8.9AB: Plate Tectonics
... volcanoes, mountains and ocean trenches can form. A divergent boundary occurs when two plates move away from one another creating rift valleys in continental material and ridges in ocean basins. A transform boundary occurs as two plates move past each other causing faulting and earthquake activity. ...
... volcanoes, mountains and ocean trenches can form. A divergent boundary occurs when two plates move away from one another creating rift valleys in continental material and ridges in ocean basins. A transform boundary occurs as two plates move past each other causing faulting and earthquake activity. ...
Endogenetic processes and landforms
... when the ground moves. Land is destroyed in many places and created in other places. When the land is shaped by endogenetic Forces we call this endogentic processes. There are 3 main endogenetic processes: folding, faulting and vulcanicity. They take place mainly along the plate boundaries, which ar ...
... when the ground moves. Land is destroyed in many places and created in other places. When the land is shaped by endogenetic Forces we call this endogentic processes. There are 3 main endogenetic processes: folding, faulting and vulcanicity. They take place mainly along the plate boundaries, which ar ...
ch03_sec1
... plates are blocks of lithosphere that consist of the crust and the rigid, outermost part of the mantle and glide across the underlying asthenosphere. -The continents are located on tectonic plates and move around with them. -The major tectonic plates include the Pacific, North America,South Amer ...
... plates are blocks of lithosphere that consist of the crust and the rigid, outermost part of the mantle and glide across the underlying asthenosphere. -The continents are located on tectonic plates and move around with them. -The major tectonic plates include the Pacific, North America,South Amer ...
Tectonic Impacts #2
... convection cells begin to rotate causing crust movement above in the lithosphere As the plates begin to subduct ridge pull and slab push are factors that contribute to the gravitational pull that drives the plates down into the mantle With mid-ocean ridges spreading the sea floor and pushing away fr ...
... convection cells begin to rotate causing crust movement above in the lithosphere As the plates begin to subduct ridge pull and slab push are factors that contribute to the gravitational pull that drives the plates down into the mantle With mid-ocean ridges spreading the sea floor and pushing away fr ...
GSL abstract, K. H. James
... the Lesser Antilles extends as far as Barbados, where produced oil correlates chemically with Venezuela’s Maracaibo crude. Good seismic correlation at Eocene and Cretaceous levels between these areas. In the Caribbean inherited zircons reported from Cuba, Margarita, Granada and Carriacou are interpr ...
... the Lesser Antilles extends as far as Barbados, where produced oil correlates chemically with Venezuela’s Maracaibo crude. Good seismic correlation at Eocene and Cretaceous levels between these areas. In the Caribbean inherited zircons reported from Cuba, Margarita, Granada and Carriacou are interpr ...
Astronomy Test - The Summer Science Safari Summer Camp
... 2. According to the big bang theory, the age of the universe is about: Age is 4.6 – 4.7 Billion Years ago 3. Astronomers often place telescopes on mountaintops because: Less atmosphere, thinner air, less moisture and light pollution. 4. Describe the two types of telescopes. Include a description of ...
... 2. According to the big bang theory, the age of the universe is about: Age is 4.6 – 4.7 Billion Years ago 3. Astronomers often place telescopes on mountaintops because: Less atmosphere, thinner air, less moisture and light pollution. 4. Describe the two types of telescopes. Include a description of ...
Annenberg Learner: Plate Tectonics Web Quest Name: Blk:
... 2) Please read information on PLATE TECTONICS A) Who was Alfred Wegener? B) His theory was based upon what 3 pieces of evidence? C) What were 3 pieces of information that were published in Wegener's book? 3) "Continents On the Move" ~ please use the CHART & BULLET 2 FACTS for each time period noted. ...
... 2) Please read information on PLATE TECTONICS A) Who was Alfred Wegener? B) His theory was based upon what 3 pieces of evidence? C) What were 3 pieces of information that were published in Wegener's book? 3) "Continents On the Move" ~ please use the CHART & BULLET 2 FACTS for each time period noted. ...
2. Plate tectonics
... Only Earth has dynamic and restless activities originated by energy from the hot, dense core à What dynamic aspects of the Earth are there? à What is the theory to explain Earth’s dynamic features? ...
... Only Earth has dynamic and restless activities originated by energy from the hot, dense core à What dynamic aspects of the Earth are there? à What is the theory to explain Earth’s dynamic features? ...
File - Physical Science
... 6. All of the following are evidence supporting the theory of plate tectonics except for _____. A) changes in the Moon's orbit due to shifting plates C) hot spots B) ocean floor drilling D) paleomagnetism 7. Cooler, older, oceanic lithosphere SINKS into the mantle at ________. A) subduction zones al ...
... 6. All of the following are evidence supporting the theory of plate tectonics except for _____. A) changes in the Moon's orbit due to shifting plates C) hot spots B) ocean floor drilling D) paleomagnetism 7. Cooler, older, oceanic lithosphere SINKS into the mantle at ________. A) subduction zones al ...
Chapter 2 - College Test bank - get test bank and solution manual
... 3. Why was the concept of seafloor spreading necessary for continental drift to be accepted? How could scientists ignore the overwhelming evidence that the continents could move over the face of the Earth? 4. Demonstrate the relationship between hot spots and surface volcanic chains with a piece of ...
... 3. Why was the concept of seafloor spreading necessary for continental drift to be accepted? How could scientists ignore the overwhelming evidence that the continents could move over the face of the Earth? 4. Demonstrate the relationship between hot spots and surface volcanic chains with a piece of ...
Earthquakes
... Earthquakes usually occur at faults that are along plate boundaries. The plates of the Earth push together, pull apart, or slide past one another. ...
... Earthquakes usually occur at faults that are along plate boundaries. The plates of the Earth push together, pull apart, or slide past one another. ...
Shane Turner
... arc basalts, where geological evidence is insufficient, due to the factors of deformation, erosion, metamorphism etc. These plots can be modeled in terms of vectors, which represent different petrogenetic processes. A convenient way of comparing analyses for these various magma types is to plot the ...
... arc basalts, where geological evidence is insufficient, due to the factors of deformation, erosion, metamorphism etc. These plots can be modeled in terms of vectors, which represent different petrogenetic processes. A convenient way of comparing analyses for these various magma types is to plot the ...
Alfred Lothar Wegener, 1880-1930
... global extent have occurred during the past century: in 1901, 1913, 1925, 1969, 1978 and 1992. The last three jerks can be seen clearly as abrupt changes in the slope of the annual change in H at Resolute Bay. The 1969 jerk corresponds to the start of the increase in the speed of the NMP and the two ...
... global extent have occurred during the past century: in 1901, 1913, 1925, 1969, 1978 and 1992. The last three jerks can be seen clearly as abrupt changes in the slope of the annual change in H at Resolute Bay. The 1969 jerk corresponds to the start of the increase in the speed of the NMP and the two ...
Chapter 2, Section 5
... subduction zone. Batholiths are large masses of igneous rock formed when magma intrudes and solidifies. The growth of a continent along its edge in these ways is called continental accretion. This has been going on through geologic time. The continents have been growing larger and larger. ...
... subduction zone. Batholiths are large masses of igneous rock formed when magma intrudes and solidifies. The growth of a continent along its edge in these ways is called continental accretion. This has been going on through geologic time. The continents have been growing larger and larger. ...
Plate motions in the Alpine region and their correlation to the
... counterclockwise rotation of the minor plates is an effect of the persistent leftlateral motion between Europe and Africa. Fig. 4 (Upper Cretaceous): The couterclockwise rotation of the Adriatic plate leads to oblique collision with the Brianconian continental mass to the north. The Adriatic plate d ...
... counterclockwise rotation of the minor plates is an effect of the persistent leftlateral motion between Europe and Africa. Fig. 4 (Upper Cretaceous): The couterclockwise rotation of the Adriatic plate leads to oblique collision with the Brianconian continental mass to the north. The Adriatic plate d ...
Under Your Feet - BirdBrain Science
... atmosphere, or the air we breathe. Yes, it really is that thin. Unwrap it so you are just holding the Earth itself. It's a swirl of brown and blue. The harder shell of the chocolate is the Earth's crust. That's the solid stuff we stand on. What lies underneath there? There's only one way to find out ...
... atmosphere, or the air we breathe. Yes, it really is that thin. Unwrap it so you are just holding the Earth itself. It's a swirl of brown and blue. The harder shell of the chocolate is the Earth's crust. That's the solid stuff we stand on. What lies underneath there? There's only one way to find out ...
Tectonic Impacts #3
... Convergence (Destructive boundary) – Collision of two plate boundaries usually resulting in subduction. The overriding plate usually becomes folded and volcanic to produce mountain chains Divergence (Constructive boundary, Extensional boundary – Where two plates separate. The spreading centre is whe ...
... Convergence (Destructive boundary) – Collision of two plate boundaries usually resulting in subduction. The overriding plate usually becomes folded and volcanic to produce mountain chains Divergence (Constructive boundary, Extensional boundary – Where two plates separate. The spreading centre is whe ...
Powerpoint
... Only the western portion of the high gPE area is extending, which argues that the deforming area is relatively weak. This is consistent with its history of recent, intense magmatism. Interior deformation is mostly extension, whereas near the transform plate margin deformation is dominated by rightla ...
... Only the western portion of the high gPE area is extending, which argues that the deforming area is relatively weak. This is consistent with its history of recent, intense magmatism. Interior deformation is mostly extension, whereas near the transform plate margin deformation is dominated by rightla ...
What are the layers of the Earth? What are the characteristics of
... vs. Oceanic Crust • Makes up the ocean floor. • Not as thick as continental crust. • More dense than continental crust. • Composition similar to Basalt. ...
... vs. Oceanic Crust • Makes up the ocean floor. • Not as thick as continental crust. • More dense than continental crust. • Composition similar to Basalt. ...
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.