surface. Extrusive: Igneous rock that forms at the Earth Surface. Felsic: Igneous rock rich in potassium feldspar and quartz and light color. Mafic: Igneous rocks that are rich in dark Plagioclase feldspar‚ pyroxene and that are dark in their color. Lava: Magma that reaches Earth surface. Texture: The feel of a rock due to its size‚ shape and its arrangement of mineral crystal or sediment in a rock. Porphyry: Igneous rock containing coarse crystals in a finer grained groundmass
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Pressure- results from a force pushing on an area Crust-contains land and ocean floor (50-70 km); solid Mantle-2867 km; solid Lithosphere-crust and uppermost part of the mantle; solid Asthenosphere-soft layer within the mantle Outer core-2‚266 km; liquid Inner core-1‚216 km; solid Pangaea-“super continent”‚ when all continents were connected Subduction-when one continental plate slides under another‚ at a deep-ocean trench Deep-ocean trench-a place in the ocean where subduction occurs Mid-ocean
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magma to rise and come out together with gas‚ rocks and ashes. Violence of an eruption depends on how much pressure the volcano is under before it erupts. (How do volcano erupt) “In a volcanic eruption‚ hot lava spews out from beneath the Earth’s crust up to the Earth’s surface.” The hot lava spewed out is actually magma‚ hot melted rock. (Why do volcanoes erupt) “Sometimes the magma chamber breaks its sides and only reaches to the flank or summit of volcano and sometimes reaches to the surface causing
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A hazard is a situation that poses a level of threat to life‚ health‚ property‚ or environment. There is a very big difference that helps prepare for a volcanic hazard and that is whether you are in a MEDC or a LEDC. In a MEDC monitoring volcanic zones and potential hazards is an option many LEDC’s don’t have. In Italy at Mt Etna they have Geochemical monitoring programs currently run by INGV which focus on the analysis of temporal changes‚ chemical changes and seismic activity. This option open
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out.” (Carson 63) Silica is actually a compound white in color. Geryon’s emphasis on the lack of silica lets us interpret that he has very little life left after being rejected. In the autobiography‚ Geryon is particularly interested in the story of Lava Man‚ who defies death by surviving a volcanic eruption. He is described by Herakles grandmother: “I am a drop of gold he would say I am molten matter returned from the core of earth to tell you interior things- Look! He would prick his thumb and press
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cinder and complex (compound) volcanoes. One type of volcano is‚ Etna this volcano is also entitled a “strato volcano” it produces violent activity including lots of ash‚ lava and gas which causes danger to the population around any slopes nearby. Etna’s type of magma is high in silica when it occurs it’s accompanied by other large lava flows. 5. Deaths: Mayon (2006) Injuries: merapi (2010) Damage: merapi (2010) highest of 4 (extreme) 6. Yes‚ I did find a relation between these volcano effects
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her and whimpered "go away dad" She then looked behind her and screamed as a dark ash hand grabbed her. Balboa then thought to himself I should probably go and apologize to her. So he then walked out of his cave in Mount Olympus. He then saw ash and lava surrounding one of Kina’s creatures‚ cricket. Balboa thought Hephaestus must have taken Kina. He walks in a slow pace back and forth wondering why Hephaestus would want Kina and then remembered that he and Zeus had banished his son Magum for destroying
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ENDOGENETIC PROCESS: The Endogenetic processes are the processes that shape the land by forces coming from within the earth (Endogenetic forces). There are 3 main Endogenetic processes: folding‚ faulting and volcanism. They take place mainly along the plate boundaries‚ which are the zones that lay on the edges of plates. These zones are weak. Endogenetic processes cause many major landform features. MOVEMENTS: The forces coming from within the earth cause two types of movements in the earth.
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properties of air allow for larger eruptions than those that occur underwater (Mitchell 444). Pressure on the ocean floor does not allow water or gasses to escape from lava. This causes the eruption to have less of an impact underwater than it would if it were on land. Water’s ability to hold heat aids in cooling the erupting lava quicker than it would when exposed to the air (Mitchell 444). This article is important in order to further research by geologists and oceanographers‚ making this an interdisciplinary
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Socially the town of Zafferana Etnea was threatened by the largest volume of lava in hundreds of years‚ this can also be seen as an economic impact. In 2002 a huge column of ash was thrown up from the biggest eruption in recent years and was deposited as far away as Libya. Seismic activity associated with these eruptions caused the eastern flanks of the volcano to slip by 2m‚ causing structural damage to many houses. Lava flows completely destroyed the tourist station at piano Provenzana and part
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