Collision and transform Boundaries
... where the Pacific and North American plates meet. The Pacific plate is moving south east and the North American plate is moving east. This means that the city of Los Angeles is moving towards San Francisco at about 6 cm per year, in about 10 million years they will be side by side! This fault line i ...
... where the Pacific and North American plates meet. The Pacific plate is moving south east and the North American plate is moving east. This means that the city of Los Angeles is moving towards San Francisco at about 6 cm per year, in about 10 million years they will be side by side! This fault line i ...
Teaching About Plate Tectonics and Faulting Using Foam Models
... Rifts, grabens, sometimes volcanism, regional uplift but local downdropped fault blocks, shallow earthquakes ...
... Rifts, grabens, sometimes volcanism, regional uplift but local downdropped fault blocks, shallow earthquakes ...
Forschungszentrum für marine
... About 2000 kilometers east of the Philippine Islands lies one of the most famous topographical peculiarities of the oceans: the Mariana trench. Reaching depths of up to 11,000 meters below sea level, it holds the record as the deepest point of the world's ocean. This 4000-kilometer-long trench exten ...
... About 2000 kilometers east of the Philippine Islands lies one of the most famous topographical peculiarities of the oceans: the Mariana trench. Reaching depths of up to 11,000 meters below sea level, it holds the record as the deepest point of the world's ocean. This 4000-kilometer-long trench exten ...
PowerPoint Presentation - Black Smokers and Blue Ice
... all kinds of minerals which start to precipitate as soon as the fluid is cooled forming thick rising plumes of blue-black sulfide mineral smoke –hence their common name of 'black smokers'. ...
... all kinds of minerals which start to precipitate as soon as the fluid is cooled forming thick rising plumes of blue-black sulfide mineral smoke –hence their common name of 'black smokers'. ...
Chapter 7: Plate Tectonics
... many people during his lifetime. He was unable to explain exactly how the continents drifted apart. He proposed that the continents plowed through the ocean floor, driven by the spin of Earth. Physicists and geologists of the time strongly disagreed with Wegener’s explanation. They pointed out that ...
... many people during his lifetime. He was unable to explain exactly how the continents drifted apart. He proposed that the continents plowed through the ocean floor, driven by the spin of Earth. Physicists and geologists of the time strongly disagreed with Wegener’s explanation. They pointed out that ...
Mineral resource
... • When two plates come together, it is known as a convergent boundary. The impact of the two colliding plates buckles the edge of one or both plates up into a rugged mountain range, and sometimes bends the other down into a deep seafloor trench. A chain of volcanoes often forms parallel to the bound ...
... • When two plates come together, it is known as a convergent boundary. The impact of the two colliding plates buckles the edge of one or both plates up into a rugged mountain range, and sometimes bends the other down into a deep seafloor trench. A chain of volcanoes often forms parallel to the bound ...
Lesson 2: “Seafloor Spreading”
... 1. During World War I, scientists used underwater ________________ to detect the varying depths of the ocean. This is known as “sonar” today. 2. While using this method of echo location, they discovered an underwater system of ____________________ (mountains) and ____________________. 3. In the Atla ...
... 1. During World War I, scientists used underwater ________________ to detect the varying depths of the ocean. This is known as “sonar” today. 2. While using this method of echo location, they discovered an underwater system of ____________________ (mountains) and ____________________. 3. In the Atla ...
Mountain Building-Folding and Faulting
... broken plate between 2 parallel faults drop as the broken plates move away from each other ...
... broken plate between 2 parallel faults drop as the broken plates move away from each other ...
Subduction and collision processes in the Central Andes
... plateau. We have also imaged the subducted crust of the Nazca oceanic plate down to 120 km depth, where it becomes invisible to converted teleseismic waves, probably owing to completion of the gabbro±eclogite transformation; this is direct evidence for the presence of kinetically delayed metamorphic ...
... plateau. We have also imaged the subducted crust of the Nazca oceanic plate down to 120 km depth, where it becomes invisible to converted teleseismic waves, probably owing to completion of the gabbro±eclogite transformation; this is direct evidence for the presence of kinetically delayed metamorphic ...
Mountain Buiiding Test
... 7. What happens when oceanic and continental plates collide? a. The continental lithosphere subducts beneath the oceanic lithosphere. b. The asthenosphere and the lithosphere are disrupted. c. Valleys are created by the excessive energy release. d. Mountains can be created through uplift and volcani ...
... 7. What happens when oceanic and continental plates collide? a. The continental lithosphere subducts beneath the oceanic lithosphere. b. The asthenosphere and the lithosphere are disrupted. c. Valleys are created by the excessive energy release. d. Mountains can be created through uplift and volcani ...
4.1 Gondwana – Further questions Q1. Bk Ch4 S4.1 FQ1 a What do
... Mid-ocean ridges are present on the ocean floor along the boundaries where tectonic plates meet. There is an up-welling of the semi-molten rock within the mantle that rises to the surface as lava between tectonic plates at this boundary. As the lava reaches the surfaces along the boundary line it fl ...
... Mid-ocean ridges are present on the ocean floor along the boundaries where tectonic plates meet. There is an up-welling of the semi-molten rock within the mantle that rises to the surface as lava between tectonic plates at this boundary. As the lava reaches the surfaces along the boundary line it fl ...
Earthquakes! Causes. Predictions.
... 3. Frictional heat generated by slippage along a fault will increasingly melt (within the walls of the fault) mineral grains with the lowest melting temperatures. As heating within a large volume of rock increases, more liquid droplets form, merge, and eventually escape along faults. The remaining s ...
... 3. Frictional heat generated by slippage along a fault will increasingly melt (within the walls of the fault) mineral grains with the lowest melting temperatures. As heating within a large volume of rock increases, more liquid droplets form, merge, and eventually escape along faults. The remaining s ...
The New Zealand convergent tectonics system has
... In newly-forming subduction zones on Earth, plates are torn apart and deep fluid generation and chemical element movement set forth, prior to the massive fluid release and arc magmatism of mature subduction. Such zones allow us to test how major fault zone geometries evolve from shallow levels to de ...
... In newly-forming subduction zones on Earth, plates are torn apart and deep fluid generation and chemical element movement set forth, prior to the massive fluid release and arc magmatism of mature subduction. Such zones allow us to test how major fault zone geometries evolve from shallow levels to de ...
of Earthquakes
... • Active continental margin: – Earthquakes, young mountain belt, and volcanoes. – Consists of continental shelf & slope, and oceanic trench. – Lacks continental rise and abyssal plain. – Associated with convergent plate boundaries. ...
... • Active continental margin: – Earthquakes, young mountain belt, and volcanoes. – Consists of continental shelf & slope, and oceanic trench. – Lacks continental rise and abyssal plain. – Associated with convergent plate boundaries. ...
Slide 1
... http://images.google.com/imgres?imgurl=http://www.paleoweb.net/algae/algae/ecology/ramp/imgeurope.jpg&imgrefurl=http://www.paleoweb.net/algae/algae/ecology/ramp/ramp2.htm&h=300&w=300&sz=72&hl=en&start=3&tbnid=s6DXc ...
... http://images.google.com/imgres?imgurl=http://www.paleoweb.net/algae/algae/ecology/ramp/imgeurope.jpg&imgrefurl=http://www.paleoweb.net/algae/algae/ecology/ramp/ramp2.htm&h=300&w=300&sz=72&hl=en&start=3&tbnid=s6DXc ...
msword - rgs.org
... of the Earth. Magma becomes lava only once it flows out over the surface land, for example with a volcano. This is the theory of the movement of the plates that make up the Earth’s crust. The Earth’s crust is not one solid piece of land, but is formed of many different pieces or plates. There are ei ...
... of the Earth. Magma becomes lava only once it flows out over the surface land, for example with a volcano. This is the theory of the movement of the plates that make up the Earth’s crust. The Earth’s crust is not one solid piece of land, but is formed of many different pieces or plates. There are ei ...
Lesson 4: Volcanoes Factsheet for teachers
... of the Earth. Magma becomes lava only once it flows out over the surface land, for example with a volcano. This is the theory of the movement of the plates that make up the Earth’s crust. The Earth’s crust is not one solid piece of land, but is formed of many different pieces or plates. There are ei ...
... of the Earth. Magma becomes lava only once it flows out over the surface land, for example with a volcano. This is the theory of the movement of the plates that make up the Earth’s crust. The Earth’s crust is not one solid piece of land, but is formed of many different pieces or plates. There are ei ...
Seafloor Spreading - Teacher Site Home
... 15b. Parts C and D have a different slope. Are the plates moving slower or faster at C and D compared to A and B? 15c. India smashed into Asia, changing the movement of adjacent plates. Based upon the changes in the rate of movement, when do you think that the collision happened? 16. Review all of ...
... 15b. Parts C and D have a different slope. Are the plates moving slower or faster at C and D compared to A and B? 15c. India smashed into Asia, changing the movement of adjacent plates. Based upon the changes in the rate of movement, when do you think that the collision happened? 16. Review all of ...
Cordilleran foreland vs hinterland deformation: Thermal controls of
... Using estimated temperatures in the crust and upper mantle, the lithosphere thicknesses and strengths may be predicted based upon laboratory determined rheologies for crustal and mantle rocks as a function of temperature. The consequent thicknesses for the lithosphere (i.e., depth of significant str ...
... Using estimated temperatures in the crust and upper mantle, the lithosphere thicknesses and strengths may be predicted based upon laboratory determined rheologies for crustal and mantle rocks as a function of temperature. The consequent thicknesses for the lithosphere (i.e., depth of significant str ...
Study Guide / Notes 11
... chemical analyses of meteorites. Since the abundance of elements are similar we assume the composition of the earth to be similar. Therefore, elements not in the earth's outer layers can be expected to occur in the interior. (see p. 228) ...
... chemical analyses of meteorites. Since the abundance of elements are similar we assume the composition of the earth to be similar. Therefore, elements not in the earth's outer layers can be expected to occur in the interior. (see p. 228) ...
The Earth
... their way to the surface Near the surface, these plumes spread and drag the surface layers from below The crust stretches, spreads, and breaks the surface in a phenomenon called rifting ...
... their way to the surface Near the surface, these plumes spread and drag the surface layers from below The crust stretches, spreads, and breaks the surface in a phenomenon called rifting ...
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.