small volume and typically associated with stratovolcanoes and commonly forms lava domes. It is slow by lava flow standards. | Andesitic Lava |
| It have higher viscosity, which is why these are a lot slower than andesitic and basaltic lava flows. | Rhyolitic Lava |
| Other types of lava | Sheet lava and Pillow lava |
| This are thicker than pahoehoe and have surface texture | Sheet lava |
| Pillow-shaped rocks formed by the sudden cooling of lava that is deposited underwater | Pillow Lava |
| What makes the volcanic eruption work? | Gas |
| It expand enormously when magma rises to the Earth's surface and erupts. | Volcanic Gas |
| The most abundant volcanic gas released into atmosphere. | Water Vapor H20 |
| Other volcanic gases | CO2, SO2, N, H, CO, S, Ar, Cl, F |
| Abundant in the atmosphere and natural product of respiration | Carbon Dioxide |
| Colorless and odorless gas. | Carbon Monoxide |
| Colorless gas with strong odor. | Sulfur dioxide |
| The release of SO2 gas during an eruption can produce volcanic smog called? | Vog |
| SO2 + O + Water and sunlight | Haze and smog |
| Hot mixtures of fresh lava, gas, rock, pumice and ash that move down the sides of a volcanic crater at high speeds during an eruption. | Pyroclastic flow |
| Types of Pyroclastic flow | -Merapi type, Pelean type and Soufriere type |
| The mechanism that produce nuee ardente from the collapse of a dome | Merapi type of pyroclastic flow |
| Nuee ardente deposits of block and ash are also generated by dome collapse | Pelean type |
| It involves the collapse of a dome | Soufriere type |
| Effects of Pyroclastic Flow | Burn, Impact and Burial, Inhalation of gases, and Lahars and flooding. |
| Volcanic rock and lava materials that are ejected into the air by explosions or carried upward by the eruption column's hot gases or lava fountains. | Tephra Falls |
| Special kind of tephra |
Created by:
Berlinda
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