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| red fertile soils originated from weathering of the parana basalt |
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| resulted from lava flows when gondawana broke apart |
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| longest mountain range in the world |
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| region of steppe like plains in s argentina and chile. series of 13 steps or terraces. named by magellan |
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Can be divided into:
Northern Andes
Central Andes
Altiplano – Puna Bloc
Southern Andes |
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| very liquid lava flows very widespread, emitted from fractures |
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| liquid lava emitted from a central vent large sometimes has a collapse caldera |
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| explosive liquid lave small emitted from a central vent; it continued long enough may build up a shield volcano |
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| composite or stratovolcano |
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| more vicious lavas much explosive debris large emitted from a central vent |
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| very vicious lava relatively small can be explosive commonly occurs adjacent to craters of composite volcanoes |
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| very large composite volcano collapsed after an explosive pero=iod frequently associated with plug domes |
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