Volcanoes and Earthquakes
... – One block of rock sits over fault (hanging wall) – Other block sits under the fault (footwall) – During movement, hanging wall move ...
... – One block of rock sits over fault (hanging wall) – Other block sits under the fault (footwall) – During movement, hanging wall move ...
Earth Outline
... IV. Mountains, Volcanoes, and Earthquakes (C16-18) a. MOUNTAINS: The highest mountains form where continental plates collide. b. When continental and oceanic plates collide, the continental plate moves over the oceanic plate. The Cascades Mountains were formed this way. c. Some mountains form where ...
... IV. Mountains, Volcanoes, and Earthquakes (C16-18) a. MOUNTAINS: The highest mountains form where continental plates collide. b. When continental and oceanic plates collide, the continental plate moves over the oceanic plate. The Cascades Mountains were formed this way. c. Some mountains form where ...
oxbow lake
... • Cinder Cone - A cone-shaped volcano whose steep sides are formed by loose, fragmented cinders that fall to the Earth close to the vent. The lava flows through a single vent that is usually only up to about 1,000 feet tall. There is usually a bowl-shaped crater at the top. As the gas-filled lava er ...
... • Cinder Cone - A cone-shaped volcano whose steep sides are formed by loose, fragmented cinders that fall to the Earth close to the vent. The lava flows through a single vent that is usually only up to about 1,000 feet tall. There is usually a bowl-shaped crater at the top. As the gas-filled lava er ...
Obtaining information about inside the earth.
... Golan heights is the volcanic area with much basalt. Some basalt in Carmel and Ramon crater also the Horns of Hittin. The Golan Heights was once a basin (ka-ar) between Gilad and Hermon (chalk) mountain. The kiluach trickled out between these two mountains and filled the basin, hardened into basalt ...
... Golan heights is the volcanic area with much basalt. Some basalt in Carmel and Ramon crater also the Horns of Hittin. The Golan Heights was once a basin (ka-ar) between Gilad and Hermon (chalk) mountain. The kiluach trickled out between these two mountains and filled the basin, hardened into basalt ...
Objectives
... another. One plate containing oceanic lithosphere descends beneath the adjacent plate, thus consuming the oceanic lithosphere into the earth's mantle. This on-going process is called subduction. As the descending plate bends downward at the surface, it creates a large linear depression called an oce ...
... another. One plate containing oceanic lithosphere descends beneath the adjacent plate, thus consuming the oceanic lithosphere into the earth's mantle. This on-going process is called subduction. As the descending plate bends downward at the surface, it creates a large linear depression called an oce ...
Stratigraphy animation text
... Marine or lacustrine sedimentation is the process where particles either precipitate out of solution or where rock, mineral and/or organic material break down and accumulate as strata. The seas recede and the layers are subjected them to regional compressional forces which deform the tectonic plate ...
... Marine or lacustrine sedimentation is the process where particles either precipitate out of solution or where rock, mineral and/or organic material break down and accumulate as strata. The seas recede and the layers are subjected them to regional compressional forces which deform the tectonic plate ...
Chapter 5
... flowing lava, the surface solidifies into a crust, beneath which the liquid lava continues to flow in well-defined channels called lava tubes. The very fluid lava initially forms thin pahoehoe flows. With increasing viscosity the rate of movement slows and the stickier lava may be transformed into a ...
... flowing lava, the surface solidifies into a crust, beneath which the liquid lava continues to flow in well-defined channels called lava tubes. The very fluid lava initially forms thin pahoehoe flows. With increasing viscosity the rate of movement slows and the stickier lava may be transformed into a ...
Tectonic Plates
... The Earth's plates are moving apart due to convection currents inside the Earth ...
... The Earth's plates are moving apart due to convection currents inside the Earth ...
Chapter 6 Worksheet
... that forms a thick and hot deposit, (e) slow settling of ash from a tall eruption column, forming a nonwelded tuff. ...
... that forms a thick and hot deposit, (e) slow settling of ash from a tall eruption column, forming a nonwelded tuff. ...
Topic 12 Earth`s Dynamic Crust and Interior
... Measure of the intensity of an earthquake Mercalli Scale: Richter Scale: Tsunami: Igneous Activity and Volcanoes Volcano: Volcanic Eruption: Zones of Crustal Activity Ring of fire: Where are other areas of activity located? A Model of Earth’s Interior Scientists use seismic waves to create a model W ...
... Measure of the intensity of an earthquake Mercalli Scale: Richter Scale: Tsunami: Igneous Activity and Volcanoes Volcano: Volcanic Eruption: Zones of Crustal Activity Ring of fire: Where are other areas of activity located? A Model of Earth’s Interior Scientists use seismic waves to create a model W ...
Jeopardy Test Review CH 22
... What terms are described in the following: a. An opening in the ground where magma rises to the surface. b. A pocket where magma collects c. A bowl shaped pit at the top of a volcano d. A narrow, vertical channel where magma rises to the surface. A. Vent C. crater B. Magma chamber D. pipe Back ...
... What terms are described in the following: a. An opening in the ground where magma rises to the surface. b. A pocket where magma collects c. A bowl shaped pit at the top of a volcano d. A narrow, vertical channel where magma rises to the surface. A. Vent C. crater B. Magma chamber D. pipe Back ...
Chapter 22 Vocabulary ReviewA Directions: Complete this sheet
... Directions: Complete this sheet individually. You may use your notes. When finished, show the teacher your work and get an answer key to check your work (The answer key will also be posted on line) Study Tips: 1. Read study guide and check off items as you review them; 2. Reread notes and/or text; 3 ...
... Directions: Complete this sheet individually. You may use your notes. When finished, show the teacher your work and get an answer key to check your work (The answer key will also be posted on line) Study Tips: 1. Read study guide and check off items as you review them; 2. Reread notes and/or text; 3 ...
Torfajökull Volcanic System / Fjallabak Nature Reserve
... The Torfajökull area is approximately 600 km 2 rhyolite massif at an altitude of 600-1200 meters above sea level in the south central Icelandic highlands. It covers the Torfajökull volcanic system along with the southern tip of the Bárðarbunga volcanic system to the north. The landscape is spectacul ...
... The Torfajökull area is approximately 600 km 2 rhyolite massif at an altitude of 600-1200 meters above sea level in the south central Icelandic highlands. It covers the Torfajökull volcanic system along with the southern tip of the Bárðarbunga volcanic system to the north. The landscape is spectacul ...
TEST 1 FALL 2006
... a. rhyrolite … ….basalt c. rhyolite … …granite b. basalt … …gabbro d. granite… …basalt 17. The fact that large plates of the planet Earth are moving to day and therefore have moved in the geologic past is an example of _______. a. the law of plate tectonics c. uniformitarianism b. continental drift ...
... a. rhyrolite … ….basalt c. rhyolite … …granite b. basalt … …gabbro d. granite… …basalt 17. The fact that large plates of the planet Earth are moving to day and therefore have moved in the geologic past is an example of _______. a. the law of plate tectonics c. uniformitarianism b. continental drift ...
Document
... still stand above sea level, but volcanism has ceased. Northwest of the Hawaiian Islands, the volcanoes have eroded and are now seamounts. The ages of volcanic rocks increase along the Hawaiian Ridge to the northwest of Hawaii. The prominent bend observed where the Hawaiian Ridge intersects the Empe ...
... still stand above sea level, but volcanism has ceased. Northwest of the Hawaiian Islands, the volcanoes have eroded and are now seamounts. The ages of volcanic rocks increase along the Hawaiian Ridge to the northwest of Hawaii. The prominent bend observed where the Hawaiian Ridge intersects the Empe ...
Plate Boundaries Handout
... Magma underground is heated, expands, and becomes less dense, cause it to float to the surface. It then cools, becomes more dense and sinks back down. The result is a repeating current of moving magma. ...
... Magma underground is heated, expands, and becomes less dense, cause it to float to the surface. It then cools, becomes more dense and sinks back down. The result is a repeating current of moving magma. ...
Plate Boundaries
... The mid-ocean ridge (shown in red) winds its way between the continents much like the seam on a baseball. ...
... The mid-ocean ridge (shown in red) winds its way between the continents much like the seam on a baseball. ...
How old is our Earth
... 31. Breaking of rocks along parallel sheet like layers is known as ____ A) Spheroidal weathering *B) exfoliation C) Frost wedging D) None of the above 32. Which of the following events indicate an impending volcanic eruption? A) Change in the composition of gases coming out of hot springs and fumero ...
... 31. Breaking of rocks along parallel sheet like layers is known as ____ A) Spheroidal weathering *B) exfoliation C) Frost wedging D) None of the above 32. Which of the following events indicate an impending volcanic eruption? A) Change in the composition of gases coming out of hot springs and fumero ...
PS review Earth
... • Types of volcanoes: 1) Shield- gently sloping mountain formed by mild, frequent eruptions releasing fluid lava. Ex) Mauna Loa, HI 2) Composite- steep-sloped volcano made of alternating layers of ash, cinders, and lava Ex) Mt. Fuji, Japan 3) Cinder cone- smallest and most abundant, formed by violen ...
... • Types of volcanoes: 1) Shield- gently sloping mountain formed by mild, frequent eruptions releasing fluid lava. Ex) Mauna Loa, HI 2) Composite- steep-sloped volcano made of alternating layers of ash, cinders, and lava Ex) Mt. Fuji, Japan 3) Cinder cone- smallest and most abundant, formed by violen ...
Volcano
A volcano is a rupture on the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.Earth's volcanoes occur because its crust is broken into 17 major, rigid tectonic plates that float on a hotter, softer layer in its mantle. Therefore, on Earth, volcanoes are generally found where tectonic plates are diverging or converging. For example, a mid-oceanic ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates pulling apart; the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates coming together. Volcanoes can also form where there is stretching and thinning of the crust's interior plates, e.g., in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande Rift in North America. This type of volcanism falls under the umbrella of ""plate hypothesis"" volcanism. Volcanism away from plate boundaries has also been explained as mantle plumes. These so-called ""hotspots"", for example Hawaii, are postulated to arise from upwelling diapirs with magma from the core–mantle boundary, 3,000 km deep in the Earth. Volcanoes are usually not created where two tectonic plates slide past one another.Erupting volcanoes can pose many hazards, not only in the immediate vicinity of the eruption. One such hazard is that volcanic ash can be a threat to aircraft, in particular those with jet engines where ash particles can be melted by the high operating temperature; the melted particles then adhere to the turbine blades and alter their shape, disrupting the operation of the turbine. Large eruptions can affect temperature as ash and droplets of sulfuric acid obscure the sun and cool the Earth's lower atmosphere (or troposphere); however, they also absorb heat radiated up from the Earth, thereby warming the upper atmosphere (or stratosphere). Historically, so-called volcanic winters have caused catastrophic famines.