Plate Tectonics and Associated Hazards
... rigid upper section of the mantle, approximately 80-90km thick. Divided into seven large plates and a number of smaller ones. Asthenosphere: the semi-molten mass below the lithosphere on which the plates float and move. Beneath the asthenosphere is the rest of the mantle, which is completely solid. ...
... rigid upper section of the mantle, approximately 80-90km thick. Divided into seven large plates and a number of smaller ones. Asthenosphere: the semi-molten mass below the lithosphere on which the plates float and move. Beneath the asthenosphere is the rest of the mantle, which is completely solid. ...
Can you find us? Map
... Now that we know that the Earth is made up of many layers we will focus on the outermost layer of the Earth known as the crust. The crust is broken up into seven pieces, or plates. These plates are carried by the lithosphere as it sits on top of the asthenosphere. In the activity below you will use ...
... Now that we know that the Earth is made up of many layers we will focus on the outermost layer of the Earth known as the crust. The crust is broken up into seven pieces, or plates. These plates are carried by the lithosphere as it sits on top of the asthenosphere. In the activity below you will use ...
Earth Movements
... There was a time – some 225 million years ago -when the continents were not separated by oceans. The earth’s surface knew only one massive continent, called Panagea. The some 200 million years ago, Pan agea split into two major continents, one of them Gondwana-land (which contains Africa, South Amer ...
... There was a time – some 225 million years ago -when the continents were not separated by oceans. The earth’s surface knew only one massive continent, called Panagea. The some 200 million years ago, Pan agea split into two major continents, one of them Gondwana-land (which contains Africa, South Amer ...
The Structure of the Earth
... • Two types of crust: –Continental Crust (land) – thicker & less dense –Oceanic Crust (land under the ocean) -thinner and more dense ...
... • Two types of crust: –Continental Crust (land) – thicker & less dense –Oceanic Crust (land under the ocean) -thinner and more dense ...
Introducción a la Geofísica
... 4) Given a typical oceanic crustal thickness of 6 km and 4 km of water depth, estimate the thickness of the continental crust at sea level and beneath the Tibetean Plateau (5 km high). Assume a constant crustal density of 2900 kg/m3 and mantle density of 3200 kg/m3. 5) The Hawaiian Islands in the pa ...
... 4) Given a typical oceanic crustal thickness of 6 km and 4 km of water depth, estimate the thickness of the continental crust at sea level and beneath the Tibetean Plateau (5 km high). Assume a constant crustal density of 2900 kg/m3 and mantle density of 3200 kg/m3. 5) The Hawaiian Islands in the pa ...
Mass Extinctions
... • Volcanic activity has been part of the nature of the changing planet • As continents collided and mountains built up, volcanoes formed • During the Precambrian time volcanic activity was one of the most natural events • Lava flows, ash clouds in the atmosphere, and heat made conditions for life ex ...
... • Volcanic activity has been part of the nature of the changing planet • As continents collided and mountains built up, volcanoes formed • During the Precambrian time volcanic activity was one of the most natural events • Lava flows, ash clouds in the atmosphere, and heat made conditions for life ex ...
Gram Cracker Lab ppt
... affect the lithosphere. The purpose is to identify how land formations are affected by the asthenosphere. Today we will build -model plate boundary formations CW: Gram cracker Plate Boundaries, and Plate Boundaries foldable. HW: complete Plate Boundaries Foldable Warm UP: Describe the arrows on the ...
... affect the lithosphere. The purpose is to identify how land formations are affected by the asthenosphere. Today we will build -model plate boundary formations CW: Gram cracker Plate Boundaries, and Plate Boundaries foldable. HW: complete Plate Boundaries Foldable Warm UP: Describe the arrows on the ...
Dynamic planet - MentorHigh.com
... The Yellowstone Hot Spot has interacted with the North American Plate, causing widespread outpourings of basalt that buried about 200,000 square miles under layers of lava flows that are a half mile or more thick. Some of the basaltic magma produced by the hot spot accumulates near the base of the p ...
... The Yellowstone Hot Spot has interacted with the North American Plate, causing widespread outpourings of basalt that buried about 200,000 square miles under layers of lava flows that are a half mile or more thick. Some of the basaltic magma produced by the hot spot accumulates near the base of the p ...
Plate Tectonics Notes
... -Pieces of Earth’s lithosphere are in slow, constant motion -Movement is caused by convection currents in the mantle. -Plates move in three types of behavior -Tectonic plates are made of continental and oceanic crust ...
... -Pieces of Earth’s lithosphere are in slow, constant motion -Movement is caused by convection currents in the mantle. -Plates move in three types of behavior -Tectonic plates are made of continental and oceanic crust ...
7th Grade Earth Science State and District Outcomes Summary
... results of plate motions 3.1b Identify, interpret, and explain models of plates motions on Earth 3.1c Use maps to locate likely geologic “hot spots”, using evidence of earthquakes and volcanic activity 3.1d Use web-based or other technology tools to show connections and patterns in data about tecton ...
... results of plate motions 3.1b Identify, interpret, and explain models of plates motions on Earth 3.1c Use maps to locate likely geologic “hot spots”, using evidence of earthquakes and volcanic activity 3.1d Use web-based or other technology tools to show connections and patterns in data about tecton ...
Earth has several layers
... does not form a continuous shell It is broken into many large and small slabs of rock) ► Scientists ...
... does not form a continuous shell It is broken into many large and small slabs of rock) ► Scientists ...
Earth has several layers
... does not form a continuous shell It is broken into many large and small slabs of rock) ► Scientists ...
... does not form a continuous shell It is broken into many large and small slabs of rock) ► Scientists ...
Igneous Rock - East Hanover Township School District
... A) Extrusive igneous rocks, or volcanics, form when magma makes its way to Earth's surface. The molten rock erupts or flows above the surface as lava, and then cools forming rock. B) Most extrusive (volcanic) rocks have small crystals. Examples include basalt, rhyolite, and andesite. ...
... A) Extrusive igneous rocks, or volcanics, form when magma makes its way to Earth's surface. The molten rock erupts or flows above the surface as lava, and then cools forming rock. B) Most extrusive (volcanic) rocks have small crystals. Examples include basalt, rhyolite, and andesite. ...
What happens at tectonic plate boundaries?
... When two oceanic plates collide, one runs over the other which causes it to sink into the mantle forming a subduction zone. The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. The worlds deepest parts of the ocean are found along ...
... When two oceanic plates collide, one runs over the other which causes it to sink into the mantle forming a subduction zone. The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. The worlds deepest parts of the ocean are found along ...
Mantle Convection
... Beneath the lithosphere is a portion of Earth’s interior called the asthenosphere. The rock in the asthenosphere is rigid, but because it is extremely hot and under intense pressure, it does not behave like the rigid rocks found on Earth’s surface. The rock in the asthenosphere has fluid characteris ...
... Beneath the lithosphere is a portion of Earth’s interior called the asthenosphere. The rock in the asthenosphere is rigid, but because it is extremely hot and under intense pressure, it does not behave like the rigid rocks found on Earth’s surface. The rock in the asthenosphere has fluid characteris ...
Changes Within the Earth
... called lava. • Violent eruption can have lasting impacts on the physical makeup of the mountain and land surrounding it. ...
... called lava. • Violent eruption can have lasting impacts on the physical makeup of the mountain and land surrounding it. ...
Review Sheet Quiz 2
... 4) Earthquakes are uniformly distributed over the surface of the Earth. a) True b) False 5) Maps of global earthquake occurrence produced before 1900 accurately indicated which of these: a) mid-ocean ridges b) deep earthquake zones c) subduction zones d) core ruptures 6) The deepest earthquakes occu ...
... 4) Earthquakes are uniformly distributed over the surface of the Earth. a) True b) False 5) Maps of global earthquake occurrence produced before 1900 accurately indicated which of these: a) mid-ocean ridges b) deep earthquake zones c) subduction zones d) core ruptures 6) The deepest earthquakes occu ...
12/9 Convection Currents
... one complete loop of convection current. Use the figure to answer the questions that follow. ...
... one complete loop of convection current. Use the figure to answer the questions that follow. ...
EGU2017-5944
... When combined with information from mineral physics and geodynamics, seismic anisotropy is one of the most direct ways to constrain mantle deformation and flow. However, it can be challenging to image it globally due to limited data’s sensitivity and difficulties in separating shallow and deep Earth ...
... When combined with information from mineral physics and geodynamics, seismic anisotropy is one of the most direct ways to constrain mantle deformation and flow. However, it can be challenging to image it globally due to limited data’s sensitivity and difficulties in separating shallow and deep Earth ...
Homework 1
... 3. How does the crust/mantle classification of the Earth differ from the lithosphere/asthenosphere classification? ...
... 3. How does the crust/mantle classification of the Earth differ from the lithosphere/asthenosphere classification? ...
Large igneous province
A large igneous province (LIP) is an extremely large accumulation of igneous rocks, including liquid rock (intrusive) or volcanic rock formations (extrusive), when hot magma extrudes from inside the Earth and flows out. The source of many or all LIPs is variously attributed to mantle plumes or to processes associated with plate tectonics. Types of LIPs can include large volcanic provinces (LVP), created through flood basalt and large plutonic provinces (LPP). Eleven distinct flood basalt episodes occurred in the past 250 million years, creating volcanic provinces, which coincided with mass extinctions in prehistoric times. Formation depends on a range of factors, such as continental configuration, latitude, volume, rate, duration of eruption, style and setting (continental vs. oceanic), the preexisting climate state, and the biota resilience to change.