Section 1.2 A View from Earth
... • Ocean is the most prominent feature of the hydrosphere. • Is nearly 71% of Earth's surface - Holds about 97% of Earth's water Also includes fresh water found in streams, lakes, and glaciers, as well as that found underground 2. Atmosphere • Thin, tenuous blanket of air • One half lies below 5.6 ki ...
... • Ocean is the most prominent feature of the hydrosphere. • Is nearly 71% of Earth's surface - Holds about 97% of Earth's water Also includes fresh water found in streams, lakes, and glaciers, as well as that found underground 2. Atmosphere • Thin, tenuous blanket of air • One half lies below 5.6 ki ...
4th Six Weeks Plate Tectonics and Topographic Maps Study Guide
... 1) Divergent; (divide) <- ->; ridges, rises, rift valleys (Mid Atlantic Ocean Ridge, Great Rift Valley) 2) Convergent; (collide) -> <-; mountains, volcanoes, trenches (Rocky Mountains, Mt. St. Helen’s) 3) Transform -> ; (slide past one another) earthquakes, strike-slip faults, faults (San Andreas) ...
... 1) Divergent; (divide) <- ->; ridges, rises, rift valleys (Mid Atlantic Ocean Ridge, Great Rift Valley) 2) Convergent; (collide) -> <-; mountains, volcanoes, trenches (Rocky Mountains, Mt. St. Helen’s) 3) Transform -> ; (slide past one another) earthquakes, strike-slip faults, faults (San Andreas) ...
PLATE TECTONICS AND SEA-FLOOR SPREADING REVIEW
... CREATING MOUNTAINS (EX: HIMALAYAS CREATED BY INDIA COLLING WITH ASIA) 9. ___SUBDUCTION___ occurs when old oceanic crust is forced back into the mantle. 10. Where is new oceanic crust being formed? __AT MID OCEAN RIDGES (SEA- FLOOR SPREADING)_____ ...
... CREATING MOUNTAINS (EX: HIMALAYAS CREATED BY INDIA COLLING WITH ASIA) 9. ___SUBDUCTION___ occurs when old oceanic crust is forced back into the mantle. 10. Where is new oceanic crust being formed? __AT MID OCEAN RIDGES (SEA- FLOOR SPREADING)_____ ...
File
... Continental-continental – because both plates are equally dense, they will push each other upwards, forming mountains. Continental-oceanic – the oceanic plate will sink under the continental plate and will become magma. ...
... Continental-continental – because both plates are equally dense, they will push each other upwards, forming mountains. Continental-oceanic – the oceanic plate will sink under the continental plate and will become magma. ...
Plate Tectonics
... Theory that explains the movement of continents across the globe. It explains why some earthquakes occur and volcanoes on land and the ocean floor. ...
... Theory that explains the movement of continents across the globe. It explains why some earthquakes occur and volcanoes on land and the ocean floor. ...
The Theory of Plate Tectonics
... b. When an oceanic plate slides under a continental plate, a deep ocean forms. Near the trench, a line of ...
... b. When an oceanic plate slides under a continental plate, a deep ocean forms. Near the trench, a line of ...
Unit Six Notes
... Island arcs are created (a pattern of volcanic islands created from a subduction zone that is located off the coast) ...
... Island arcs are created (a pattern of volcanic islands created from a subduction zone that is located off the coast) ...
National Geographic – Colliding Continents Video
... 4. The lighter elements, including ______________ and _______________ rise towards the surface and erupt in volcanoes as molten rock. 5. Most scientists believe that the water that formed our oceans came from many, many ________________, which contained water. 6. How old was Earth believed to be whe ...
... 4. The lighter elements, including ______________ and _______________ rise towards the surface and erupt in volcanoes as molten rock. 5. Most scientists believe that the water that formed our oceans came from many, many ________________, which contained water. 6. How old was Earth believed to be whe ...
Transform Boundary
... • Since Wegener's day, scientists have mapped and explored the great system of oceanic ridges, the sites of frequent earthquakes, where molten rock rises from below the crust and hardens into new crust. • We now know that the farther away you travel from a ridge, the older the crust is, and the olde ...
... • Since Wegener's day, scientists have mapped and explored the great system of oceanic ridges, the sites of frequent earthquakes, where molten rock rises from below the crust and hardens into new crust. • We now know that the farther away you travel from a ridge, the older the crust is, and the olde ...
CH 5 section 1
... I. Global Landforms: During the _____ rain, water ______ in street gutters carries ______, twigs, litter, and small ______. Small particles of soil/rock are also found=sediment=sedimentary rock over time. 1. What would the Earth’s surface be like today if erosion were the only force acting upon it? ...
... I. Global Landforms: During the _____ rain, water ______ in street gutters carries ______, twigs, litter, and small ______. Small particles of soil/rock are also found=sediment=sedimentary rock over time. 1. What would the Earth’s surface be like today if erosion were the only force acting upon it? ...
File
... c. The universe began as a result of an enormous explosion called the big bang d. All continents were once part of the same landmass 4. Which of the following is NOT evidence used to support the theory that the Earth’s continents were ...
... c. The universe began as a result of an enormous explosion called the big bang d. All continents were once part of the same landmass 4. Which of the following is NOT evidence used to support the theory that the Earth’s continents were ...
Plate tectonics lecture
... • Convection (and internal heating) seems to keep the mantle hot and plastic enough for plates to sink into it -may not be enough to move plates ...
... • Convection (and internal heating) seems to keep the mantle hot and plastic enough for plates to sink into it -may not be enough to move plates ...
Lecture 2
... • Convection (and internal heating) seems to keep the mantle hot and plastic enough for plates to sink into it -may not be enough to move plates ...
... • Convection (and internal heating) seems to keep the mantle hot and plastic enough for plates to sink into it -may not be enough to move plates ...
Name: Date: Block
... 22. What affects the amount of destruction caused by earthquake vibrations? 23. Describe each of the Earth’s layers. 24. What landform develops at plate boundaries where one oceanic plate descends beneath another? 25. How does the age of seafloor sediments change with increasing distance from the oc ...
... 22. What affects the amount of destruction caused by earthquake vibrations? 23. Describe each of the Earth’s layers. 24. What landform develops at plate boundaries where one oceanic plate descends beneath another? 25. How does the age of seafloor sediments change with increasing distance from the oc ...
Theory of Plate Tectonics Cornell Notes Answers
... The Earth’s lithosphere is not solid, but actually cracked into approx. 12 pieces that cover the globe carrying the continents or parts of the ocean floor, or both. These pieces are called plates. Geological theory that states that the pieces of the Earth’s lithosphere are in constant, slow motion d ...
... The Earth’s lithosphere is not solid, but actually cracked into approx. 12 pieces that cover the globe carrying the continents or parts of the ocean floor, or both. These pieces are called plates. Geological theory that states that the pieces of the Earth’s lithosphere are in constant, slow motion d ...
7-3 Outline answers
... D. Plate Motion 1. Earth’s mantle moves because warmer, less-dense materials rise, and cooler, denser materials sink. ...
... D. Plate Motion 1. Earth’s mantle moves because warmer, less-dense materials rise, and cooler, denser materials sink. ...
C1 Topic 7 the earth revision Earth`s Structure (and rocks) 1. List the
... 10. Why don’t governments always act upon to scientist’s predictions of earthquakes? ...
... 10. Why don’t governments always act upon to scientist’s predictions of earthquakes? ...
Plate Tectonics
... crust of the Earth is split up into seven large plates (or ‘slabs’ of rock) and a few smaller ones, all of which are able to slowly move around on the Earth's surface. They float on the semi-molten mantle rocks. The plates are forced to move around by convection (heat) currents within the very hot r ...
... crust of the Earth is split up into seven large plates (or ‘slabs’ of rock) and a few smaller ones, all of which are able to slowly move around on the Earth's surface. They float on the semi-molten mantle rocks. The plates are forced to move around by convection (heat) currents within the very hot r ...
PlateTectonics_part2..
... Behaves as a non-flowing, rigid material. The material that moves as tectonic plates. Made of 2 components: crust and upper mantle (asthenosphere) ...
... Behaves as a non-flowing, rigid material. The material that moves as tectonic plates. Made of 2 components: crust and upper mantle (asthenosphere) ...
What is Plate Tectonics
... A slab of continental lithosphere (continental crust + lithospheric mantle) stands higher than a slab of oceanic lithosphere (containing oceanic crust) of the same dimensions. Oceanic crust: 3.0 g/cm3 Lithospheric mantle ~ 3.3 g/cm3 ...
... A slab of continental lithosphere (continental crust + lithospheric mantle) stands higher than a slab of oceanic lithosphere (containing oceanic crust) of the same dimensions. Oceanic crust: 3.0 g/cm3 Lithospheric mantle ~ 3.3 g/cm3 ...
Plate Tectonics and Associated Hazards
... • Separated from the core by the Gutenburg discontinuity • Largely composed of silicate rocks rich in iron and magnesium • Upper mantle (close to the crust) is rigid and together with the crust forms the lithosphere • Most of the mantle (asthenosphere) acts like it is semi-motlen. • Temperatures nea ...
... • Separated from the core by the Gutenburg discontinuity • Largely composed of silicate rocks rich in iron and magnesium • Upper mantle (close to the crust) is rigid and together with the crust forms the lithosphere • Most of the mantle (asthenosphere) acts like it is semi-motlen. • Temperatures nea ...
Plate Tec Review Sheet 2016 Answers
... CREATING MOUNTAINS (EX: HIMALAYAS CREATED BY INDIA COLLING WITH ASIA) 9. ___SUBDUCTION___ occurs when old oceanic crust is forced back into the mantle. 10. Where is new oceanic crust being formed? __AT MID OCEAN RIDGES (SEA- FLOOR SPREADING)_____ ...
... CREATING MOUNTAINS (EX: HIMALAYAS CREATED BY INDIA COLLING WITH ASIA) 9. ___SUBDUCTION___ occurs when old oceanic crust is forced back into the mantle. 10. Where is new oceanic crust being formed? __AT MID OCEAN RIDGES (SEA- FLOOR SPREADING)_____ ...
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.