Volcanoes - Jefferson Township Public Schools
... Mafic - more fluid, gas easily escapes – lava pours out slowly ...
... Mafic - more fluid, gas easily escapes – lava pours out slowly ...
Volcanoes Guided Reading
... 7. What three things determine how thick or thin magma is? 8. What are the differences between pahoehoe and aa? What kind of eruption produces these types of lava? 9. Identify three hazards of volcanic eruptions. 10. Where do most volcanoes occur on Earth’s surface? 11. How can oceanic crust eventua ...
... 7. What three things determine how thick or thin magma is? 8. What are the differences between pahoehoe and aa? What kind of eruption produces these types of lava? 9. Identify three hazards of volcanic eruptions. 10. Where do most volcanoes occur on Earth’s surface? 11. How can oceanic crust eventua ...
Challenge and Extension - Effingham County Schools
... 8.2 Challenge and Extension BIG IDEA Mountains and volcanoes form as tectonic plates move. KEY CONCEPT Volcanoes form as molten rock erupts. Identify Volcano Types There are three main types of volcanoes: cinder cone, composite, and shield. Each type has certain characteristics that distinguish it f ...
... 8.2 Challenge and Extension BIG IDEA Mountains and volcanoes form as tectonic plates move. KEY CONCEPT Volcanoes form as molten rock erupts. Identify Volcano Types There are three main types of volcanoes: cinder cone, composite, and shield. Each type has certain characteristics that distinguish it f ...
Chapter 5 lesson 2
... a long tube through which magma moves from the magma chamber to Earth’s surface the opening through which molten rock and gas leave a volcano the area covered by lava as it pours out of a volcano’s vent a bowl shaped area that forms around a volcano’s central opening a material found in magma that i ...
... a long tube through which magma moves from the magma chamber to Earth’s surface the opening through which molten rock and gas leave a volcano the area covered by lava as it pours out of a volcano’s vent a bowl shaped area that forms around a volcano’s central opening a material found in magma that i ...
UNDERSTANDING VOLCANOS
... Move down slopes of volcano and stream valleys with velocities of 30 to 60 miles/hour ...
... Move down slopes of volcano and stream valleys with velocities of 30 to 60 miles/hour ...
Volcanoes - geographylyndon
... area located in the south of the island, called Soufriere Hills. The volcanic peak in this area is called Chances Peak, which had been dormant for over 300 years. Then in 1995, the volcano began to give off warning signs of an eruption (small earthquakes and eruptions of dust and ash). Once Chances ...
... area located in the south of the island, called Soufriere Hills. The volcanic peak in this area is called Chances Peak, which had been dormant for over 300 years. Then in 1995, the volcano began to give off warning signs of an eruption (small earthquakes and eruptions of dust and ash). Once Chances ...
Directed Reading
... a. volcanic cone that is broad at the base and has gently sloping sides b. structure that is formed from lava and pyroclastic material ejected during a volcanic eruption c. volcano that is rarely more than a few hundred meters high and has steep slope angles that can be close to 40° d. volcano that ...
... a. volcanic cone that is broad at the base and has gently sloping sides b. structure that is formed from lava and pyroclastic material ejected during a volcanic eruption c. volcano that is rarely more than a few hundred meters high and has steep slope angles that can be close to 40° d. volcano that ...
THIS Volcano powerpoint
... Many eruptions are relatively quiet and are characterized by the calm, nonviolent extrusion of lava flows on the earth's surface. If the material is fluid in nature (solid and semi-solid) this type of flow is called Pyroclastic Flow (the typical hot lava that flows down a volcano). Other eruptions, ...
... Many eruptions are relatively quiet and are characterized by the calm, nonviolent extrusion of lava flows on the earth's surface. If the material is fluid in nature (solid and semi-solid) this type of flow is called Pyroclastic Flow (the typical hot lava that flows down a volcano). Other eruptions, ...
GEOGRAPHY Chap – 7 VOLCANOES STD. 8 Q1. What is a volcano
... Eg. Mt. Etna (Italy) Q2. Classify volcanoes on the basis of the frequency and intensity of the eruption. Ans. On the basis of frequency Active These are the volcanoes that erupted lava, ash etc. in the recent historic period and are likely to erupt later. ...
... Eg. Mt. Etna (Italy) Q2. Classify volcanoes on the basis of the frequency and intensity of the eruption. Ans. On the basis of frequency Active These are the volcanoes that erupted lava, ash etc. in the recent historic period and are likely to erupt later. ...
Document
... --both lava flows & tephra --andesitic lava / found “near” coasts --medium amount of silica ...
... --both lava flows & tephra --andesitic lava / found “near” coasts --medium amount of silica ...
Volcanic
... Classroom Resources After major eruption of composite volcano, will often start to rebuild with rhyolite domes ...
... Classroom Resources After major eruption of composite volcano, will often start to rebuild with rhyolite domes ...
magma and lava
... 12.The depression that results when a volcanic cone collapses over an emptying magma chamber is called a caldera. 13.Why does magma rise to the surface? Magma rises because it is less dense than the surrounding material 14.What is the difference between magma and lava? Magma is molten rock undergrou ...
... 12.The depression that results when a volcanic cone collapses over an emptying magma chamber is called a caldera. 13.Why does magma rise to the surface? Magma rises because it is less dense than the surrounding material 14.What is the difference between magma and lava? Magma is molten rock undergrou ...
volcanic activity guided notes
... Other Types of Volcanic Activity Hot Spring – forms when ______________ heated by a nearby body of magma rises to the surface and collects in a natural _________. Geyser – a fountain of ___________ and __________ that erupts form the ground. ...
... Other Types of Volcanic Activity Hot Spring – forms when ______________ heated by a nearby body of magma rises to the surface and collects in a natural _________. Geyser – a fountain of ___________ and __________ that erupts form the ground. ...
Cross section of a volcano - Newcastle School for Boys
... Why do they happen? A destructive plate boundary is found where a continental plate meets an oceanic plate. The oceanic plate descends under the continental plate because it is denser. As the plate descends it starts to melt due to the friction caused by the movement between the plates. This melted ...
... Why do they happen? A destructive plate boundary is found where a continental plate meets an oceanic plate. The oceanic plate descends under the continental plate because it is denser. As the plate descends it starts to melt due to the friction caused by the movement between the plates. This melted ...
Volcanoes - Blacklick Valley School District
... It slowly rises to the earths surface Flows out through an opening called a vent Lava cools quickly and forms igneous rock Opening at the top of the vent is called a crater Pyroclastic flow – massive avalanches of hot glowing rock and gases (complete destruction) ...
... It slowly rises to the earths surface Flows out through an opening called a vent Lava cools quickly and forms igneous rock Opening at the top of the vent is called a crater Pyroclastic flow – massive avalanches of hot glowing rock and gases (complete destruction) ...
Chapter 8: Major Elements
... The Columbia River Basalts and Oregon High Lava Plateau are dominated by lava flows. During the peak of CRB activity (1618 million years ago) some massive individual flows may have exceeded 2000 km3 or even 3000 km3, which would qualify them as the largest known terrestrial lava flows ...
... The Columbia River Basalts and Oregon High Lava Plateau are dominated by lava flows. During the peak of CRB activity (1618 million years ago) some massive individual flows may have exceeded 2000 km3 or even 3000 km3, which would qualify them as the largest known terrestrial lava flows ...
Unit 4 Chapter 13
... Magma is molten rock under the earth’s surface It can form under 3 conditions: 1.Temperature of the rock rises above the melting point of the material. 2.If enough pressure is removed from the rock, the melting point will decrease and the rock will melt. 3.Addition of fluids such as water may decrea ...
... Magma is molten rock under the earth’s surface It can form under 3 conditions: 1.Temperature of the rock rises above the melting point of the material. 2.If enough pressure is removed from the rock, the melting point will decrease and the rock will melt. 3.Addition of fluids such as water may decrea ...
Volcano Report
... Volcano Facts Stages of Volcanic Activity Volcanic activity can range from permanently active to inactive. During the active state, volcanoes can erupt. The inactive stage is when volcanoes cease to erupt and reduce in size. Eruption Stage A volcanic eruption occurs when lava flows or ejects from a ...
... Volcano Facts Stages of Volcanic Activity Volcanic activity can range from permanently active to inactive. During the active state, volcanoes can erupt. The inactive stage is when volcanoes cease to erupt and reduce in size. Eruption Stage A volcanic eruption occurs when lava flows or ejects from a ...
Volcanoes - Helena High School
... • An active volcano is one that is currently erupting or has erupted recently (in geological terms). • A dormant volcano is one that has not erupted lately but is considered likely to do so in the future. ...
... • An active volcano is one that is currently erupting or has erupted recently (in geological terms). • A dormant volcano is one that has not erupted lately but is considered likely to do so in the future. ...
5volcano notes chapter
... the magma chamber through the pipe until it flows or explodes out of the vent. Magma chamber-pocket magma collects in. Pipe-long tube magma rises through Vent-molten rock and gas leave through Crater- bowl shaped area formed at top of volcano. 2. A volcanoes eruption can be quiet or explosive depend ...
... the magma chamber through the pipe until it flows or explodes out of the vent. Magma chamber-pocket magma collects in. Pipe-long tube magma rises through Vent-molten rock and gas leave through Crater- bowl shaped area formed at top of volcano. 2. A volcanoes eruption can be quiet or explosive depend ...
Stratovolcano and Shield Volcano Morphology
... Mount Fuji in Japan, Mount Hood in Oregon, and Mount Saint Helens in Washington. In fact, most volcanoes in the United States (excluding Hawai’i) are stratovolcanoes. Shield volcanoes are built almost entirely of lava flows because little to no ash is ejected during eruptions. Shield volcano eruptio ...
... Mount Fuji in Japan, Mount Hood in Oregon, and Mount Saint Helens in Washington. In fact, most volcanoes in the United States (excluding Hawai’i) are stratovolcanoes. Shield volcanoes are built almost entirely of lava flows because little to no ash is ejected during eruptions. Shield volcano eruptio ...
the free PDF resource
... Magma is the name given to molten rock beneath the earth’s surface. It becomes lava once it erupts. 2. Which tectonic plate is also known as ‘the Ring of Fire’? The Pacific Plate. 3. Which type of plate boundary is responsible for the formation of fold mountains? A collision boundary. 4. Give two fe ...
... Magma is the name given to molten rock beneath the earth’s surface. It becomes lava once it erupts. 2. Which tectonic plate is also known as ‘the Ring of Fire’? The Pacific Plate. 3. Which type of plate boundary is responsible for the formation of fold mountains? A collision boundary. 4. Give two fe ...
Wk16-Volcanoes-p2
... • Felsic: means magma with high silica and feldspar content. • Felsic magma traps water and gas bubbles, which leads to lots of pressure. • Silica acts like a cork • Explosive eruptions are caused by a build up of high pressure. • Convergent zones contain lots of water, therefore have explosive erup ...
... • Felsic: means magma with high silica and feldspar content. • Felsic magma traps water and gas bubbles, which leads to lots of pressure. • Silica acts like a cork • Explosive eruptions are caused by a build up of high pressure. • Convergent zones contain lots of water, therefore have explosive erup ...
Volcanoes Power Point - Boone County Schools
... How and why do volcanoes erupt? • Hot, molten rock (magma) is buoyant (has a lower density than the surrounding rocks) and will rise up through the crust to erupt on the surface. – Same principle as hot air rising, e.g. how a hot air balloon works ...
... How and why do volcanoes erupt? • Hot, molten rock (magma) is buoyant (has a lower density than the surrounding rocks) and will rise up through the crust to erupt on the surface. – Same principle as hot air rising, e.g. how a hot air balloon works ...
WebQuest Questions - Tenafly Public Schools
... 2. In ___________ a terrible earthquake left Pompeii devastated. Then the second and ________ disaster hit the eruption of ______________________. 3. For ___________ days, volcanic matter covered Pompeii, making a blanket ___________to _____________ feet deep over the entire area. 4. The survivors w ...
... 2. In ___________ a terrible earthquake left Pompeii devastated. Then the second and ________ disaster hit the eruption of ______________________. 3. For ___________ days, volcanic matter covered Pompeii, making a blanket ___________to _____________ feet deep over the entire area. 4. The survivors w ...
Mount Pinatubo
Mount Pinatubo (Filipino: Bundok Pinatubo) is an active stratovolcano in the Cabusilan Mountains on the island of Luzon, near the tripoint of the Philippine provinces of Zambales, Tarlac, and Pampanga. Before the volcanic activities of 1991, its eruptive history was unknown to most people. It was heavily eroded, inconspicuous and obscured from view. It was covered with dense forest which supported a population of several thousand indigenous people, the Aetas, who fled to the mountains during the Spanish conquest of the Philippines.The volcano's Plinian / Ultra-Plinian eruption on 15 June 1991 produced the second largest terrestrial eruption of the 20th century after the 1912 eruption of Novarupta in the Alaska Peninsula.Complicating the eruption was the arrival of Typhoon Yunya (Diding), bringing a lethal mix of ash and rain to areas surrounding the volcano. Successful predictions at the onset of the climactic eruption led to the evacuation of tens of thousands of people from the surrounding areas, saving many lives, but the surrounding areas were severely damaged by pyroclastic flows, ash deposits, and subsequently, by the lahars caused by rainwaters re-mobilizing earlier volcanic deposits causing extensive destruction to infrastructure and changing the river systems months to years after the eruption.The effects of the eruption were felt worldwide. It ejected roughly 10,000,000,000 tonnes (1.1×1010 short tons) or 10 km3 (2.4 cu mi) of magma, and 20,000,000 tonnes (22,000,000 short tons) SO2, bringing vast quantities of minerals and metals to the surface environment. It injected more particulate into the stratosphere than any eruption since Krakatoa in 1883. Over the following months, the aerosols formed a global layer of sulfuric acid haze. Global temperatures dropped by about 0.5 °C (0.9 °F) in the years 1991-93, and ozone depletion temporarily increased substantially.