Magma Type and Plate Margins
... Some of this basic magma will cool the the fractures feeding up to the surface. What rock and structure will form? ...
... Some of this basic magma will cool the the fractures feeding up to the surface. What rock and structure will form? ...
oceanic crust
... • Geologists study volcanoes, floods, earthquakes, and landslides. • These natural processes are only hazards when people try to live where they occur. ...
... • Geologists study volcanoes, floods, earthquakes, and landslides. • These natural processes are only hazards when people try to live where they occur. ...
PLATE MARGINS
... Transform Faults Transform faults are places where two plates of the Earth are sliding past each other. This type of fault arises because of the nature of long, divergent zones. Various forces cause divergent zones to become offset, rather than be one continuous rift zone. Transform faults are thos ...
... Transform Faults Transform faults are places where two plates of the Earth are sliding past each other. This type of fault arises because of the nature of long, divergent zones. Various forces cause divergent zones to become offset, rather than be one continuous rift zone. Transform faults are thos ...
oceanic crust
... • Geologists study volcanoes, floods, earthquakes, and landslides. • These natural processes are only hazards when people try to live where they occur. ...
... • Geologists study volcanoes, floods, earthquakes, and landslides. • These natural processes are only hazards when people try to live where they occur. ...
Chapter 8 - reynolds study center
... 9. The place where an earthquake originates is called the _______________. The point on the Earth’s surface directly above this point of origin is called the _______________. 10. Name two types of surface waves: _______________ and _______________. 11. The Earth’s inner core is solid/liquid (circle ...
... 9. The place where an earthquake originates is called the _______________. The point on the Earth’s surface directly above this point of origin is called the _______________. 10. Name two types of surface waves: _______________ and _______________. 11. The Earth’s inner core is solid/liquid (circle ...
Earth`s structure File
... What is a plate boundary? The area where two tectonic plates meet is called a plate boundary. Mountains, volcanoes and oceanic trenches are formed at plate boundaries, and earthquakes are more likely to occur here. ...
... What is a plate boundary? The area where two tectonic plates meet is called a plate boundary. Mountains, volcanoes and oceanic trenches are formed at plate boundaries, and earthquakes are more likely to occur here. ...
6. Earth`s Structure v2.0
... What is a plate boundary? The area where two tectonic plates meet is called a plate boundary. Mountains, volcanoes and oceanic trenches are formed at plate boundaries, and earthquakes are more likely to occur here. ...
... What is a plate boundary? The area where two tectonic plates meet is called a plate boundary. Mountains, volcanoes and oceanic trenches are formed at plate boundaries, and earthquakes are more likely to occur here. ...
Convection Currents Activity - Mamanakis
... 3. What was discovered after World War II that caused scientists to eventually accept Wegener’s Theory of Continental Drift? 4. What is the mechanism called that moves or drives the tectonic plates across the surface of the Earth? 5. Color and label this diagram of the Earth’s Convection Currents. C ...
... 3. What was discovered after World War II that caused scientists to eventually accept Wegener’s Theory of Continental Drift? 4. What is the mechanism called that moves or drives the tectonic plates across the surface of the Earth? 5. Color and label this diagram of the Earth’s Convection Currents. C ...
Faith and Science: The Age of the Earth from
... Other Evidence: Age of rocks on the seafloor (1970 – present) Age distribution of oceanic rocks shows increased age away from ridge crests. Oceanic basalts only get to be a few hundred million years old, whereas continental rocks can be billions of years old. ...
... Other Evidence: Age of rocks on the seafloor (1970 – present) Age distribution of oceanic rocks shows increased age away from ridge crests. Oceanic basalts only get to be a few hundred million years old, whereas continental rocks can be billions of years old. ...
Plate Tectonics Web Activity Solns
... the HOT magma below it. This creates a high point called a RIDGE. In the center of this ridge is a shallower valley called a RIFT. These ridges and rifts, are found mostly under the worlds oceans and cover the earth like the seams on a baseball. VOLCANOES and earthquakes are found along divergent bo ...
... the HOT magma below it. This creates a high point called a RIDGE. In the center of this ridge is a shallower valley called a RIFT. These ridges and rifts, are found mostly under the worlds oceans and cover the earth like the seams on a baseball. VOLCANOES and earthquakes are found along divergent bo ...
Plate Tectonics Lecture Notes
... ocean floor and need to grow in shallow water so that the algae living inside them can get sunlight. The algae living inside the coral use the sunlight for ___________________________________, and give some of the _________________ that they make to the corals. We think that the original coral reef ...
... ocean floor and need to grow in shallow water so that the algae living inside them can get sunlight. The algae living inside the coral use the sunlight for ___________________________________, and give some of the _________________ that they make to the corals. We think that the original coral reef ...
The Earth`s Layers Foldable
... 4. The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called ___________________________________. ...
... 4. The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called ___________________________________. ...
Our Earth
... in the angle at which the sun’s rays strike the earth’s surface If the North Pole is tilted away from the sun, the angle of the sun’s rays on the ...
... in the angle at which the sun’s rays strike the earth’s surface If the North Pole is tilted away from the sun, the angle of the sun’s rays on the ...
Earth Changes 2001 - Michael Mandeville
... predict the Earth’s rendezvous with another major shift in the poles when the Earth’s crust suddenly avalanches in a great circular motion which flings the polar zones towards the Equator and causes widespread earthquakes, volcanic eruptions, and huge 300 foot tidal surges which flood inland in many ...
... predict the Earth’s rendezvous with another major shift in the poles when the Earth’s crust suddenly avalanches in a great circular motion which flings the polar zones towards the Equator and causes widespread earthquakes, volcanic eruptions, and huge 300 foot tidal surges which flood inland in many ...
Volcano Project Checklist
... Describe the theory of Continental Drift and the evidence used to support it. ____ Explain why scientists did not accept the theory when it was first proposed. ____ Explain how Sea Floor Spreading is related to continental drift. ...
... Describe the theory of Continental Drift and the evidence used to support it. ____ Explain why scientists did not accept the theory when it was first proposed. ____ Explain how Sea Floor Spreading is related to continental drift. ...
File
... thinner under the oceans and much thicker in mountain ranges. Oceanic Crust There are two kinds of crust. Oceanic crust is mostly made of basalt lavas that flow onto the seafloor. It is relatively thin, between 5 to 12 kilometers thick. Thick layers of mud cover much of the ocean floor. Continental ...
... thinner under the oceans and much thicker in mountain ranges. Oceanic Crust There are two kinds of crust. Oceanic crust is mostly made of basalt lavas that flow onto the seafloor. It is relatively thin, between 5 to 12 kilometers thick. Thick layers of mud cover much of the ocean floor. Continental ...
Jones County Schools 2nd Nine Weeks 6th Grade Social Studies
... The rock is the same age no matter how far away from the crack. The rock farther away from the crack is older than the rock closer to the crack. The rock farther away from the crack is younger than the rock closer to the crack. The rock farther away from the crack is composed of different material t ...
... The rock is the same age no matter how far away from the crack. The rock farther away from the crack is older than the rock closer to the crack. The rock farther away from the crack is younger than the rock closer to the crack. The rock farther away from the crack is composed of different material t ...
Ocean secret (Geography)
... of pole shifts in the geologic record. They have also matched the particles on both sides of the ridge, showing that they have spread apart. The discovery of these matching “magnetic stripes” in the rocks surrounding the mid-ocean ridges propelled the theory of plate tectonics into the forefront of ...
... of pole shifts in the geologic record. They have also matched the particles on both sides of the ridge, showing that they have spread apart. The discovery of these matching “magnetic stripes” in the rocks surrounding the mid-ocean ridges propelled the theory of plate tectonics into the forefront of ...
Plate tectonics
... Slab-pull: Current scientific opinion is that the asthenosphere is insufficiently competent or rigid to directly cause motion by friction along the base of the lithosphere. Slab pull is therefore most widely thought to be the greatest force acting on the plates. In this current understanding, plate mot ...
... Slab-pull: Current scientific opinion is that the asthenosphere is insufficiently competent or rigid to directly cause motion by friction along the base of the lithosphere. Slab pull is therefore most widely thought to be the greatest force acting on the plates. In this current understanding, plate mot ...
Practice Questions - Earth`s History 1
... 9. The Mid-Atlantic Ridge exists between the African and South American geologic plates. Which process most often occurs at the Mid-Atlantic Ridge? A. Destruction of crust B. Scraping of two geologic plates at a fault line C. Subduction of geologic plates D. Spreading of the sea floor ...
... 9. The Mid-Atlantic Ridge exists between the African and South American geologic plates. Which process most often occurs at the Mid-Atlantic Ridge? A. Destruction of crust B. Scraping of two geologic plates at a fault line C. Subduction of geologic plates D. Spreading of the sea floor ...
Microsoft Word - Plate Tectonics Lab
... and learn about the three types of plate boundaries and answer the questions below. 1. What are the three types of plate boundaries? ...
... and learn about the three types of plate boundaries and answer the questions below. 1. What are the three types of plate boundaries? ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.