Plate Tectonics Activity - Blair Community Schools
... 1. _______________ was the name of the supercontinent that existed millions of years ago. 2. The surface, or ____________, of the Earth is broken into about ____ plates that float on the liquid _______________. 3. When the plates move, the ________________________ shift along with them. We don’t not ...
... 1. _______________ was the name of the supercontinent that existed millions of years ago. 2. The surface, or ____________, of the Earth is broken into about ____ plates that float on the liquid _______________. 3. When the plates move, the ________________________ shift along with them. We don’t not ...
Types of Plate Boundaries
... the boundary between the Eurasian and North American continental tectonic plates. ...
... the boundary between the Eurasian and North American continental tectonic plates. ...
Testing Plate tectonics
... Testing Plate tectonics 3. Ocean Drilling: • The Deep Sea Drilling Project from 1968 to 1983 used the drilling ship Glomar Challenger to drill hundreds of meters into the sediments and underlying crust. • When the oldest sediment from each drill site was plotted against its distance from the ridge ...
... Testing Plate tectonics 3. Ocean Drilling: • The Deep Sea Drilling Project from 1968 to 1983 used the drilling ship Glomar Challenger to drill hundreds of meters into the sediments and underlying crust. • When the oldest sediment from each drill site was plotted against its distance from the ridge ...
How do subduction zones end?
... as a rapidly rotating hinge where one segment of a subduction system is rotating relative to another (Fig. 1)1. All these features lie beneath, or are exposed, onshore. Thus, the northern edge of the subducted Australian plate, along the Puysegur subduction zone, occurs beneath southern South Island ...
... as a rapidly rotating hinge where one segment of a subduction system is rotating relative to another (Fig. 1)1. All these features lie beneath, or are exposed, onshore. Thus, the northern edge of the subducted Australian plate, along the Puysegur subduction zone, occurs beneath southern South Island ...
Sea-floor Spreading Section 4-4
... • 1. Molten material- presence of rocks that can only form when molten material hardens quickly after erupting under water. (Pillow Lava) ...
... • 1. Molten material- presence of rocks that can only form when molten material hardens quickly after erupting under water. (Pillow Lava) ...
File
... Wegener thought the continents were pushing through a stationary ocean floor but ________________________, so many people rejected his theory. Technological Advances In the early 1900s most people, including scientists, believed that the ocean floor was flat. Advances in technology in the 1940s and ...
... Wegener thought the continents were pushing through a stationary ocean floor but ________________________, so many people rejected his theory. Technological Advances In the early 1900s most people, including scientists, believed that the ocean floor was flat. Advances in technology in the 1940s and ...
Oceanic Crust - River Dell Regional School District
... • The Earth’s crust is divided into 12 major plates which are moved in various directions. • This plate motion causes them to collide, pull apart, or scrape against each other. • Each type of interaction causes a characteristic set of Earth structures or ...
... • The Earth’s crust is divided into 12 major plates which are moved in various directions. • This plate motion causes them to collide, pull apart, or scrape against each other. • Each type of interaction causes a characteristic set of Earth structures or ...
Plate tectonics lecture
... Unifying theory of geology • Extension of Wegener’s continental drift theory from the early 20th century • Needed not only information about rocks but also breakthroughs in geochronology and geophysics • Continental drift failed to provide a sufficient mechanism (tides and wind were not enough); pl ...
... Unifying theory of geology • Extension of Wegener’s continental drift theory from the early 20th century • Needed not only information about rocks but also breakthroughs in geochronology and geophysics • Continental drift failed to provide a sufficient mechanism (tides and wind were not enough); pl ...
Lecture 2
... Unifying theory of geology • Extension of Wegener’s continental drift theory from the early 20th century • Needed not only information about rocks but also breakthroughs in geochronology and geophysics • Continental drift failed to provide a sufficient mechanism (tides and wind were not enough); pl ...
... Unifying theory of geology • Extension of Wegener’s continental drift theory from the early 20th century • Needed not only information about rocks but also breakthroughs in geochronology and geophysics • Continental drift failed to provide a sufficient mechanism (tides and wind were not enough); pl ...
Earth Science Unit 2 Review Worksheet Name Block Circle the letter
... d. Magnetic 10. The driving force of tectonic plates are related to convection currents in Earth’s a. Crust b. Mantle c. Inner core d. Outer core 11. Convergent boundaries are classified according to the a. Types of fossils found at the boundaries b. Rate at which the plates collide c. Compass direc ...
... d. Magnetic 10. The driving force of tectonic plates are related to convection currents in Earth’s a. Crust b. Mantle c. Inner core d. Outer core 11. Convergent boundaries are classified according to the a. Types of fossils found at the boundaries b. Rate at which the plates collide c. Compass direc ...
Tectonics 1 - Montville.net
... • Ages of rocks near mid-ocean ridges was youngest • Age increased away from ridge • Age of rocks with same magnetism is same • Therefore must have been formed at mid ocean ridge and been forced away by formation of new crust ...
... • Ages of rocks near mid-ocean ridges was youngest • Age increased away from ridge • Age of rocks with same magnetism is same • Therefore must have been formed at mid ocean ridge and been forced away by formation of new crust ...
plate tectonics - Science with Ms. Reathaford!
... expand and decrease in density. As it warms, it rises (buoyancy). The cooler part then sinks (gravity). This up and down pattern is a convection current. In the mantle, convection currents are set in motion by the transfer of energy between the Earth’s hot interior and its cooler exterior. ...
... expand and decrease in density. As it warms, it rises (buoyancy). The cooler part then sinks (gravity). This up and down pattern is a convection current. In the mantle, convection currents are set in motion by the transfer of energy between the Earth’s hot interior and its cooler exterior. ...
Plate Tectonics and Deformation of the Crust
... than continental crust so it is subducted under the continental crust. ► This is referred to as a subduction zone. ► Characteristics: Deep ocean trench Volcanic mountains such as the Cascade Range in the Pacific Northwest. ...
... than continental crust so it is subducted under the continental crust. ► This is referred to as a subduction zone. ► Characteristics: Deep ocean trench Volcanic mountains such as the Cascade Range in the Pacific Northwest. ...
Plate Tectonics*what is it?
... Evidence of these landmass collisions and splits comes from fossils, landform shape, features, and rock structures, and climate change. Landmass changes can occur at hot spots within ______Lithospheric____ plates; Earth’s landmasses_ will continue to move and change during the geologic time of the f ...
... Evidence of these landmass collisions and splits comes from fossils, landform shape, features, and rock structures, and climate change. Landmass changes can occur at hot spots within ______Lithospheric____ plates; Earth’s landmasses_ will continue to move and change during the geologic time of the f ...
Nance Chapter 02 Lecture PPT
... • Theory of plate tectonics is the unifying theory of Earth science. • Earth’s surface is broken into plates that move slowly relative to each other. • Divergence of plates at ocean spreading centers and continental rifts • Convergence of plates at subduction zones and continental collision zones • ...
... • Theory of plate tectonics is the unifying theory of Earth science. • Earth’s surface is broken into plates that move slowly relative to each other. • Divergence of plates at ocean spreading centers and continental rifts • Convergence of plates at subduction zones and continental collision zones • ...
Name PLATE TECTONICS (75 points) Multiple Choice – 2 Points
... magma from the mantle melts through the crust and moves to the surface. Another exception is a collision between two oceanic plates. In such a collision, one of the oceanic plates is subducted. The result is melting of the plate and the formation of magma, which erupts to form a chain of volcanic ...
... magma from the mantle melts through the crust and moves to the surface. Another exception is a collision between two oceanic plates. In such a collision, one of the oceanic plates is subducted. The result is melting of the plate and the formation of magma, which erupts to form a chain of volcanic ...
Power Notes –Plate Tectonics
... • The _______________ ranges are called mid-ocean ridges. When the mid-ocean ridge actually builds up enough height to extend above the water’s ____________, it forms an island. Iceland is an example of such an island. Located at a ________________ plate boundary between the North American and Europ ...
... • The _______________ ranges are called mid-ocean ridges. When the mid-ocean ridge actually builds up enough height to extend above the water’s ____________, it forms an island. Iceland is an example of such an island. Located at a ________________ plate boundary between the North American and Europ ...
First Midterm Study Guide for Geol-308
... These are basaltic eruptions that took 1.5m years to erupt from the NE region of OR. They flowed hundreds of miles—all the way to the Pacific ocean and down the Willamette valley. The eruptions began 50m years ago. They’re basalt. What is an ophiolite sequence and why do we find them in the Blue Mtn ...
... These are basaltic eruptions that took 1.5m years to erupt from the NE region of OR. They flowed hundreds of miles—all the way to the Pacific ocean and down the Willamette valley. The eruptions began 50m years ago. They’re basalt. What is an ophiolite sequence and why do we find them in the Blue Mtn ...
Plate Tectonics Basics Note Slides File
... • When taking plate type and movement into account, there are 5 possible tectonic plate interactions. These are: – Continental Collision Boundaries – Divergent Plate Boundaries – Hotspots – Subduction Boundaries – Transform Boundaries ...
... • When taking plate type and movement into account, there are 5 possible tectonic plate interactions. These are: – Continental Collision Boundaries – Divergent Plate Boundaries – Hotspots – Subduction Boundaries – Transform Boundaries ...
Theory of Plate Tectonics IV
... Prior to a continental collision, the landmasses are separated by oceanic crust, formed during an earlier episode of seafloor spreading. As the continental blocks converge, the intervening sea floor is subducted beneath one of the plates. ...
... Prior to a continental collision, the landmasses are separated by oceanic crust, formed during an earlier episode of seafloor spreading. As the continental blocks converge, the intervening sea floor is subducted beneath one of the plates. ...
Mountains, Volcanoes and Boundaries Quiz
... b. being forced under another tectonic plate d. collidng with another tectonic plate and at a subduction zone. being forced upward. In examining an area, a geologist discovered a thrust fault. He sketched the fault shown. ...
... b. being forced under another tectonic plate d. collidng with another tectonic plate and at a subduction zone. being forced upward. In examining an area, a geologist discovered a thrust fault. He sketched the fault shown. ...
Quiz 4
... 16. The Hawaiian Islands are a result of the Pacific Plate passing over a hot spot. 17. As rocks cool, they become denser and sink. 18. A hypothesis is a scientific theory that has been tested. ...
... 16. The Hawaiian Islands are a result of the Pacific Plate passing over a hot spot. 17. As rocks cool, they become denser and sink. 18. A hypothesis is a scientific theory that has been tested. ...
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.