Igneous Rocks Magma • molten rock material consisting of liquid
... Basaltic, Basic or Mafic • very hot (900-1200°C) • very fluid • low SiO2 (silica) content (~50%) • mafic (magnesium and iron rich) minerals • volatile gases are low • produces “flowing” volcanoes: lava flows Silicic, Felsic, Acidic or Granitic • less than 850°C • highly viscous • high SiO2 content ( ...
... Basaltic, Basic or Mafic • very hot (900-1200°C) • very fluid • low SiO2 (silica) content (~50%) • mafic (magnesium and iron rich) minerals • volatile gases are low • produces “flowing” volcanoes: lava flows Silicic, Felsic, Acidic or Granitic • less than 850°C • highly viscous • high SiO2 content ( ...
Igneous Rocks - Crafton Hills College
... Basaltic, Basic or Mafic • very hot (900-1200°C) • very fluid • low SiO2 (silica) content (~50%) • mafic (magnesium and iron rich) minerals • volatile gases are low • produces “flowing” volcanoes: lava flows Silicic, Felsic, Acidic or Granitic • less than 850°C • highly viscous • high SiO2 content ( ...
... Basaltic, Basic or Mafic • very hot (900-1200°C) • very fluid • low SiO2 (silica) content (~50%) • mafic (magnesium and iron rich) minerals • volatile gases are low • produces “flowing” volcanoes: lava flows Silicic, Felsic, Acidic or Granitic • less than 850°C • highly viscous • high SiO2 content ( ...
Virtual Volcano Lab - www .alexandria .k12 .mn .us
... Global Perspectives (see the Menu on the left side) --Using the topic menu in the lower right corner, read about: 1) Tectonic Plates: Where are most of the active volcanoes found? __________________ 2) The Ring of Fire: Where is the Ring of Fire located? ___________________________ 3) The Layers Wit ...
... Global Perspectives (see the Menu on the left side) --Using the topic menu in the lower right corner, read about: 1) Tectonic Plates: Where are most of the active volcanoes found? __________________ 2) The Ring of Fire: Where is the Ring of Fire located? ___________________________ 3) The Layers Wit ...
volcanoes 1 - Earth Science Teachers` Association
... volcano such as a steep cone, a broad shield volcano, a caldera (large crater-like basin at the top). They could also add features such as woodland, river valleys or houses onto the slopes of the volcanoes or close by to see which areas may be most affected in the event of an eruption. Investigate t ...
... volcano such as a steep cone, a broad shield volcano, a caldera (large crater-like basin at the top). They could also add features such as woodland, river valleys or houses onto the slopes of the volcanoes or close by to see which areas may be most affected in the event of an eruption. Investigate t ...
Compared to the desolate surface of the Moon, Earth must
... Often solidified magma from past eruption When a volcano erupts, rapidly expanding gases carry small fragments of magma into the air, like champagne ...
... Often solidified magma from past eruption When a volcano erupts, rapidly expanding gases carry small fragments of magma into the air, like champagne ...
Types of Volcano
... composite volcanoes, their bases can stretch for hundreds of kilometres. They erupt frequently, with lava spilling out from many vents, and can erupt for long periods of time. The lava is very runny (basalt), with little ash. This spreads easily and cools to form the volcanoes’ sides. As the lava is ...
... composite volcanoes, their bases can stretch for hundreds of kilometres. They erupt frequently, with lava spilling out from many vents, and can erupt for long periods of time. The lava is very runny (basalt), with little ash. This spreads easily and cools to form the volcanoes’ sides. As the lava is ...
Volcano Project
... Geothermal Gradient of Earth’s layers (pg. 73, 199. 703 and chart) Source of the magma; where it originates from: (pg. 73, 703, 202, 203 and chart) Eruption History, VEI, active/dormant/extinct, environmental and human hazards/risks, 3. White board and diagram the volcano and its characteristi ...
... Geothermal Gradient of Earth’s layers (pg. 73, 199. 703 and chart) Source of the magma; where it originates from: (pg. 73, 703, 202, 203 and chart) Eruption History, VEI, active/dormant/extinct, environmental and human hazards/risks, 3. White board and diagram the volcano and its characteristi ...
Igneous Rocks and Volcanism
... And some rin uphill and down dale, Knapping the chucky stones to pieces wi’ hammers, Like sae mony roadmakers run daft – They say it is to see how the warld was made. - Sir Walter Raleigh ...
... And some rin uphill and down dale, Knapping the chucky stones to pieces wi’ hammers, Like sae mony roadmakers run daft – They say it is to see how the warld was made. - Sir Walter Raleigh ...
Volcanoes are classified as active or inactive
... green is rare, but does exist. When lava cools so quickly that it does not have time to crystallize, obsidian is formed. Andesite Like basalt, andesite (pronounced AN-deh-site) is composed of feldspar and pyroxene and is a fine-grained rock. However, andesite is usually light to medium gray in color ...
... green is rare, but does exist. When lava cools so quickly that it does not have time to crystallize, obsidian is formed. Andesite Like basalt, andesite (pronounced AN-deh-site) is composed of feldspar and pyroxene and is a fine-grained rock. However, andesite is usually light to medium gray in color ...
chapter 4 volcanoes
... green is rare, but does exist. When lava cools so quickly that it does not have time to crystallize, obsidian is formed. Andesite Like basalt, andesite (pronounced AN-deh-site) is composed of feldspar and pyroxene and is a fine-grained rock. However, andesite is usually light to medium gray in color ...
... green is rare, but does exist. When lava cools so quickly that it does not have time to crystallize, obsidian is formed. Andesite Like basalt, andesite (pronounced AN-deh-site) is composed of feldspar and pyroxene and is a fine-grained rock. However, andesite is usually light to medium gray in color ...
File
... the surface of the earth. When pressure builds up, eruptions occur. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments. Eruptions can cause lateral blasts, lava flows, hot ash flows, mudslides, avalanches, falling ash and floods. Volcano eruptions have bee ...
... the surface of the earth. When pressure builds up, eruptions occur. Gases and rock shoot up through the opening and spill over or fill the air with lava fragments. Eruptions can cause lateral blasts, lava flows, hot ash flows, mudslides, avalanches, falling ash and floods. Volcano eruptions have bee ...
Volcanoes
... Also known as pyroclastic rock fragments. There are many different possible sizes, from very small (volcanic ash or dust to much larger rocks (called volcanic bombs) ...
... Also known as pyroclastic rock fragments. There are many different possible sizes, from very small (volcanic ash or dust to much larger rocks (called volcanic bombs) ...
Presentation
... •Crater: funnel-shaped pit or depression at top of volcano •Caldera:craters whose walls have collapsed ...
... •Crater: funnel-shaped pit or depression at top of volcano •Caldera:craters whose walls have collapsed ...
The World of Volcanoes
... How do volcanoes form? • Continental plates and oceanic plates collide • Subduction occurs • Melted rock becomes magma that forces its way up between the plates • Savage Earth Animation #2 ...
... How do volcanoes form? • Continental plates and oceanic plates collide • Subduction occurs • Melted rock becomes magma that forces its way up between the plates • Savage Earth Animation #2 ...
Lassen Volcanic National Park
... theory of plate tectonics says the expanding oceanic crust is thrust beneath the continental plate margins. It penetrates deep into the Earth to be partly remelted. The result is magma (molten rock). These became the feeding chambers for volcanoes in Lassen Volcanic National Park. Lassen Volcanic Na ...
... theory of plate tectonics says the expanding oceanic crust is thrust beneath the continental plate margins. It penetrates deep into the Earth to be partly remelted. The result is magma (molten rock). These became the feeding chambers for volcanoes in Lassen Volcanic National Park. Lassen Volcanic Na ...
Take a `Chance` on the volcano erupting
... nearby. (Teachers may wish to invent a name for each town). Students should also be provided with an ‘Emergency’ card stating “Evacuate” and “Return to homes”. They can choose whether to play these cards at any point in the game. Now, ask the students to take turns to take a ‘Chance’ card from the p ...
... nearby. (Teachers may wish to invent a name for each town). Students should also be provided with an ‘Emergency’ card stating “Evacuate” and “Return to homes”. They can choose whether to play these cards at any point in the game. Now, ask the students to take turns to take a ‘Chance’ card from the p ...
3- How do volcanoes form at convergent boundaries?
... http://www.youtube.com/watch?v=Cvjwt9nnwXY pyroclastic flow ...
... http://www.youtube.com/watch?v=Cvjwt9nnwXY pyroclastic flow ...
File
... Climate.nasa.gov. “A blanket around the earth.“ Nasa.gov. GCC. February 3, 2013. March 9, 2015 Volcanoetips.com. “Volcano temperature setting basics.” volcanotips.com. Volcano Vaporizer. ...
... Climate.nasa.gov. “A blanket around the earth.“ Nasa.gov. GCC. February 3, 2013. March 9, 2015 Volcanoetips.com. “Volcano temperature setting basics.” volcanotips.com. Volcano Vaporizer. ...
volcanoes - Catawba County Schools
... Fire which includes the Andes and the Cascades (Mount St Helens, Mount Rainier) Stretches from the Aleutian Islands to Japan Nearly symmetrical with layers of both lava and pyroclastic materials Magma has andesitic composition Have a high silica content and very explosive eruptions ...
... Fire which includes the Andes and the Cascades (Mount St Helens, Mount Rainier) Stretches from the Aleutian Islands to Japan Nearly symmetrical with layers of both lava and pyroclastic materials Magma has andesitic composition Have a high silica content and very explosive eruptions ...
Exam 2 Review Sheet Handout Page
... 3) What is meant by mafic? Sialic or felsic? 4) What is Bowen’s Reaction Series? 5) What are the different igneous rocks and how does each relate to both texture and composition? Volcanism 1) What is meant by viscosity? How does it relate to magma composition and temperature? 2) How does viscosity r ...
... 3) What is meant by mafic? Sialic or felsic? 4) What is Bowen’s Reaction Series? 5) What are the different igneous rocks and how does each relate to both texture and composition? Volcanism 1) What is meant by viscosity? How does it relate to magma composition and temperature? 2) How does viscosity r ...
Seismic Tomography Imaging around Guntur Volcano in Indonesia
... Indonesia is located in the very active tectonic region which is influenced by four major tectonic plates. As a result, Indonesia has 127 active volcanoes and high seismicity activities. We conducted travel time tomography inversion to image seismic velocity structures (Vp, Vs, and Vp/Vs ratio) bene ...
... Indonesia is located in the very active tectonic region which is influenced by four major tectonic plates. As a result, Indonesia has 127 active volcanoes and high seismicity activities. We conducted travel time tomography inversion to image seismic velocity structures (Vp, Vs, and Vp/Vs ratio) bene ...
3 types of Volcanoes Reading
... are not very steep, shield volcanoes can be enormous. Hawaii’s Mauna Kea, the shield volcano shown here, is the largest mountain on Earth. Measured from its base on the sea floor, Mauna Kea is taller than Mount Everest, the tallest mountain on land. Cinder cone volcanoes are small volcanic cones mad ...
... are not very steep, shield volcanoes can be enormous. Hawaii’s Mauna Kea, the shield volcano shown here, is the largest mountain on Earth. Measured from its base on the sea floor, Mauna Kea is taller than Mount Everest, the tallest mountain on land. Cinder cone volcanoes are small volcanic cones mad ...
Assignment #22A - hrsbstaff.ednet.ns.ca
... occurred 6600 years ago - eruptions occurring over 30-40 million years (refer to page 80, figure 4.4 how Crater Lake formed) - series of volcanos in western USA Cascade Mountain Range (page 81, figure 4.5) fatalities due to volcanic eruptions = (page 82, figure 4.6) increased number of fatalities = ...
... occurred 6600 years ago - eruptions occurring over 30-40 million years (refer to page 80, figure 4.4 how Crater Lake formed) - series of volcanos in western USA Cascade Mountain Range (page 81, figure 4.5) fatalities due to volcanic eruptions = (page 82, figure 4.6) increased number of fatalities = ...
Volcanoes - PrinceBwis
... more easily because gas dissolved in the magma bubbles • When the lava is thick and sticky the gas continues to store increasing pressure – When the pressure becomes so great an explosion takes place when the gas pushes the magma out with incredible force ...
... more easily because gas dissolved in the magma bubbles • When the lava is thick and sticky the gas continues to store increasing pressure – When the pressure becomes so great an explosion takes place when the gas pushes the magma out with incredible force ...
Llullaillaco
Llullaillaco is a potentially active stratovolcano at the border of Argentina (Salta Province) and Chile. It lies in the Puna de Atacama, a region of very high volcanic peaks on a high plateau within the Atacama Desert, one of the driest places in the world. It is the fourth highest volcano in the world, and it is also the seventh highest mountain of the Andes.Llullaillaco follows the typical Puna de Atacama volcano pattern: it is surrounded by large debris fields and is perpetually capped by small snow patches, though there are no true glaciers due to the extreme aridity. The snow line in this region is the highest in the world, at around 6,500 metres (21,300 ft), which is around 1,000 metres (3,300 ft) higher than in the Himalayas and 2,000 metres (6,600 ft) higher than in the Andes of Colombia and Ecuador.The peak's name comes from the Aymara for ""murky water"": llulla= dirty and yacu= water. Other sources propose it to have originated from Quechua Lullac= lie, Yacu= water: ""lying (or treacherous) water"".It has been confirmed that Incas climbed Llullaillaco in the pre-Columbian period. Artifacts on the summit constitute the highest evidence of human presence worldwide before the late nineteenth century. Also, the huáqueros may have also reached its summit and those of other mountains in the region during their searches. The first recorded ascent was on December 1, 1952, by Bión González and Juan Harseim.