Warm-up #49 Apr. 3
... erupted with tremendous force – Blew off the entire north flank of the mountain – Ejected a cubic km of ash and rock debris – Yakima, Washington (130 km away) was covered with ash that blocked out the sun ...
... erupted with tremendous force – Blew off the entire north flank of the mountain – Ejected a cubic km of ash and rock debris – Yakima, Washington (130 km away) was covered with ash that blocked out the sun ...
Earth Science
... 12. A long tube through which magma moves from the magma chamber to Earth’s surface. 13. The expulsion of ash, cinders, bombs, and gases during an explosive volcanic eruption. 14. The large hole at the top of a volcano formed when the roof of a volcano’s magma chamber collapses. 15. A fountain of wa ...
... 12. A long tube through which magma moves from the magma chamber to Earth’s surface. 13. The expulsion of ash, cinders, bombs, and gases during an explosive volcanic eruption. 14. The large hole at the top of a volcano formed when the roof of a volcano’s magma chamber collapses. 15. A fountain of wa ...
Volcanic Eruptions
... • Explosive eruptions break lava into fragments that quickly cool into pieces of different sizes. • Large pieces = bombs • Small pieces = cinders ...
... • Explosive eruptions break lava into fragments that quickly cool into pieces of different sizes. • Large pieces = bombs • Small pieces = cinders ...
Volcanoes and volcanic eruptions
... These volcanoes are composed (made up) of alternating layers of lava and ash (other volcanoes just consist of lava). They are usually found at destructive or compressional boundaries. The eruptions from these volcanoes may be a pyroclastic flow rather than a lava flow. A pyroclastic flow is a mixtur ...
... These volcanoes are composed (made up) of alternating layers of lava and ash (other volcanoes just consist of lava). They are usually found at destructive or compressional boundaries. The eruptions from these volcanoes may be a pyroclastic flow rather than a lava flow. A pyroclastic flow is a mixtur ...
Eruption
... Helens typically erupt with explosive force, because the magma is too stiff to allow easy escape of volcanic gases. As a consequence, tremendous internal pressures mount as the trapped gases expand during ascent, before the pent-up pressure is suddenly released in a violent eruption. Such an explosi ...
... Helens typically erupt with explosive force, because the magma is too stiff to allow easy escape of volcanic gases. As a consequence, tremendous internal pressures mount as the trapped gases expand during ascent, before the pent-up pressure is suddenly released in a violent eruption. Such an explosi ...
volcanoes stations
... VI. TEXTURE 14. What does it mean when geologists refer to an igneous rock's "texture?” (use the reading below) ...
... VI. TEXTURE 14. What does it mean when geologists refer to an igneous rock's "texture?” (use the reading below) ...
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 ...
Directions: Read the information below. Use this information and
... found in the world. They aren't famous as their eruptions usually don't cause any loss of life. Cinder cones are chiefly formed by Strombolian eruptions. The cones usually grow up in groups and they often occur on the flanks of strato volcanoes and shield volcanoes. Cinder cones are built from lava ...
... found in the world. They aren't famous as their eruptions usually don't cause any loss of life. Cinder cones are chiefly formed by Strombolian eruptions. The cones usually grow up in groups and they often occur on the flanks of strato volcanoes and shield volcanoes. Cinder cones are built from lava ...
Types of Volcanoes Dangers from Composite Cones Pyroclastic
... Smooth “skin” with wrinkles. Pahoehoe flow - looks like twisted and braided rope. aa flow – rough, jagged blocks with sharp edges. Melted rhyolitic rock flows very slowly. ...
... Smooth “skin” with wrinkles. Pahoehoe flow - looks like twisted and braided rope. aa flow – rough, jagged blocks with sharp edges. Melted rhyolitic rock flows very slowly. ...
Lecture 6: Volcanoes I. Introduction II. Magma A. Magma vs Lava 1
... 3. Andesitic magma F. Water content and granitic magmas rocks or plate material may carry water when they are subducted or melted 1. water lowers the melting point 2.. dry granite 3. wet granite G. Water and Basaltic magmas III. Eruptive style A. Violent Explosive Magmas ...
... 3. Andesitic magma F. Water content and granitic magmas rocks or plate material may carry water when they are subducted or melted 1. water lowers the melting point 2.. dry granite 3. wet granite G. Water and Basaltic magmas III. Eruptive style A. Violent Explosive Magmas ...
10.1 The Nature of Volcanic Eruptions 10.1 The Nature of
... • Types of pyroclastic material - Ash and dust—fine, glassy fragments - Pumice—frothy, air-filled lava - Lapilli—walnut-sized particles - Cinders—pea-sized particles • Particles larger than lapilli - Blocks—hardened lava - Bombs—ejected as hot lava ...
... • Types of pyroclastic material - Ash and dust—fine, glassy fragments - Pumice—frothy, air-filled lava - Lapilli—walnut-sized particles - Cinders—pea-sized particles • Particles larger than lapilli - Blocks—hardened lava - Bombs—ejected as hot lava ...
2.4-Volcanic features
... charged with gas, they are likely to erupt explosively rather than forming lava flows. •The result is a cloud of pyroclastic debris that may shoot several kilometers into the air and then settle over a wide area. •Fine-grained materials, known as ash (<2mm), may travel great distances. Cinders (2 – ...
... charged with gas, they are likely to erupt explosively rather than forming lava flows. •The result is a cloud of pyroclastic debris that may shoot several kilometers into the air and then settle over a wide area. •Fine-grained materials, known as ash (<2mm), may travel great distances. Cinders (2 – ...
HST_CRF_04_02_03.qxd
... an eruption a crack in the Earth’s crust an underground volcano 8. Where is a volcano’s magma chamber? at the top of the vent deep underground on the volcano’s slope outside the volcano ...
... an eruption a crack in the Earth’s crust an underground volcano 8. Where is a volcano’s magma chamber? at the top of the vent deep underground on the volcano’s slope outside the volcano ...
Shield Volcano
... allowing trapped gasses to expand and propel the magma through openings in the Earth’s surface causing an eruption. • Erupted magma is called lava. ...
... allowing trapped gasses to expand and propel the magma through openings in the Earth’s surface causing an eruption. • Erupted magma is called lava. ...
volcanism vent crater caldera quiet eruption explosive
... 1. Active Volcano- is a volcano that is erupting now, has erupted in the recent past, or shows signs of erupting in the near future. 2. Dormant Volcano- is a volcano that has not erupted recently, but has during recorded history. It is expected to erupt again in the future. 3. Extinct Volcano- is on ...
... 1. Active Volcano- is a volcano that is erupting now, has erupted in the recent past, or shows signs of erupting in the near future. 2. Dormant Volcano- is a volcano that has not erupted recently, but has during recorded history. It is expected to erupt again in the future. 3. Extinct Volcano- is on ...
Volcano Vocabulary - watertown.k12.wi.us
... 1. Active Volcano- is a volcano that is erupting now, has erupted in the recent past, or shows signs of erupting in the near future. 2. Dormant Volcano- is a volcano that has not erupted recently, but has during recorded history. It is expected to erupt again in the future. 3. Extinct Volcano- is on ...
... 1. Active Volcano- is a volcano that is erupting now, has erupted in the recent past, or shows signs of erupting in the near future. 2. Dormant Volcano- is a volcano that has not erupted recently, but has during recorded history. It is expected to erupt again in the future. 3. Extinct Volcano- is on ...
Earth Science--Ch 9 Volcanoes Review Guide
... like/shape, how they erupt, what types of materials they are primarily made of, where they tend to form.) ...
... like/shape, how they erupt, what types of materials they are primarily made of, where they tend to form.) ...
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 ...
Ch 3 Sec 4: Volcanic Landforms
... Some volcanic landforms are formed when lava flows build up mountains and plateaus on Earth’s surface. Volcanic eruptions create landforms made of lava, ash, and other materials. Landforms formed when lava flows build up: 1. shield volcanoes- At some places on Earth’s surface, thin layers of lava p ...
... Some volcanic landforms are formed when lava flows build up mountains and plateaus on Earth’s surface. Volcanic eruptions create landforms made of lava, ash, and other materials. Landforms formed when lava flows build up: 1. shield volcanoes- At some places on Earth’s surface, thin layers of lava p ...
Volcanoes
... – Can move at up to 93 mph and contain gases from 100-800*C – Suffocates or incinerates everything in its path ...
... – Can move at up to 93 mph and contain gases from 100-800*C – Suffocates or incinerates everything in its path ...
Volcanoes - Travelling across time
... Volcanoes form when magma reaches the Earth's surface, causing eruptions of lava and ash. They occur at destructive and constructive plate boundaries. The immediate effects of volcanic eruptions can be devastating, but they may be beneficial in the long term. ...
... Volcanoes form when magma reaches the Earth's surface, causing eruptions of lava and ash. They occur at destructive and constructive plate boundaries. The immediate effects of volcanic eruptions can be devastating, but they may be beneficial in the long term. ...
Volcanoes
... • The composition of the subducted plate determines the composition of the lava – Subducted continental crust may melt and produce rhyolite lava – Subducted oceanic crust may melt and produce basalt or andesite lava – Subduction of sediments derived from the top of the subducted slab may produce a v ...
... • The composition of the subducted plate determines the composition of the lava – Subducted continental crust may melt and produce rhyolite lava – Subducted oceanic crust may melt and produce basalt or andesite lava – Subduction of sediments derived from the top of the subducted slab may produce a v ...
Cerro Blanco (volcano)
Cerro Blanco (also known as Robledo) is a caldera in the Andes of the Catamarca Province in Argentina. Part of the Central Volcanic Zone of the Andes, it is a caldera located at an altitude of 4,670 metres (15,320 ft) in a depression. The caldera is associated with a less well defined caldera to the south and with several lava domes.Cerro Blanco has been active for the last eight million years with several ignimbrites. One of the most recent eruptions occurred 73,000 years ago and formed the Campo de la Piedra Pómez ignimbrite layer. About 5,000 years ago, the largest volcanic eruption of the Central Andes with a volcanic explosivity index of 7 occurred at Cerro Blanco, forming the most recent caldera as well as thick ignimbrite layers. About 110 cubic kilometres (26 cu mi) of rhyolite were erupted then. The volcano is dormant since then with some deformation and geothermal activity. A major future eruption would put local communities to the south at risk.Cerro Blanco is also known for giant ripple marks that have formed on its ignimbrite fields. Persistent wind action on the ground has shifted gravel and sand, forming wave-like structures. These ripple marks have heights up to one metre and are separated by distances up to thirty metres. Unlike dunes they do not migrate with the wind and are stationary. These ripple marks are among the most extreme on Earth and have been compared to Martian ripple marks.