APES – Earth Systems
... Convergent plate boundaries If oceanic and continental plates converge – one plate is subducted and leads to volcanism. – eg. Japan, ...
... Convergent plate boundaries If oceanic and continental plates converge – one plate is subducted and leads to volcanism. – eg. Japan, ...
1.1.2 Earth Layers EQ Jan 04
... (b) The data below shows the increase in temperature with depth. Depth / km ...
... (b) The data below shows the increase in temperature with depth. Depth / km ...
Week 27 CCA Review
... My student ____________________________studied for the Week 30 CCA for at least 30 minutes. ...
... My student ____________________________studied for the Week 30 CCA for at least 30 minutes. ...
continental drift and plate tectonics
... When plates diverge or separate, they move away from each other causing the crust in between to stretch and become thin and brittle. This make it easy for magma to rise up and create mid-ocean ridges or rift valleys. ...
... When plates diverge or separate, they move away from each other causing the crust in between to stretch and become thin and brittle. This make it easy for magma to rise up and create mid-ocean ridges or rift valleys. ...
Earth Science
... occurs faster than new rock is formed Atlantic Ocean expanding – fewer deep ocean trenches – as ocean floor spreads, pushes continents – has nowhere to go ...
... occurs faster than new rock is formed Atlantic Ocean expanding – fewer deep ocean trenches – as ocean floor spreads, pushes continents – has nowhere to go ...
Plate tectonics and the distribution of volcanoes| sample
... Hot spots can occur in the middle of crustal plates. It is a weakened area that is not a fault line. This weakened area of crust can not take the pressure of the up rising magma underneath it, the magma as a result forces its way through the fault, to the surface. This type of tectonic activity caus ...
... Hot spots can occur in the middle of crustal plates. It is a weakened area that is not a fault line. This weakened area of crust can not take the pressure of the up rising magma underneath it, the magma as a result forces its way through the fault, to the surface. This type of tectonic activity caus ...
HERE
... There are four basic Plate movements or boundaries: 1. Divergent: This is where the plates move apart, new magma wells up to the surface, forming new crust. The Mid-Atlantic ridge is a prime example. New land is created 2. Convergent: Two plates come together. Usually one of the plates subducts (go ...
... There are four basic Plate movements or boundaries: 1. Divergent: This is where the plates move apart, new magma wells up to the surface, forming new crust. The Mid-Atlantic ridge is a prime example. New land is created 2. Convergent: Two plates come together. Usually one of the plates subducts (go ...
Earth`s Crust
... • Where plates come together they form boundaries. • There are three types of boundaries. 1) Divergent 2) Convergent 3) Transform ...
... • Where plates come together they form boundaries. • There are three types of boundaries. 1) Divergent 2) Convergent 3) Transform ...
File
... Subduction • Heavier plate subsides under lighter plate. • Magma erupts over the thinner plate • Sometimes magma may pile over on the ocean to form islands ...
... Subduction • Heavier plate subsides under lighter plate. • Magma erupts over the thinner plate • Sometimes magma may pile over on the ocean to form islands ...
Y10Ge U1B_1 Hazards Oct 15 PP
... the land crust is less dense and so floats over the oceanic crust which is forced down into the magma where it melts. • This is called a subduction zone. • Sometimes the edge of the continental crust is forced up at the edge by displaced magma which then escapes through volcanoes. The Andes Mountain ...
... the land crust is less dense and so floats over the oceanic crust which is forced down into the magma where it melts. • This is called a subduction zone. • Sometimes the edge of the continental crust is forced up at the edge by displaced magma which then escapes through volcanoes. The Andes Mountain ...
Introduction to Planet Earth
... • Where the oceanic crust bends downward and sinks back into the mantle • Pacific Ocean is shrinking!! • Subduction is occurring faster than new crust is being produced. ...
... • Where the oceanic crust bends downward and sinks back into the mantle • Pacific Ocean is shrinking!! • Subduction is occurring faster than new crust is being produced. ...
8.E.1 Vocab - Schoolwires.net
... Theory of Plate Tectonics – a theory that states that Earth’s lithosphere, or land, is broken into large sections called tectonic plates that move and change position over time (aka continental drift) Fault – a break or crack in Earth’s surface along which movement occurs Convergent Boundary – the l ...
... Theory of Plate Tectonics – a theory that states that Earth’s lithosphere, or land, is broken into large sections called tectonic plates that move and change position over time (aka continental drift) Fault – a break or crack in Earth’s surface along which movement occurs Convergent Boundary – the l ...
The Theory of Tectonic Plates
... Two tectonic plates move away from each other. On the sea floor at the mid ocean ridge this is called sea floor spreading. As the plates move apart, magma rises to fill the gaps. The magma is cooled and forms new ocean floor. The volcanic country of Iceland, which straddles the Mid-Atlantic ...
... Two tectonic plates move away from each other. On the sea floor at the mid ocean ridge this is called sea floor spreading. As the plates move apart, magma rises to fill the gaps. The magma is cooled and forms new ocean floor. The volcanic country of Iceland, which straddles the Mid-Atlantic ...
Use this page to answer questions 1 – 3.
... crash together, pull apart, or slide past each other. Plate boundaries are where two crustal plates meet. Plate boundaries have different names depending on how the two plates move and interact. Plates that crash together to form mountains or volcanoes is called a Convergent Boundary. Plates that pu ...
... crash together, pull apart, or slide past each other. Plate boundaries are where two crustal plates meet. Plate boundaries have different names depending on how the two plates move and interact. Plates that crash together to form mountains or volcanoes is called a Convergent Boundary. Plates that pu ...
Document
... The tectonic plates rest on the asthenosphere, which is soft, hot rock that moves slowly. Rock in this layer (and in the mantle) move by convection, which is the energy transfer by the movement of a material. The hot, soft rock of the asthenosphere rises to the surface, then cools and sinks, where i ...
... The tectonic plates rest on the asthenosphere, which is soft, hot rock that moves slowly. Rock in this layer (and in the mantle) move by convection, which is the energy transfer by the movement of a material. The hot, soft rock of the asthenosphere rises to the surface, then cools and sinks, where i ...
earth interior - Red Hook Central Schools
... Seismic waves tell us that Earth has 3 layers: • Crust (solid rigid outer rock layer) Moho separates crust from mantle • Mantle (beneath the crust, not so solid) 80% of Earth is mantle • Core (outer core = liquid, inner core = solid) made of nickel and iron (magnetic) very dense! Earths interior an ...
... Seismic waves tell us that Earth has 3 layers: • Crust (solid rigid outer rock layer) Moho separates crust from mantle • Mantle (beneath the crust, not so solid) 80% of Earth is mantle • Core (outer core = liquid, inner core = solid) made of nickel and iron (magnetic) very dense! Earths interior an ...
Volcano Guided Reading with answers
... melts through the crust above it. They formed over millions of years as the Pacific plate drifted over hot spots. ...
... melts through the crust above it. They formed over millions of years as the Pacific plate drifted over hot spots. ...
Sea-Floor Spreading and Plate Tectonics Project
... ❏ Why does the oceanic crust get pulled back down into the mantle (density has a big part in this explanation)? This project is the introduction to topic of Plate Tectonics… there is a lot more going on with our Earth’s crust and there is a lot of information to discuss regarding those broken pieces ...
... ❏ Why does the oceanic crust get pulled back down into the mantle (density has a big part in this explanation)? This project is the introduction to topic of Plate Tectonics… there is a lot more going on with our Earth’s crust and there is a lot of information to discuss regarding those broken pieces ...
Study Guide for Plate Tectonics and Volcanoes Test Chap 9 and 10
... Divergent (between oceanic plates) Divergent (on land, aka rifting) Convergent (oceanic-oceanic) Convergent (oceanic-continental) Convergent (continental-continental) Transform Suggestion: see plate boundary summary table we made in class that drew comparison between boundaries Note: ...
... Divergent (between oceanic plates) Divergent (on land, aka rifting) Convergent (oceanic-oceanic) Convergent (oceanic-continental) Convergent (continental-continental) Transform Suggestion: see plate boundary summary table we made in class that drew comparison between boundaries Note: ...
plates - edl.io
... Deep Ocean Trench: usually forms along a subduction zone as oceanic crust moves down and melts, becoming part of the mantle material. Some magma rises through the continental crust and produces volcanic mountains ...
... Deep Ocean Trench: usually forms along a subduction zone as oceanic crust moves down and melts, becoming part of the mantle material. Some magma rises through the continental crust and produces volcanic mountains ...
Quiz 3
... 2. A plate includes only Continental Crust. True or False _________ 3. Which are the lightest plates? _____________________________ 4. What is a “plate” to a Geologist? _____________________________ ...
... 2. A plate includes only Continental Crust. True or False _________ 3. Which are the lightest plates? _____________________________ 4. What is a “plate” to a Geologist? _____________________________ ...
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.