Plate Tectonics Review
... 1. The Theory of Plate Tectonics combines Continental Drift with the processes of ____________________ & ____________________. 2. Lithospheric Plates includes the two types of crust (______________ or _______________) and the upper rigid part of the mantle. 3. Oceanic Crust is ______________________ ...
... 1. The Theory of Plate Tectonics combines Continental Drift with the processes of ____________________ & ____________________. 2. Lithospheric Plates includes the two types of crust (______________ or _______________) and the upper rigid part of the mantle. 3. Oceanic Crust is ______________________ ...
Restless Earth - The Geographer online
... • The crust is the layer you live on. •It is a thin layer of rock around the Earth •There are two types of crust: 1. Continental crust (where there is land) which is 30km thick 2. Oceanic crust (under the sea) which is 5km thick ...
... • The crust is the layer you live on. •It is a thin layer of rock around the Earth •There are two types of crust: 1. Continental crust (where there is land) which is 30km thick 2. Oceanic crust (under the sea) which is 5km thick ...
Seismic evidence for convection-driven motion of the North
... driving forces of plate motion has been debated1,2. Resolution of this issue has been hindered by uncertainties in estimates of basal traction, which controls the coupling between lithospheric plates and underlying mantle convection2–4. Hotspot tracks preserve records of past plate motion5 and provi ...
... driving forces of plate motion has been debated1,2. Resolution of this issue has been hindered by uncertainties in estimates of basal traction, which controls the coupling between lithospheric plates and underlying mantle convection2–4. Hotspot tracks preserve records of past plate motion5 and provi ...
A. Compression - mccullochscience
... Directions: Match each term at the left with the correct definition or description at the right. Write your answer choice on the appropriate line. ____ 12.) Lithosphere ...
... Directions: Match each term at the left with the correct definition or description at the right. Write your answer choice on the appropriate line. ____ 12.) Lithosphere ...
Chapter 4 - TeacherWeb
... An oceanic plate sides down the lithosphere-asthenosphere boundary occurs where oceanic lithosphere is higher than continental lithosphere ...
... An oceanic plate sides down the lithosphere-asthenosphere boundary occurs where oceanic lithosphere is higher than continental lithosphere ...
The Structure of the Earth and Plate Tectonics
... • Oceanic lithosphere subducts underneath the continental lithosphere • Oceanic lithosphere heats and dehydrates as it subsides • The melt rises forming volcanism • E.g. The Andes Mountains, Mt. Saint Helens ...
... • Oceanic lithosphere subducts underneath the continental lithosphere • Oceanic lithosphere heats and dehydrates as it subsides • The melt rises forming volcanism • E.g. The Andes Mountains, Mt. Saint Helens ...
Slide 1
... The plates are simply the top part of the mantle convection currents. The weakness of the asthenosphere allows the stiff lithosphere to slide across it. ...
... The plates are simply the top part of the mantle convection currents. The weakness of the asthenosphere allows the stiff lithosphere to slide across it. ...
Lithospheric
... crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you were able to go to the ce ...
... crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you were able to go to the ce ...
GEOMORPHOLOGY
... Continental crust 5 – 70km Magnesium Approximately 2800km Mainly solid rock, but may 1000°C become “plastic” in nature as rocks start to melt Approximately 2200km ...
... Continental crust 5 – 70km Magnesium Approximately 2800km Mainly solid rock, but may 1000°C become “plastic” in nature as rocks start to melt Approximately 2200km ...
Convection Currents Lab
... Convection currents in the mantle form and transfer heat as rock slowly rises toward the top of the mantle. The rock is still hard, but it flows very slowly like a fluid. As the rock rises, it cools and sinks back down into the mantle. As with all convection currents, convection in Earth’s mantle is ...
... Convection currents in the mantle form and transfer heat as rock slowly rises toward the top of the mantle. The rock is still hard, but it flows very slowly like a fluid. As the rock rises, it cools and sinks back down into the mantle. As with all convection currents, convection in Earth’s mantle is ...
volcanic activity at sedankinsky dol lava field, sredinny ridge during
... monogenetic vents. The recent volcanism is restricted to three main zones: the Eastern Volcanic Belt and South Kamchatka, the Central Kamchatka Depression, and the Sredinny Ridge. While the first two zones are relatively well investigated, few data is currently available on the Sredinny Ridge magmat ...
... monogenetic vents. The recent volcanism is restricted to three main zones: the Eastern Volcanic Belt and South Kamchatka, the Central Kamchatka Depression, and the Sredinny Ridge. While the first two zones are relatively well investigated, few data is currently available on the Sredinny Ridge magmat ...
Earth`s Structure Model Activity
... the upper Mantle that lies just under the crust. • It acts as a “liquid” cushion under the crust and allows the plates to move under the force of convection currents in the Earth’s interior. ...
... the upper Mantle that lies just under the crust. • It acts as a “liquid” cushion under the crust and allows the plates to move under the force of convection currents in the Earth’s interior. ...
as a PDF
... explains many geologic features, it is far from being complete. It took a long time to develop this theory because there were and continue to be more parts than previously thought. Scientists are still finding out new things about plate tectonics and the inner workings of the earth to explain why so ...
... explains many geologic features, it is far from being complete. It took a long time to develop this theory because there were and continue to be more parts than previously thought. Scientists are still finding out new things about plate tectonics and the inner workings of the earth to explain why so ...
The Earth`s structure
... collide, deep trenches in the ocean occur. As the plate descends it melts to generate magma. As this magma rises, it may erupt at Earth’s surface, forming a chain of volcanoes. Where continental plates collide, mountain ranges such as the Himalayas arise. Mountain chains are also formed where one of ...
... collide, deep trenches in the ocean occur. As the plate descends it melts to generate magma. As this magma rises, it may erupt at Earth’s surface, forming a chain of volcanoes. Where continental plates collide, mountain ranges such as the Himalayas arise. Mountain chains are also formed where one of ...
Unit 1 Plate Tectonics UNIT 2: LAYERS OF THE EARTH STUDY
... The oceanic crust is thinner but denser. A common rock type is oceanic crust is basalt. Oceanic crust is denser because it contains more iron. ...
... The oceanic crust is thinner but denser. A common rock type is oceanic crust is basalt. Oceanic crust is denser because it contains more iron. ...
Unit 5: Plate Tectonics Review Guide Things you need to know for
... What was his theory? What was his evidence (at least 3)? Why did no one believe him? Theory of Continental Drift and Pangaea What are layers of earth and what the Lithosphereic plates move on What are the two types of lithospheric plates? Explain the difference between each (at least 3 differences)? ...
... What was his theory? What was his evidence (at least 3)? Why did no one believe him? Theory of Continental Drift and Pangaea What are layers of earth and what the Lithosphereic plates move on What are the two types of lithospheric plates? Explain the difference between each (at least 3 differences)? ...
MS Word document, click here
... •Because each plate moves at a different direction and speed, the plates themselves are commonly geologically quiet, but regions where plate meets plate (boundaries) are areas of intense geologic activity. •The theory of plate tectonics thus provides explanations for nearly every facet of Earth geol ...
... •Because each plate moves at a different direction and speed, the plates themselves are commonly geologically quiet, but regions where plate meets plate (boundaries) are areas of intense geologic activity. •The theory of plate tectonics thus provides explanations for nearly every facet of Earth geol ...
Mantle plume
A mantle plume is a mechanism proposed in 1971 to explain volcanic regions of the earth that were not thought to be explicable by the then-new theory of plate tectonics. Some such volcanic regions lie far from tectonic plate boundaries, for example, Hawaii. Others represent unusually large-volume volcanism, whether on plate boundaries, e.g. Iceland, or basalt floods such as the Deccan or Siberian traps.A mantle plume is posited to exist where hot rock nucleates at the core-mantle boundary and rises through the Earth's mantle becoming a diapir in the Earth's crust. The currently active volcanic centers are known as ""hot spots"". In particular, the concept that mantle plumes are fixed relative to one another, and anchored at the core-mantle boundary, was thought to provide a natural explanation for the time-progressive chains of older volcanoes seen extending out from some such hot spots, such as the Hawaiian–Emperor seamount chain.The hypothesis of mantle plumes from depth is not universally accepted as explaining all such volcanism. It has required progressive hypothesis-elaboration leading to variant propositions such as mini-plumes and pulsing plumes. Another hypothesis for unusual volcanic regions is the ""Plate model"". This proposes shallower, passive leakage of magma from the mantle onto the Earth's surface where extension of the lithosphere permits it, attributing most volcanism to plate tectonic processes, with volcanoes far from plate boundaries resulting from intraplate extension.