Chapter 8 Test Review Notes
... The lithospheric plates of the Earth are rigid and move about on the asthenosphere. The shapes of South America and Africa’s coastlines led to early suggestions they had been joined at one time. Strong evidence that two continents were once joined might include similarities in similar coastal rock ...
... The lithospheric plates of the Earth are rigid and move about on the asthenosphere. The shapes of South America and Africa’s coastlines led to early suggestions they had been joined at one time. Strong evidence that two continents were once joined might include similarities in similar coastal rock ...
Testing Plate Tectonics & Mechanisms of Plate Motion
... the basic driving force for plate tectonics Convective Flow – the motion of matter resulting from convection The slow movements of the plates and mantle are driven by the unequal distribution of Earth’s heat from the radioactive decay elements ...
... the basic driving force for plate tectonics Convective Flow – the motion of matter resulting from convection The slow movements of the plates and mantle are driven by the unequal distribution of Earth’s heat from the radioactive decay elements ...
Unit 3 Review Questions
... 8. What type of landforms might result in this type of tectonic plate movement? ...
... 8. What type of landforms might result in this type of tectonic plate movement? ...
Chapter 4
... • Originate at great depth, perhaps at the mantle-core boundary • Since plate moves, but plume does not, it allows us to measure rate of plate motion. ...
... • Originate at great depth, perhaps at the mantle-core boundary • Since plate moves, but plume does not, it allows us to measure rate of plate motion. ...
PT Test review
... 18) What are the lines of evidence that Pangaea once existed? A. _____________________________________________________ B. ______________________________________________________ C. ______________________________________________________ 19) Why was Alfred Wegener’s idea of continental drift not taken ...
... 18) What are the lines of evidence that Pangaea once existed? A. _____________________________________________________ B. ______________________________________________________ C. ______________________________________________________ 19) Why was Alfred Wegener’s idea of continental drift not taken ...
Plate Tectonics
... • The theory of plate tectonics states that the Earth’s lithosphere is divided into pieces called tectonic plates that move around on top of the ...
... • The theory of plate tectonics states that the Earth’s lithosphere is divided into pieces called tectonic plates that move around on top of the ...
PLATE TECTONICS
... •Two oceanic slabs converge and one descends beneath the other •Often forms volcanoes on the ocean floor ...
... •Two oceanic slabs converge and one descends beneath the other •Often forms volcanoes on the ocean floor ...
Earth has several layers
... does not form a continuous shell It is broken into many large and small slabs of rock) ► Scientists ...
... does not form a continuous shell It is broken into many large and small slabs of rock) ► Scientists ...
Earth has several layers
... does not form a continuous shell It is broken into many large and small slabs of rock) ► Scientists ...
... does not form a continuous shell It is broken into many large and small slabs of rock) ► Scientists ...
Appalachian Mountain Building
... Orogeny is the process that for all mountain ranges. Orogeny results in broad, linear regions of deformation known as orogenic belts. Most orogenic belts are associated with plate boundaries. The greatest variety and the tallest of these belts Are found at convergent Boundaries. ...
... Orogeny is the process that for all mountain ranges. Orogeny results in broad, linear regions of deformation known as orogenic belts. Most orogenic belts are associated with plate boundaries. The greatest variety and the tallest of these belts Are found at convergent Boundaries. ...
inside earth ppt
... is like if we can’t travel through it? • Scientist know this by studying seismic waves/data from earthquakes ...
... is like if we can’t travel through it? • Scientist know this by studying seismic waves/data from earthquakes ...
jeopardyplatetech Answer Key
... When it comes to sea floor spreading, where would you find the youngest rocks? ...
... When it comes to sea floor spreading, where would you find the youngest rocks? ...
Plate Tectonics Lecture Notes Page
... these tectonic plates. The above diagram shows the epicenters for recent large earthquakes throughout the world. Notice how the epicenters tend to fall in long belts, with few outside these ...
... these tectonic plates. The above diagram shows the epicenters for recent large earthquakes throughout the world. Notice how the epicenters tend to fall in long belts, with few outside these ...
plate tectonic review
... I’m an area of volcanic activity that often forms island chains and develops over rising plumes of magma A 100 ...
... I’m an area of volcanic activity that often forms island chains and develops over rising plumes of magma A 100 ...
Study Guide Questions – Earth Structure and Plate Tectonics What
... ocean basins formed, evolved, and closed. This is summarized toward the end of Chapter 3. Review, and understand, Figure 3.37, which shows the stages in evolution of an ocean basin. Apply these processes to the breakup of Pangaea, which began about 250 million years ago, to produce the present confi ...
... ocean basins formed, evolved, and closed. This is summarized toward the end of Chapter 3. Review, and understand, Figure 3.37, which shows the stages in evolution of an ocean basin. Apply these processes to the breakup of Pangaea, which began about 250 million years ago, to produce the present confi ...
Earthquakes, Volcanoes & The Ring of Fire
... c. drilling samples from the ocean floor found that samples of rocks nearest the mid-ocean ridge were younger than the samples of rock that were farther away ...
... c. drilling samples from the ocean floor found that samples of rocks nearest the mid-ocean ridge were younger than the samples of rock that were farther away ...
Earth`s Composition Tectonic Plates Virginia Geology Rock Cycle
... - ocean (basalt) crust is relatively thin, young, and dense - continental crust is relatively thick, old, and less dense ⋅ Earth’s crust major elements: oxygen, silicon, aluminum, and iron ...
... - ocean (basalt) crust is relatively thin, young, and dense - continental crust is relatively thick, old, and less dense ⋅ Earth’s crust major elements: oxygen, silicon, aluminum, and iron ...
Handout 1 (2-3) pink Chapter 10 Section 2 Directed Reading Pages
... 11. A narrow area that forms where the plates at a divergent boundary separate is called a _______________. 12. When oceanic lithosphere collides with continental lithosphere, the oceanic lithosphere is more dense than the continental lithosphere, so it sinks, or ____________________________________ ...
... 11. A narrow area that forms where the plates at a divergent boundary separate is called a _______________. 12. When oceanic lithosphere collides with continental lithosphere, the oceanic lithosphere is more dense than the continental lithosphere, so it sinks, or ____________________________________ ...
Dangerous Earth
... the mantle. Underneath the lithosphere is a thin zone within the mantle called the asthenosphere. Because of radioactive decay deep in the Earth the asthenosphere is so hot that there are films of molten material between the crystals. This means the asthenosphere is solid but it can also flow. Slow ...
... the mantle. Underneath the lithosphere is a thin zone within the mantle called the asthenosphere. Because of radioactive decay deep in the Earth the asthenosphere is so hot that there are films of molten material between the crystals. This means the asthenosphere is solid but it can also flow. Slow ...
Ideas and Evidence in Science
... the mantle. Underneath the lithosphere is a thin zone within the mantle called the asthenosphere. Because of radioactive decay deep in the Earth the asthenosphere is so hot that there are films of molten material between the crystals. This means the asthenosphere is solid but it can also flow. Slow ...
... the mantle. Underneath the lithosphere is a thin zone within the mantle called the asthenosphere. Because of radioactive decay deep in the Earth the asthenosphere is so hot that there are films of molten material between the crystals. This means the asthenosphere is solid but it can also flow. Slow ...
The Earth The Layers of the Earth • The Earth is divided into ______
... Remember, there are two types of crust: ________________ crust, which extends all over the earth and is broken into the 12 large and many smaller plates; and, _______________________ crust, which “rides around” on top of the oceanic crustal plates ...
... Remember, there are two types of crust: ________________ crust, which extends all over the earth and is broken into the 12 large and many smaller plates; and, _______________________ crust, which “rides around” on top of the oceanic crustal plates ...
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.