(>8.0 magnitude, past 100 yrs) Active Volcanoes
... 3. If you were to sample and date the rocks starting at the Mid Ocean Ridge and moving toward Subduction Zone on the right what change would you see in the age of the rocks? ...
... 3. If you were to sample and date the rocks starting at the Mid Ocean Ridge and moving toward Subduction Zone on the right what change would you see in the age of the rocks? ...
Group Quiz Review Game
... 2a. It contains the oldest rocks known. 3a. It is located where magma rises to the surface of the oceanic crust. 4a. It creates composite volcanoes from the melting of low-density crust. 5a. It is the longest mountain chain in the world, but most of it is under water. 6a. They intersect mid ocean ri ...
... 2a. It contains the oldest rocks known. 3a. It is located where magma rises to the surface of the oceanic crust. 4a. It creates composite volcanoes from the melting of low-density crust. 5a. It is the longest mountain chain in the world, but most of it is under water. 6a. They intersect mid ocean ri ...
Earth`s Landforms
... • Plate tectonics – Large, slow moving plates that make up Earth’s surface. When moved, they carry continents and the ocean floors! ...
... • Plate tectonics – Large, slow moving plates that make up Earth’s surface. When moved, they carry continents and the ocean floors! ...
CRCT Review - Chapter 7 Plate Tectonics.
... _____ 10. What hypothesis by Alfred Wegener explains why continents seem to fit together? a. continental spreading c. Wegener’s puzzle b. plate tectonics d. continental drift _____ 11. What did Wegener hypothesize happened to the continents? a. They broke up and re-formed. b. They drifted together t ...
... _____ 10. What hypothesis by Alfred Wegener explains why continents seem to fit together? a. continental spreading c. Wegener’s puzzle b. plate tectonics d. continental drift _____ 11. What did Wegener hypothesize happened to the continents? a. They broke up and re-formed. b. They drifted together t ...
9th grade ch 3 notes simplified..
... the less dense continental plate, producing a subduction zone and a trench. If both are continents, the rock will fold, fault, and lead to mountain-building – like the Himalayas! 2. Transform: 2 plates slide past each other – like at the San Andreas fault. 3. Divergent: This causes a rift – new cr ...
... the less dense continental plate, producing a subduction zone and a trench. If both are continents, the rock will fold, fault, and lead to mountain-building – like the Himalayas! 2. Transform: 2 plates slide past each other – like at the San Andreas fault. 3. Divergent: This causes a rift – new cr ...
Name
... Alfred Wegener was a German meteorologist who proposed the theory of Continental Drift. He hypothesized that all of the Earth’s continents were once joined as a super-continent that he called Pangaea. Wegener’s evidence was not disputed. He cited fossil evidence which included a fern-like plant call ...
... Alfred Wegener was a German meteorologist who proposed the theory of Continental Drift. He hypothesized that all of the Earth’s continents were once joined as a super-continent that he called Pangaea. Wegener’s evidence was not disputed. He cited fossil evidence which included a fern-like plant call ...
File
... Introduction: Plate tectonics explains the structure of Earth’s crust and the phenomena resulting from the interactions of plates that make up the rigid lithosphere and ground we stand upon. The lithosphere is Earth’s outer layer of ground, including the crust and mantle. Below that is the asthenosp ...
... Introduction: Plate tectonics explains the structure of Earth’s crust and the phenomena resulting from the interactions of plates that make up the rigid lithosphere and ground we stand upon. The lithosphere is Earth’s outer layer of ground, including the crust and mantle. Below that is the asthenosp ...
How Are Landforms Created and Changed Handout
... divergent boundary - ____________________________________________________ ______________________________________________________________________ ______________________________________________________________________ Magma moves ___________ between the plates, creating new rock. Volcanic ________ is ...
... divergent boundary - ____________________________________________________ ______________________________________________________________________ ______________________________________________________________________ Magma moves ___________ between the plates, creating new rock. Volcanic ________ is ...
Lecture 5 - Plate Tectonics and Rocks
... Carrying diamonds and other samples from Earth's mantle, this magma rises and erupts in small but violent volcanoes. Just beneath such volcanoes is a carrot-shaped "pipe" filled with volcanic rock, mantle fragments, and some embedded diamonds. The rock is called kimberlite after the city of Kimberle ...
... Carrying diamonds and other samples from Earth's mantle, this magma rises and erupts in small but violent volcanoes. Just beneath such volcanoes is a carrot-shaped "pipe" filled with volcanic rock, mantle fragments, and some embedded diamonds. The rock is called kimberlite after the city of Kimberle ...
Chapter 11 Section 1 Notes
... • The mobile rock beneath the rigid plates is believed to be moving in a circular manner. • The heated magma rises to the surface, spreads and begins to cool, then sinks to the bottom of the mantle where it is reheated and rises again. ...
... • The mobile rock beneath the rigid plates is believed to be moving in a circular manner. • The heated magma rises to the surface, spreads and begins to cool, then sinks to the bottom of the mantle where it is reheated and rises again. ...
TECTONIC PLATE MOVEMENT Tectonic plates rest on the
... circulating. The tectonic plates in the lithosphere are carried on the asthenosphere like long, heavy boxes moved on huge rollers. Over millions of years, convection currents carry the plates thousands of kilometers. As plates shift, one plate cannot move without affecting the other plates nearby. P ...
... circulating. The tectonic plates in the lithosphere are carried on the asthenosphere like long, heavy boxes moved on huge rollers. Over millions of years, convection currents carry the plates thousands of kilometers. As plates shift, one plate cannot move without affecting the other plates nearby. P ...
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 ...
What is the name of the SUPERCONTINENT that was once one land
... • Heat transfers by movement of currents in liquids and gasses. This is caused by differences in temperature and density. An example of this type of heat transfer occurs when mantle rock moves from near the core, towards the crust, and back again. A. Radiation B. Conduction C. Convection D. Compact ...
... • Heat transfers by movement of currents in liquids and gasses. This is caused by differences in temperature and density. An example of this type of heat transfer occurs when mantle rock moves from near the core, towards the crust, and back again. A. Radiation B. Conduction C. Convection D. Compact ...
Take A Journey to… - Mr. Jensen`s Science
... Glossopteris, in Africa, South America, Antarctica, and Australia. • Fossils of the reptile Mesosaurus were found in Africa and South America. These were freshwater and land animal, so it is unlikely they swam across the ocean. • Wegener also found fossils in cold, icy Antarctica of organisms that l ...
... Glossopteris, in Africa, South America, Antarctica, and Australia. • Fossils of the reptile Mesosaurus were found in Africa and South America. These were freshwater and land animal, so it is unlikely they swam across the ocean. • Wegener also found fossils in cold, icy Antarctica of organisms that l ...
Plate Tectonics and Earth Structure
... buoyant, and will rise above the oceanic plate. The oceanic plate is “subducted” under the continental one. Result = volcanic mountain chain. ...
... buoyant, and will rise above the oceanic plate. The oceanic plate is “subducted” under the continental one. Result = volcanic mountain chain. ...
of the ocean floor? - Bakersfield College
... environments, and patterns of EQ’s and volcanism. • Ridged lithospheric plates (continents + ocean floor) ride along the soft layer (like hot wax) called the asthenosphere • Plates spread apart, collide, and slide past one another. • EQ’s, crustal deformation, and volcanism take place at plate bound ...
... environments, and patterns of EQ’s and volcanism. • Ridged lithospheric plates (continents + ocean floor) ride along the soft layer (like hot wax) called the asthenosphere • Plates spread apart, collide, and slide past one another. • EQ’s, crustal deformation, and volcanism take place at plate bound ...
Plate Tectonic Theory
... A Canadian geologist named Tuzo Wilson was the person who proposed the Plate Tectonic Theory. ...
... A Canadian geologist named Tuzo Wilson was the person who proposed the Plate Tectonic Theory. ...
Plate Tectonics Theory
... slides and descends downward toward the mantle and eventually begins to melt. • Some of the lithosphere gets compacted into the crust, causing the plates to thicken. • This process is called accretion. • This thickening of the crust creates a difference in topography at the surface. • Lithosphere th ...
... slides and descends downward toward the mantle and eventually begins to melt. • Some of the lithosphere gets compacted into the crust, causing the plates to thicken. • This process is called accretion. • This thickening of the crust creates a difference in topography at the surface. • Lithosphere th ...
Plate tectonics
... 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. ...
Plate Boundaries PPT - Coventry Local Schools
... ▪ Plate Tectonics – the theory that the Earth’s lithosphere is divided into tectonic plates that move around on top of the asthenosphere ▪ The lithosphere is made of two types of crust ▪ Continental – Less dense, Thicker on average ▪ Oceanic – More dense, Thinner on average ...
... ▪ Plate Tectonics – the theory that the Earth’s lithosphere is divided into tectonic plates that move around on top of the asthenosphere ▪ The lithosphere is made of two types of crust ▪ Continental – Less dense, Thicker on average ▪ Oceanic – More dense, Thinner on average ...
The entire earth is still changing, due to the slow convection of soft
... Plate boundaries may be convergent, divergent, and transform…. ...
... Plate boundaries may be convergent, divergent, and transform…. ...
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.