rest are new. Mount St. Helen Volcanic eruptions in populated regions are a significant threat to people‚ property‚ and agriculture. The danger is mostly from fast-moving‚ hot flows of explosively erupted materials‚ falling ash‚ and highly destructive lava flows and volcanic debris flows. In addition‚ explosive eruptions‚ even from volcanoes in unpopulated regions‚ can eject ash high into the atmosphere‚ creating drifting volcanic ash clouds that pose a serious hazard to airplanes. II. Volcano Formation
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subjectiveness of human behaviour - individual realism and personality. Mix society with the individual then add a third ingredient - power (political‚ economic‚ etc) and you end up with a chameleonic and metamorphosis-like result‚ what I refer to as the ’lava lamp effect ’ - constant change‚ confusion‚ tangentiality‚ shifts in personal‚ political and societal values and meanings. Theory is the vehicle of bringing order and making sense of all these things. That an individual on one occasion might respond
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metal odor no odor no odor Solubility or Reaction Effect of Heat blackened Cold H2O Hot H2O Litmus Test Dilute HCl Dilute NaOH no apparent reaction no change no change slight . bubbling Mg inc. bubbling blue changed warmed gassed to purple bubbled no change warming bubbling silver white moss green bright blue white no odor no odor no blue turned no no apparent apparent change purple change change no no change no no change in color change change complete red litmus
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Observations Data Table 1: Reactions Expected Question # / Well # Chemicals Reaction 1- A1 NaHCO3 and HCI - C02 Bubbling. Color unchanged. 2- B1 HCI and BTB Golden yellow color change. 3- C12 NH3 and BTB Bubbling. Blue color change. 4- D1 HCI and blue dye Cloudy. Green color change. 5- E1 Blue dye and NaOCI Initially blue‚ then yellow and bubbling. 6- F1 KI and Pb(NO3)2 Yellow color change. Fizzing then opaque precipitate. 7- H1 NaOH and phenolphthalein Cloudy. 8- G1
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of highly viscous lavas. They are sometimes formed within the crater of a previous volcanic eruption (as in Mount Saint Helens)‚ but can also form independently‚ as in the case of Lassen Peak. Like stratovolcanoes‚ they can produce violent‚ explosive eruptions‚ but their lavas generally do not flow far from the originating vent. Cryptodomes Cryptodomes are formed when viscous lava forces its way up and causes a bulge. The 1980 eruption of Mount St. Helens was an example. Lava was under great pressure
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Mauna Loa: The Fiery Mountain Mauna Loa is Earth ’s largest volcano and most massive mountain as it takes up nearly half of the flourishing landscape of the island of Hawai ’i. This island is actually made up of five volcanoes‚ Kohala‚ Mauna Kea‚ Hualalai‚ Mauna Loa‚ and Kilauea‚ all in such close proximity that they fused together to form one whole island. Mauna Loa is located in the south central area of Hawai ’i‚ in the Hawai ’i Volcanoes National Park and its coordinates are 19°5 ’ N‚ 155°6
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explosive eruptions sometimes with minor lava flows‚ usually from one or more of the three main summit craters 2. Flank vents with higher lava flow rates – these are less frequently active and originate from fissures that open down from the summit 2001 eruption causes: complex flank eruption where all four summit craters produced spectacular and powerful activity‚ ranging from mild‚ persistent‚ slow (strombolian) activity‚ to high-energy explosive episodes. Lava flowed from all four summit craters as
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form of lava (most commonly molten basalt) is potential of shaping different landforms on earth crust. The most common landforms that are results of volcanic activity include cones‚ craters‚ calderas‚ domes etc. This article gives a description of these volcanic landforms. SHIELD VOLCANOES- These are characterised by gentle upper slopes. The slope varies from only 5 degrees to 10 degrees. The shield volcanoes are made up of mainly thin lava flows around central vent. The low viscosity lava (low silica
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completely different Kilauea is almost constantly flowing and has virtually no explosions at all it also has low viscosity lava flows running from it constantly where as MT st Helens is completely different in MT st Helens most devastating eruption in 1980 There was a huge explosion and pyroclastic flows down the side of the mountain and high viscosity lava because there are now lava flows. Another difference between the two volcanoes is the size and shape of the volcanoes Kilauea is the worlds largest
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California to Canada. It is a composite volcano‚ which has steep sides that are formed by alternating layers of lava flow‚ and pyroclastic material made up of ash and other debris. These types of volcanoes have a tendency to have very explosive eruptions and pose a great many problems for people and animals nearby1. This is in contrast to the volcanoes found in Hawaii which have slow flowing lava eruptions and few if any massive explosions. Mount St. Helens is formed by a subduction zone where the Juan
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