Oceanic Crust
... Convection Currents • It is theorized convection currents within the Mantle cause plates to move around • There are other theories about what causes plates to move! ...
... Convection Currents • It is theorized convection currents within the Mantle cause plates to move around • There are other theories about what causes plates to move! ...
Cooling of the Ocean Plates (Lithosphere)
... Oceanic Crust - Obtained by partial melting of the mantle (~6 km thick) It is a chemical boundary layer ...
... Oceanic Crust - Obtained by partial melting of the mantle (~6 km thick) It is a chemical boundary layer ...
Convergent Boundaries - Colliding Plates
... The crust is forced deep into the earth where high _________ and _________ cause trapped water and other gases to be released. This, in turn, makes the base of the crust melt, forming _____________. The magma formed rises up toward the earth’s surface and builds up in _____________ _____________ ...
... The crust is forced deep into the earth where high _________ and _________ cause trapped water and other gases to be released. This, in turn, makes the base of the crust melt, forming _____________. The magma formed rises up toward the earth’s surface and builds up in _____________ _____________ ...
Summary Table for Three Types of Plate Boundaries
... Continental Plate Oceanic Plate Continental Plate plate Younger, dense Plates fold upward and continent moves over plate plate moves over plate thickens plate is forced , more dense plates are into the mantle in the plate is subducted too light to be subducted subduction zone Volcanoes form island a ...
... Continental Plate Oceanic Plate Continental Plate plate Younger, dense Plates fold upward and continent moves over plate plate moves over plate thickens plate is forced , more dense plates are into the mantle in the plate is subducted too light to be subducted subduction zone Volcanoes form island a ...
The Earth`s Layers and Plate Tectonics Study Guide #1 Unit 3
... boundary. Sea-floor Spreading-as the magma rises the older sea floor spreads apart to make room for the new sea floor ...
... boundary. Sea-floor Spreading-as the magma rises the older sea floor spreads apart to make room for the new sea floor ...
Tectonic Plate Boundaries - Chardon Middle School Team 8A
... plate has bent downward and dug deep into the Earth. A trench (a deep, Vshaped crevice on the sea-floor) has formed at the bend. All that folding and bending makes rock in both plates break and slip, causing earthquakes. As the edge of the oceanic plate digs into Earth's hot interior, some of the ro ...
... plate has bent downward and dug deep into the Earth. A trench (a deep, Vshaped crevice on the sea-floor) has formed at the bend. All that folding and bending makes rock in both plates break and slip, causing earthquakes. As the edge of the oceanic plate digs into Earth's hot interior, some of the ro ...
ES Practice quiz part 2 sect 3
... D. The following diagram shows how island arcs form. Label the type(s) of crust (include the word “crust” in each answer), and trench. Then, answer the questions that follow. Magma ...
... D. The following diagram shows how island arcs form. Label the type(s) of crust (include the word “crust” in each answer), and trench. Then, answer the questions that follow. Magma ...
Plate Boundaries
... crust form the rigid lithosphere. • The lithosphere is split up into 7 large and many smaller sections known as lithospheric plates. ...
... crust form the rigid lithosphere. • The lithosphere is split up into 7 large and many smaller sections known as lithospheric plates. ...
Ocean Bathymetry and Plate Tectonics
... Mapping the shallow seas would take much more time and funding. Fortunately, such a major mapping program is largely unnecessary because the ocean surface has broad bumps and dips which mimic the topography of the ocean floor. The extra gravitational attraction of features on the seafloor produces m ...
... Mapping the shallow seas would take much more time and funding. Fortunately, such a major mapping program is largely unnecessary because the ocean surface has broad bumps and dips which mimic the topography of the ocean floor. The extra gravitational attraction of features on the seafloor produces m ...
Influence of surrounding plates on 3D subduction dynamics
... experiments show that the absence of lateral plates leads to unrealistic lateral shortening and to the lateral subduction of the plate, which is not observed in natural subduction zones. Studies that do not account for the presence of surface plates may provide qualitative information that is only v ...
... experiments show that the absence of lateral plates leads to unrealistic lateral shortening and to the lateral subduction of the plate, which is not observed in natural subduction zones. Studies that do not account for the presence of surface plates may provide qualitative information that is only v ...
Unit 1 Powerpoint
... continental plate colliding with another continental plate Have Collision Zones: ◦ a place where folded and thrust faulted mountains form. ◦ Forms mountains (European Alps, Himalayas) ...
... continental plate colliding with another continental plate Have Collision Zones: ◦ a place where folded and thrust faulted mountains form. ◦ Forms mountains (European Alps, Himalayas) ...
Unit 1
... Two distinct types of crust cover the earth’s molten mantle: the continental crust and the oceanic crust. a. The continental crust is found beneath the continents and their margins. i. The average thickness is approximately 20-50 km. ii. It is composed mostly of granite, a material rich in aluminum, ...
... Two distinct types of crust cover the earth’s molten mantle: the continental crust and the oceanic crust. a. The continental crust is found beneath the continents and their margins. i. The average thickness is approximately 20-50 km. ii. It is composed mostly of granite, a material rich in aluminum, ...
Plate tectonics is - Faculty Server Contact
... Earth's lithosphere (the crust and upper mantle). All of the continents and ocean floor that we see today sit upon rigid plates that are independent of one another. These plates can contact each other in several different ways. This contact forms boundary zones at the edges of the plates and can be ...
... Earth's lithosphere (the crust and upper mantle). All of the continents and ocean floor that we see today sit upon rigid plates that are independent of one another. These plates can contact each other in several different ways. This contact forms boundary zones at the edges of the plates and can be ...
Geología Norteamerica
... was only a part of it. The name of the huge ocean that surrounded the Pangea supercontinent is Panthalassa. ...
... was only a part of it. The name of the huge ocean that surrounded the Pangea supercontinent is Panthalassa. ...
Name: Date: Geology 101: Plate Tectonics Introduction: Plate
... Earth's lithosphere (the crust and upper mantle). All of the continents and ocean floor that we see today sit upon rigid plates that are independent of one another. These plates can contact each other in several different ways. This contact forms boundary zones at the edges of the plates and can be ...
... Earth's lithosphere (the crust and upper mantle). All of the continents and ocean floor that we see today sit upon rigid plates that are independent of one another. These plates can contact each other in several different ways. This contact forms boundary zones at the edges of the plates and can be ...
Plate Tectonics
... § Define the theory of plate tectonics. § Explain how the Earth is divided into layers based on chemical and physical properties. § Define the asthenosphere and lithosphere. § Describe the plate motion at each of the three different plate boundaries. § Describe the features associated with each type ...
... § Define the theory of plate tectonics. § Explain how the Earth is divided into layers based on chemical and physical properties. § Define the asthenosphere and lithosphere. § Describe the plate motion at each of the three different plate boundaries. § Describe the features associated with each type ...
Understanding Plate Motions - My Science Class / FrontPage
... very likely not since shortly after its formation 4.6 billion years ago. The Earth's unchanging size implies that the crust must be destroyed at about the same rate as it is being created, as Harry Hess surmised. Such destruction (recycling) of crust takes place along convergent boundaries where pla ...
... very likely not since shortly after its formation 4.6 billion years ago. The Earth's unchanging size implies that the crust must be destroyed at about the same rate as it is being created, as Harry Hess surmised. Such destruction (recycling) of crust takes place along convergent boundaries where pla ...
Earth major plates:
... 1. Normal “tensional”: when stress tend to stretch a rock unit perpendicular to the face of the rock. 2. Shear “differential”: when stress is applied unequally in different directions parallel to the face of a rock. Strain: 1. The resulting deformation of stress. 2. Rocks move relative to each other ...
... 1. Normal “tensional”: when stress tend to stretch a rock unit perpendicular to the face of the rock. 2. Shear “differential”: when stress is applied unequally in different directions parallel to the face of a rock. Strain: 1. The resulting deformation of stress. 2. Rocks move relative to each other ...
Plate slides - tclauset.org
... Imagine a single plate, moving in one direction on Earth’s surface. One edge of the plate—the divergent boundary—moves away from things. The opposite edge—called the leading edge or convergent boundary bumps into anything in the way. ...
... Imagine a single plate, moving in one direction on Earth’s surface. One edge of the plate—the divergent boundary—moves away from things. The opposite edge—called the leading edge or convergent boundary bumps into anything in the way. ...
Plate Tectonics Plate tectonics
... New sea floor forms at divergent boundaries. The mid-ocean ridges are the most common type of divergent boundary. ...
... New sea floor forms at divergent boundaries. The mid-ocean ridges are the most common type of divergent boundary. ...
GLY 150 Exam #1 STUDY GUIDE
... shelf break, continental slope, continental rise, abyssal plain, abyssal hills, oceanic ridge, trench and volcanic arc on a diagram of the marine physiographic provinces. What is the difference between an active and passive continental margin? Know examples of each type. How do submarine canyons for ...
... shelf break, continental slope, continental rise, abyssal plain, abyssal hills, oceanic ridge, trench and volcanic arc on a diagram of the marine physiographic provinces. What is the difference between an active and passive continental margin? Know examples of each type. How do submarine canyons for ...
MS Word document, click here
... (the continental shelves) are examined. Regions of high erosion (river deltas) match up less well. •Mountains appear to end at the edge of one continent and continue on another continent across an ocean. Appalachians match with Greenland, Ireland, Britain, Norway. Pangaea and Continental Drift •The ...
... (the continental shelves) are examined. Regions of high erosion (river deltas) match up less well. •Mountains appear to end at the edge of one continent and continue on another continent across an ocean. Appalachians match with Greenland, Ireland, Britain, Norway. Pangaea and Continental Drift •The ...
Oceanic trench
The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They are also the deepest parts of the ocean floor. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries, along which lithospheric plates move towards each other at rates that vary from a few mm to over ten cm per year. A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. Trenches are generally parallel to a volcanic island arc, and about 200 km (120 mi) from a volcanic arc. Oceanic trenches typically extend 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic floor. The greatest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench, at a depth of 11,034 m (36,201 ft) below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km2/yr.