Planetary Interiors and Surfaces Part 1
... At the inner core boundary actual temperature and melting temperature coincide. The liquid outer core is assumed to be well mixed by convection. Here the temperature should follow an adiabatic gradient [dT/dp]adiab = αT/(ρcp). The melting point gradient is steeper than the adiabatic gradient. For th ...
... At the inner core boundary actual temperature and melting temperature coincide. The liquid outer core is assumed to be well mixed by convection. Here the temperature should follow an adiabatic gradient [dT/dp]adiab = αT/(ρcp). The melting point gradient is steeper than the adiabatic gradient. For th ...
Kein Folientitel
... At the inner core boundary actual temperature and melting temperature coincide. The liquid outer core is assumed to be well mixed by convection. Here the temperature should follow an adiabatic gradient [dT/dp]adiab = αT/(ρcp). The melting point gradient is steeper than the adiabatic gradient. For th ...
... At the inner core boundary actual temperature and melting temperature coincide. The liquid outer core is assumed to be well mixed by convection. Here the temperature should follow an adiabatic gradient [dT/dp]adiab = αT/(ρcp). The melting point gradient is steeper than the adiabatic gradient. For th ...
Capitanio et al.
... lithosphere is pulled into the mantle, whereas ridge push determines the rate at which the plate is fed to the trench. When slab pull is lowered to values below those of ridge push, as a result of continent entrainment in the mantle, subduction is unable to consume the incoming plate, resulting in t ...
... lithosphere is pulled into the mantle, whereas ridge push determines the rate at which the plate is fed to the trench. When slab pull is lowered to values below those of ridge push, as a result of continent entrainment in the mantle, subduction is unable to consume the incoming plate, resulting in t ...
Notes on Earthquakes and Earth`s interior - earth
... 1. The Crust- is a solid layer, which consists of continental and oceanic crust. This layer is relatively thin compared to the other layers. a) Continental crust is made of Granite, which is a low-density igneous rock and has an average thickness of 20-40 km. b) Oceanic crust is made of Basalt, whic ...
... 1. The Crust- is a solid layer, which consists of continental and oceanic crust. This layer is relatively thin compared to the other layers. a) Continental crust is made of Granite, which is a low-density igneous rock and has an average thickness of 20-40 km. b) Oceanic crust is made of Basalt, whic ...
DAY 2 Key VocabularyDEFINE WORDSIN NOTEBOOKSWATCH
... Divergent boundaries form where two plates are moving away form one another. As they separate, magma rise between them, filling the gap with new rock. Volcanic mountains occur along divergent plate boundaries. Convergent plate boundaries form where plates are moving toward each other. At converge ...
... Divergent boundaries form where two plates are moving away form one another. As they separate, magma rise between them, filling the gap with new rock. Volcanic mountains occur along divergent plate boundaries. Convergent plate boundaries form where plates are moving toward each other. At converge ...
MS-SCI-ES-Unit 2 -- Interdisciplinary Exploration
... the Vesuvius eruption was like. Choose an interesting event that you've witnessed. Write an eyewitness account of it. Provide readers with key facts, such as the time and place of the event, along with interesting and vivid details. ...
... the Vesuvius eruption was like. Choose an interesting event that you've witnessed. Write an eyewitness account of it. Provide readers with key facts, such as the time and place of the event, along with interesting and vivid details. ...
Geology Content from Frameworks The content listed below comes
... When continental crust meets continental crust at a convergent boundary, a collision occurs, resulting in folds, faults, and high mountains. Transform boundaries are where plates slide past each other. They connect other plate boundaries and are characterized by earthquakes. Moving plates caus ...
... When continental crust meets continental crust at a convergent boundary, a collision occurs, resulting in folds, faults, and high mountains. Transform boundaries are where plates slide past each other. They connect other plate boundaries and are characterized by earthquakes. Moving plates caus ...
Physical Q2 11-12 2016 questions - GEO
... 23. Which of the following statements most accurately describes the composition of continental crust? A) Continental crust is composed of rocks very similar to basalt B) Continental crust is made up entirely of mafic rocks C) Continental crust is made up entirely of felsic rocks D) Continental crust ...
... 23. Which of the following statements most accurately describes the composition of continental crust? A) Continental crust is composed of rocks very similar to basalt B) Continental crust is made up entirely of mafic rocks C) Continental crust is made up entirely of felsic rocks D) Continental crust ...
Document
... Strike-Slip Fault These faults form when opposing forces cause rock to break and move horizontally. ...
... Strike-Slip Fault These faults form when opposing forces cause rock to break and move horizontally. ...
replace this sentence with the title of your abstract
... The early differentiation of the Moon generated a crust strongly enriched in alumina as well as trace elements that are incompatible in basaltic systems. Knowledge of rocks and soils from the lunar surface, coupled with global compositional remote sensing, allow us to infer the composition of the cr ...
... The early differentiation of the Moon generated a crust strongly enriched in alumina as well as trace elements that are incompatible in basaltic systems. Knowledge of rocks and soils from the lunar surface, coupled with global compositional remote sensing, allow us to infer the composition of the cr ...
GEOL 101 Lab 2: Plate Tectonics
... offsets in the magnetic anomaly patterns? 4. The theory of seafloor spreading, which is part of plate tectonics theory, predicts that plates spread away from divergent plate boundaries at close to equal rates on either side of the ridge. If that is true for the Juan de Fuca Ridge, then the two lines ...
... offsets in the magnetic anomaly patterns? 4. The theory of seafloor spreading, which is part of plate tectonics theory, predicts that plates spread away from divergent plate boundaries at close to equal rates on either side of the ridge. If that is true for the Juan de Fuca Ridge, then the two lines ...
NORWOOD SCIENCE CENTER
... The movement of crustal plates provides the great forces that strain the Earth's crust causing earthquakes to occur. Probably no other natural event has been the cause of more deaths and destruction than earthquakes. Modern technology has given the scientists tools to study these events in detail. T ...
... The movement of crustal plates provides the great forces that strain the Earth's crust causing earthquakes to occur. Probably no other natural event has been the cause of more deaths and destruction than earthquakes. Modern technology has given the scientists tools to study these events in detail. T ...
Subducting basaltic crust as a water transporter into the Earth`s
... 1600°C which corresponds to conditions of the deep upper mantle and the mantle transition zone. In this system, two stable phases were identified whose composition is expressed by (FeH)1-xTixO2, and one of them with α-PbO2 type structure (orthorhombic, Pbcn) is stable in the system basalt + H2O at p ...
... 1600°C which corresponds to conditions of the deep upper mantle and the mantle transition zone. In this system, two stable phases were identified whose composition is expressed by (FeH)1-xTixO2, and one of them with α-PbO2 type structure (orthorhombic, Pbcn) is stable in the system basalt + H2O at p ...
Magnitude 7.1 FIJI
... as they penetrate deeper into Earth’s mantle. As the plates warm, they become viscoelastic and are no longer brittle enough to produce earthquakes. So with greater depth, a smaller portion of a subducting plate is cold enough to be brittle and capable of producing deep earthquakes. This smaller volu ...
... as they penetrate deeper into Earth’s mantle. As the plates warm, they become viscoelastic and are no longer brittle enough to produce earthquakes. So with greater depth, a smaller portion of a subducting plate is cold enough to be brittle and capable of producing deep earthquakes. This smaller volu ...
Hadean plate tectonics
... 2) Post-Hadean rock record 3) Super-ancient zircon, e.g. Jack Hills (the only direct sample) ...
... 2) Post-Hadean rock record 3) Super-ancient zircon, e.g. Jack Hills (the only direct sample) ...
Semester Exam I Review
... 29. Action: the way somebody or something moves or works, or the movement itself 30. Reaction: A change or transformation in which a substance decomposes, combines with other substances, or interchanges constituents with other substances 31. Plate Tectonic Theory: Plate tectonics is the scientific t ...
... 29. Action: the way somebody or something moves or works, or the movement itself 30. Reaction: A change or transformation in which a substance decomposes, combines with other substances, or interchanges constituents with other substances 31. Plate Tectonic Theory: Plate tectonics is the scientific t ...
August 2008
... sequence of events. Sandstone (SS), shale (S) and then conglomerate (C) are deposited horizontally. Compressional forces cause folding of these layers to create a syncline and an anticline. Following folding, there is a period of erosion (Event E). Later, deposition places a thick layer of limestone ...
... sequence of events. Sandstone (SS), shale (S) and then conglomerate (C) are deposited horizontally. Compressional forces cause folding of these layers to create a syncline and an anticline. Following folding, there is a period of erosion (Event E). Later, deposition places a thick layer of limestone ...
Chapter 2, Section 3
... are not just passive riders on the convection cells. Instead, they think the plates themselves play a major part in driving the convection. Do you remember from Section 1 that the mid-ocean ridges are broad rises in the ocean floor? Mid-ocean ridges slope gradually down to the deep ocean nearer to t ...
... are not just passive riders on the convection cells. Instead, they think the plates themselves play a major part in driving the convection. Do you remember from Section 1 that the mid-ocean ridges are broad rises in the ocean floor? Mid-ocean ridges slope gradually down to the deep ocean nearer to t ...
EQ AND INTERIOR
... (an intraplate earthquake). If the quake was along a plate boundary, name the type of plate boundary (convergent, divergent or transform) that the earthquake occurred in. EQ#1 EQ #2 EQ #3 16. What is the boundary between the crust and the mantle called? What happens to the velocity of seismic waves ...
... (an intraplate earthquake). If the quake was along a plate boundary, name the type of plate boundary (convergent, divergent or transform) that the earthquake occurred in. EQ#1 EQ #2 EQ #3 16. What is the boundary between the crust and the mantle called? What happens to the velocity of seismic waves ...
Isotope Geochemistry of the Continents
... Likely a result of preferential transport of soluble U6+ into magma genesis zone from (somewhat oxidized) subducting slab. ...
... Likely a result of preferential transport of soluble U6+ into magma genesis zone from (somewhat oxidized) subducting slab. ...
Day1-AM2-Earths Interior (Goswami)
... Earth’s internal structure • Continental crust • crust composed of felsic granitic rocks , rich in silica and aluminum (also called SiAl) • Upper crust is more granitic • Lower crust is more akin to basalt • Average density is about 2.7 g/cm3 • Up to 4 billion years old ...
... Earth’s internal structure • Continental crust • crust composed of felsic granitic rocks , rich in silica and aluminum (also called SiAl) • Upper crust is more granitic • Lower crust is more akin to basalt • Average density is about 2.7 g/cm3 • Up to 4 billion years old ...
FREE Sample Here
... 22. The greatest earthquakes in the world occur _____________. A. where plates collide with each other B. where plates separate from one another C. where plates slide past each other D. in the interiors of individual plates ...
... 22. The greatest earthquakes in the world occur _____________. A. where plates collide with each other B. where plates separate from one another C. where plates slide past each other D. in the interiors of individual plates ...
How has the Earth*s internal temperature evolved over 4.5 Ga?
... • Models of continental growth are widely disparate due to: - Differing views of continental age distribution as growth or preservation record - Differing views of origin and evolution of plate tectonics - Changing estimates of relative arc magmatism vs. subduction erosion rates - Differing lessons ...
... • Models of continental growth are widely disparate due to: - Differing views of continental age distribution as growth or preservation record - Differing views of origin and evolution of plate tectonics - Changing estimates of relative arc magmatism vs. subduction erosion rates - Differing lessons ...
Historical Geology
... – contains Si, Al • oceanic (5-10 km thick) – density 3.0 g/cm3 – composed of basalt ...
... – contains Si, Al • oceanic (5-10 km thick) – density 3.0 g/cm3 – composed of basalt ...
Crustal structure of the West Antarctic rift system and Marie Byrd
... *Corresponding author ([email protected]) ...
... *Corresponding author ([email protected]) ...
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.