Mountain Building Quiz
... b) Oceanic crust-continental crust c) Continental crust-continental crust d) None of the above. Mountain ranges form at all types of convergent plate boundaries. ...
... b) Oceanic crust-continental crust c) Continental crust-continental crust d) None of the above. Mountain ranges form at all types of convergent plate boundaries. ...
Plate Tectonics Unit(poster)
... Drift and what was his evidence to support it? – Alfred Wegener: same fossils on different continents, and same rocks from mountains, and how continents fit together like a puzzle ...
... Drift and what was his evidence to support it? – Alfred Wegener: same fossils on different continents, and same rocks from mountains, and how continents fit together like a puzzle ...
Answers to Plate Tectonics Study Guide
... Geology = Wegener found the same rock layers in South America and Africa. Climate = Wegener found tropical plant fossils in Greenland which is very cold today. 9. Scientists did not believe Alfred Wegener because he could not explain how the plates in the Earth moved. 10. Divergent 11. The scientist ...
... Geology = Wegener found the same rock layers in South America and Africa. Climate = Wegener found tropical plant fossils in Greenland which is very cold today. 9. Scientists did not believe Alfred Wegener because he could not explain how the plates in the Earth moved. 10. Divergent 11. The scientist ...
Plate Tectonic Outline Notes
... volcano’s vent D. _______________________________ – areas where magma from deep in Earth’s mantle has melted through the crust to form several volcanoes 1. Ex. ___________________________________________ the Pacific Plate is moving over a stationary hot spot; Kauai is the ___________________ & Lo’ih ...
... volcano’s vent D. _______________________________ – areas where magma from deep in Earth’s mantle has melted through the crust to form several volcanoes 1. Ex. ___________________________________________ the Pacific Plate is moving over a stationary hot spot; Kauai is the ___________________ & Lo’ih ...
5) Types of Boundaries
... soft, plastic interior (the asthenosphere). The sinking of the block forms a central valley called a rift. Magma (liquid rock) seeps upward to fill the cracks. New crust is formed along the boundary. Earthquakes occur along the faults, and volcanoes form where the magma reaches the surface. ...
... soft, plastic interior (the asthenosphere). The sinking of the block forms a central valley called a rift. Magma (liquid rock) seeps upward to fill the cracks. New crust is formed along the boundary. Earthquakes occur along the faults, and volcanoes form where the magma reaches the surface. ...
World Geography 3200/3202
... • Tensional Forces occur where two tectonic plates are pushed apart. The tension is created as the plates move away from each other. • Ridge Zones sometimes occur where two plates move apart. The magma rises between the plates and forms a ridge. • Again caused by convectional currents in the magma ...
... • Tensional Forces occur where two tectonic plates are pushed apart. The tension is created as the plates move away from each other. • Ridge Zones sometimes occur where two plates move apart. The magma rises between the plates and forms a ridge. • Again caused by convectional currents in the magma ...
Geology 101 chapter2 Plate tectonics
... separating North and South America from Europe and Africa by thousands of ...
... separating North and South America from Europe and Africa by thousands of ...
Plate Tectonics - Asheboro High School
... trenches Often forms volcanoes on the ocean floor Island arc forms as volcanoes emerge Examples: – Aleutian Trench & Islands – Mariana Trench and Islands ...
... trenches Often forms volcanoes on the ocean floor Island arc forms as volcanoes emerge Examples: – Aleutian Trench & Islands – Mariana Trench and Islands ...
Assessing the nature of crust in the central Red Sea using potential
... The Red Sea is considered an important example of a rifted continental shield proceeding to a seafloor spreading stage of development, and the transition of crustal types there from stretched continental to oceanic should mark the onset of significant mantle melting. However, whether the crust in th ...
... The Red Sea is considered an important example of a rifted continental shield proceeding to a seafloor spreading stage of development, and the transition of crustal types there from stretched continental to oceanic should mark the onset of significant mantle melting. However, whether the crust in th ...
Continental Drift and Sea-Floor Spreading 7.2
... 1. Continents fit together like puzzle pieces (mountain ranges lined up) 2. Mesosaurus – Reptile fossil found on South America and Africa – It couldn’t swim! 3. Glossopteris – Tropical plant fossil that was found in Antarctica! ...
... 1. Continents fit together like puzzle pieces (mountain ranges lined up) 2. Mesosaurus – Reptile fossil found on South America and Africa – It couldn’t swim! 3. Glossopteris – Tropical plant fossil that was found in Antarctica! ...
Plate Tectonics
... • Plates move 1-12 cm per year and have been for millions of years. (North America and Europe are moving apart at a rate of 2.5 cm per year. About as fast as your fingernails grow.) ...
... • Plates move 1-12 cm per year and have been for millions of years. (North America and Europe are moving apart at a rate of 2.5 cm per year. About as fast as your fingernails grow.) ...
Earth`s Inner Layers Quiz
... 1) The ____________ makes up less than 1% of the Earth by mass. 2) Most of the Earth’s mass is located in the… a) mantle. b) inner core. c) outer core. d) none of these 3) The lithosphere is part of the… a) crust. b) mantle. c) crust and mantle. d) mantle and outer. core 4) The asthenosphere is easi ...
... 1) The ____________ makes up less than 1% of the Earth by mass. 2) Most of the Earth’s mass is located in the… a) mantle. b) inner core. c) outer core. d) none of these 3) The lithosphere is part of the… a) crust. b) mantle. c) crust and mantle. d) mantle and outer. core 4) The asthenosphere is easi ...
Plate Tectonics - School of Ocean and Earth Science and Technology
... Notice how Wilson’s theory explain depth offsets across fracture zones ...
... Notice how Wilson’s theory explain depth offsets across fracture zones ...
8.9AB Plate Tectonic Theory
... away from each other; on land creates rift valleys, on the sea floor creates new ocean crust ...
... away from each other; on land creates rift valleys, on the sea floor creates new ocean crust ...
Take Home Test #11 (16 Questions) Complete the following on your
... C. distribution of earthquakes and volcanoes 2) What kind of movement on a plate boundary causes mountain building? A. Divergent movement C. Transform movement B. Convergent movement D. Biome movement 3) Which of the following discoveries caused science to re-evaluate its opinion of Wegener's hypoth ...
... C. distribution of earthquakes and volcanoes 2) What kind of movement on a plate boundary causes mountain building? A. Divergent movement C. Transform movement B. Convergent movement D. Biome movement 3) Which of the following discoveries caused science to re-evaluate its opinion of Wegener's hypoth ...
The Layers of the EarthPowerPoint Fill-in-the
... The crust is composed of two rocks. The continental crust is mostly _______________. The oceanic crust is ________________. Basalt is much ___________________ than the granite. Because of this the ___________________ dense continents ride on the denser oceanic plates. The ___________________ is the ...
... The crust is composed of two rocks. The continental crust is mostly _______________. The oceanic crust is ________________. Basalt is much ___________________ than the granite. Because of this the ___________________ dense continents ride on the denser oceanic plates. The ___________________ is the ...
CCA 26 Plate Tectonics
... 8. When continental plates collide, mountains can form. When continental and oceanic plates collide, volcanoes can form. What makes oceanic crust different for this event to occur? 9. Fill in another word or two words that mean the same as – Convergent - ______________ ...
... 8. When continental plates collide, mountains can form. When continental and oceanic plates collide, volcanoes can form. What makes oceanic crust different for this event to occur? 9. Fill in another word or two words that mean the same as – Convergent - ______________ ...
a. asthenosphere b. lithosphere c. mesosphere d. outer core e. inner
... 4. List the three layers of the Earth, based on their chemical composition. _________________________________________________________________________ 5. What three elements make up most of the Earth’s crust? _________________________________________________________________________ 6. Oceanic crust i ...
... 4. List the three layers of the Earth, based on their chemical composition. _________________________________________________________________________ 5. What three elements make up most of the Earth’s crust? _________________________________________________________________________ 6. Oceanic crust i ...
Document
... 1) Begins with view of Earth with continents in their present positions, 2) continents move back in time to reunite as Pangaea, 3) Pangaea label appears, 4) Locations of stratigraphic and fossil evidence that Wegener used to argue in favor of continental drift is added. http://www2.nature.nps.gov/ge ...
... 1) Begins with view of Earth with continents in their present positions, 2) continents move back in time to reunite as Pangaea, 3) Pangaea label appears, 4) Locations of stratigraphic and fossil evidence that Wegener used to argue in favor of continental drift is added. http://www2.nature.nps.gov/ge ...
Earth`s interior
... Three main layers of Earth vary greatly in size, composition, temperature and pressure. They are: crust, mantle, and core. ...
... Three main layers of Earth vary greatly in size, composition, temperature and pressure. They are: crust, mantle, and core. ...
Click on image to content
... Ocean is thus an Age sequence with newly formed rock appearing at the Mid Atlantic Ridge and the oldest rocks being at the North American and European Coastlines. The time of transport from the mid Atlantic ridge to these coastlines is about 210 million years which indicates a total sea floor motion ...
... Ocean is thus an Age sequence with newly formed rock appearing at the Mid Atlantic Ridge and the oldest rocks being at the North American and European Coastlines. The time of transport from the mid Atlantic ridge to these coastlines is about 210 million years which indicates a total sea floor motion ...
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.