Earth Science Chapter 17: Plate Tectonics
... The differences in density of the crustal material affect how they converge ...
... The differences in density of the crustal material affect how they converge ...
Chapter 8 Study Guide – Earthquakes 1. What is an earthquake
... 15. What are subducting plates? Why do they occur? Subduction is where one plate is pulled down below the surface; one type of crust/lithosphere is more dense than the other (See #16 on Chapter 8) 16. Where are convergent boundaries found? Divergent boundaries? Transform fault boundaries? Convergent ...
... 15. What are subducting plates? Why do they occur? Subduction is where one plate is pulled down below the surface; one type of crust/lithosphere is more dense than the other (See #16 on Chapter 8) 16. Where are convergent boundaries found? Divergent boundaries? Transform fault boundaries? Convergent ...
Where does subduction initiate and die? Insights from global
... Our calculations indicate that the presence of the continents alterns stress distribution within a certain distance from the margins. Intra-oceanic subudction initiation is favorable during super-continent cycles while the initiation at passive continental margin prevails when continents are dispers ...
... Our calculations indicate that the presence of the continents alterns stress distribution within a certain distance from the margins. Intra-oceanic subudction initiation is favorable during super-continent cycles while the initiation at passive continental margin prevails when continents are dispers ...
Obj. 2.1.1 Layers of the Earth A
... a. Hot material and cold material rises in the mantle b. Hot material sinks and cold material rises in the mantle c. Hot material and cold material sink in the mantle. d. Hot material rises and cold materials sink in the mantle ____15. Scientist state that _______________________ are responsible for ...
... a. Hot material and cold material rises in the mantle b. Hot material sinks and cold material rises in the mantle c. Hot material and cold material sink in the mantle. d. Hot material rises and cold materials sink in the mantle ____15. Scientist state that _______________________ are responsible for ...
Crust - www .alexandria .k12 .mn .us
... Basalt is much denser than the granite. Because of this the less dense continents ride on the denser oceanic plates. ...
... Basalt is much denser than the granite. Because of this the less dense continents ride on the denser oceanic plates. ...
Earth’s Interior PowerPoint - Marcia's Science Teaching
... Basalt is much denser than the granite. Because of this the less dense continents ride on the denser oceanic plates. ...
... Basalt is much denser than the granite. Because of this the less dense continents ride on the denser oceanic plates. ...
Cornell Notes Topic/Objective: The Theory of Plate Tectonics Name
... When an __________ plate and a ____________ plate collide, the denser oceanic plate subducts under the edge of the continent, creating a deep ______________ and a line of _______________ above the subducting plate on the edge of the continent. ...
... When an __________ plate and a ____________ plate collide, the denser oceanic plate subducts under the edge of the continent, creating a deep ______________ and a line of _______________ above the subducting plate on the edge of the continent. ...
Pre-Test: Chapter 7-Plate Tectonics
... 3. Evidence for sea-floor spreading has come from a. fossils in South America and Africa. c. ancient climatic conditions. b. magnetic minerals on the ocean floor. d. the breakup of Pangaea. ...
... 3. Evidence for sea-floor spreading has come from a. fossils in South America and Africa. c. ancient climatic conditions. b. magnetic minerals on the ocean floor. d. the breakup of Pangaea. ...
The Layers of the Earth
... Basalt is much denser than the granite. Because of this the less dense continents ride on the denser oceanic plates. ...
... Basalt is much denser than the granite. Because of this the less dense continents ride on the denser oceanic plates. ...
Plate Tectonics
... Lithospheric plates move away from a spreading center by gliding over the weak, plastic asthenosphere. New lithosphere forms at the ridge, and is thin at this area, but thickens as it becomes cooler away from the ridge. Note subduction zones. Fig. 6-10, p.133 ...
... Lithospheric plates move away from a spreading center by gliding over the weak, plastic asthenosphere. New lithosphere forms at the ridge, and is thin at this area, but thickens as it becomes cooler away from the ridge. Note subduction zones. Fig. 6-10, p.133 ...
Plate Tectonics PP Ch 3
... will thin in the middle until it is stressed so much that it breaks. ...
... will thin in the middle until it is stressed so much that it breaks. ...
Plate tectonics assessment
... The inner core is the __________ of the Earth. It is made of solid iron and nickel. This is the _______________ part of the Earth with temperatures of around _________°C. The outer core is made up of liquid iron and nickel. The _______________ is the largest section of the Earth and is made up of __ ...
... The inner core is the __________ of the Earth. It is made of solid iron and nickel. This is the _______________ part of the Earth with temperatures of around _________°C. The outer core is made up of liquid iron and nickel. The _______________ is the largest section of the Earth and is made up of __ ...
Introduction
... – Core: iron and nickel composition The crust and mantle are further divided into “spheres” depending on density and physical state (e.g. solid or molten). ...
... – Core: iron and nickel composition The crust and mantle are further divided into “spheres” depending on density and physical state (e.g. solid or molten). ...
Geology Unit Study Guide - Mr. Ruggiero`s Science 8-2
... Tension Stresses – Normal faults – Fault-Block Mountains ...
... Tension Stresses – Normal faults – Fault-Block Mountains ...
Continental drift and plate tectonics
... floor, forming a ridge. Some peaks along mid-ocean ridges rise more than 3 kilometres above the ocean floor. Oceanic crust Heavy oceanic crust is formed from mantle material rising through plate boundaries. The oceanic crust spreads away from the ridge as more and more crust forms. The spreading oce ...
... floor, forming a ridge. Some peaks along mid-ocean ridges rise more than 3 kilometres above the ocean floor. Oceanic crust Heavy oceanic crust is formed from mantle material rising through plate boundaries. The oceanic crust spreads away from the ridge as more and more crust forms. The spreading oce ...
From your observations above, determine the following
... Essential Question 2: What is the evidence of location and interaction of tectonic plates? Enduring Understanding: Google Earth Plate Tectonics Project: ___/28 Select one of the earth locations below, or suggest an alternative. Each group must have a different place to research. Use Google Earth to ...
... Essential Question 2: What is the evidence of location and interaction of tectonic plates? Enduring Understanding: Google Earth Plate Tectonics Project: ___/28 Select one of the earth locations below, or suggest an alternative. Each group must have a different place to research. Use Google Earth to ...
Earth`s Layers Unit Study Guide 1) List Earth`s layers in order from
... The oceanic plate would sink, and the less dense continental plate would rise about the oceanic plate. 13) The inner core is the layer with the highest temperature, so why is it solid iron instead of molten iron? The pressure is so high in the inner core that the molten iron is pressed into a sphere ...
... The oceanic plate would sink, and the less dense continental plate would rise about the oceanic plate. 13) The inner core is the layer with the highest temperature, so why is it solid iron instead of molten iron? The pressure is so high in the inner core that the molten iron is pressed into a sphere ...
2nd 6 week test review 2015-2016 ppt
... What are tectonic plates? • Tectonic plates are large plates of rock that make up the foundation of the Earth's crust and the shape of the continents. The tectonic plates comprise the bottom of the crust and the top of the Earth's mantle. ...
... What are tectonic plates? • Tectonic plates are large plates of rock that make up the foundation of the Earth's crust and the shape of the continents. The tectonic plates comprise the bottom of the crust and the top of the Earth's mantle. ...
Plate Tectonics
... • These boundaries are so active that stress builds up and causes earthquakes. • In addition, the boundaries are areas of extreme heat flow, causing volcanoes. ...
... • These boundaries are so active that stress builds up and causes earthquakes. • In addition, the boundaries are areas of extreme heat flow, causing volcanoes. ...
Chapter 5 lesson 1
... Ring of A major belt of volcanoes that rims the Pacific Ocean Fire Island A string of volcanoes that form as the result of subduction of one oceanic Arc plate beneath another oceanic plate Hot An area where magma from deep within the mantle melts through the Spot crust above it Key Idea: Volcanoes o ...
... Ring of A major belt of volcanoes that rims the Pacific Ocean Fire Island A string of volcanoes that form as the result of subduction of one oceanic Arc plate beneath another oceanic plate Hot An area where magma from deep within the mantle melts through the Spot crust above it Key Idea: Volcanoes o ...
Crust - MentorMob
... Basalt is much denser than the granite. Because of this the less dense continents ride on the denser oceanic plates. ...
... Basalt is much denser than the granite. Because of this the less dense continents ride on the denser oceanic plates. ...
Chapter 33 Plate Tectonics
... • The material deposited on the top of the ridge slides downs from the rise pushing on the plate ...
... • The material deposited on the top of the ridge slides downs from the rise pushing on the plate ...
Document
... 27. Describe the rock that forms when magma cools to form new oceanic lithosphere. _______________________________________________________________ _______________________________________________________________ 28. A narrow area that forms where the plates at a divergent boundary separate is called ...
... 27. Describe the rock that forms when magma cools to form new oceanic lithosphere. _______________________________________________________________ _______________________________________________________________ 28. A narrow area that forms where the plates at a divergent boundary separate is called ...
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.