Chapter 7 Study Guide Plate Tectonics What is the major evidence
... Chapter 7 Study Guide Plate Tectonics What is the major evidence that sea-floor spreading creates new lithosphere? Explain your answer. If scientists were able to drill through the Earth’s crust, would it be better to drill through oceanic crust or continental crust? Explain your answer. Tectonic pl ...
... Chapter 7 Study Guide Plate Tectonics What is the major evidence that sea-floor spreading creates new lithosphere? Explain your answer. If scientists were able to drill through the Earth’s crust, would it be better to drill through oceanic crust or continental crust? Explain your answer. Tectonic pl ...
Plate Tectonics
... • Wegner could NOT prove how the continents moved, thus scientists did NOT accept the Continental Drift theory. ...
... • Wegner could NOT prove how the continents moved, thus scientists did NOT accept the Continental Drift theory. ...
Mechanisms of Plate Motion
... basic driving force for plate tectonics Convective Flow – the motion of matter resulting from convection The slow movements of the plates and mantle are driven by the unequal distribution of Earth’s heat from the radioactive decay elements ...
... basic driving force for plate tectonics Convective Flow – the motion of matter resulting from convection The slow movements of the plates and mantle are driven by the unequal distribution of Earth’s heat from the radioactive decay elements ...
Theory of Plate Tectonics
... • Ocean plate colliding with another ocean plate • The more dense plate slides under the less dense plate creating a subduction zone called a TRENCH ...
... • Ocean plate colliding with another ocean plate • The more dense plate slides under the less dense plate creating a subduction zone called a TRENCH ...
quiz 1-physical geology
... Match the terms/names listed [a. Yellowstone; b. Mediterranean Mtns; c. Appalachian Mtns; d. Ring of Fire; e. East African Rift Valley with those given below: 11.Circum-Pacific Belt 12.Future Mtn System 13.Hot Spot 14.Future Ocean 15.Ancient Mtn System ...
... Match the terms/names listed [a. Yellowstone; b. Mediterranean Mtns; c. Appalachian Mtns; d. Ring of Fire; e. East African Rift Valley with those given below: 11.Circum-Pacific Belt 12.Future Mtn System 13.Hot Spot 14.Future Ocean 15.Ancient Mtn System ...
Earth is composed of 3 layers
... -Plates move apart (rift) from each other (tension) 1. Continental = creates gap (rift valley) in which water can flow in *example: Red Sea; Great Rift Valley ...
... -Plates move apart (rift) from each other (tension) 1. Continental = creates gap (rift valley) in which water can flow in *example: Red Sea; Great Rift Valley ...
Section 19.2
... know today had once been part of an earlier supercontinent. He called this great landmass Pangaea. ...
... know today had once been part of an earlier supercontinent. He called this great landmass Pangaea. ...
Plate Boundaries
... Africa, South America, India, and Australia. Wegener believed that the only way this could have happened was if these continents had been located at higher (colder) latitudes historically. • e.g. glacial striations (scrapings), in hot desert landscapes. ...
... Africa, South America, India, and Australia. Wegener believed that the only way this could have happened was if these continents had been located at higher (colder) latitudes historically. • e.g. glacial striations (scrapings), in hot desert landscapes. ...
Crustal Diapirism - Neutrino Geoscience 2008
... • Predominantly vertical (diapiric) crustal tectonics in the Early Earth; but also: • Supplies metabasalts to the lower crust to form TTGs (tonalites, trondhjemites and granodiorites) • Leaves a depleted restite which can be harzburgitic to dunitic (for komatiitic volcanism), and which can accumulat ...
... • Predominantly vertical (diapiric) crustal tectonics in the Early Earth; but also: • Supplies metabasalts to the lower crust to form TTGs (tonalites, trondhjemites and granodiorites) • Leaves a depleted restite which can be harzburgitic to dunitic (for komatiitic volcanism), and which can accumulat ...
Unit 7 Review Because of the weight of the rock above, pressure
... 2. Three main layers make up Earth’s interior: ______________, ________________, and _____________. Pg 317 3. The ____________________ is a layer of rock that forms Earth’s outer skin. Pg 318 4. The crust beneath the ocean is called ____________________ crust. Pg 318 5. Oceanic crust consists mostly ...
... 2. Three main layers make up Earth’s interior: ______________, ________________, and _____________. Pg 317 3. The ____________________ is a layer of rock that forms Earth’s outer skin. Pg 318 4. The crust beneath the ocean is called ____________________ crust. Pg 318 5. Oceanic crust consists mostly ...
OCN 201: Plate Tectonics II
... MOR to abyssal plain/trench • Dragging by convection cells acting on base of the plate ...
... MOR to abyssal plain/trench • Dragging by convection cells acting on base of the plate ...
The Earth`s Layers and Plate Tectonics Study Guide #1 Unit 3
... Transform boundary -where crust is neither produced nor destroyed as the plates slide ...
... Transform boundary -where crust is neither produced nor destroyed as the plates slide ...
Plate Tectonics Notes
... A. Geologists are scientists that study the forces that shape our planet. They study chemical and physical characteristics of rock – material that forms the Earth’s surface and crust. Geologists map where different rock types are – both above and below the surface. They describe landforms – both in ...
... A. Geologists are scientists that study the forces that shape our planet. They study chemical and physical characteristics of rock – material that forms the Earth’s surface and crust. Geologists map where different rock types are – both above and below the surface. They describe landforms – both in ...
File
... b. Sea-floor spreading occurs c. Oceanic lithosphere is destroyed d. Tectonic plates are colliding 10. Explain how oceanic lithosphere forms at mid-ocean ridges: Magma rises to the surface at a mid-ocean ridge and solidifies to form new oceanic ...
... b. Sea-floor spreading occurs c. Oceanic lithosphere is destroyed d. Tectonic plates are colliding 10. Explain how oceanic lithosphere forms at mid-ocean ridges: Magma rises to the surface at a mid-ocean ridge and solidifies to form new oceanic ...
Plate Tectonics Reading Passage
... But it wasn’t enough to assume our continents were once a single landmass just because they look like they could fit together. Therefore, scientists began looking at fossils on different continents. They found similar fossils on Australia and southern Asia. They also found ...
... But it wasn’t enough to assume our continents were once a single landmass just because they look like they could fit together. Therefore, scientists began looking at fossils on different continents. They found similar fossils on Australia and southern Asia. They also found ...
Plate Tectonics, Layers, and Continental Drift Mini
... c. transform 20. If a diverging boundary took place on land what would form over time? a. mountain b. seafloor spreading c. volcano d. rift valley 21. What was the name of the single large landmass Wegener thought once existed? a. North America b. Pangaea c. Gondwana d. Euroasia 22. The continents a ...
... c. transform 20. If a diverging boundary took place on land what would form over time? a. mountain b. seafloor spreading c. volcano d. rift valley 21. What was the name of the single large landmass Wegener thought once existed? a. North America b. Pangaea c. Gondwana d. Euroasia 22. The continents a ...
Study questions for Quiz 8 Plate Tectonics – more questions on
... Study questions for Quiz 8 Plate Tectonics – more questions on Monday What were the major breakthroughs I the 1960s that helped to support the theory of Plate Tectonics? Where does most tectonic activity occur? What features on the Earth’s surface indicate the direction of relative motion of the cru ...
... Study questions for Quiz 8 Plate Tectonics – more questions on Monday What were the major breakthroughs I the 1960s that helped to support the theory of Plate Tectonics? Where does most tectonic activity occur? What features on the Earth’s surface indicate the direction of relative motion of the cru ...
Plate Tectonics
... rock melts as it dives downward. • Then because of hot things rise and cold things sink the liquid hot magma rises and hard rock sinks, creating circulation. • This circulation is called convection currents • Convection currents are the reason that the light plates move over the mantle. ...
... rock melts as it dives downward. • Then because of hot things rise and cold things sink the liquid hot magma rises and hard rock sinks, creating circulation. • This circulation is called convection currents • Convection currents are the reason that the light plates move over the mantle. ...
Continental Drift
... plates move toward each other. The two plates hit and deform the crust. Tends to cause volcanoes and earthquakes ...
... plates move toward each other. The two plates hit and deform the crust. Tends to cause volcanoes and earthquakes ...
File
... [Extension] Read the information below and answer the questions in sentences in your jotter. Oceanic Lithosphere The rigid, outermost layer of the Earth comprising the crust and upper mantle is called the lithosphere. New oceanic lithosphere forms through volcanism in the form of fissures at mid-oc ...
... [Extension] Read the information below and answer the questions in sentences in your jotter. Oceanic Lithosphere The rigid, outermost layer of the Earth comprising the crust and upper mantle is called the lithosphere. New oceanic lithosphere forms through volcanism in the form of fissures at mid-oc ...
Plate Tectonics Vocab
... Trace of an ancient organism that has been trapped in sedimentary rock ...
... Trace of an ancient organism that has been trapped in sedimentary rock ...
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.