Plate Tectonics Review
... • There are three types of convergent boundaries: 1) Oceanic-to-Continental 2) Oceanic-to-Oceanic 3) Continental-to-Continental ...
... • There are three types of convergent boundaries: 1) Oceanic-to-Continental 2) Oceanic-to-Oceanic 3) Continental-to-Continental ...
Gram Cracker Lab ppt
... transforming boundaries. An example would be the transforming boundaries in California, they are sliding past each other. ...
... transforming boundaries. An example would be the transforming boundaries in California, they are sliding past each other. ...
20081 Study Guide_i-40
... Pangaea occurred less than 10 million years ago. 3. an equal amount of material being subducted 4. As the ocean floor spreads, new material is added at a mid-ocean ridge while the oldest material is subducted at a plate boundary. The subducted material melts and eventually rises again at the mid-oce ...
... Pangaea occurred less than 10 million years ago. 3. an equal amount of material being subducted 4. As the ocean floor spreads, new material is added at a mid-ocean ridge while the oldest material is subducted at a plate boundary. The subducted material melts and eventually rises again at the mid-oce ...
Chapter 7: Circulation of the Solid Earth: Plate Tectonics – ppt
... of continents, called cratons ...
... of continents, called cratons ...
Earth`s Structure Learning Targets
... asthenosphere cause the tectonic plate movement. The thermal energy in the core heats up the lower part of the “plastic” molten asthenosphere. Warm currents rise to the top of the asthenosphere. When it begins to cool, it starts to sink toward the bottom of the asthenosphere. Then the current warms ...
... asthenosphere cause the tectonic plate movement. The thermal energy in the core heats up the lower part of the “plastic” molten asthenosphere. Warm currents rise to the top of the asthenosphere. When it begins to cool, it starts to sink toward the bottom of the asthenosphere. Then the current warms ...
A Living Planet Internal Forces Shaping the Earth
... The Ring of Fire is a zone formed around the rim of the Pacific Ocean, it is the location of the vast majority of active volcanoes in the ...
... The Ring of Fire is a zone formed around the rim of the Pacific Ocean, it is the location of the vast majority of active volcanoes in the ...
geology of bc
... Intermontane Super-terrane Accretion of the Intermontane SuperTerrane and consequent thrusting and folding of existing sedimentary rocks into the Rocky Mountains. Approach of more micro-continents. Subduction related volcanism and intrusive bodies. The Intermontane terrane is mostly volcanic and se ...
... Intermontane Super-terrane Accretion of the Intermontane SuperTerrane and consequent thrusting and folding of existing sedimentary rocks into the Rocky Mountains. Approach of more micro-continents. Subduction related volcanism and intrusive bodies. The Intermontane terrane is mostly volcanic and se ...
Plate Tectonics Internet Scavenger Hunt - wikifuller
... 3. The boundaries between two colliding plates are called _____. a. divergent c. a transform fault b. convergent d. lithosphere 4. Subduction results in the formation of ____. a. a deep-sea trench c. a rift valley b. a magnetic reversal d. new continental crust 5. The subduction of Oceanic plate ben ...
... 3. The boundaries between two colliding plates are called _____. a. divergent c. a transform fault b. convergent d. lithosphere 4. Subduction results in the formation of ____. a. a deep-sea trench c. a rift valley b. a magnetic reversal d. new continental crust 5. The subduction of Oceanic plate ben ...
Geology Module: Seismic Interior Lecture Outline
... a. Oceanic ridges develop along well-developed boundaries 1. Represent 20 percent of Earth’s surface 2. Rift valleys may develop along the axis b. Along ridges, seafloor spreading creates new seafloor 1. Topographic differences are controlled by spreading rates 2. A spreading rate of 5 to 9 centimet ...
... a. Oceanic ridges develop along well-developed boundaries 1. Represent 20 percent of Earth’s surface 2. Rift valleys may develop along the axis b. Along ridges, seafloor spreading creates new seafloor 1. Topographic differences are controlled by spreading rates 2. A spreading rate of 5 to 9 centimet ...
8.3 – What is Seafloor Spreading?
... 1. Scientists think that the movement of tectonic plates is caused by a. conveyor belts b. heat in Earth’s core. c. pressure in Earth’s crust. d. convection currents. ...
... 1. Scientists think that the movement of tectonic plates is caused by a. conveyor belts b. heat in Earth’s core. c. pressure in Earth’s crust. d. convection currents. ...
plates
... What evidence do we have to support this idea? o Mid-ocean ridges are warmer than surrounding ocean floors o Active volcanoes on ridges, earthquakes on ridges o Mid-ocean ridge rocks are younger than surrounding ocean floor rocks o Mid-ocean ridge volcanoes are younger than volcanoes further away ...
... What evidence do we have to support this idea? o Mid-ocean ridges are warmer than surrounding ocean floors o Active volcanoes on ridges, earthquakes on ridges o Mid-ocean ridge rocks are younger than surrounding ocean floor rocks o Mid-ocean ridge volcanoes are younger than volcanoes further away ...
12-16-13 Do Now
... 2. Scientists think that the main driving force of plate tectonics is convection in the lithosphere. 3. A convergent boundary is also known as a spreading center. ...
... 2. Scientists think that the main driving force of plate tectonics is convection in the lithosphere. 3. A convergent boundary is also known as a spreading center. ...
File
... a) ____-____: found on the seafloor where they form __________ ____________. It is in this rift where seafloor spreading begins. The formation of new ocean crust at most boundaries accounts for the high heat flow, __________________ and __________________ associated with these boundaries. Example: _ ...
... a) ____-____: found on the seafloor where they form __________ ____________. It is in this rift where seafloor spreading begins. The formation of new ocean crust at most boundaries accounts for the high heat flow, __________________ and __________________ associated with these boundaries. Example: _ ...
Hotspot volcanoes
... The Hawaiian island chain are examples of hotspot volcanoes. Photo: Tom Pfeiffer / www.volcanodiscovery.com ...
... The Hawaiian island chain are examples of hotspot volcanoes. Photo: Tom Pfeiffer / www.volcanodiscovery.com ...
Plate Tectonics Webquest
... where the ocean floor was being ripped in two lengthwise along the ridge crest. New magma from deep within the Earth rises easily through these weak zones and eventually erupts along the crest of the ridges to create new oceanic crust. This process, was later called _____________ _____________. 13. ...
... where the ocean floor was being ripped in two lengthwise along the ridge crest. New magma from deep within the Earth rises easily through these weak zones and eventually erupts along the crest of the ridges to create new oceanic crust. This process, was later called _____________ _____________. 13. ...
Plate Tectonics
... The Earth is composed of layers of different composition and physical properties: the core, the mantle, and the crust. Two different types of crust exist, the thick and older continental crust and the thin and younger oceanic crust. Horizontal movements within the rigid crust are expressed by the co ...
... The Earth is composed of layers of different composition and physical properties: the core, the mantle, and the crust. Two different types of crust exist, the thick and older continental crust and the thin and younger oceanic crust. Horizontal movements within the rigid crust are expressed by the co ...
Plate Tectonics Power Point
... common in this region. These earthquakes are often accompanied by uplift of the land by as much as a few meters. Mount Saint Helens is along the subduction zone of the Juan de Fuca plate (an oceanic plate) and the North American plate (a continental plate). ...
... common in this region. These earthquakes are often accompanied by uplift of the land by as much as a few meters. Mount Saint Helens is along the subduction zone of the Juan de Fuca plate (an oceanic plate) and the North American plate (a continental plate). ...
Name
... Sediments of the continental rise can exhibit characteristics similar to those formed by rivers on land ...
... Sediments of the continental rise can exhibit characteristics similar to those formed by rivers on land ...
Plate Boundaries
... Ocean – Continent convergent boundary – subduction zone (destruction of crust), volcanic mountain chain ...
... Ocean – Continent convergent boundary – subduction zone (destruction of crust), volcanic mountain chain ...
types of plate boundaries 2014-2015
... Oceanic-Continental • Denser oceanic slab sinks into the asthenosphere. • Pockets of magma develop and rise. • Continental volcanic arcs form in part by volcanic activity caused by the subduction of oceanic lithosphere beneath a continent. ...
... Oceanic-Continental • Denser oceanic slab sinks into the asthenosphere. • Pockets of magma develop and rise. • Continental volcanic arcs form in part by volcanic activity caused by the subduction of oceanic lithosphere beneath a continent. ...
Unit 4: Rock Cycle and Plate Tectonics Text Questions
... 6. List 4 facts that characterize oceanic ridge systems. 7. What is the average rate of sea floor spreading today? 8. Briefly describe the process of continental rifting, and give an example of where it is occurring today, and an example of where it occurred in the past. 9. Why are convergent plate ...
... 6. List 4 facts that characterize oceanic ridge systems. 7. What is the average rate of sea floor spreading today? 8. Briefly describe the process of continental rifting, and give an example of where it is occurring today, and an example of where it occurred in the past. 9. Why are convergent plate ...
Why do so many of Earth`s volcanoes occur along plate boundaries?
... At converging plate boundaries, two situations are possible. First, both volcanoes and earthquakes form where one plate sinks under the other. This process, called subduction, takes place because one plate is denser than the other. The denser plate, which invariably has oceanic crust on its top, doe ...
... At converging plate boundaries, two situations are possible. First, both volcanoes and earthquakes form where one plate sinks under the other. This process, called subduction, takes place because one plate is denser than the other. The denser plate, which invariably has oceanic crust on its top, doe ...
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.