Earth Science and M.E.A.P
... • It was not until the 1950s that evidence by different scientists helped to support the theory of continental drift. • Scientists began to use new technology, such as sonar, to map the ocean floor. • Using this technology, scientists made new discoveries that led to the understanding of a mechanis ...
... • It was not until the 1950s that evidence by different scientists helped to support the theory of continental drift. • Scientists began to use new technology, such as sonar, to map the ocean floor. • Using this technology, scientists made new discoveries that led to the understanding of a mechanis ...
Plate Tectonics
... • If you could survive the temperatures (over 8,000 degrees F) and the pressure (3,000,000 times the force of gravity) and you could “climb” out the other side (down is towards the center of Earth), then YES! • If you could just freefall all the way ...
... • If you could survive the temperatures (over 8,000 degrees F) and the pressure (3,000,000 times the force of gravity) and you could “climb” out the other side (down is towards the center of Earth), then YES! • If you could just freefall all the way ...
OUTDOOR SCIENCE SCHOOL VOC (#1 – Test)
... causes the rigid area of the crust to crack and form the lithospheric plates (b) asthenosphere – liquid, tar-like layer of the upper mantle below the lithosphere creating a convection current movement, which causes the plates to move (c) mesosphere – lower mantle, almost solid-like above the core (d ...
... causes the rigid area of the crust to crack and form the lithospheric plates (b) asthenosphere – liquid, tar-like layer of the upper mantle below the lithosphere creating a convection current movement, which causes the plates to move (c) mesosphere – lower mantle, almost solid-like above the core (d ...
Problem Set #1 due Mon, 2/09/09 Please answer the following
... 1 (incomplete, poorly written, many errors) 2 (complete with some errors) 3 (well written and no more than 1 or 2 minor errors) ...
... 1 (incomplete, poorly written, many errors) 2 (complete with some errors) 3 (well written and no more than 1 or 2 minor errors) ...
Evidence for Plate Tectonics
... together at the south pole, striations point in the same direction ...
... together at the south pole, striations point in the same direction ...
Description Crust Mantle Liquid Outer Core Solid
... The thin outermost solid layer of the earth. Represents less than 1% of the earth’s volume, and varies in thickness from approx 5km beneath the ocean to 60km beneath mountain chains. ...
... The thin outermost solid layer of the earth. Represents less than 1% of the earth’s volume, and varies in thickness from approx 5km beneath the ocean to 60km beneath mountain chains. ...
Geomorphology - Cloudfront.net
... collide with other plates heading downward, creating a deep abyss. These abysses are generally the deepest parts of the oceans’ floor. Other times, plates will collide and form mountains (such as the Andes of South America). ...
... collide with other plates heading downward, creating a deep abyss. These abysses are generally the deepest parts of the oceans’ floor. Other times, plates will collide and form mountains (such as the Andes of South America). ...
Why do you think Earth has layers?
... - least dense of all the layers - Oceanic Crust – mostly Basalt bedrock (more dense) - Continental Crust – mostly Granite Bedrock (less dense) The deepest hole drilled by man is 7.6 mi deep (Kola Peninsula, Russia). That is only 1% of the Earth’s entire thickness. ...
... - least dense of all the layers - Oceanic Crust – mostly Basalt bedrock (more dense) - Continental Crust – mostly Granite Bedrock (less dense) The deepest hole drilled by man is 7.6 mi deep (Kola Peninsula, Russia). That is only 1% of the Earth’s entire thickness. ...
plate tectonics
... the crest of ridges represent divergent plate boundaries. • Rift valleys are deep faulted structures found along the axes of divergent plate boundaries. They can develop on the seafloor or on land. • Seafloor spreading produces new oceanic lithosphere. ...
... the crest of ridges represent divergent plate boundaries. • Rift valleys are deep faulted structures found along the axes of divergent plate boundaries. They can develop on the seafloor or on land. • Seafloor spreading produces new oceanic lithosphere. ...
File
... all directions. These can be detected by seismic stations. On this map the seismic stations are located at points A, B and C near a large lake. The waves were detected at A after 12 minutes, B after 8 minutes and C after 6 minutes. Where is the epicentre of the earthquake likely to be? ...
... all directions. These can be detected by seismic stations. On this map the seismic stations are located at points A, B and C near a large lake. The waves were detected at A after 12 minutes, B after 8 minutes and C after 6 minutes. Where is the epicentre of the earthquake likely to be? ...
Lesson 2 - Layers of the Earth
... Which layer(s) are part of the lithosphere? Crust, Tectonic plates (uppermost Mantle) ...
... Which layer(s) are part of the lithosphere? Crust, Tectonic plates (uppermost Mantle) ...
Plate Tectonics - Georgia Standards
... by plotting the occurrence of earthquakes and volcanoes. Most earthquakes happen along the boundaries of continental plates. The San Andreas Fault Zone in California is at the place where one plate slides along the edge of another. The volcanic islands of Japan are created as one plate subducts (sli ...
... by plotting the occurrence of earthquakes and volcanoes. Most earthquakes happen along the boundaries of continental plates. The San Andreas Fault Zone in California is at the place where one plate slides along the edge of another. The volcanic islands of Japan are created as one plate subducts (sli ...
Learning Objectives Learning Activities Learning Assessments
... plate movement causes major geological events and land features such as mountains, rift valleys, ocean basins, midocean ridges, ocean trenches, volcanic eruptions, and earthquakes. Application Learners will compare and contrast divergent, convergent, and transform plate boundaries. ...
... plate movement causes major geological events and land features such as mountains, rift valleys, ocean basins, midocean ridges, ocean trenches, volcanic eruptions, and earthquakes. Application Learners will compare and contrast divergent, convergent, and transform plate boundaries. ...
Volcanoes and Igneous Activity Earth - Chapter 4
... • If the volcanoes emerge as islands, a volcanic island arc is formed (Japan, Aleutian islands, Tonga islands) ...
... • If the volcanoes emerge as islands, a volcanic island arc is formed (Japan, Aleutian islands, Tonga islands) ...
Volcanoes and Igneous Activity Earth
... • Seven major lithospheric plates • Plates are in motion and continually changing in shape and size • Largest plate is the Pacific plate • Several plates include an entire continent plus a large area of seafloor ...
... • Seven major lithospheric plates • Plates are in motion and continually changing in shape and size • Largest plate is the Pacific plate • Several plates include an entire continent plus a large area of seafloor ...
Plate Tectonics
... •Developed theory of plate tectonics – idea that pieces of Earth’s crust broken up into pieces •Explains formation, movement, and subduction of plates •As plates move they collide, pull apart, grind past each other •Where breaks occur in crust along boundary called faults ...
... •Developed theory of plate tectonics – idea that pieces of Earth’s crust broken up into pieces •Explains formation, movement, and subduction of plates •As plates move they collide, pull apart, grind past each other •Where breaks occur in crust along boundary called faults ...
Reading Record Assessment
... (Earth is made up of layers called the core, mantle, and crust. The core is the centre of Earth and is surrounded by the mantle. The top layer of Earth is the crust.) ...
... (Earth is made up of layers called the core, mantle, and crust. The core is the centre of Earth and is surrounded by the mantle. The top layer of Earth is the crust.) ...
CONSTRUCTING A SEA-FLOOR SPREADING MODEL
... The lithosphere is composed of the crust and upper mantle and is broken into large pieces know as plates. The lithospheric plates, carrying both oceanic and continental rock, “float” on the plastic part of the mantle below the lithosphere. Plates move together, separate, and slide past each other cr ...
... The lithosphere is composed of the crust and upper mantle and is broken into large pieces know as plates. The lithospheric plates, carrying both oceanic and continental rock, “float” on the plastic part of the mantle below the lithosphere. Plates move together, separate, and slide past each other cr ...
To get a better understanding of this whole process, I would like you
... c. Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other. d. Plate boundary zones -- broad belts in which boundaries are not well defined and the effects of plate interaction are unclear. Divergent Boundaries 2. Give a thorough descrip ...
... c. Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other. d. Plate boundary zones -- broad belts in which boundaries are not well defined and the effects of plate interaction are unclear. Divergent Boundaries 2. Give a thorough descrip ...
Plate Tectonics Internet Scavenger Hunt - wikifuller
... 3. The boundaries between two colliding plates are called _____. a. divergent c. a transform fault b. convergent d. lithosphere 4. Subduction results in the formation of ____. a. a deep-sea trench c. a rift valley b. a magnetic reversal d. new continental crust 5. The subduction of Oceanic plate ben ...
... 3. The boundaries between two colliding plates are called _____. a. divergent c. a transform fault b. convergent d. lithosphere 4. Subduction results in the formation of ____. a. a deep-sea trench c. a rift valley b. a magnetic reversal d. new continental crust 5. The subduction of Oceanic plate ben ...
Notes: Plate Tectonics - Riverdale Middle School
... • Heat from the core and the mantle itself causes convection currents in the mantle. • Mantle rock rises slowly from the bottom of the mantle toward the top. The hot rock eventually cools and sinks back through the mantle. Over and over the cycle of rising and sinking takes place. • Convection curr ...
... • Heat from the core and the mantle itself causes convection currents in the mantle. • Mantle rock rises slowly from the bottom of the mantle toward the top. The hot rock eventually cools and sinks back through the mantle. Over and over the cycle of rising and sinking takes place. • Convection curr ...
The Restless Earth
... when two tectonic plates separate • New sea floor forms at divergent boundaries • Mid-ocean ridges are the most common type of divergent boundary • Transform boundary – the boundary between when two tectonic plates slide past each other horizontally • San Andreas Fault – marks the place where the Pa ...
... when two tectonic plates separate • New sea floor forms at divergent boundaries • Mid-ocean ridges are the most common type of divergent boundary • Transform boundary – the boundary between when two tectonic plates slide past each other horizontally • San Andreas Fault – marks the place where the Pa ...
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.