TennMaps_PlateTectonics
... These isolated areas of volcanic activity are not associated with plate boundaries These volcanoes are found both on continents and out in the ocean ...
... These isolated areas of volcanic activity are not associated with plate boundaries These volcanoes are found both on continents and out in the ocean ...
PLATE MARGINS
... of extruded material on the ocean floor rises and can create volcanic islands that rise above the ocean level. Many of the islands of the Pacific ocean (Hawaii is not one of them) are formed by the convergence of two ocean plates. When two ocean plates converge, a deep subduction zone is formed, and ...
... of extruded material on the ocean floor rises and can create volcanic islands that rise above the ocean level. Many of the islands of the Pacific ocean (Hawaii is not one of them) are formed by the convergence of two ocean plates. When two ocean plates converge, a deep subduction zone is formed, and ...
presentation source
... Mountain belt on a transform fault. The Pyrénées is a 400 km long mountain belt along the boundary between Spain and France. In the middle Cretaceous the opening of the North Atlantic ocean induced the sinistral translation of the iberic peninsula along the North Pyrenean Transform Fault. This lith ...
... Mountain belt on a transform fault. The Pyrénées is a 400 km long mountain belt along the boundary between Spain and France. In the middle Cretaceous the opening of the North Atlantic ocean induced the sinistral translation of the iberic peninsula along the North Pyrenean Transform Fault. This lith ...
Earth System Chapter 17 PowerPoint
... – Wegener reasoned that large geologic structures, such as mountain ranges, would have fractured as the continents separated. – Using this reasoning, Wegener hypothesized that there should be areas of similar rock types on opposite sides of the Atlantic Ocean. – That similar groups of rocks were obs ...
... – Wegener reasoned that large geologic structures, such as mountain ranges, would have fractured as the continents separated. – Using this reasoning, Wegener hypothesized that there should be areas of similar rock types on opposite sides of the Atlantic Ocean. – That similar groups of rocks were obs ...
Mantle flow drives the subsidence of oceanic plates - HAL
... the half-space model (6) – considered the lithosphere as the cold upper boundary layer of a cooling mantle, where the depth varies with the square root of the distance from the ridge. By assuming a constant plate velocity, the seafloor depth therefore varies with the square root of the age of the li ...
... the half-space model (6) – considered the lithosphere as the cold upper boundary layer of a cooling mantle, where the depth varies with the square root of the distance from the ridge. By assuming a constant plate velocity, the seafloor depth therefore varies with the square root of the age of the li ...
GEHomeworkCh4
... #3: Examine the image of the broken (china) plate (see page 85) and answer the questions that follow. If you were asked to glue the pieces of the plate back together, which pieces would you match up with each other? a) What features did you use to match the different pieces? b) What equivalent featu ...
... #3: Examine the image of the broken (china) plate (see page 85) and answer the questions that follow. If you were asked to glue the pieces of the plate back together, which pieces would you match up with each other? a) What features did you use to match the different pieces? b) What equivalent featu ...
Continental Drift theory
... movement can also be considered destructive as plates that subduct (one plate dives below another) can consume crustal rock and turn it back into magma with heat and pressure. ...
... movement can also be considered destructive as plates that subduct (one plate dives below another) can consume crustal rock and turn it back into magma with heat and pressure. ...
Brief overview of North American Cordilleran geology by Cin
... 400‐250 Ma Passive margin is interrupted in Devonian times by the accretion of island arcs Antler and Sonoma orogenies Antler and Sonoma orogenies Accretion of allochthonous terranes to the western margin of the North American craton ...
... 400‐250 Ma Passive margin is interrupted in Devonian times by the accretion of island arcs Antler and Sonoma orogenies Antler and Sonoma orogenies Accretion of allochthonous terranes to the western margin of the North American craton ...
plate tectonics
... Plates moving togetherconvergent boundaries • When Two Oceanic Plates Collide – The older, denser plate will subduct and sink down into the mantle. – The Mariana Islands in the Western Pacific are a chain of volcanic islands formed from two oceanic plates colliding. ...
... Plates moving togetherconvergent boundaries • When Two Oceanic Plates Collide – The older, denser plate will subduct and sink down into the mantle. – The Mariana Islands in the Western Pacific are a chain of volcanic islands formed from two oceanic plates colliding. ...
Name ____Justin Powers______ Date ______ Period ____ Plate
... Roll your mouse over the image to find the definitions of the words below: Continental Crust - The Earth’s crust that makes up the continents Mountain – A high, large mass of earth and rock that rises above the Earth’s surface with steep or sloping sides 2. At divergent boundaries, tectonic plates a ...
... Roll your mouse over the image to find the definitions of the words below: Continental Crust - The Earth’s crust that makes up the continents Mountain – A high, large mass of earth and rock that rises above the Earth’s surface with steep or sloping sides 2. At divergent boundaries, tectonic plates a ...
CHAPTER 2
... shown). Draw a horizontal line from there to the depth scale to determine the melting depth. Use this depth for the other Aleutian arc segments. ~ 140 km as discussed above. ...
... shown). Draw a horizontal line from there to the depth scale to determine the melting depth. Use this depth for the other Aleutian arc segments. ~ 140 km as discussed above. ...
Sea Levels - MSU Billings
... crust, which has an average composition of granite. vs. Deep-ocean basin = the deep sea floor beyond the continental margin; made up of oceanic crust, which is composed mostly of volcanic basalt. ...
... crust, which has an average composition of granite. vs. Deep-ocean basin = the deep sea floor beyond the continental margin; made up of oceanic crust, which is composed mostly of volcanic basalt. ...
CHAPTER 2 Plate Tectonics and the Sea Floor
... Orogens are also affected by changes in the type of plate boundary. Subduction of small ocean plates may change a convergent margin to a transform margin. ...
... Orogens are also affected by changes in the type of plate boundary. Subduction of small ocean plates may change a convergent margin to a transform margin. ...
8 - MsWold
... ______________, ridge push, and slab pull are hypothetical models for the causes of plate movements. ...
... ______________, ridge push, and slab pull are hypothetical models for the causes of plate movements. ...
Plate tectonics
... magnetic signal recorded in crust at spreading center as it’s formed, forms bands of crust with either a weak or strong magnetic signal ...
... magnetic signal recorded in crust at spreading center as it’s formed, forms bands of crust with either a weak or strong magnetic signal ...
Activity EarthBeneath 150209
... For the questions below, please use the years on the Timeline Handout that correspond to the time periods listed on the key to the Geologic Map. For example on the Geologic Map, the light blue color by A in the Pacific or Atlantic Ocean is Pliocene (shown on the Ocean Geology Key). Then look up Plio ...
... For the questions below, please use the years on the Timeline Handout that correspond to the time periods listed on the key to the Geologic Map. For example on the Geologic Map, the light blue color by A in the Pacific or Atlantic Ocean is Pliocene (shown on the Ocean Geology Key). Then look up Plio ...
ppt
... Geologists get U, Th, K • Accretion of Earth and meteorites • Rocks from mantle including magmas • Their arguments can be run backwards once antineutrino data are in hand ...
... Geologists get U, Th, K • Accretion of Earth and meteorites • Rocks from mantle including magmas • Their arguments can be run backwards once antineutrino data are in hand ...
10.3 Plate Tectonics and Igneous Activity
... Most intraplate volcanism occurs where a mass of hotter than normal mantle material called a mantle plume rises toward the surface. Most mantle plumes appear to form deep within Earth at the core-mantle boundary. These plumes of hot mantle rock rise toward the surface in a way similar to the blobs t ...
... Most intraplate volcanism occurs where a mass of hotter than normal mantle material called a mantle plume rises toward the surface. Most mantle plumes appear to form deep within Earth at the core-mantle boundary. These plumes of hot mantle rock rise toward the surface in a way similar to the blobs t ...
Plate Tectonics: The General Theory
... which is based on convective systems which are cooled from the top and relies on a theory of plate tectonics that is not constrained by assumptions about absolute plate rigidity, hotspot fixity, mantle homogeneity and steady-state conditions. Plate tectonics causes thermal and fertility variations i ...
... which is based on convective systems which are cooled from the top and relies on a theory of plate tectonics that is not constrained by assumptions about absolute plate rigidity, hotspot fixity, mantle homogeneity and steady-state conditions. Plate tectonics causes thermal and fertility variations i ...
Convection Currents - Effingham County Schools
... lithosphere and has a different composition under land than it does on the ocean floor. ...
... lithosphere and has a different composition under land than it does on the ocean floor. ...
Plate tectonics
... magnetic signal recorded in crust at spreading center as it’s formed, forms bands of crust with either a weak or strong magnetic signal ...
... magnetic signal recorded in crust at spreading center as it’s formed, forms bands of crust with either a weak or strong magnetic signal ...
Name - WAHS
... Thermal Convection – a pattern of movement in a fluid caused by heating from below and cooling from above. Plate tectonics – the field of study of plate motion. Continental Accretion – the growth of a continent along its edges. Pangea – Earth’s most recent Supercontinent which was rifted apart about ...
... Thermal Convection – a pattern of movement in a fluid caused by heating from below and cooling from above. Plate tectonics – the field of study of plate motion. Continental Accretion – the growth of a continent along its edges. Pangea – Earth’s most recent Supercontinent which was rifted apart about ...
Geology Library Notes Wk8.cwk (WP)
... 2. Magma pushing plates apart If plates are moved by magma forcing the plates apart what kind of stresses would the rocks in the plates be put under? ...
... 2. Magma pushing plates apart If plates are moved by magma forcing the plates apart what kind of stresses would the rocks in the plates be put under? ...
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.