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... b. new convergent boundaries form after continents collide. c. heat builds up in Earth’s interior. d. continental lithosphere subducts ...
... b. new convergent boundaries form after continents collide. c. heat builds up in Earth’s interior. d. continental lithosphere subducts ...
Vocabulary Review
... the rate of change of the position of an object; the amount of distance covered in a given period of time the total distance traveled divided by total time of travel A representation of how both speed and distance change with time; the slope of the graph can be used to describe the speed of an objec ...
... the rate of change of the position of an object; the amount of distance covered in a given period of time the total distance traveled divided by total time of travel A representation of how both speed and distance change with time; the slope of the graph can be used to describe the speed of an objec ...
Layers of the Earth - Mrs. Rasmussen Science Class
... The crust is the rocky, outermost layer of the earth. Oceans and soil sit on top of the crust. This layer is divided into two types: oceanic crust and continental crust. The crust is relatively thin compared to the earths others layers. Oceanic crust averages 7 km in thickness, while continental cru ...
... The crust is the rocky, outermost layer of the earth. Oceans and soil sit on top of the crust. This layer is divided into two types: oceanic crust and continental crust. The crust is relatively thin compared to the earths others layers. Oceanic crust averages 7 km in thickness, while continental cru ...
Editorial – Alfred Wegener`s Theory By: Kelrin Li
... In the 1960’s, a Canadian, J. Tuzo Wilson further developed the theory of the continental drift. In 1968, he developed a new theory called “plate tectonics” that helps explain most geologic processes. This theory states that Earth’s outer shell is made of 20 plates; most being plates being made of a ...
... In the 1960’s, a Canadian, J. Tuzo Wilson further developed the theory of the continental drift. In 1968, he developed a new theory called “plate tectonics” that helps explain most geologic processes. This theory states that Earth’s outer shell is made of 20 plates; most being plates being made of a ...
Read the article, “What Makes Earthquakes”
... the rigid crust. Like a cracked eggshell, the crust is broken into jagged sections, which are called plates. They float on top of the mantle, drifting roughly as fast as your fingernails grow. The movement is usually smooth, but when plates grind together they can bump and jerk, which leads to the s ...
... the rigid crust. Like a cracked eggshell, the crust is broken into jagged sections, which are called plates. They float on top of the mantle, drifting roughly as fast as your fingernails grow. The movement is usually smooth, but when plates grind together they can bump and jerk, which leads to the s ...
Erosion and Plate tectonics part 2
... --Land on Earth is ______________________! Instead, it is several pieces of rock ____________ on an ocean of magma. --Plate Tectonics studies how these rock sections (called _________________) move and ___________________. Continental Drift -- of years ago, Earth was _____________________ called Pan ...
... --Land on Earth is ______________________! Instead, it is several pieces of rock ____________ on an ocean of magma. --Plate Tectonics studies how these rock sections (called _________________) move and ___________________. Continental Drift -- of years ago, Earth was _____________________ called Pan ...
Recall Hypsometric Curve?
... vs. Rheologic layers • Rheologic layers on left: • Lithosphere: 100-150 km thick – Includes crust and rigid upper mantle – This is the rigid plate in plate tectonics – Base is defined by 1200º 1200ºC boundary ...
... vs. Rheologic layers • Rheologic layers on left: • Lithosphere: 100-150 km thick – Includes crust and rigid upper mantle – This is the rigid plate in plate tectonics – Base is defined by 1200º 1200ºC boundary ...
Divergent Boundaries - Phil Farquharson`s Geo
... Structure of the oceanic crust Interactions between seawater and oceanic crust Seawater circulates downward through the highly fractured crust Basaltic rock is altered by hydrothermal metamorphism Hydrothermal fluids dissolve ions of various metals and precipitate them on the seafloor as particle-fi ...
... Structure of the oceanic crust Interactions between seawater and oceanic crust Seawater circulates downward through the highly fractured crust Basaltic rock is altered by hydrothermal metamorphism Hydrothermal fluids dissolve ions of various metals and precipitate them on the seafloor as particle-fi ...
ESS 202 - Earthquakes
... Basics of Plate Tectonics • There are about 15 major plates. • Their boundaries are the sites of earthquakes and volcanoes. Why? • Three types of plate boundaries – convergent -> subduction -> destruction of plate (oceanic plate) – divergent -> sea-floor spreading -> creation of plate (oceanic plat ...
... Basics of Plate Tectonics • There are about 15 major plates. • Their boundaries are the sites of earthquakes and volcanoes. Why? • Three types of plate boundaries – convergent -> subduction -> destruction of plate (oceanic plate) – divergent -> sea-floor spreading -> creation of plate (oceanic plat ...
Captain Curiosity - Curiosity Zone of Ashburn VA
... by the mantle, which is made of magma (molten rock). Next to the mantle is a thin outside crust; this is the layer we live on. EVER WONDER WHETHER THE EARTH’S CRUST MOVES? The Earth’s crust is broken into several major plates, called “tectonic plates,” that float on the layer of magma underneath. Th ...
... by the mantle, which is made of magma (molten rock). Next to the mantle is a thin outside crust; this is the layer we live on. EVER WONDER WHETHER THE EARTH’S CRUST MOVES? The Earth’s crust is broken into several major plates, called “tectonic plates,” that float on the layer of magma underneath. Th ...
PT Teacher Clarification
... C2 A plate’s size and/or shape can be changed over time. C2.1 An individual plate (and its continent if present) may split apart into two separate plates (and two separate continents) (e.g., South America and Africa were once part of the same plate, but were split apart [splitting is the explanation ...
... C2 A plate’s size and/or shape can be changed over time. C2.1 An individual plate (and its continent if present) may split apart into two separate plates (and two separate continents) (e.g., South America and Africa were once part of the same plate, but were split apart [splitting is the explanation ...
Plate Tectonics - Cornell Geological Sciences
... Motion between plates will change along the boundary. ...
... Motion between plates will change along the boundary. ...
Structural Geology, Tectonics and Regional Geology
... We are a dynamic group interested in a wide variety of research topics in geology The research of the group was initially focused on the distinction and structural characterization of sedimentary mélanges and tectonic mélanges/broken formations cropping out in the Northern Apennines. Then, to detect ...
... We are a dynamic group interested in a wide variety of research topics in geology The research of the group was initially focused on the distinction and structural characterization of sedimentary mélanges and tectonic mélanges/broken formations cropping out in the Northern Apennines. Then, to detect ...
Orogenies as records of plate collisions
... metamorphosed from the regional heat and pressure generated from the collision. Thrust faults flank the metamorphic belt. The diagram does not show the presence of volcanic rocks within the mtn ...
... metamorphosed from the regional heat and pressure generated from the collision. Thrust faults flank the metamorphic belt. The diagram does not show the presence of volcanic rocks within the mtn ...
10-5 Stations.notebook
... B. depth-no data with dimensions C. size-no data with dimensions D. density-table has mass and volume, mass/volume is density ...
... B. depth-no data with dimensions C. size-no data with dimensions D. density-table has mass and volume, mass/volume is density ...
Seafloor spreading - School of Ocean and Earth Science and
... paper by Bob Dietz (Dietz, 1961), it offered a simple explanation for many problems with the prevailing paradigm that the Earth was a mostly static, slowly contracting planet, with fixed continents and old ocean basins, and no large-scale horizontal displacements. This paradigm had previously been c ...
... paper by Bob Dietz (Dietz, 1961), it offered a simple explanation for many problems with the prevailing paradigm that the Earth was a mostly static, slowly contracting planet, with fixed continents and old ocean basins, and no large-scale horizontal displacements. This paradigm had previously been c ...
printer-friendly sample test questions
... Part B will include; density and rock type (Granite for Continental, Basalt for Oceanic). Continental crust (primarily granite) is less dense than Oceanic crust (primarily basalt). Part C will include; The core is the source of heat (from radioactive decay) that drives the convection currents in the ...
... Part B will include; density and rock type (Granite for Continental, Basalt for Oceanic). Continental crust (primarily granite) is less dense than Oceanic crust (primarily basalt). Part C will include; The core is the source of heat (from radioactive decay) that drives the convection currents in the ...
What are the causes of plate motion and what
... WHAT ARE THE CAUSES OF PLATE MOTION AND WHAT FEATURES DO THEY FORM? Plate tectonics is a scientific theory that describes the large-scale motions of Earth's lithosphere. The model builds on the concepts of continental drift, developed during the first few decades of the 20th century. The geoscienti ...
... WHAT ARE THE CAUSES OF PLATE MOTION AND WHAT FEATURES DO THEY FORM? Plate tectonics is a scientific theory that describes the large-scale motions of Earth's lithosphere. The model builds on the concepts of continental drift, developed during the first few decades of the 20th century. The geoscienti ...
Oreo Earth Lesson Plan
... 2. Ask students if the Oreo was the Earth what part of the cookie would represent the lithosphere and asthenosphere. a. Cookie top represents the lithosphere. Compare the cookie to the lithosphere. Hard ...
... 2. Ask students if the Oreo was the Earth what part of the cookie would represent the lithosphere and asthenosphere. a. Cookie top represents the lithosphere. Compare the cookie to the lithosphere. Hard ...
layers
... • Even the deepest oil wells are only a few kilometers deep, and the diameter of the Earth is 12,756 km. ...
... • Even the deepest oil wells are only a few kilometers deep, and the diameter of the Earth is 12,756 km. ...
Document
... Mineral resource (Ore) – a deposit of minerals that can be extracted and processed into useful materials at an affordable cost. • Deposits of nonrenewable mineral resources in the earth’s crust vary in their abundance and distribution. • High Grade Ore – high percentage of desired mineral • Low Gr ...
... Mineral resource (Ore) – a deposit of minerals that can be extracted and processed into useful materials at an affordable cost. • Deposits of nonrenewable mineral resources in the earth’s crust vary in their abundance and distribution. • High Grade Ore – high percentage of desired mineral • Low Gr ...
Question - WordPress.com
... as the plate sub-ducts, it may become JAMMED against the continental plate. Convection currents will continue to attempt to move the oceanic plate downwards, which leads to a large build up of pressure. • Eventually the PRESSURE will become too great and the oceanic plate will break free suddenly, r ...
... as the plate sub-ducts, it may become JAMMED against the continental plate. Convection currents will continue to attempt to move the oceanic plate downwards, which leads to a large build up of pressure. • Eventually the PRESSURE will become too great and the oceanic plate will break free suddenly, r ...
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.