10A_InternalEarrthStructTectonics
... subduction zone and oceanic trench, earthquakes – O-O boundary: Subduction zone, deep oceanic trench, volcanic island arc, wide earthquake zones ...
... subduction zone and oceanic trench, earthquakes – O-O boundary: Subduction zone, deep oceanic trench, volcanic island arc, wide earthquake zones ...
File
... •consist mainly of dense rock (basalt dark in color) •5-8 km thick Continental Crust •crust that forms the continents •consist mainly of less dense rock (granite ...
... •consist mainly of dense rock (basalt dark in color) •5-8 km thick Continental Crust •crust that forms the continents •consist mainly of less dense rock (granite ...
Introduction / Global tectonics
... What is subduction? Where does it occur? List a few examples of where each types of boundary is located. Plate Tectonic geography is important. List a few examples of continental margins that are 1,000’s of miles away from the nearest plate boundary. These are called “Passive”. What types of geologi ...
... What is subduction? Where does it occur? List a few examples of where each types of boundary is located. Plate Tectonic geography is important. List a few examples of continental margins that are 1,000’s of miles away from the nearest plate boundary. These are called “Passive”. What types of geologi ...
45 Understanding Plate Boundaries
... under the ocean, and up to 300 km thick at some continents. Despite being thinner, oceanic lithosphere is denser than continental lithosphere because its crust is made up of denser rocks, such as basalt. When continental and oceanic lithosphere collide, the less dense continental lithosphere usually ...
... under the ocean, and up to 300 km thick at some continents. Despite being thinner, oceanic lithosphere is denser than continental lithosphere because its crust is made up of denser rocks, such as basalt. When continental and oceanic lithosphere collide, the less dense continental lithosphere usually ...
GEO142_lab_2 - earthjay science
... Lab 2: Plate Rates Part 1: Tectonic Plate Spreading Rates You now can synthesize your knowledge of charts, map scales, and plate tectonics to determine rate of plate movements. You will need a ruler and a calculator to make the 7 separate calculations (one for each of the Hawai'ian or Emperor Seamou ...
... Lab 2: Plate Rates Part 1: Tectonic Plate Spreading Rates You now can synthesize your knowledge of charts, map scales, and plate tectonics to determine rate of plate movements. You will need a ruler and a calculator to make the 7 separate calculations (one for each of the Hawai'ian or Emperor Seamou ...
Plate Tectonic Theory
... • Plate Tectonics Theory combines continental drift & seafloor spreading • Lithosphere floats on denser, liquid rock in mantle called asthenosphere. • Lithosphere broken into tectonic plates • Tectonic plates move about 1-8 cm/yr • This movement is the “continental drift” referred to by Wegener ...
... • Plate Tectonics Theory combines continental drift & seafloor spreading • Lithosphere floats on denser, liquid rock in mantle called asthenosphere. • Lithosphere broken into tectonic plates • Tectonic plates move about 1-8 cm/yr • This movement is the “continental drift” referred to by Wegener ...
Plate Tectonics
... 2. convection currents- movement within hot fluids, when the heat source is on the bottom, such as in a boiling pot of soup on the stove. Convection currents happen because the hotter material is less dense and rises; when it reaches the surface, it cools and becomes less dense, so it sinks. This ri ...
... 2. convection currents- movement within hot fluids, when the heat source is on the bottom, such as in a boiling pot of soup on the stove. Convection currents happen because the hotter material is less dense and rises; when it reaches the surface, it cools and becomes less dense, so it sinks. This ri ...
Theory of Plate Tectonics
... The lithosphere is divided into a dozen major and several minor plates. The edges of the plates can be identified from the distribution of earthquake epicenters. That’s because most earthquakes occur at plate boundaries. A single plate may consist only of oceanic lithosphere or only of continental l ...
... The lithosphere is divided into a dozen major and several minor plates. The edges of the plates can be identified from the distribution of earthquake epicenters. That’s because most earthquakes occur at plate boundaries. A single plate may consist only of oceanic lithosphere or only of continental l ...
Week 7 Quiz: Plate Tectonics Name
... ____4. Why is Earth not growing in spite of sea floor spreading? A. because of subduction in the Atlantic Ocean. C. because of subduction the Pacific Ocean. B. because of subduction in the Indian Ocean. D. because of subduction in the Gulf of Mexico. ____5. The ________ in the asthenosphere is descr ...
... ____4. Why is Earth not growing in spite of sea floor spreading? A. because of subduction in the Atlantic Ocean. C. because of subduction the Pacific Ocean. B. because of subduction in the Indian Ocean. D. because of subduction in the Gulf of Mexico. ____5. The ________ in the asthenosphere is descr ...
Chapter 21 Notes - Valdosta State University
... between their arrivals, scientists can determine the distance to the focus of an earthquake. Three seismographs can be used to triangulate the distance to an event and determine exactly where it happened. Scientists have used data from seismographs to investigate the internal structure of the Earth. ...
... between their arrivals, scientists can determine the distance to the focus of an earthquake. Three seismographs can be used to triangulate the distance to an event and determine exactly where it happened. Scientists have used data from seismographs to investigate the internal structure of the Earth. ...
Tectonic Plates WebQuest - Addison Elementary School District 4
... Almost all of the processes that shape our Earth are affected by what is going on deep under the crust. The formation of volcanoes is evidence that the inside of the Earth is not just solid rock. The growth of mountains implies immense forces at work to push mountains so high. In fact, the movement ...
... Almost all of the processes that shape our Earth are affected by what is going on deep under the crust. The formation of volcanoes is evidence that the inside of the Earth is not just solid rock. The growth of mountains implies immense forces at work to push mountains so high. In fact, the movement ...
Chapter 1 Section 1 Class Questions
... Chapter 10 Lesson 4 Questions 1. What causes the plates to move on top of the mantle? 2. How are plates similar to convection cells? 3. What does the drag of tectonic plates refer to? 4. What is ridge push and what type of plate boundary is created? 5. What is slab pull what type of boundary is crea ...
... Chapter 10 Lesson 4 Questions 1. What causes the plates to move on top of the mantle? 2. How are plates similar to convection cells? 3. What does the drag of tectonic plates refer to? 4. What is ridge push and what type of plate boundary is created? 5. What is slab pull what type of boundary is crea ...
http://www.cotf.edu/ete/modules/msese/earthsysflr/plates1.html 10
... mountain range, while the edge of the oceanic plate has bent downward and dug deep into the Earth. A trench 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 ...
... mountain range, while the edge of the oceanic plate has bent downward and dug deep into the Earth. A trench 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 ...
The Wilson Cycle and a The Wilson Cycle and a Tectonic Rock Cycle
... – Because of the density contrast compared to continental crust ...
... – Because of the density contrast compared to continental crust ...
Type in the following website to your browser, or go to the Class
... _______________15. All the plates have names, usually referring to ___, oceans, or regions of the globe where they are located. _______________16. How many different main types of plate boundaries are there? _______________17. A ___ boundary marks two plates that are moving apart. _______________18. ...
... _______________15. All the plates have names, usually referring to ___, oceans, or regions of the globe where they are located. _______________16. How many different main types of plate boundaries are there? _______________17. A ___ boundary marks two plates that are moving apart. _______________18. ...
Plate Tectonics
... He was a German geophysicist remembered most for his theory of continental drift. His theory stated continents are slowly drifting around the Earth and was not accepted at the time. ...
... He was a German geophysicist remembered most for his theory of continental drift. His theory stated continents are slowly drifting around the Earth and was not accepted at the time. ...
LARAMIDE OROGENY
... Little new plate material produced Laramide Orogeny shut off Farallon plate begins to sink into the mantle due to cold slab pull (denser, thicker plate). ...
... Little new plate material produced Laramide Orogeny shut off Farallon plate begins to sink into the mantle due to cold slab pull (denser, thicker plate). ...
LARAMIDE OROGENY
... Little new plate material produced Laramide Orogeny shut off Farallon plate begins to sink into the mantle due to cold slab pull (denser, thicker plate). ...
... Little new plate material produced Laramide Orogeny shut off Farallon plate begins to sink into the mantle due to cold slab pull (denser, thicker plate). ...
olivia Earthquake Re..
... the USGS, “the Nazca plate moves slightly north of eastwards at a rate varying from approximately 80mm/yr in the south, to approximately 65 mm/yr in the north.” ...
... the USGS, “the Nazca plate moves slightly north of eastwards at a rate varying from approximately 80mm/yr in the south, to approximately 65 mm/yr in the north.” ...
Document
... • beds thicker at hinge and thinner on limbs • radius of outer arc the same as radius of inner arc • can continue indefinitely due to changes in bed thickness • tight folds with low interlimb angle (030º) ...
... • beds thicker at hinge and thinner on limbs • radius of outer arc the same as radius of inner arc • can continue indefinitely due to changes in bed thickness • tight folds with low interlimb angle (030º) ...
plate tectonics
... such as the North American Plate which are moving, yet are nowhere being subducted. Three Thoughts: Mantle Dynamics Large scale convection currents in the upper mantle which are transmitted through the asthenosphere as the main driving force of the tectonic plates This theory was launched by Arthu ...
... such as the North American Plate which are moving, yet are nowhere being subducted. Three Thoughts: Mantle Dynamics Large scale convection currents in the upper mantle which are transmitted through the asthenosphere as the main driving force of the tectonic plates This theory was launched by Arthu ...
PDF file of Lecture 4a - Earth`s Interior and Tectonics
... Lithosphere moves over asthenosphere Subduction recycles lithosphere into Earth’s interior Seafloor spreading adds new material to plate margins (makes new lithosphere) ...
... Lithosphere moves over asthenosphere Subduction recycles lithosphere into Earth’s interior Seafloor spreading adds new material to plate margins (makes new lithosphere) ...
Subduction erosion along the Middle America convergent margin
... response to the material transfer. The megalenses occur at depths at which temperatures calculated from depth to bottom-simulating re¯ectors indicate that the smectite±illite transition has occurred, and the plate interface is entering the zone of stick-slip behaviour20. Thus, the lenses could be as ...
... response to the material transfer. The megalenses occur at depths at which temperatures calculated from depth to bottom-simulating re¯ectors indicate that the smectite±illite transition has occurred, and the plate interface is entering the zone of stick-slip behaviour20. Thus, the lenses could be as ...
Flipped from head to toe: 100 years of continental drift
... Secondly, it could be shown that the ocean floor is lacked the engine to break apart the supercontinent and move huge continental masses very young in the immediate vicinity of the midocean ridges. With increasing distance from these over the Earth's surface. Indeed, only by the undersea mountains, ...
... Secondly, it could be shown that the ocean floor is lacked the engine to break apart the supercontinent and move huge continental masses very young in the immediate vicinity of the midocean ridges. With increasing distance from these over the Earth's surface. Indeed, only by the undersea mountains, ...
Plate Tectonics – Lab
... By the late 1960’s, scientists had joined together to create the plate tectonic model. The plate tectonic model is used to describe various geologic features, geological rock environments, and the pattern of volcanism as well as earthquake activity. According to the plate tectonic model, the surface ...
... By the late 1960’s, scientists had joined together to create the plate tectonic model. The plate tectonic model is used to describe various geologic features, geological rock environments, and the pattern of volcanism as well as earthquake activity. According to the plate tectonic model, the surface ...
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.