Tut-4-exam-Q
... (i) how crustal shortening is achieved in the Himalayas. Block 4 sections 7.5 and 7.6. (ii) how this varies along the Himalayan chain. Major structures (STDS, MCT, MBT, MFT) can be traced for 2000 km along the centeal Himalaya (Fig. 7.5, 7.19. Convergence is often oblique (Figs. 7.45, 7.46). Western ...
... (i) how crustal shortening is achieved in the Himalayas. Block 4 sections 7.5 and 7.6. (ii) how this varies along the Himalayan chain. Major structures (STDS, MCT, MBT, MFT) can be traced for 2000 km along the centeal Himalaya (Fig. 7.5, 7.19. Convergence is often oblique (Figs. 7.45, 7.46). Western ...
The Rock Cycle
... These plates move past each other and occasionally slip above or below one another. As the plate sinks lower and lower beneath another plate, the heat and pressure it gives off causes the rock to melt. volcano Sometimes if one plate doesn’t slide underneath another, the the plates will collide and ...
... These plates move past each other and occasionally slip above or below one another. As the plate sinks lower and lower beneath another plate, the heat and pressure it gives off causes the rock to melt. volcano Sometimes if one plate doesn’t slide underneath another, the the plates will collide and ...
Lecture 2.2 - Convergent plate boundaries
... Plate boundary where the sense of motion is convergent ...
... Plate boundary where the sense of motion is convergent ...
Folding and Faulting
... • Compression can cause land between two parallel faults to be pushed upwards •Block Mountain ...
... • Compression can cause land between two parallel faults to be pushed upwards •Block Mountain ...
Where plates meet
... and friction are produced. The heat and friction result in earthquakes and volcanic activity. Oceanic crust melts as it sinks under continental crust. Magma bursts through the crust to form a volcano. An example of this type of plate boundary is found along the western coastline of South America. ...
... and friction are produced. The heat and friction result in earthquakes and volcanic activity. Oceanic crust melts as it sinks under continental crust. Magma bursts through the crust to form a volcano. An example of this type of plate boundary is found along the western coastline of South America. ...
Lec3 - nptel
... The original theory of continental drift suggested images of massive continents pushing through the seas and across the ocean floor. It was well known, however, that the ocean floor was too strong to permit such motion, and the theory was originally discredited by most earth scientists. From this ba ...
... The original theory of continental drift suggested images of massive continents pushing through the seas and across the ocean floor. It was well known, however, that the ocean floor was too strong to permit such motion, and the theory was originally discredited by most earth scientists. From this ba ...
EDWARD J. GARNERO 2. Employer - AGU Elections
... My discipline of research is seismology, and my research focus is the interior of Earth and the Moon. I am interested in seismic imaging of structures that relate to the chemistry, dynamics, and evolution of interiors, especially as it relates to observables at Earth’s surfaces (hotspots, LIPs, subd ...
... My discipline of research is seismology, and my research focus is the interior of Earth and the Moon. I am interested in seismic imaging of structures that relate to the chemistry, dynamics, and evolution of interiors, especially as it relates to observables at Earth’s surfaces (hotspots, LIPs, subd ...
The Seven Earths DOC
... complex aluminum-bearing silicate mineral. This layer is dense when cold because of the garnet. It is buoyant when hot because these minerals melt easily to form basalt which can then rise through the upper layers as magma. (6) Upper Mantle: 10.3% of Earth’s mass; depth of 10 400 kilometers (6 - 250 ...
... complex aluminum-bearing silicate mineral. This layer is dense when cold because of the garnet. It is buoyant when hot because these minerals melt easily to form basalt which can then rise through the upper layers as magma. (6) Upper Mantle: 10.3% of Earth’s mass; depth of 10 400 kilometers (6 - 250 ...
Chapter 10
... is, and the density of the material. P-waves have the highest velocity of all seismic waves and thus will reach all seismographs first. S-Waves - Secondary waves, also called shear waves. They travel with a velocity that depends only on the rigidity and density of the material through which they tra ...
... is, and the density of the material. P-waves have the highest velocity of all seismic waves and thus will reach all seismographs first. S-Waves - Secondary waves, also called shear waves. They travel with a velocity that depends only on the rigidity and density of the material through which they tra ...
Trivial Pursuit
... Question 1 You can find some of the same fossils on the coast of South America that you can find in Antarctica. How can this be explained? a. The species traveled across the ocean. b. The species just grew on each continent on its own. c. The continents were once together, but have now spread apart ...
... Question 1 You can find some of the same fossils on the coast of South America that you can find in Antarctica. How can this be explained? a. The species traveled across the ocean. b. The species just grew on each continent on its own. c. The continents were once together, but have now spread apart ...
Chapt12RHS2014
... – When an oceanic plate collides with a continental plate, the continental plate usually rides up over the denser oceanic plate and pushes it down into the mantle in a process called subduction. – The area where this collision and subduction takes place is called a subduction zone. – Tectonic plates ...
... – When an oceanic plate collides with a continental plate, the continental plate usually rides up over the denser oceanic plate and pushes it down into the mantle in a process called subduction. – The area where this collision and subduction takes place is called a subduction zone. – Tectonic plates ...
Graham Cracker Model of Plate Movements
... Purpose: To study the interactions of the tectonic plates as they move slowly on the asthenosphere. Background: The Theory of Plate Tectonics states that the crust of the earth is composed of 16 major pieces or plates. These plates “ride” on the hot plastic upper mantle known as the asthenosphere. T ...
... Purpose: To study the interactions of the tectonic plates as they move slowly on the asthenosphere. Background: The Theory of Plate Tectonics states that the crust of the earth is composed of 16 major pieces or plates. These plates “ride” on the hot plastic upper mantle known as the asthenosphere. T ...
the internal structure of the earth the crust
... Sea-floor spreading is the process in which the ocean floor is extended when two plates move apart (diverge). As the plates move apart, the rocks break and form a crack between the plates and magma rises through the cracks. As magma meets the water, it cools and solidifies, adding to the edges of th ...
... Sea-floor spreading is the process in which the ocean floor is extended when two plates move apart (diverge). As the plates move apart, the rocks break and form a crack between the plates and magma rises through the cracks. As magma meets the water, it cools and solidifies, adding to the edges of th ...
Basin and Range
... India Moved beneath Asia • Since about 10 million years ago, – India has moved beneath Asia – along the main boundary fault ...
... India Moved beneath Asia • Since about 10 million years ago, – India has moved beneath Asia – along the main boundary fault ...
South American Plate Relationships
... z Bosch & Rodriguez, 1992. North Venezuela collisional crustal block: The boundary between the Caribbean and South American Plates. J of South American Earth Sciences 6 (3) 133-143. z Mantovani et al, 2001. Tidal gravity anomalies as a tool to measure rheological properties of the continental lithos ...
... z Bosch & Rodriguez, 1992. North Venezuela collisional crustal block: The boundary between the Caribbean and South American Plates. J of South American Earth Sciences 6 (3) 133-143. z Mantovani et al, 2001. Tidal gravity anomalies as a tool to measure rheological properties of the continental lithos ...
Slide 1
... rose as the former Asian and European plates joined to form Eurasia. B) Marine strata in a basin between the former Asian and European plates were squeezed, folded, and uplifted as the two joined to form the Eurasian plate. C) Active, normal faulting is elevating large, mountain blocks above the lev ...
... rose as the former Asian and European plates joined to form Eurasia. B) Marine strata in a basin between the former Asian and European plates were squeezed, folded, and uplifted as the two joined to form the Eurasian plate. C) Active, normal faulting is elevating large, mountain blocks above the lev ...
puckett attendance center
... 4a.Compare and contrast the lithosphere and the asthenosphere. (DOK 1) •Composition, density, and location of continental crust and oceanic crust •Physical nature of the lithosphere (brittle and rigid) with the asthenosphere (plastic and flowing) •How the lithosphere responds to tectonic forces (fau ...
... 4a.Compare and contrast the lithosphere and the asthenosphere. (DOK 1) •Composition, density, and location of continental crust and oceanic crust •Physical nature of the lithosphere (brittle and rigid) with the asthenosphere (plastic and flowing) •How the lithosphere responds to tectonic forces (fau ...
1st Sem (unit I)
... climatology is the science which studies the nature of climate, the causes and interpretation of its spatial variations and its association with the elements of natural environment and human activities. In simple words it is the systematic and regional study of atmospheric conditions i.e. weather an ...
... climatology is the science which studies the nature of climate, the causes and interpretation of its spatial variations and its association with the elements of natural environment and human activities. In simple words it is the systematic and regional study of atmospheric conditions i.e. weather an ...
Grade 5 Earth Science - AIMS Store
... a large spoonful of icing on the aluminum foil. You will need to place two pieces of graham cracker next to each other on the icing. Press down slowly on the graham crackers. They represent oceanic crust. Oceanic crust is floating on the mantle. The icing models the mantle. Slowly push the graham cra ...
... a large spoonful of icing on the aluminum foil. You will need to place two pieces of graham cracker next to each other on the icing. Press down slowly on the graham crackers. They represent oceanic crust. Oceanic crust is floating on the mantle. The icing models the mantle. Slowly push the graham cra ...
Structure of Earth and Plate Tectonics
... Create a picture dictionary describing how plate tectonics cause major geological events including ocean basins, earthquakes, volcanic eruptions, and mountain building. Indicate the forces (plate movements) involved with each. (6.3D; 6.10D) 1C; 5C, 5G ...
... Create a picture dictionary describing how plate tectonics cause major geological events including ocean basins, earthquakes, volcanic eruptions, and mountain building. Indicate the forces (plate movements) involved with each. (6.3D; 6.10D) 1C; 5C, 5G ...
PlateBoundaries2 by Joy Bryson
... Plate interactions result in events and features • The plates move, but they have no effect on one another. • There is no way to determine the location of boundaries between plates. • Erosion is the only process that alters the appearance of Earth. • All changes to Earth’s surface occur suddenly an ...
... Plate interactions result in events and features • The plates move, but they have no effect on one another. • There is no way to determine the location of boundaries between plates. • Erosion is the only process that alters the appearance of Earth. • All changes to Earth’s surface occur suddenly an ...
plate tectonics - Math/Science Nucleus
... There are a dozen or more smaller plates. The plates average about 80 kilometers (50 miles) in thickness. All of the plates are moving. They are slow, moving at speeds of centimeters to tens of centimeters per year. They slide along on top of an underlying mantle layer called the asthenosphere, whic ...
... There are a dozen or more smaller plates. The plates average about 80 kilometers (50 miles) in thickness. All of the plates are moving. They are slow, moving at speeds of centimeters to tens of centimeters per year. They slide along on top of an underlying mantle layer called the asthenosphere, whic ...
Presnall, D. C. (1980) A double partial melt zone in the mantle beneath mid-ocean ridges, Phys. Earth Planet. Int., 23, 103-111.
... thickness of the deep partial melt zone would decrease. With increasing depth in a mature oceanic lithosphere, the rock types would consist of depleted harzburgite from directly beneath the crust to about 30 km depth, fertile spinal lherzolite from about 30 km to 50—60 km, and fertile garnet lherzol ...
... thickness of the deep partial melt zone would decrease. With increasing depth in a mature oceanic lithosphere, the rock types would consist of depleted harzburgite from directly beneath the crust to about 30 km depth, fertile spinal lherzolite from about 30 km to 50—60 km, and fertile garnet lherzol ...
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.