Interactive Dynamic Earth ANSWERS
... If you don’t finish today and need to restart in the middle of this tomorrow, go to the green bar across the top of the page to choose the chapter on which you stopped. Read the intro and click on “Start your exploration with Earth's Structure.” Roll your mouse over each layer and answer the questio ...
... If you don’t finish today and need to restart in the middle of this tomorrow, go to the green bar across the top of the page to choose the chapter on which you stopped. Read the intro and click on “Start your exploration with Earth's Structure.” Roll your mouse over each layer and answer the questio ...
1 Eons, Eras, Periods and Epochs Dating by radioactive isotopes
... 5. Disk slowly accretes into clumps (planetesimals) that also contain heavier elements 6. planetesimals → planetoids → planets and satellites Hubble Space Telescope view of a new solar system 1500 l-y away in the Orion Nebula ...
... 5. Disk slowly accretes into clumps (planetesimals) that also contain heavier elements 6. planetesimals → planetoids → planets and satellites Hubble Space Telescope view of a new solar system 1500 l-y away in the Orion Nebula ...
Powerpoint Presentation Physical Geology, 10th ed.
... • Plate Tectonics Theory – Originally proposed in the late 1960s – Included new understanding of the seafloor and explanation of driving force – Describes lithosphere as being broken into plates that are in motion – Explains origin and locations of such things as volcanoes, fault zones and mountain ...
... • Plate Tectonics Theory – Originally proposed in the late 1960s – Included new understanding of the seafloor and explanation of driving force – Describes lithosphere as being broken into plates that are in motion – Explains origin and locations of such things as volcanoes, fault zones and mountain ...
Earth and its Moon: Alike or Different?
... b. It slopes downward away from the ridge. c. It sinks into the mantle and pulls away from the ridge. d. It exerts force on the plate. 39. The force on the rest of the plate from the asthenosphere below cooling, sinking rock is called _____________________________________________ . 40. Is ridge push ...
... b. It slopes downward away from the ridge. c. It sinks into the mantle and pulls away from the ridge. d. It exerts force on the plate. 39. The force on the rest of the plate from the asthenosphere below cooling, sinking rock is called _____________________________________________ . 40. Is ridge push ...
Outcome 7.4 Assessment Flash Cards Answers in this font
... mountain ranges by pushing two pieces of continental crust together and causing them to “build up.” ...
... mountain ranges by pushing two pieces of continental crust together and causing them to “build up.” ...
Ocean earth geology - Home | eaecaoceans11.srsbteachers
... time from a vast cloud of dust and gas (nebula). About 5 billion years ago, the nebula began to gravitationally contract, began to rotate and flattened. Eventually, the Sun ignited (fusion) and the newly formed planets began to differentiate - heavier elements and chemical components sank to the cen ...
... time from a vast cloud of dust and gas (nebula). About 5 billion years ago, the nebula began to gravitationally contract, began to rotate and flattened. Eventually, the Sun ignited (fusion) and the newly formed planets began to differentiate - heavier elements and chemical components sank to the cen ...
Part IV: Plate Tectonics, Topography and Ecology Due: 5/23 1. What
... They are currents of magma circulating underneath Earth’s crust. Hot, dense magma rises to the surface and cooler, more dense, magma sinks in a circular pattern. 6. How do convection currents affect Earth’s crust? As convection currents move molten material sideways, large portions of the crust, cal ...
... They are currents of magma circulating underneath Earth’s crust. Hot, dense magma rises to the surface and cooler, more dense, magma sinks in a circular pattern. 6. How do convection currents affect Earth’s crust? As convection currents move molten material sideways, large portions of the crust, cal ...
What is Earth Science
... Layers of the Earth Layers Crust o Very thin outer layer (5 - 35 km) o Two kinds Continental crust Light in color and weight (granitic) Averages ~35 km thick Oceanic crust Dark in color and more dense (basaltic) Usually ~7 km thick Mantle o Thickest layer (2870 km) o Directly under t ...
... Layers of the Earth Layers Crust o Very thin outer layer (5 - 35 km) o Two kinds Continental crust Light in color and weight (granitic) Averages ~35 km thick Oceanic crust Dark in color and more dense (basaltic) Usually ~7 km thick Mantle o Thickest layer (2870 km) o Directly under t ...
Activity 2A- Plates and Gates
... Earth was slowly contracting and as this occurred, ocean floors became dry land, and dry land in turn became ocean floor. In the 1960s, the theory of plate tectonics began a change in the thinking about our Earth. The idea that the Earth's surface is continually moving has profoundly changed the way ...
... Earth was slowly contracting and as this occurred, ocean floors became dry land, and dry land in turn became ocean floor. In the 1960s, the theory of plate tectonics began a change in the thinking about our Earth. The idea that the Earth's surface is continually moving has profoundly changed the way ...
Theory of Plate Tectonics
... 3 - What is the name for a chain of volcanoes that come out of oceanic crust that have the same plate boundary as question #2. 4 - What common type of plate boundary is found near the above ...
... 3 - What is the name for a chain of volcanoes that come out of oceanic crust that have the same plate boundary as question #2. 4 - What common type of plate boundary is found near the above ...
PS review Earth
... crust. Oceanic plate melts, rising magma pushes up crust above it forming a mountain. • Example: Andes Mountains • Collision of continental plates also can form mountains. Example: Himalayas ...
... crust. Oceanic plate melts, rising magma pushes up crust above it forming a mountain. • Example: Andes Mountains • Collision of continental plates also can form mountains. Example: Himalayas ...
Lecture 1.
... spreading helps explain continental drift in the theory of plate tectonics. When oceanic plates diverge, tensional stress causes fractures to occur in the lithosphere. Basaltic magma rises up the fractures and cools on the ocean floor to form new sea floor. Older rocks will be found further away fro ...
... spreading helps explain continental drift in the theory of plate tectonics. When oceanic plates diverge, tensional stress causes fractures to occur in the lithosphere. Basaltic magma rises up the fractures and cools on the ocean floor to form new sea floor. Older rocks will be found further away fro ...
The plates consist of an outer layer of the Earth, the lithosphere
... As more and more of the seafloor was mapped during the 1950s, the magnetic variations turned out not to be random or isolated occurrences, but instead revealed recognizable patterns. When these magnetic patterns were mapped over a wide region, the ocean floor showed a zebra-like pattern. Alternating ...
... As more and more of the seafloor was mapped during the 1950s, the magnetic variations turned out not to be random or isolated occurrences, but instead revealed recognizable patterns. When these magnetic patterns were mapped over a wide region, the ocean floor showed a zebra-like pattern. Alternating ...
Plate Tectonics _2010
... • Where lithospheric plates are moving towards one another at their boundary, lithospheric area must be consumed. This is accomplished by subduction or thickening and delamination. ...
... • Where lithospheric plates are moving towards one another at their boundary, lithospheric area must be consumed. This is accomplished by subduction or thickening and delamination. ...
The Mantle
... The Earth’s crust is like the skin of an apple. It is very thin compared to the other three layers. The crust makes up 1% of the Earth and is called the “rock and mineral” layer. The crust of the Earth is broken into many pieces called plates. At the junction of these plates some interesting ...
... The Earth’s crust is like the skin of an apple. It is very thin compared to the other three layers. The crust makes up 1% of the Earth and is called the “rock and mineral” layer. The crust of the Earth is broken into many pieces called plates. At the junction of these plates some interesting ...
ALFRED WEGENER THEORY OF CONTINENTAL DRIFT
... the flame. We are not able to see them, however, without special help like the light from a projector. Convection is the transfer of heat by the MOVEMENT of the heated parts of a liquid or gas. ...
... the flame. We are not able to see them, however, without special help like the light from a projector. Convection is the transfer of heat by the MOVEMENT of the heated parts of a liquid or gas. ...
Plate Tectonics Unit - Spring
... cover its surface and fit together at their edges. Plate Boundaries = the places where tectonic plates fit together (at the edges). There are three types of boundaries that are named for how the plates interact with one another. ...
... cover its surface and fit together at their edges. Plate Boundaries = the places where tectonic plates fit together (at the edges). There are three types of boundaries that are named for how the plates interact with one another. ...
Plate Tectonics
... The Great Rift Valley in eastern Africa is becoming a divergent plate boundary. Iceland is also. ...
... The Great Rift Valley in eastern Africa is becoming a divergent plate boundary. Iceland is also. ...
Uniformitarianism and earth layers
... physical processes occurring today are the same as in the past, and will continue into the future ...
... physical processes occurring today are the same as in the past, and will continue into the future ...
Inner Structure of the Earth 3. Mantle
... with a continental plate, the heavier oceanic plate will slide under the lighter, continental plate. Results: volcanic mountain building and earthquakes. ...
... with a continental plate, the heavier oceanic plate will slide under the lighter, continental plate. Results: volcanic mountain building and earthquakes. ...
File
... 1. Divergent boundaries -- where new crust is generated as the plates pull away from each other. 2. Convergent boundaries -- where crust is destroyed as one plate dives under another. 3. Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each ...
... 1. Divergent boundaries -- where new crust is generated as the plates pull away from each other. 2. Convergent boundaries -- where crust is destroyed as one plate dives under another. 3. Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each ...
Name: TRUE/FALSE please answer the following statements by
... TRUE/FALSE please answer the following statements by marking T for true or F for false in the blank. 1.____ Scientists have shown a correlation (relationship) between hurricanes and earthquakes. 2.____ Earthquakes occur almost everyday in Washington State. 3.____ The earth’s oceanic crust can be as ...
... TRUE/FALSE please answer the following statements by marking T for true or F for false in the blank. 1.____ Scientists have shown a correlation (relationship) between hurricanes and earthquakes. 2.____ Earthquakes occur almost everyday in Washington State. 3.____ The earth’s oceanic crust can be as ...
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.