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Rocks are aggregates of one of more minerals.
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| Igneous rocks are classified on the basis of their mineral composition and |
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| When a metamorphic rock exhibits a layered or banded appearance it is said to exhibit a ____________ texture |
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| The rock produced by the metamorphism of limestone is |
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| the process of metamorphism involves |
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| the transformation of pre-existing rock |
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| which one of the following statements is true concering primary waves |
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Definition
| travels faster than s waves |
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| the amount of destruction caused by earthquake vibrations is affected by: |
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Definition
the design of structures
the intensity and duration of the vibrations
the nature of the surface material |
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| major earthquakes are often followed by somewhat smaller events known as |
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| the instrument that records earthquake events is a |
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| a massive, concordant lens-shaped mass emplaced in a near-surface environment is termed |
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normal faults indicate compressional forces are at work while reverse faults result from tensional forces
T or F |
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| when a rock is able to return to its shape after it has deformed it is said to have experienced |
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Definition
| is a break where no movement has yet occured |
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| once the elastic limit of a rock is surpassed |
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Definition
(all of the above)
the rock may rupture
the rock may deform plastically
an earthquake may occur |
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| The Great Rift Valley of East Africa is an excellent example of |
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| If erosion stripped the top off a dome one would find: |
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Definition
| the oldest rocks were exposed at the center |
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The Himalaya Mountains are thought to have resulted from a continental collision
T or F |
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| Linear upfolded structures with the oldest strata in the center are termed |
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| the San Andreas fault is an example of a |
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| The App Mts are thought to be the result of: |
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| a continental collision between Europe and N.America |
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| The mechanism by which rocks store and eventually relase enery in the form of an earthquake is called |
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| considering its distance from the source of the september 19th earthquake, Mexico city was damaged more than might be expected because |
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Definition
| the unconsolidated sediments on which the city was built intensified the vibrations |
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the main island of hawaii is the youngest of the hawaiian islands
t or f |
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Definition
| is the name of the supercontinent |
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| new oceanic crust forms at |
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Definition
| divergent plate boundaries |
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| plates slide past one another at: |
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Definition
| transform fault boundaries |
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| the red sea was formed along a |
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Definition
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| mount saint helens is associated with a |
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Definition
| convergent boundary (oceanic-continental) |
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| the san andreas fault exemplifies this type of plate boundary |
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| the continent fit together best in the Pangaea configuration when: |
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Definition
| the outer edges of the continental shelves are matched |
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| the island of hawaii experiences volcanism because it is located: |
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| a lava flow with a surface of a rough jagged blocks and sharp angular projections is termed __________ lava |
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Definition
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the volcanic eruptions on the island of Hawaii may be described as relatively quiet when compared to eruptions such as occured at Mount St Helens
T or F |
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| Kilauea is an example of a |
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| Kilimanjaro, Mayon, St. Helens, Ranier, ect are examples of a |
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Crater Lake occupies a caldera
T or F |
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| The Cascade Range in the western United States is associated with |
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Definition
| subduction zone volcanism |
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| Magma tends to rise toward the earth's surface principally because |
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Definition
| rocks become less dense when they melt |
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| the largest intrusive body is called |
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Definition
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| which one of the following intrusive structures is tabular and concordant? |
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