LAYERS OF EARTH
... composition, state of matter, and thickness of each layer. Just like the skin of an apple, Earth’s crust is very thin compared to the other layers. It is about 25–70 km thick beneath on the continents. Under the oceans, the crust is only about 57 km thick. However, it is much denser. The mantle is m ...
... composition, state of matter, and thickness of each layer. Just like the skin of an apple, Earth’s crust is very thin compared to the other layers. It is about 25–70 km thick beneath on the continents. Under the oceans, the crust is only about 57 km thick. However, it is much denser. The mantle is m ...
The Third Planet
... been speculated that the Moon formed when the Earth was hit by a large asteroid or planetesimal. The material thrown out by the collision accreted to form the Moon. Since the surface layers of the Earth are more abundant in the lighter elements, the composition of Moon would be more like the surface ...
... been speculated that the Moon formed when the Earth was hit by a large asteroid or planetesimal. The material thrown out by the collision accreted to form the Moon. Since the surface layers of the Earth are more abundant in the lighter elements, the composition of Moon would be more like the surface ...
Tectonic Earthquakes of the Pacific Northwest The Pacific Northwest
... What causes them?. We will show how subduction of the Juan de Fuca plate: basin & range extension, invasion of crustal blocks from California, and the resistance of the Canadian crustal buttress combine to produce these earthquakes. We begin by looking at Western North America’s active plate boundar ...
... What causes them?. We will show how subduction of the Juan de Fuca plate: basin & range extension, invasion of crustal blocks from California, and the resistance of the Canadian crustal buttress combine to produce these earthquakes. We begin by looking at Western North America’s active plate boundar ...
Document
... extremely slow movements of these plates cause them to grind into one another at convergent plate boundaries, move apart at divergent plate boundaries and slide past at transform plate boundaries. Figure 15-4 ...
... extremely slow movements of these plates cause them to grind into one another at convergent plate boundaries, move apart at divergent plate boundaries and slide past at transform plate boundaries. Figure 15-4 ...
Surface volcanism data since 400 Ma as a constraint of mantle
... ⇒ Temporal evolution of the mantle density heterogeneities since 280 Myr is modeled assuming that plates sink down to the core-mantle boundary since ...
... ⇒ Temporal evolution of the mantle density heterogeneities since 280 Myr is modeled assuming that plates sink down to the core-mantle boundary since ...
Hall of Planet Earth Educator`s Guide
... transports heat from the deep interior to the surface as hot, buoyant rock rises and cooler rock sinks. This churning drives plate tectonics (the movement of rocky plates that make up the solid shell of the planet), which forms ocean basins, shifts continents, pushes up mountains, and causes volcano ...
... transports heat from the deep interior to the surface as hot, buoyant rock rises and cooler rock sinks. This churning drives plate tectonics (the movement of rocky plates that make up the solid shell of the planet), which forms ocean basins, shifts continents, pushes up mountains, and causes volcano ...
Plate Tectonics and volcanoes
... – how plates move – and where volcanoes are located • We don’t explain the “whys” and “hows” • Today we will look at why volcanoes are found at plate boundaries ...
... – how plates move – and where volcanoes are located • We don’t explain the “whys” and “hows” • Today we will look at why volcanoes are found at plate boundaries ...
Chapter 4: Plate tectonics on the terrestrial planets
... different times in the history of the planets), and surface temperatures in order to investigate under which conditions plate tectonics is a viable mechanism for the cooling of the terrestrial planets. In our models we include the effects of mantle temperature on the composition and density of melt ...
... different times in the history of the planets), and surface temperatures in order to investigate under which conditions plate tectonics is a viable mechanism for the cooling of the terrestrial planets. In our models we include the effects of mantle temperature on the composition and density of melt ...
The Engine that Drives the Earth
... is heat within the earth, which comes from two main sources. One is the residual heat left over from the formation of our planet 4.6 billion years ago. The radioactive decay of naturally occurring chemical elements in the earth—most notably uranium, thorium, and potassium—also releases energy in the ...
... is heat within the earth, which comes from two main sources. One is the residual heat left over from the formation of our planet 4.6 billion years ago. The radioactive decay of naturally occurring chemical elements in the earth—most notably uranium, thorium, and potassium—also releases energy in the ...
6TH GRADE SCIENCE – MODEL OF EARTH`S LAYERS PROJECT
... students to use everyday household materials to create their model. This model should be 3 dimensional, not a flat 2 dimensional drawing or layered construction paper composition. Students will be graded on neatness and following directions (i.e. having a 3 dimensional model, including all of the la ...
... students to use everyday household materials to create their model. This model should be 3 dimensional, not a flat 2 dimensional drawing or layered construction paper composition. Students will be graded on neatness and following directions (i.e. having a 3 dimensional model, including all of the la ...
1 Rheology: How Rocks Behave
... 3. Earth Interior Context for Deformation: The Earth has 7 major tectonic plates and several minor ones. They are approximated as undergoing rigid body motion with most deformation occurring in 10s-‐100s k ...
... 3. Earth Interior Context for Deformation: The Earth has 7 major tectonic plates and several minor ones. They are approximated as undergoing rigid body motion with most deformation occurring in 10s-‐100s k ...
S. Peacock (UBC) - Earth and Space Sciences
... • Pore pressures are likely high (~lithostatic), at least where dehydration reactions are taking place. • H2O production rates are relatively small, 100 mL per m2 column per yr • Very low permeabilities are required for significant volumes of H2O to accumulate beneath the slab interface ...
... • Pore pressures are likely high (~lithostatic), at least where dehydration reactions are taking place. • H2O production rates are relatively small, 100 mL per m2 column per yr • Very low permeabilities are required for significant volumes of H2O to accumulate beneath the slab interface ...
EARTH: natural disasters
... including ships, cars, and homes. As of press time, thousands had been confirmed dead or are missing. About 450,000 people were left homeless. Hundreds of thousands more were without power following the shutdown of several nuclear power plants ...
... including ships, cars, and homes. As of press time, thousands had been confirmed dead or are missing. About 450,000 people were left homeless. Hundreds of thousands more were without power following the shutdown of several nuclear power plants ...
KS4 Extraction of Metals 1
... Explain how the size of crystals in an igneous rock is related to the rate of cooling of molten rock. Explain why an igneous intrusion contains younger rock than the surrounding sedimentary rock Explain why sedimentary rocks may contain fossils and how the ages of the fossils found can indicate the ...
... Explain how the size of crystals in an igneous rock is related to the rate of cooling of molten rock. Explain why an igneous intrusion contains younger rock than the surrounding sedimentary rock Explain why sedimentary rocks may contain fossils and how the ages of the fossils found can indicate the ...
Intro to Plate Tectonics and Convection Cells.notebook
... Intro to Plate Tectonics and Convection Cells.notebook ...
... Intro to Plate Tectonics and Convection Cells.notebook ...
Chapter 11 Mountain Building
... ________________________ – any change in the original shape and/or size of a rock body. Every rock, no matter how strong, has a point which it will bend or break. ...
... ________________________ – any change in the original shape and/or size of a rock body. Every rock, no matter how strong, has a point which it will bend or break. ...
![Plate Tectonic: Plates and Their Consequences [8th grade]](http://s1.studyres.com/store/data/000797107_1-166d2941534dec6405959e7f27ed8e23-300x300.png)
Plate Tectonic: Plates and Their Consequences [8th grade]
... Engage: Layers of the Earth Song – As a class we’ll listen to the song twice. First time straight through and the second time looking at the lyrics and asking students to share on what they heard in the song. Pre-Assessment: Students will be given a pre-assessment on the layers of the earth, three m ...
... Engage: Layers of the Earth Song – As a class we’ll listen to the song twice. First time straight through and the second time looking at the lyrics and asking students to share on what they heard in the song. Pre-Assessment: Students will be given a pre-assessment on the layers of the earth, three m ...
Plate Tectonics: GL209 Prof. John Tarney Lecture 3: Wilson Cycle 1
... (below). This is typical of a number of crustal cross-sections across the continental shelf of the eastern Atlantic seaboard of North America, projected down to 30 km -- based largely on gravity and magnetic evidence, plus some seismic profiles -- and some extrapolation from land geology based on de ...
... (below). This is typical of a number of crustal cross-sections across the continental shelf of the eastern Atlantic seaboard of North America, projected down to 30 km -- based largely on gravity and magnetic evidence, plus some seismic profiles -- and some extrapolation from land geology based on de ...
crust. - Infobase Publishing
... The Earth consists of several layers including the inner core, outer core, mantle, and crust. The crust is a rigid layer that floats on top of the molten rock layer of the mantle. The Earth’s crust varies in thickness depending on whether it is continental crust (on the continents) or oceanic crust ...
... The Earth consists of several layers including the inner core, outer core, mantle, and crust. The crust is a rigid layer that floats on top of the molten rock layer of the mantle. The Earth’s crust varies in thickness depending on whether it is continental crust (on the continents) or oceanic crust ...
Unit Plan
... by earthquakes Identify both elements of society, technology and environment. Math Use statistics across the globe on various earthquake magnitudes to explore mean, median and mode. Dance/PE In partners, use bodies to embody tectonic plate movement as well as for better understanding the characteris ...
... by earthquakes Identify both elements of society, technology and environment. Math Use statistics across the globe on various earthquake magnitudes to explore mean, median and mode. Dance/PE In partners, use bodies to embody tectonic plate movement as well as for better understanding the characteris ...
C. Igneous Rocks
... a. Deep, weathered profile is commonly found. b. Spheroidal weathering and removal of weathered materials leave tors on ground surface. c. Mass movement usually forms barren area with gully erosion and badland. d. Found in northern Hong Kong Island and Kowloon. Peninsula, Castle Peak area, eastern a ...
... a. Deep, weathered profile is commonly found. b. Spheroidal weathering and removal of weathered materials leave tors on ground surface. c. Mass movement usually forms barren area with gully erosion and badland. d. Found in northern Hong Kong Island and Kowloon. Peninsula, Castle Peak area, eastern a ...
Name
... 1. What occurs at boundaries that slide past each other? ______________________________ 2. In the simulation, what happened to the first river that was there? _____________________ ___________________________________________________________________________ ...
... 1. What occurs at boundaries that slide past each other? ______________________________ 2. In the simulation, what happened to the first river that was there? _____________________ ___________________________________________________________________________ ...
Snack Tectonics - s3.amazonaws.com
... fruit roll up (oceanic crust which is thin and dense) graham crackers (continental crust which is thick but less dense). ...
... fruit roll up (oceanic crust which is thin and dense) graham crackers (continental crust which is thick but less dense). ...
hw attached
... 1 Earth's surface has areas of water and land. Have you ever wondered what is deep inside our planet? Earth is full of surprises. Imagine you could cut a section out of this ball of rock. You would see that it has three distinct layers: the crust, mantle, and core. 2 The first of these three layers ...
... 1 Earth's surface has areas of water and land. Have you ever wondered what is deep inside our planet? Earth is full of surprises. Imagine you could cut a section out of this ball of rock. You would see that it has three distinct layers: the crust, mantle, and core. 2 The first of these three layers ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.