EarthScience_Topic 9-Properties of Earths Interior
... • Currents caused by differences in density ...
... • Currents caused by differences in density ...
Subduction-zone metamorphism, calc-alkaline - U
... continental salient that is an integral part of descending, largely oceanic lithosphere, disengagement of a crustal slice may be delayed to depths of 90–125 km or more. Insertion of increasing amounts of low-density material into the subduction zone gradually reduces the overall negative buoyancy of ...
... continental salient that is an integral part of descending, largely oceanic lithosphere, disengagement of a crustal slice may be delayed to depths of 90–125 km or more. Insertion of increasing amounts of low-density material into the subduction zone gradually reduces the overall negative buoyancy of ...
Microsoft Word - APES Chapter 16 Study Guide
... 9. Name the 3 types of boundaries between lithospheric plates. ...
... 9. Name the 3 types of boundaries between lithospheric plates. ...
Study outline for Oceanography
... 1. Describe some of the types of evidence that lead Alfred Wegener to formulate his Continental Drift theory. 2. How did geologist Harry Hess come up with the idea of Sea Floor Spreading? 3. Describe how paleomagnetism works and how it played a role in demonstrating sea floor spreading. What are mag ...
... 1. Describe some of the types of evidence that lead Alfred Wegener to formulate his Continental Drift theory. 2. How did geologist Harry Hess come up with the idea of Sea Floor Spreading? 3. Describe how paleomagnetism works and how it played a role in demonstrating sea floor spreading. What are mag ...
Lorna Merklinger
... benchmarks Compare and contrast processes that form minerals quickly with those that form s AR reading time for students completing assigned work Accommodations provided based on individualized needs ...
... benchmarks Compare and contrast processes that form minerals quickly with those that form s AR reading time for students completing assigned work Accommodations provided based on individualized needs ...
Unit 2 Exploring Plate Tectonics
... Pacific plate was moving in a north-northwest direction, then abruptly (in geologic time, anyway) changed to a more west-northwest direction. Other seamount chains in the Pacific show a similar pattern. Sudden changes in plate motion occur when two or more continents collide. Continental plates are ...
... Pacific plate was moving in a north-northwest direction, then abruptly (in geologic time, anyway) changed to a more west-northwest direction. Other seamount chains in the Pacific show a similar pattern. Sudden changes in plate motion occur when two or more continents collide. Continental plates are ...
Magma Supply Vs Magma Plumbing
... • Be able to sketch the different kinds of convergent plate margins and label key processes • Understand the processes in the “subduction zone ...
... • Be able to sketch the different kinds of convergent plate margins and label key processes • Understand the processes in the “subduction zone ...
FREE Sample Here
... 36) Describe how the Hawaiian Islands were formed and explain how they are evidence for plate motion. Bloom's Taxonomy: Knowledge, Application 37) Describe the theory of continental drift and explain how it relates to Plate Tectonics. Bloom's Taxonomy: Comprehension, Application 38) Describe the mec ...
... 36) Describe how the Hawaiian Islands were formed and explain how they are evidence for plate motion. Bloom's Taxonomy: Knowledge, Application 37) Describe the theory of continental drift and explain how it relates to Plate Tectonics. Bloom's Taxonomy: Comprehension, Application 38) Describe the mec ...
11.14 Where Will Mountains and Basins Form in This Region?
... features. Your instructor may have you predict other features that might develop, such as a tectonic terrane (T) or features related to a collision (C). 4. On the map below are letters A – D. A is along the coast, B is at the future position of the magmatic belt, C is within the future fold and thru ...
... features. Your instructor may have you predict other features that might develop, such as a tectonic terrane (T) or features related to a collision (C). 4. On the map below are letters A – D. A is along the coast, B is at the future position of the magmatic belt, C is within the future fold and thru ...
Layer of the Earth Activity- Egg - Diff- RP
... Grade 8 Science Chapter 21- Layers of the Earth Activity In this activity, you will dissect an egg and compare the layers of the egg to the layers of the Earth. 1. Begin by peeling the shell of the egg off. This layer is analogous to the crust of the Earth. Answer the following question before conti ...
... Grade 8 Science Chapter 21- Layers of the Earth Activity In this activity, you will dissect an egg and compare the layers of the egg to the layers of the Earth. 1. Begin by peeling the shell of the egg off. This layer is analogous to the crust of the Earth. Answer the following question before conti ...
pdf
... xcept when an earthquake strikes or a volcano erupts, the ground beneath our feet seems still. It’s an illusion, of course: Earth’s tectonic plates migrate across the surface at an average rate of 2 to 4 centimeters a year. Where two plates collide, one typically gets pushed into the mantle, a proce ...
... xcept when an earthquake strikes or a volcano erupts, the ground beneath our feet seems still. It’s an illusion, of course: Earth’s tectonic plates migrate across the surface at an average rate of 2 to 4 centimeters a year. Where two plates collide, one typically gets pushed into the mantle, a proce ...
Geologic Evolution Vocabulary
... Plate Tectonics – the theory that Earth’s lithosphere is broken into large sections (tectonic plates) that move and change over time. ...
... Plate Tectonics – the theory that Earth’s lithosphere is broken into large sections (tectonic plates) that move and change over time. ...
Density of the Earth
... sample, take the rock out of the graduated cylinder, add more water and start over at step 4. RECORD final height of water with sample. 6. Subtract (final height of water with sample – starting height of water). RECORD volume of sample. 7. Calculate the density for sample #1. (D = Mass / Volume) 8. ...
... sample, take the rock out of the graduated cylinder, add more water and start over at step 4. RECORD final height of water with sample. 6. Subtract (final height of water with sample – starting height of water). RECORD volume of sample. 7. Calculate the density for sample #1. (D = Mass / Volume) 8. ...
568KB - NZQA
... Volcanic Zone (TVZ). Subduction is happening because of the different densities of the plates. Pacific Plate is wholly oceanic and mostly basalt so is denser than Australian Plate. It is dragged down under the Australian Plate by gravity. Above this zone is the TVZ. Subduction is not smooth; frictio ...
... Volcanic Zone (TVZ). Subduction is happening because of the different densities of the plates. Pacific Plate is wholly oceanic and mostly basalt so is denser than Australian Plate. It is dragged down under the Australian Plate by gravity. Above this zone is the TVZ. Subduction is not smooth; frictio ...
Introduction to Plate Tectonics By Elizabeth Cochran
... near sea level and warm colors (yellow and reds) representing high elevations. Solid lines show the plate boundaries and plate names are given by orange label. Dots give earthquake locations and are colored by depth beneath the surface of the Earth (red = shallow and blue = deep). Question 1: Where ...
... near sea level and warm colors (yellow and reds) representing high elevations. Solid lines show the plate boundaries and plate names are given by orange label. Dots give earthquake locations and are colored by depth beneath the surface of the Earth (red = shallow and blue = deep). Question 1: Where ...
Earth,Notes,RevQs,Ch12
... 17. Conduction is a heat transfer mechanism that operates through matter by molecular activity. Heat is transferred by molecules vibrating into one another and therefore conduction is a slow process for many materials. Convection refers to the transfer of heat by moving material in a fluid-like mann ...
... 17. Conduction is a heat transfer mechanism that operates through matter by molecular activity. Heat is transferred by molecules vibrating into one another and therefore conduction is a slow process for many materials. Convection refers to the transfer of heat by moving material in a fluid-like mann ...
Large Igneous Provinces, Delamination, and Fertile Mantle
... volume of basalt, the uplift history, and the ubiquitous evidence for involvement of both continental and mid-ocean ridge material in LIP magmas. Some igneous provinces are built on top of rafted pieces of microcontinents or abandoned island arcs, but is there any mechanism for putting large chunks ...
... volume of basalt, the uplift history, and the ubiquitous evidence for involvement of both continental and mid-ocean ridge material in LIP magmas. Some igneous provinces are built on top of rafted pieces of microcontinents or abandoned island arcs, but is there any mechanism for putting large chunks ...
Subduction tectonics: Earthquake cycle and long
... Note to participants: The majority of this presentation focuses on short-term processes that influence subduction zone tectonics (earthquake cycle). The latter third or so deals with long-term deformation, but uses GPS measurements (short-term once again!) to reveal one example of long-term upper pl ...
... Note to participants: The majority of this presentation focuses on short-term processes that influence subduction zone tectonics (earthquake cycle). The latter third or so deals with long-term deformation, but uses GPS measurements (short-term once again!) to reveal one example of long-term upper pl ...
Semester 01 Syllabus/Study Guide Accelerated Earth Science
... 2. Describe convection currents and how they cause the plates of the earth to move. 3. Explain the evidence Alfred Wegener used to develop the theory of continental drift. 4. Describe sea-floor spreading and why it is important to plate tectonics. 5. Draw and explain the process of subduction. 6. Ex ...
... 2. Describe convection currents and how they cause the plates of the earth to move. 3. Explain the evidence Alfred Wegener used to develop the theory of continental drift. 4. Describe sea-floor spreading and why it is important to plate tectonics. 5. Draw and explain the process of subduction. 6. Ex ...
Lab #2 – Interpreting Tectonic and Bathymetric Maps
... (using the scale on the right and left margins of the map) at least one of two clearly visible locations. What is the tectonic setting of these deepest areas? Deep-sea trenches where subduction of oceanic crust occurs. Scotia Trench near 60º S is 6000 to 7000 m deep; Caribbean Trench is another loca ...
... (using the scale on the right and left margins of the map) at least one of two clearly visible locations. What is the tectonic setting of these deepest areas? Deep-sea trenches where subduction of oceanic crust occurs. Scotia Trench near 60º S is 6000 to 7000 m deep; Caribbean Trench is another loca ...
D1 Title Continental dynamics: understanding how continents work
... (GPS, InSAR), the historic seismic moment release rates and the longer-term deformation fields derived from geological observations such as palaeoseismic and faulting records. 2. The coupling between continental lithosphere and mantle convection [9]: Continental drift is clearly one of the first-ord ...
... (GPS, InSAR), the historic seismic moment release rates and the longer-term deformation fields derived from geological observations such as palaeoseismic and faulting records. 2. The coupling between continental lithosphere and mantle convection [9]: Continental drift is clearly one of the first-ord ...
The seabed off the coast of mainland Ecuador and around the
... the GVP as a natural prolongation of the Ecuadorian continental shelf related to article 76 UNCLOS, moves along with the Nazca Plate in relative to the GHS. The CAR stands 1.2 to 2.7 km higher than the surrounding seafloor, and presently is being subducted beneath the South American plate. Support f ...
... the GVP as a natural prolongation of the Ecuadorian continental shelf related to article 76 UNCLOS, moves along with the Nazca Plate in relative to the GHS. The CAR stands 1.2 to 2.7 km higher than the surrounding seafloor, and presently is being subducted beneath the South American plate. Support f ...
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.