10 Geology
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23 terms
Terms | Definitions |
|---|---|
 dyke | passageway for magma up thru' volcano |
| vent | exit point for magma in volcano |
| crater | basin around vent in volcano |
| White Is | active andesitic cone e.g. |
| Rangitoto | basaltic shield-shape e.g. |
| Taupo | big rhyolitic caldera e.g. |
| limestone | seabed sediments from coral/shells |
| viscosity | affects the shape of volcanoes |
| uplift | moves shells up mountains |
| folds | layers following the same curves |
| roto | Maori for lake |
| wai | Maori for water |
| manga | Maori for stream |
| puke | Maori for hill |
| motu | Maori for island |
| focus | if shallow, major damage |
| Richter | scale of earthquake strength |
| V-shape | erosion by water |
| U-shape | erosion by ice |
| tilting | strata are no longer horizontal |
| plate boundaries | seismically active locations |
| sediments | weathered particles eroded away |
| obsidian | black volcanic glass |
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