Types of Magma - Teacher Notes
... Viscosity • Viscosity – internal resistance to flow • Low Viscosity ...
... Viscosity • Viscosity – internal resistance to flow • Low Viscosity ...
Lahar in a jar - PRA Classical Academy for Homeschoolers
... How many caldera-forming eruptions have occurred from the long-lived hotspot that is currently beneath Yellowstone? Many eruptive units found along the path of the Yellowstone hotspot have been dated, but only a few of them represent large caldera-forming eruptions. At least five volcanic fields cen ...
... How many caldera-forming eruptions have occurred from the long-lived hotspot that is currently beneath Yellowstone? Many eruptive units found along the path of the Yellowstone hotspot have been dated, but only a few of them represent large caldera-forming eruptions. At least five volcanic fields cen ...
Volcanoes
... of hot debris and gases shoot out from the volcano at supersonic speeds. Molten rock is blown into millions of pieces in the air. Dust size particles may travel for years in the upper atmosphere. Volcanoes shrink after explosion due to the used up magma in the magma chamber. ...
... of hot debris and gases shoot out from the volcano at supersonic speeds. Molten rock is blown into millions of pieces in the air. Dust size particles may travel for years in the upper atmosphere. Volcanoes shrink after explosion due to the used up magma in the magma chamber. ...
lesson 24 effects of ash fall
... b. Cinder cone Cinder cones are formed by fragments being thrown up from volcanic vents and piling up into a cone shape. An example of a cinder cone is Parícutin. ...
... b. Cinder cone Cinder cones are formed by fragments being thrown up from volcanic vents and piling up into a cone shape. An example of a cinder cone is Parícutin. ...
Chapter 7 Notes: Volcanoes Volcanoes and Plate Tectonics Volcano Magma
... Volcanic Belts: Form along the Earth’s _______________ boundaries o The boundaries _______________ or Diverge Divergent Boundary: Plates move _______________ Ex: Sea Floor _______________ o Rift _______________ _______________ pours out and volcano formed Convergent Boundary: plates ________ ...
... Volcanic Belts: Form along the Earth’s _______________ boundaries o The boundaries _______________ or Diverge Divergent Boundary: Plates move _______________ Ex: Sea Floor _______________ o Rift _______________ _______________ pours out and volcano formed Convergent Boundary: plates ________ ...
Volcanoes Page 1 of 4 I. Introduction: two predominant types of lava
... b. Large size, symmetric shape c. Interbedded lavas and pyroclastics—andesitic magma 1) fluid lavas early 2) pyroclastics build steep upper slopes of coarse material, finer widespread 3) lavas stabilize this area—short central vent flows d. Most violent type of activity (e.g. Vesuvius) e. Often prod ...
... b. Large size, symmetric shape c. Interbedded lavas and pyroclastics—andesitic magma 1) fluid lavas early 2) pyroclastics build steep upper slopes of coarse material, finer widespread 3) lavas stabilize this area—short central vent flows d. Most violent type of activity (e.g. Vesuvius) e. Often prod ...
Virtual Volcano Lab Handout
... c. 2 famous cinder cone volcanoes & where they are located: i. _______________________________________________________ ii. _______________________________________________________ 3) Shield Volcano: a. How are they made?_____________________________________________ b. Look like—______________________ ...
... c. 2 famous cinder cone volcanoes & where they are located: i. _______________________________________________________ ii. _______________________________________________________ 3) Shield Volcano: a. How are they made?_____________________________________________ b. Look like—______________________ ...
Virtual Volcano Lab
... c. 2 famous cinder cone volcanoes & where they are located: i. _______________________________________________________ ii. _______________________________________________________ 3) Shield Volcano: a. How are they made?_____________________________________________ b. Look like—______________________ ...
... c. 2 famous cinder cone volcanoes & where they are located: i. _______________________________________________________ ii. _______________________________________________________ 3) Shield Volcano: a. How are they made?_____________________________________________ b. Look like—______________________ ...
Volcanic Landforms
... • Composite volcanoes erupt in different ways at different times. These volcanoes are built in layers by multiple eruptions, sometimes recurring over hundreds of thousands of years, sometimes over a few hundred. Andesite magma (the most common but not the only magma type), tends to form composite co ...
... • Composite volcanoes erupt in different ways at different times. These volcanoes are built in layers by multiple eruptions, sometimes recurring over hundreds of thousands of years, sometimes over a few hundred. Andesite magma (the most common but not the only magma type), tends to form composite co ...
What mainly controls eruptive style? Viscosity in magma 2. Eruptive
... Tom Sisson of USGS estimates its age at ~100 ka ...
... Tom Sisson of USGS estimates its age at ~100 ka ...
6. Volcano PowerPoint
... Typical slopes approximately 15 degrees. Lava flows downslope, away from a central vent or a series of vents. Many shield volcanoes have a central caldera: Calderas form after an eruption when the surface collapses. Each caldera is located at the site of a former eruption. USGS ...
... Typical slopes approximately 15 degrees. Lava flows downslope, away from a central vent or a series of vents. Many shield volcanoes have a central caldera: Calderas form after an eruption when the surface collapses. Each caldera is located at the site of a former eruption. USGS ...
Volcano Making - Manchester Museum
... this affect your eruption? * Try pouring the activation fluid into the crater at different speeds. What effect does this have? * Try adding more washing up liquid or some fresh water to the activation fluid mixture. What happens? ...
... this affect your eruption? * Try pouring the activation fluid into the crater at different speeds. What effect does this have? * Try adding more washing up liquid or some fresh water to the activation fluid mixture. What happens? ...
the webquest worksheet
... 12. Click back, click on Shops: Archeologists working at Pompeii have also uncovered shops for ______________________, ___________________, and mills for ____________________. 13. Click back, click on Baths: Romans went to large, public ____________________. ...
... 12. Click back, click on Shops: Archeologists working at Pompeii have also uncovered shops for ______________________, ___________________, and mills for ____________________. 13. Click back, click on Baths: Romans went to large, public ____________________. ...
Preparing for Volcanoes
... global warming by giving off carbon dioxide into the atmosphere, which contributes to the greenhouse effect. Greenhouses (or, hot houses) are heated by the sun's rays that enter through glass or plastic, and the heat is retained inside like a parked car on a hot day with the windows rolled up. Carbo ...
... global warming by giving off carbon dioxide into the atmosphere, which contributes to the greenhouse effect. Greenhouses (or, hot houses) are heated by the sun's rays that enter through glass or plastic, and the heat is retained inside like a parked car on a hot day with the windows rolled up. Carbo ...
Shield volcanoes
... ash and lava (much more than normal volcanoes) 2) A thick cloud of super-heated gas and ash will flow at high speed from the volcano, killing, burning and burying everything it touches. Everything within tens of miles will be destroyed. 3) Ash will shoot kilometres into the air and block out almost ...
... ash and lava (much more than normal volcanoes) 2) A thick cloud of super-heated gas and ash will flow at high speed from the volcano, killing, burning and burying everything it touches. Everything within tens of miles will be destroyed. 3) Ash will shoot kilometres into the air and block out almost ...
ppt: volcano intro hook
... Why aren’t all volcanoes the same? Understanding why material comes out of a volcano explosively in one spot and not at another is related to what’s happening under the surface ...
... Why aren’t all volcanoes the same? Understanding why material comes out of a volcano explosively in one spot and not at another is related to what’s happening under the surface ...
Volcanoes
... How do they form? Magma 50-100 miles below the earth’s surface slowly begins to rise to the surface As the magma rises it melts gaps in the surrounding rock As more magma rises a large reservoir forms as close as 2 miles below the surface (magma chamber) ...
... How do they form? Magma 50-100 miles below the earth’s surface slowly begins to rise to the surface As the magma rises it melts gaps in the surrounding rock As more magma rises a large reservoir forms as close as 2 miles below the surface (magma chamber) ...
Volcano and extrusive igneous rock notes
... • a vent is the orifice at the top of a volcano through which gas and magma erupt • a crater is the bowl-shaped feature at the top of a volcano where the vent is located. • a fissure is a crack in the side of a volcano through which magma can flow. These might be circular and concentric with the cra ...
... • a vent is the orifice at the top of a volcano through which gas and magma erupt • a crater is the bowl-shaped feature at the top of a volcano where the vent is located. • a fissure is a crack in the side of a volcano through which magma can flow. These might be circular and concentric with the cra ...
Volcanoes and Igneous Activity Earth - Chapter 4
... • Volcanic pipes and necks • Volcanic necks (e.g., Ship Rock, New Mexico) are resistant vents left standing after erosion has removed the volcanic cone • Pipes are short conduits that connect a magma chamber to the surface ...
... • Volcanic pipes and necks • Volcanic necks (e.g., Ship Rock, New Mexico) are resistant vents left standing after erosion has removed the volcanic cone • Pipes are short conduits that connect a magma chamber to the surface ...
File - Ms. D. Science CGPA
... Characteristics of a quiet eruption: A volcano erupts quietly if its magma is hot or low in silica. The gases in the magma bubble out gently. The lava oozes quietly from the vent and can flow for many kilometers. Characteristics of an explosive eruption: A volcano erupts explosively if its magma is ...
... Characteristics of a quiet eruption: A volcano erupts quietly if its magma is hot or low in silica. The gases in the magma bubble out gently. The lava oozes quietly from the vent and can flow for many kilometers. Characteristics of an explosive eruption: A volcano erupts explosively if its magma is ...
Unit 3 Section 2 Volcanoes Answer Key - WAHS
... In 1883, on the island of Krakatoa in the East Indies, one of the most violent eruptions of recorded time took place. Half of the island was blown away by a volcanic eruption. Over a cubic mile of rock was hurled into the air. The sound of the explosion was heard in Australia, over 2000 miles away! ...
... In 1883, on the island of Krakatoa in the East Indies, one of the most violent eruptions of recorded time took place. Half of the island was blown away by a volcanic eruption. Over a cubic mile of rock was hurled into the air. The sound of the explosion was heard in Australia, over 2000 miles away! ...
Name: Date: Teacher: Mrs. MarionGroup #: Visiting Volcanoes
... iv. About _________ feet of tephra fell on Pompeii. v.Herculaneum was buried under _______ feet of ash deposited by a pyroclastic flow. vi. Vesuvius is above a _________________ zone, where the African plate is being pushed beneath the Eurasian plate. Site 2: Roots of a Volcano – Link: http://www.ms ...
... iv. About _________ feet of tephra fell on Pompeii. v.Herculaneum was buried under _______ feet of ash deposited by a pyroclastic flow. vi. Vesuvius is above a _________________ zone, where the African plate is being pushed beneath the Eurasian plate. Site 2: Roots of a Volcano – Link: http://www.ms ...
Santorini
Santorini (Greek: Σαντορίνη, pronounced [sandoˈrini]), classically Thera (English pronunciation /ˈθɪərə/), and officially Thira (Greek: Θήρα [ˈθira]), is an island in the southern Aegean Sea, about 200 km (120 mi) southeast of Greece's mainland. It is the largest island of a small, circular archipelago which bears the same name and is the remnant of a volcanic caldera. It forms the southernmost member of the Cyclades group of islands, with an area of approximately 73 km2 (28 sq mi) and a 2011 census population of 15,550. The municipality of Santorini includes the inhabited islands of Santorini and Therasia and the uninhabited islands of Nea Kameni, Palaia Kameni, Aspronisi, and Christiana. The total land area is 90.623 km2 (34.990 sq mi). Santorini is part of the Thira regional unit.Santorini is essentially what remains after an enormous volcanic eruption that destroyed the earliest settlements on a formerly single island, and created the current geological caldera. A giant central, rectangular lagoon, which measures about 12 by 7 km (7.5 by 4.3 mi), is surrounded by 300 m (980 ft) high, steep cliffs on three sides. The main island slopes downward to the Aegean Sea. On the fourth side, the lagoon is separated from the sea by another much smaller island called Therasia; the lagoon is connected to the sea in two places, in the northwest and southwest. The depth of the caldera, at 400m, makes it possible for all but the largest ships to anchor anywhere in the protected bay; there is also a fisherman harbour at Vlychada, on the southwestern coast. The island's principal port is Athinias. The capital, Fira, clings to the top of the cliff looking down on the lagoon. The volcanic rocks present from the prior eruptions feature olivine and have a small presence of hornblende.It is the most active volcanic centre in the South Aegean Volcanic Arc, though what remains today is chiefly a water-filled caldera. The volcanic arc is approximately 500 km (310 mi) long and 20 to 40 km (12 to 25 mi) wide. The region first became volcanically active around 3–4 million years ago, though volcanism on Thera began around 2 million years ago with the extrusion of dacitic lavas from vents around the Akrotiri.The island is the site of one of the largest volcanic eruptions in recorded history: the Minoan eruption (sometimes called the Thera eruption), which occurred some 3,600 years ago at the height of the Minoan civilization. The eruption left a large caldera surrounded by volcanic ash deposits hundreds of metres deep and may have led indirectly to the collapse of the Minoan civilization on the island of Crete, 110 km (68 mi) to the south, through a gigantic tsunami. Another popular theory holds that the Thera eruption is the source of the legend of Atlantis.