Handout
... Pressure and temperature increase with depth in the Earth. At the center of the Earth, pressure is 3.6 million times greater than at the surface and temperatures can reach 4,300oC, nearly as hot as the Sun’s surface. The rate of temperature change with depth is called the geothermal gradient. ...
... Pressure and temperature increase with depth in the Earth. At the center of the Earth, pressure is 3.6 million times greater than at the surface and temperatures can reach 4,300oC, nearly as hot as the Sun’s surface. The rate of temperature change with depth is called the geothermal gradient. ...
Chapter 1: Meet Planet Earth
... Tectonics is the study of the movement and deformation of the lithosphere. When magma rises from deep in the mantle, it forms new oceanic crust at midocean ridges. The lifetime of oceanic crust is shorter than the lifetime of continental crust. The most ancient oceanic crust of the ocean bas ...
... Tectonics is the study of the movement and deformation of the lithosphere. When magma rises from deep in the mantle, it forms new oceanic crust at midocean ridges. The lifetime of oceanic crust is shorter than the lifetime of continental crust. The most ancient oceanic crust of the ocean bas ...
Due: Monday, January 28, 2013 Quarter 2.5 Assessment Study Guide
... 6. What creates convection currents in the earth? Differences in ___________________ and _________________ ...
... 6. What creates convection currents in the earth? Differences in ___________________ and _________________ ...
PLATE 1ECTONICS
... and density within a fluid. 9. A measure of how much mass there is in a volume of a substance is ...
... and density within a fluid. 9. A measure of how much mass there is in a volume of a substance is ...
Thinking Point - Dynamic Earth
... Ask your pupils which layer was made first, to highlight that in typical rock sequences, the oldest rocks are at the bottom. Use the spatula/card to squash the layers sideways and observe the faults (and sometimes folds) which appear. Point out the increase in height of the layers and the fact that ...
... Ask your pupils which layer was made first, to highlight that in typical rock sequences, the oldest rocks are at the bottom. Use the spatula/card to squash the layers sideways and observe the faults (and sometimes folds) which appear. Point out the increase in height of the layers and the fact that ...
Ch 3 Homework Answers
... approximately how long it took, and how the field behaved while it was reversing (for example, whether or not the field became very weak for a while). 43. As magma (molten rock) flows out along a divergent boundary, such as the Mid-Atlantic Ridge, the new rock cools and becomes magnetized in the dir ...
... approximately how long it took, and how the field behaved while it was reversing (for example, whether or not the field became very weak for a while). 43. As magma (molten rock) flows out along a divergent boundary, such as the Mid-Atlantic Ridge, the new rock cools and becomes magnetized in the dir ...
Studyguide
... o The edge of the denser plate is forced into the __________________, while the less dense plate is pushed up o If the plates are the _______________ density, both plates are pushed up Earthquakes An __________________________ is movement of the ground caused by a sudden release of energy in the E ...
... o The edge of the denser plate is forced into the __________________, while the less dense plate is pushed up o If the plates are the _______________ density, both plates are pushed up Earthquakes An __________________________ is movement of the ground caused by a sudden release of energy in the E ...
GEOL 101--Topics for First Exam
... GEOL 101--Topics for First Exam The following list includes topics discussed either in class or in the text (chapters 1, 18, 19, 20). Concentrate your studies on these items. Try to understand each, not just memorize terms. If you can describe and explain these concepts in your own words, not mine n ...
... GEOL 101--Topics for First Exam The following list includes topics discussed either in class or in the text (chapters 1, 18, 19, 20). Concentrate your studies on these items. Try to understand each, not just memorize terms. If you can describe and explain these concepts in your own words, not mine n ...
Folding and Faulting| sample answer
... Q: ‘Examine the impact of folding and faulting on the landscape. In your answer refer to one landform in each case’ (2007 Q3 B.) The Earth’s crust is broken into around 16 major slabs called plates-these plates float on the mantle, constantly moving due to convection currents. They can pull apart, o ...
... Q: ‘Examine the impact of folding and faulting on the landscape. In your answer refer to one landform in each case’ (2007 Q3 B.) The Earth’s crust is broken into around 16 major slabs called plates-these plates float on the mantle, constantly moving due to convection currents. They can pull apart, o ...
Slide 1
... Key parts of Plate Tectonics Lithosphere or rigid lid that holds both crust and cold mantle together as one solid block (0-100km) asthenoshphere or plastic,ductile, layer also within the mantle (100km depth to 300 km depth??) ...
... Key parts of Plate Tectonics Lithosphere or rigid lid that holds both crust and cold mantle together as one solid block (0-100km) asthenoshphere or plastic,ductile, layer also within the mantle (100km depth to 300 km depth??) ...
Veronica Flores – Laverty November 24, 2014 Layers of Earth There
... use information gathered from seismographs after an earthquake to learn about Earths layers by studying the seismic waves. These waves travel differently through solids, liquids, and gases. The crust is Earth’s outermost layer. The crust is what people walk on which is grass, dirt, sand, and plains. ...
... use information gathered from seismographs after an earthquake to learn about Earths layers by studying the seismic waves. These waves travel differently through solids, liquids, and gases. The crust is Earth’s outermost layer. The crust is what people walk on which is grass, dirt, sand, and plains. ...
Ch 5 S 1 Earth`s Interior
... c. Pressure: results from a force pressing on an area i. Inside Earth, pressure increases as you go deeper because of the weight of the rock above ...
... c. Pressure: results from a force pressing on an area i. Inside Earth, pressure increases as you go deeper because of the weight of the rock above ...
Patterns of Crustal Activity
... The third type of earthquake is related to the collision of oceanic and continental plates. One plate is thrust or subducted under the other plate so that a deep ocean trench is produced. In the Philippines, ocean trenches are associated with curved volcanic island arcs on the landward plate, for ex ...
... The third type of earthquake is related to the collision of oceanic and continental plates. One plate is thrust or subducted under the other plate so that a deep ocean trench is produced. In the Philippines, ocean trenches are associated with curved volcanic island arcs on the landward plate, for ex ...
SYNTHESIS: Theory Of Plate Tectonics
... Firstly, as the cold, stiff plate begins its arduous descent, a continuous series of earthquakes is created. The plate then starts to heat up and at a depth of about 75 miles, certain magmas are melted and rise toward the surface. Eventually these magmas make their way up into the leading edge of th ...
... Firstly, as the cold, stiff plate begins its arduous descent, a continuous series of earthquakes is created. The plate then starts to heat up and at a depth of about 75 miles, certain magmas are melted and rise toward the surface. Eventually these magmas make their way up into the leading edge of th ...
Final Exam 6th 2013
... ____ 79. What is the force that moves glaciers? a. ice c. gravity b. wind d. energy ____ 80. The deep-ocean basin consists of the abyssal plain, mid-ocean ridges, ocean trenches, rift valleys, and a. seamounts. c. tectonic plates. b. hot spots. d. continental crust. ...
... ____ 79. What is the force that moves glaciers? a. ice c. gravity b. wind d. energy ____ 80. The deep-ocean basin consists of the abyssal plain, mid-ocean ridges, ocean trenches, rift valleys, and a. seamounts. c. tectonic plates. b. hot spots. d. continental crust. ...
L03 - D4 - Teacher - Processes of Plate Tectonics
... The typical example of a divergent boundary is the mid-Atlantic ridge. As the plates spread apart a long (“crack”) forms and magma is able to flow to the surface. This magma forms new oceanic crust, volcanoes (and islands like Iceland) and shallow-focus earthquakes. These divergent boundaries are no ...
... The typical example of a divergent boundary is the mid-Atlantic ridge. As the plates spread apart a long (“crack”) forms and magma is able to flow to the surface. This magma forms new oceanic crust, volcanoes (and islands like Iceland) and shallow-focus earthquakes. These divergent boundaries are no ...
TECTONIC PLATES
... Tectonic plates are constantly moving. At different times, some plates move faster than others. However, even the fastest plates move only a few centimeters every year. Tectonic plate boundaries are places where the edges of two or more plates interact with each other. Because Earth’s plates are all ...
... Tectonic plates are constantly moving. At different times, some plates move faster than others. However, even the fastest plates move only a few centimeters every year. Tectonic plate boundaries are places where the edges of two or more plates interact with each other. Because Earth’s plates are all ...
Volcanoes and Plate Tectonics
... Some volcanoes mull from ~hot spots" in Earlh's mantle. A hoi spot is an arn when' matc:riaJ from deep within the manlle rises and then melts, forming magma. A volcano forms above a hOi spot when magma erupts through the crust and reaches the surface. Some hOI spot volcanoes lie in the middle of pla ...
... Some volcanoes mull from ~hot spots" in Earlh's mantle. A hoi spot is an arn when' matc:riaJ from deep within the manlle rises and then melts, forming magma. A volcano forms above a hOi spot when magma erupts through the crust and reaches the surface. Some hOI spot volcanoes lie in the middle of pla ...
PLATE TECTONICS
... of Eastern Africa extending from Mozambique to Ethiopia is being separated from the rest of continental Africa ...
... of Eastern Africa extending from Mozambique to Ethiopia is being separated from the rest of continental Africa ...
Plate Tectonics and Continental Drift lab
... Tectonics is the study of the origin and arrangement of Earth’s structural features which include not only folds and faults but also continents, mountains, and earthquake regions. The basic idea of tectonic theory is that Earth’s lithosphere (the crust and the rigid upper mantle) is divided into sev ...
... Tectonics is the study of the origin and arrangement of Earth’s structural features which include not only folds and faults but also continents, mountains, and earthquake regions. The basic idea of tectonic theory is that Earth’s lithosphere (the crust and the rigid upper mantle) is divided into sev ...
Focus Question - WordPress.com
... ____4___ Oceanic crust gets subducted into the deep ocean trench ____5___ Old ocean crust gets “recycled” as it turns back into molten material in the asthenosphere ...
... ____4___ Oceanic crust gets subducted into the deep ocean trench ____5___ Old ocean crust gets “recycled” as it turns back into molten material in the asthenosphere ...
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.