Ch02%20outline
... Earth’s major tectonic plates cont. • Plates are in constant slow motion with respect to one another and are continually changing in shape and size. • Earthquakes, deformation and volcanic eruptions occur where these plates meet. • The interior of plates generally have fewer earthquakes, less deform ...
... Earth’s major tectonic plates cont. • Plates are in constant slow motion with respect to one another and are continually changing in shape and size. • Earthquakes, deformation and volcanic eruptions occur where these plates meet. • The interior of plates generally have fewer earthquakes, less deform ...
The Theory of Plate Tectonics
... Examine the locations of volcanoes, earthquakes, and folded mountains to develop an understanding of Earth’s lithosphere. Keycode: ES0801 ...
... Examine the locations of volcanoes, earthquakes, and folded mountains to develop an understanding of Earth’s lithosphere. Keycode: ES0801 ...
Plate Tectonics Part 1-maybe Jan 29
... The crust and upper mantle is made up of plates. The crust and upper mantle is called the lithosphere Scientists believe that the plates move about 2 inches per year. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. they slide on top of a somewhat fluid part ...
... The crust and upper mantle is made up of plates. The crust and upper mantle is called the lithosphere Scientists believe that the plates move about 2 inches per year. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. they slide on top of a somewhat fluid part ...
Plate Boundaries Chart/Notes
... Ridges (deep oceanic ridges) Underwater mountain ranges where crust is spreading apart creating new ocean floor Continental Rifting The process that causes continental crust to extend and thin. Rift Valley deep valley formed on land where two plates move apart and magma rises to Earth's surface ...
... Ridges (deep oceanic ridges) Underwater mountain ranges where crust is spreading apart creating new ocean floor Continental Rifting The process that causes continental crust to extend and thin. Rift Valley deep valley formed on land where two plates move apart and magma rises to Earth's surface ...
No Slide Title
... • Fit of continents - new material pushes them apart • Topography of ocean floors - hot ridges, trenches • Volcanism at ridge axes - hot mantle material • Seismic zones near margins - descending plates ...
... • Fit of continents - new material pushes them apart • Topography of ocean floors - hot ridges, trenches • Volcanism at ridge axes - hot mantle material • Seismic zones near margins - descending plates ...
Introduction to Plate Tectonics - EHS
... • new oceanic crust continuously spread away from the ridges in a conveyor belt-like motion – Crust is destroyed at the trenches • After millions of years, oceanic crust descends into very deep, narrow canyons along the rim of the Pacific Ocean basin. – the Atlantic Ocean was expanding while the Pac ...
... • new oceanic crust continuously spread away from the ridges in a conveyor belt-like motion – Crust is destroyed at the trenches • After millions of years, oceanic crust descends into very deep, narrow canyons along the rim of the Pacific Ocean basin. – the Atlantic Ocean was expanding while the Pac ...
CONVERGENT BOUNDARIES
... Ridges (deep oceanic ridges) Underwater mountain ranges where crust is spreading apart creating new ocean floor Continental Rifting The process that causes continental crust to extend and thin. Rift Valley deep valley formed on land where two plates move apart and magma rises to Earth's surface ...
... Ridges (deep oceanic ridges) Underwater mountain ranges where crust is spreading apart creating new ocean floor Continental Rifting The process that causes continental crust to extend and thin. Rift Valley deep valley formed on land where two plates move apart and magma rises to Earth's surface ...
Evidence of Plate Tectonics
... features increase as you move away from Hawaii ◦ Therefore: The plates are moving over the hot spot and forming new volcanic features. ...
... features increase as you move away from Hawaii ◦ Therefore: The plates are moving over the hot spot and forming new volcanic features. ...
Unit Review Answers
... ___ g Where two plates are moving apart ___ e Where molten rock has made it’s way to the surface ___b The study of the movement of large pieces of crust across the planet ___ a Where two plates move side by side ___ d Where two plates collide with each other ___ f Movement of heated material in a ci ...
... ___ g Where two plates are moving apart ___ e Where molten rock has made it’s way to the surface ___b The study of the movement of large pieces of crust across the planet ___ a Where two plates move side by side ___ d Where two plates collide with each other ___ f Movement of heated material in a ci ...
Name:______ Page:______ Read for understanding: Types of plate
... What is happening to the tectonic plates at a convergent boundary? ...
... What is happening to the tectonic plates at a convergent boundary? ...
Chapter 6 - Cloudfront.net
... 5 layers for the physical structure of Earth 1. Lithosphere – the layer that is made of the crust and the upper part of the mantle – another name for the crust (made of rock) – made up of tectonic plates that float on the asthenosphere ...
... 5 layers for the physical structure of Earth 1. Lithosphere – the layer that is made of the crust and the upper part of the mantle – another name for the crust (made of rock) – made up of tectonic plates that float on the asthenosphere ...
Plate tectonics
... 2. Two tectonic plates collide and one sinks beneath the other. What do you predict will form? A. volcanoes B. hurricanes C. abyssal plains D. mid-ocean ridges ...
... 2. Two tectonic plates collide and one sinks beneath the other. What do you predict will form? A. volcanoes B. hurricanes C. abyssal plains D. mid-ocean ridges ...
Chapter 7 Summary Review
... energy trends, and the discovery of seafloor spreading all contributed to the development of the theory of plate tectonics. ...
... energy trends, and the discovery of seafloor spreading all contributed to the development of the theory of plate tectonics. ...
Earth`s Layers Vocabulary
... Lower Mantle – 3rd major layer – solid rock Outer Core – 4th major layer – liquid metal – the liquid’s movement is what makes the Earth’s magnetic field. Inner Core – 5th major layer – solid metal due to great pressure – hottest layer (almost as hot as the sun) ...
... Lower Mantle – 3rd major layer – solid rock Outer Core – 4th major layer – liquid metal – the liquid’s movement is what makes the Earth’s magnetic field. Inner Core – 5th major layer – solid metal due to great pressure – hottest layer (almost as hot as the sun) ...
An Introduction to the Seafloor and Plate Tectonics
... Introduction: The Layers of the Earth Approximately 70% of the Earth’s surface (covering 361 million square kilometers) is covered by the ocean. The average ocean depth (3800m) is 4.5 times greater than the average elevation on land (840 meters), yet it is only a tiny fraction of the total Earth’s v ...
... Introduction: The Layers of the Earth Approximately 70% of the Earth’s surface (covering 361 million square kilometers) is covered by the ocean. The average ocean depth (3800m) is 4.5 times greater than the average elevation on land (840 meters), yet it is only a tiny fraction of the total Earth’s v ...
Mid-ocean ridges
... moving with respect to each other These movements result in many of the structural features we see on Earth, like mountains, trenches and ocean basins Plate movement also shapes continents, for example leading to formation of mountains like the Himalayas ...
... moving with respect to each other These movements result in many of the structural features we see on Earth, like mountains, trenches and ocean basins Plate movement also shapes continents, for example leading to formation of mountains like the Himalayas ...
Plate Tectonics - for Jack L. Pierce
... 3. Explain why the discovery of the fossil remains of Mesosaurus in both South America and Africa, but nowhere else, supports the continental drift hypothesis. 4. What two aspects of Wegener’s continental drift hypotheses were objectionable to most Earth scientists? 5. What major ocean floor feature ...
... 3. Explain why the discovery of the fossil remains of Mesosaurus in both South America and Africa, but nowhere else, supports the continental drift hypothesis. 4. What two aspects of Wegener’s continental drift hypotheses were objectionable to most Earth scientists? 5. What major ocean floor feature ...
17.3 Plate Boundaries The evidence of seafloor spreading
... boundaries are found on the sea floor at rift valleys. It is at this center rift where seafloor spreading occurs. Because new ocean crust is being created here by magma, there is a lot of volcanic activity, earthquakes and intense heat associated with divergent boundaries. Most divergent boundaries ...
... boundaries are found on the sea floor at rift valleys. It is at this center rift where seafloor spreading occurs. Because new ocean crust is being created here by magma, there is a lot of volcanic activity, earthquakes and intense heat associated with divergent boundaries. Most divergent boundaries ...
Volcanoes, Earthquakes, Plates after
... • When two oceanic plates collide, one runs over the other which causes it to sink into the mantle forming a subduction zone. • The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. • The worlds deepest parts of the ocean are found along trenches. – ...
... • When two oceanic plates collide, one runs over the other which causes it to sink into the mantle forming a subduction zone. • The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. • The worlds deepest parts of the ocean are found along trenches. – ...
PowerPoint Presentation - The Earth, Plate Tectonics
... soft, plastic interior. The sinking of the block forms a central valley called a rift. Magma (liquid rock) seeps upward to fill the cracks. In this way, new crust is formed along the boundary. ...
... soft, plastic interior. The sinking of the block forms a central valley called a rift. Magma (liquid rock) seeps upward to fill the cracks. In this way, new crust is formed along the boundary. ...
science
... (6.10) Earth and space. The student understands the structure of Earth, the rock cycle, and plate tectonics. The student is expected to: (A) build a model to illustrate the structural layers of Earth, including the inner core, outer core, mantle, crust, asthenosphere, and lithosphere; (B) classify r ...
... (6.10) Earth and space. The student understands the structure of Earth, the rock cycle, and plate tectonics. The student is expected to: (A) build a model to illustrate the structural layers of Earth, including the inner core, outer core, mantle, crust, asthenosphere, and lithosphere; (B) classify r ...
sxES_G6_RNG_ch04-A_070-073.fm
... This section explains how the lithosphere is broken into separate sections that move. ...
... This section explains how the lithosphere is broken into separate sections that move. ...
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.