Plate Tectonics
... 3. As molten rock rises from the rift in an MOR, it quickly cools and hardens and its magnetic orientation becomes fixed. ...
... 3. As molten rock rises from the rift in an MOR, it quickly cools and hardens and its magnetic orientation becomes fixed. ...
Announcements
... – Lithosphere (solid crust and upper mantle) is broken into plates. – Tectonic Plate- A large, solid piece of the earth’s crust that includes the continents and ocean floor. – These plates float or ride on the asthenosphere. ...
... – Lithosphere (solid crust and upper mantle) is broken into plates. – Tectonic Plate- A large, solid piece of the earth’s crust that includes the continents and ocean floor. – These plates float or ride on the asthenosphere. ...
Plate Tectonics The Earth` crust is broken into various chunks called
... Plate Tectonics Major Plates: Eurasian Plate – found under the continents of Europe and Asia Indo-Austrailian Plate – found under India, the Indian Ocean, and ...
... Plate Tectonics Major Plates: Eurasian Plate – found under the continents of Europe and Asia Indo-Austrailian Plate – found under India, the Indian Ocean, and ...
Day 2 Plate Tectonics 11-12
... subducts underneath the continental lithosphere • Oceanic lithosphere heats and dehydrates as it subsides • The melt rises forming volcanism • Ex. - The Andes ...
... subducts underneath the continental lithosphere • Oceanic lithosphere heats and dehydrates as it subsides • The melt rises forming volcanism • Ex. - The Andes ...
Plate Tectonics Vocabulary Terms
... It was first put out by Abraham Ortelius It was first introduced in 1596 Plate tectonics helped the theory of the continental drift. ...
... It was first put out by Abraham Ortelius It was first introduced in 1596 Plate tectonics helped the theory of the continental drift. ...
Plate Movement
... Earthquakes and volcanoes occur mostly where plates meet. The age of the seafloor. ...
... Earthquakes and volcanoes occur mostly where plates meet. The age of the seafloor. ...
Plate Tectonics Chapter 1 Study Guide Section 1 Earth`s Interior In
... What is sonar used for? _________________________________________________________________ The process that continually adds new material to the ocean floor is called _______________________. The process by which the ocean floor sinks into the mantle is called _____________________________. ...
... What is sonar used for? _________________________________________________________________ The process that continually adds new material to the ocean floor is called _______________________. The process by which the ocean floor sinks into the mantle is called _____________________________. ...
1. Earth`s plates are made up of the crust and the upper mantle
... 1. Earth's plates are made up of the crust and the upper mantle, called the _____. a) subduction zone b) transform fault c) asthenosphere d) lithosphere 2. Which form of stress results from opposite and equal forces that do not act along the same line? a) shear b) fault c) fold d) tension 3. Tectoni ...
... 1. Earth's plates are made up of the crust and the upper mantle, called the _____. a) subduction zone b) transform fault c) asthenosphere d) lithosphere 2. Which form of stress results from opposite and equal forces that do not act along the same line? a) shear b) fault c) fold d) tension 3. Tectoni ...
Warm up pg. 86 - Educator Pages
... and being replaced by cooler matter Denser matter sinks while less dense rises Thought to be the driving mechanism of plate movements Flow only at a few cm per year ...
... and being replaced by cooler matter Denser matter sinks while less dense rises Thought to be the driving mechanism of plate movements Flow only at a few cm per year ...
The Changing Earth
... Earth DOESN’T get larger because oceanic crust is destroyed along deep-ocean trenches, where the oceanic plates sink. ...
... Earth DOESN’T get larger because oceanic crust is destroyed along deep-ocean trenches, where the oceanic plates sink. ...
plate techtonics - Mid
... • Coming from the Latin word, tectonicus, plate tectonics essentially deals with the large scale motions of earths lithosphere ...
... • Coming from the Latin word, tectonicus, plate tectonics essentially deals with the large scale motions of earths lithosphere ...
Continental Drift and Plate Tectonics
... sinks (is subducted) under another. The location where sinking of a plate occurs is called a subduction zone. This causes a recycling of the crust. c. Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other. These sliding plates are conn ...
... sinks (is subducted) under another. The location where sinking of a plate occurs is called a subduction zone. This causes a recycling of the crust. c. Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other. These sliding plates are conn ...
Plate Tectonics - Tuslaw Local School District
... • Remember what a theory was? – A scientific Theory is a well tested concept that explains many observations. • So, the Theory of Plate Tectonics is … – Pieces of the Earth’s Lithosphere are in slow, constant motion, driven by convection currents in the mantle. ...
... • Remember what a theory was? – A scientific Theory is a well tested concept that explains many observations. • So, the Theory of Plate Tectonics is … – Pieces of the Earth’s Lithosphere are in slow, constant motion, driven by convection currents in the mantle. ...
Plate Tectonics
... basins. Gas and dust from large volcanoes can change the atmosphere. The solid crust of the earth—including both the continents and the ocean basins— consists of separate plates that ride on a denser, hot, gradually deformable layer of the earth. The crust sections move very slowly, pressing against ...
... basins. Gas and dust from large volcanoes can change the atmosphere. The solid crust of the earth—including both the continents and the ocean basins— consists of separate plates that ride on a denser, hot, gradually deformable layer of the earth. The crust sections move very slowly, pressing against ...
Continental Drift and Plate Tectonics Notes
... The seafloor slowly grows outward from mid-ocean ridges as new crust is formed, pushing the continents along for the ride. ...
... The seafloor slowly grows outward from mid-ocean ridges as new crust is formed, pushing the continents along for the ride. ...
Plate Tectonics
... The bottom portion of the Lithosphere was renamed and called the Asthenosphere and it has plastic characteristics, thus allowing the plates of the earth to float on top and move! ...
... The bottom portion of the Lithosphere was renamed and called the Asthenosphere and it has plastic characteristics, thus allowing the plates of the earth to float on top and move! ...
Name: : Earth Science Mr. Herman Exeter SHS Chapter 9.2 Plate
... What are the three types of plates boundaries? ...
... What are the three types of plates boundaries? ...
File
... its name • Color each legend and matching mountains or fossils • Cut out the continents • Piece the continents back ...
... its name • Color each legend and matching mountains or fossils • Cut out the continents • Piece the continents back ...
Unit 7 Study Guide Answer Key
... II. Plate Tectonics 6. The “Theory of Plate Tectonics” is the theory that pieces of the Earth’s lithosphere, called plates, move about slowly on top of the asthenosphere. Evidence to support this includes: the mid-ocean ridge, sea-floor spreading, and subduction of oceanic plates. 7. New sea floor i ...
... II. Plate Tectonics 6. The “Theory of Plate Tectonics” is the theory that pieces of the Earth’s lithosphere, called plates, move about slowly on top of the asthenosphere. Evidence to support this includes: the mid-ocean ridge, sea-floor spreading, and subduction of oceanic plates. 7. New sea floor i ...
Ch. 7 Study Guide - Lindbergh Schools
... • Moved the graham crackers back towards each other and some of the “mantle” (icing) squished or oozed up between the 2 cracker (mountains) • Form where 2 plates Collide or Come together • Both plates are equally dense, so neither subduct (sink) they will both uplift (mountains) • Himalayas are an e ...
... • Moved the graham crackers back towards each other and some of the “mantle” (icing) squished or oozed up between the 2 cracker (mountains) • Form where 2 plates Collide or Come together • Both plates are equally dense, so neither subduct (sink) they will both uplift (mountains) • Himalayas are an e ...
Plate Tectonics Lecture
... theory of seafloor spreading which states that new oceanic crust is formed at ocean ridges and destroyed at deep-sea trenches. Convection currents in the mantel drive Magma toward surface along the ocean ridge where it cracks and spreads apart. ...
... theory of seafloor spreading which states that new oceanic crust is formed at ocean ridges and destroyed at deep-sea trenches. Convection currents in the mantel drive Magma toward surface along the ocean ridge where it cracks and spreads apart. ...
Evidence for a Plate Tectonics Debate - IG
... floats away. In essence, this is how landmasses may have split and broken away from a larger piece in the geological past, millions of years ago. Although our planet Earth has been around for more than four billion years, in our vision it would never be the same after 1912. In that year, Alfred Wege ...
... floats away. In essence, this is how landmasses may have split and broken away from a larger piece in the geological past, millions of years ago. Although our planet Earth has been around for more than four billion years, in our vision it would never be the same after 1912. In that year, Alfred Wege ...
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.