Forces in the Crust Day1
... Volume: the amount of space the rock takes up. The stress transfers energy to the rock causing the rock to bend/stretch. But beyond a certain limit, the rock will break. ...
... Volume: the amount of space the rock takes up. The stress transfers energy to the rock causing the rock to bend/stretch. But beyond a certain limit, the rock will break. ...
DESTRUCTIVE CONVERGENT PLATE MARGINS: SUBDUCTION
... What is the relative sense of movement between subducting and overriding plates? Subducting plate moves, over-riding plate stationary ...
... What is the relative sense of movement between subducting and overriding plates? Subducting plate moves, over-riding plate stationary ...
File
... In the illustration to the left, indicate the location AND name of the feature created when two plates are forced apart by the upwelling of Magma. ...
... In the illustration to the left, indicate the location AND name of the feature created when two plates are forced apart by the upwelling of Magma. ...
Earth`s Layers
... • This crust is not a solid shell. It is broken up into huge, thick plates that drift on top of the soft, underlying mantle. • It is made of oxygen, silicon, aluminum. ...
... • This crust is not a solid shell. It is broken up into huge, thick plates that drift on top of the soft, underlying mantle. • It is made of oxygen, silicon, aluminum. ...
Evidence for Continental Drift
... Rock is cooler as we move away from spreading zones Volcanos are associated with plate boundaries Earthquakes are also at plate boundaries island arcs, trenches, and mountain ranges…. But what about the Hawaiian Islands? ...
... Rock is cooler as we move away from spreading zones Volcanos are associated with plate boundaries Earthquakes are also at plate boundaries island arcs, trenches, and mountain ranges…. But what about the Hawaiian Islands? ...
Organized Opposition to Plate Tectonics: The New Concepts in
... and modified. These fractures have had a significant influence on tectonic events up to the present. Deep earthquakes have been shown to be associated with surface and crustal structures that continue deep into the mantle. Plate tectonicists tend to ignore the pattern of orthogonal lineaments in the ...
... and modified. These fractures have had a significant influence on tectonic events up to the present. Deep earthquakes have been shown to be associated with surface and crustal structures that continue deep into the mantle. Plate tectonicists tend to ignore the pattern of orthogonal lineaments in the ...
Plate Tectonics
... 4. Explain the contributions of Alfred Wegener and why scientists initially rejected his theory. (DOK1) 5. Describe the three plate boundaries and where they occur. (DOK1) 6. Explain how hot spots are used to track plate movement. (DOK2) 7. Describe what happens when plates move apart (rift valleys ...
... 4. Explain the contributions of Alfred Wegener and why scientists initially rejected his theory. (DOK1) 5. Describe the three plate boundaries and where they occur. (DOK1) 6. Explain how hot spots are used to track plate movement. (DOK2) 7. Describe what happens when plates move apart (rift valleys ...
Earthquake Notes
... Intraplate quakes occur far from plate edges and happen when stress builds up and the Earth's crust is stretched or squeezed together until it rips. ...
... Intraplate quakes occur far from plate edges and happen when stress builds up and the Earth's crust is stretched or squeezed together until it rips. ...
Earth`s Interior
... Scientists can not get a clear picture of the center of the earth due to the extreme conditions, both heat and pressure, below the crust of the earth. ...
... Scientists can not get a clear picture of the center of the earth due to the extreme conditions, both heat and pressure, below the crust of the earth. ...
pdf 4.5Mb
... Seismic reflection – return of seismic energy to surface – rock layers of different density » boundary reflects energy like a mirror » time since earthquake gives depth to boundary ...
... Seismic reflection – return of seismic energy to surface – rock layers of different density » boundary reflects energy like a mirror » time since earthquake gives depth to boundary ...
The Outer Core - Geography1000
... The Inner and Outer Core • The Outer Core Molten and extending to a depth of about 3100 miles • The Inner Core • Solid and very dense mass having a radius of 900 miles • Both the inner and outer core are made of iron/nickel or iron/silicate. • Makes up 15% of the Earth’s volume and 32% of its mass ...
... The Inner and Outer Core • The Outer Core Molten and extending to a depth of about 3100 miles • The Inner Core • Solid and very dense mass having a radius of 900 miles • Both the inner and outer core are made of iron/nickel or iron/silicate. • Makes up 15% of the Earth’s volume and 32% of its mass ...
Plate Boundary: Oceanic-Continental
... Volcanoes and earthquakes are both directly connected to plate tectonics. Many earthquakes and volcanoes are located on or near plate boundaries. To expand on, earthquakes can occur on three different types: convergent, divergent, and transform plate boundaries. The earth’s crust and even the insid ...
... Volcanoes and earthquakes are both directly connected to plate tectonics. Many earthquakes and volcanoes are located on or near plate boundaries. To expand on, earthquakes can occur on three different types: convergent, divergent, and transform plate boundaries. The earth’s crust and even the insid ...
Earth`s Layers Sort
... B. Think of any other object that is already in layers, like an egg, or one that you could put together. As you think, remember that the innermost layer is surrounded by the middle and then the outer layer. ...
... B. Think of any other object that is already in layers, like an egg, or one that you could put together. As you think, remember that the innermost layer is surrounded by the middle and then the outer layer. ...
Hot spots can be used to track plate movements.
... above, is a good example of a continental rift valley. It is getting wider as the African Plate splits apart. This huge valley is thousands of kilometers long and as much as 1800 meters (5900 ft) deep. ...
... above, is a good example of a continental rift valley. It is getting wider as the African Plate splits apart. This huge valley is thousands of kilometers long and as much as 1800 meters (5900 ft) deep. ...
Today`s Agenda Today`s Agenda Syllabus Syllabus Syllabus
... More History of the Theory of Plate Tectonics 1928 - British geologist Arthur Holmes proposed that convection currents in the mantle could be moving things ...
... More History of the Theory of Plate Tectonics 1928 - British geologist Arthur Holmes proposed that convection currents in the mantle could be moving things ...
Document
... Evidence of Plate Tectonics • Dating of rocks – Oceanic rocks are much younger (200 million versus 4 billion years for continental – Younger to older parallel bands ...
... Evidence of Plate Tectonics • Dating of rocks – Oceanic rocks are much younger (200 million versus 4 billion years for continental – Younger to older parallel bands ...
Ch. 10 Section 3 Power Point
... – EX: Geologic evidence shows that ice once covered most of Earth’s continental surfaces. As continents began to drift around the globe, however, global temperatures changed and much of the ice sheet melted. 2. As continents rift or as mountains form, populations of organisms are separated. When pop ...
... – EX: Geologic evidence shows that ice once covered most of Earth’s continental surfaces. As continents began to drift around the globe, however, global temperatures changed and much of the ice sheet melted. 2. As continents rift or as mountains form, populations of organisms are separated. When pop ...
Geology (Chernicoff) - GEO
... Chapter 13 Continental Tectonics and the Formation of the Earth's Continents 1) In geology, the term "stress" refers to: A) stretching of a rock unit. B) compression of a rock unit. C) any deformation of a rock unit. D) forces that might cause deformation of a rock unit. 2) Rocks in which elastic de ...
... Chapter 13 Continental Tectonics and the Formation of the Earth's Continents 1) In geology, the term "stress" refers to: A) stretching of a rock unit. B) compression of a rock unit. C) any deformation of a rock unit. D) forces that might cause deformation of a rock unit. 2) Rocks in which elastic de ...
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.