PLATE TECTONICS
... • Continent wedged into subduction zone but not carried down it • Suture zone Crust thickened • Two thrust belts Explains mountain belt in interior of continent (e.g. Himalaya) Plate size • New sea floor added to trailing edge of plate e.g. North American plate growing at mid-Atlantic ridge • Oceani ...
... • Continent wedged into subduction zone but not carried down it • Suture zone Crust thickened • Two thrust belts Explains mountain belt in interior of continent (e.g. Himalaya) Plate size • New sea floor added to trailing edge of plate e.g. North American plate growing at mid-Atlantic ridge • Oceani ...
Workshop handout (3)
... Circulating movements of magma in the mantle caused by heat from the core The point on the surface directly G An scale indicating the strength of above the focus of an an earthquake, as measured by a earthquake seismograph Where two tectonic plates move H The process by which one tectonic away from ...
... Circulating movements of magma in the mantle caused by heat from the core The point on the surface directly G An scale indicating the strength of above the focus of an an earthquake, as measured by a earthquake seismograph Where two tectonic plates move H The process by which one tectonic away from ...
Plate Tectonics plate boundaries Blas
... and under each other and sometimes they move away from each other. Plate Tectonics is the theory that describes the formation, movements and interactions of these plates. ...
... and under each other and sometimes they move away from each other. Plate Tectonics is the theory that describes the formation, movements and interactions of these plates. ...
Chapter 1-3
... CD 3-D atlas S. America fits into Africa o Pangaea Page 45 Pangea Super continent A single landmass that existed millions of years ago. ...
... CD 3-D atlas S. America fits into Africa o Pangaea Page 45 Pangea Super continent A single landmass that existed millions of years ago. ...
Bell Ringer
... Plate Tectonics • Alfred Wegener hypothesized that all of the continents might have been part of one landmass in the past before they drifted apart. • He pieced the continents together to form a ...
... Plate Tectonics • Alfred Wegener hypothesized that all of the continents might have been part of one landmass in the past before they drifted apart. • He pieced the continents together to form a ...
Lexicon of Useful Plate Tectonic Terms v
... spreading zone – where upwelling magma pushes two plates apart/ Iceland is the only place on Earth where this is happening above sea level, and it is getting bigger every year subduction – when one plate slides below another tectonics – mountain building transform plate boundary - where two plates ‘ ...
... spreading zone – where upwelling magma pushes two plates apart/ Iceland is the only place on Earth where this is happening above sea level, and it is getting bigger every year subduction – when one plate slides below another tectonics – mountain building transform plate boundary - where two plates ‘ ...
Worksheet 1
... 32. A map line connecting points that have the same age is a(n) __________________________ 33. The _____________________________ states that Earth’s crust and rigid upper mantle are broken into enormous slabs called plates that move slowly over Earth’s surface 34. ____________________ are places whe ...
... 32. A map line connecting points that have the same age is a(n) __________________________ 33. The _____________________________ states that Earth’s crust and rigid upper mantle are broken into enormous slabs called plates that move slowly over Earth’s surface 34. ____________________ are places whe ...
Chapter 3
... • Transform Boundaries – short segments of a ridge – Transform faults offset ridge – San Andreas Fault – transform fault under continental crust ...
... • Transform Boundaries – short segments of a ridge – Transform faults offset ridge – San Andreas Fault – transform fault under continental crust ...
Earth`s Structure and Tectonics Overview 2014
... 9. As more molten material rises and hardens, it forces the sea floor to move apart. This process is called _______________ ____________________ ______________________. 10. Sea floor spreading (at divergent boundary points A, B, D) results in the creation of new crust. However, the Earth’s total sur ...
... 9. As more molten material rises and hardens, it forces the sea floor to move apart. This process is called _______________ ____________________ ______________________. 10. Sea floor spreading (at divergent boundary points A, B, D) results in the creation of new crust. However, the Earth’s total sur ...
L1: Continental Drift and Layers of the Earth Goals: to describe the
... 1. a) How do scientists know what Earth’s inner layers look like when they can’t see them or use tools to probe that deep? ...
... 1. a) How do scientists know what Earth’s inner layers look like when they can’t see them or use tools to probe that deep? ...
Study Guide: Earth`s Structure Name: Choose the type of plate
... ___6. The part of the Earth on which the tectonic plates are able to move is the a. lithosphere b. asthenosphere c. outer core d. subduction zone ___7. The type of plate boundary involving a collision between two tectonic plates is a. divergent b. transform c. convergent ...
... ___6. The part of the Earth on which the tectonic plates are able to move is the a. lithosphere b. asthenosphere c. outer core d. subduction zone ___7. The type of plate boundary involving a collision between two tectonic plates is a. divergent b. transform c. convergent ...
i-vi_MCD-SCI-EA-B-FM.indd - Middletown Public Schools
... b. a blanket being folded c. jump ropes being stretched d. sponges on boiling water ____ 7. New crust forms along a(n) a. convergent boundary b. divergent boundary c. ocean trench d. subduction zone ____ 8. Earth’s magnetic reversals are recorded in a. sea-floor rock b. the mantle c. deep-ocean tren ...
... b. a blanket being folded c. jump ropes being stretched d. sponges on boiling water ____ 7. New crust forms along a(n) a. convergent boundary b. divergent boundary c. ocean trench d. subduction zone ____ 8. Earth’s magnetic reversals are recorded in a. sea-floor rock b. the mantle c. deep-ocean tren ...
Alfred Wegener - Colts Neck Township Schools
... America, Africa, India, and Australia –Coral reefs found in Northern Canada –Coal formation in North America ...
... America, Africa, India, and Australia –Coral reefs found in Northern Canada –Coal formation in North America ...
The Rock Cycle
... • The linear chains of volcanoes, deep canyons, plateaus, and large expense of monotonously flat plains are widely ...
... • The linear chains of volcanoes, deep canyons, plateaus, and large expense of monotonously flat plains are widely ...
What happens at tectonic plate boundaries?
... Where a continental plate slide past another plate Ex the San Andreas Fault – where the Pacific plate slides past the North American plate ...
... Where a continental plate slide past another plate Ex the San Andreas Fault – where the Pacific plate slides past the North American plate ...
BACKGROUNDINFORMATION
... Plate movement is slow, one to two centimeters per year (less than one inch), yet the geologic activity that occurs at the plate boundaries can be disastrous, often causing earthquakes, volcanoes, hot springs and geysers. In the distant past, this geologic activity has given rise to mountain ranges, ...
... Plate movement is slow, one to two centimeters per year (less than one inch), yet the geologic activity that occurs at the plate boundaries can be disastrous, often causing earthquakes, volcanoes, hot springs and geysers. In the distant past, this geologic activity has given rise to mountain ranges, ...
Plate Tectonics Powerpoint
... • Rift valleys are deep faulted structures found along the axes of divergent plate boundaries. They can develop on the seafloor or on land. • Seafloor spreading produces new oceanic lithosphere. ...
... • Rift valleys are deep faulted structures found along the axes of divergent plate boundaries. They can develop on the seafloor or on land. • Seafloor spreading produces new oceanic lithosphere. ...
Ocean waves that wear away an island`s shoreline
... soft rock that bends like plastic. 4. Oceanic crust is made up mostly of dense rock called ____________________. 5. When you touch a hot plate, the transfer of heat from the plate to your hand is called ____________________. 6. The energy from the sun that warms your face is transferred by a process ...
... soft rock that bends like plastic. 4. Oceanic crust is made up mostly of dense rock called ____________________. 5. When you touch a hot plate, the transfer of heat from the plate to your hand is called ____________________. 6. The energy from the sun that warms your face is transferred by a process ...
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.