Layers of the Earth
... • The crust is the outermost layer. It ranges from 5- 60 km in depth. It is divided up into the oceanic crust (which is the thinnest crust) and the continental crust (which is the thickest). ...
... • The crust is the outermost layer. It ranges from 5- 60 km in depth. It is divided up into the oceanic crust (which is the thinnest crust) and the continental crust (which is the thickest). ...
Take Home Test #11 Complete the following on your own paper. Do
... 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 ...
Earth Science Chapter 20: Mountain Building Chapter Overview
... As peaks are eroded, mass decreases, and the roots of the mountains become smaller. A balance between erosion and the decrease on the size of the root will continue for hundreds of millions of years until both the mountains and their roots disappear. This slow process of the crust’s rising as the re ...
... As peaks are eroded, mass decreases, and the roots of the mountains become smaller. A balance between erosion and the decrease on the size of the root will continue for hundreds of millions of years until both the mountains and their roots disappear. This slow process of the crust’s rising as the re ...
Chapter 8 study guide: Plate Tectonics
... 10. What causes earthquakes? 11. (True/False) The earth’s magnetic polarity is constant. 12. Based on the diagram at the bottom of page 174, do you think that the new ocean floor is created at the same rate at all times? Explain. 13. What is the “ mid-oceanic ridge”? What happens there? ...
... 10. What causes earthquakes? 11. (True/False) The earth’s magnetic polarity is constant. 12. Based on the diagram at the bottom of page 174, do you think that the new ocean floor is created at the same rate at all times? Explain. 13. What is the “ mid-oceanic ridge”? What happens there? ...
Chapter 7: Circulation of the Solid Earth: Plate Tectonics – ppt
... The solid part of the earth system includes processes, just like the atmosphere and oceans. However, the time scales for processes in the solid earth are much longer. As a result, solid earth processes are important for climate over much longer time scales (e.g. millions of years). ...
... The solid part of the earth system includes processes, just like the atmosphere and oceans. However, the time scales for processes in the solid earth are much longer. As a result, solid earth processes are important for climate over much longer time scales (e.g. millions of years). ...
Plate Tectonic Vocabulary Chapter 10 Pages 239-260
... the asthenosphere is called __________________________________________. 43. Compared to speed of plates that are not subducting, plates that are subducting ...
... the asthenosphere is called __________________________________________. 43. Compared to speed of plates that are not subducting, plates that are subducting ...
plate tectonics - Ector County ISD.
... tectonics to the formation of crustal features; • TEKS 6.10C identify the major tectonic plates • TEKS 6.10D describe how plate tectonics causes major geological events such as ocean basins, earthquakes, volcanic eruptions, and mountain building ...
... tectonics to the formation of crustal features; • TEKS 6.10C identify the major tectonic plates • TEKS 6.10D describe how plate tectonics causes major geological events such as ocean basins, earthquakes, volcanic eruptions, and mountain building ...
Structure of the Earth
... There is more pressure than the mantle but less pressure than the inner core ...
... There is more pressure than the mantle but less pressure than the inner core ...
Sea Floor Spreading
... Water becomes heated to ~350°C (660°F) Water picks up chemicals along path through rock Chemicals react with each other and some may be precipitated ...
... Water becomes heated to ~350°C (660°F) Water picks up chemicals along path through rock Chemicals react with each other and some may be precipitated ...
Day 69 Pangaea and boundaries review
... • When the sea floor spreads, it splits, thus creating a way for the mantle to rise through the crust, creating new sea floor. • Example: Mid-Atlantic Ridge. ...
... • When the sea floor spreads, it splits, thus creating a way for the mantle to rise through the crust, creating new sea floor. • Example: Mid-Atlantic Ridge. ...
Plate Boundaries
... (2) Trenches occur where the convection cells descend back into Earth’s interior ...
... (2) Trenches occur where the convection cells descend back into Earth’s interior ...
File
... 8. Dividing the Earth into layers based on chemical composition results in three layers--crust, mantle, core--with pronounced differences in chemical composition (or mineral makeup) of these layers. In contrast, dividing the Earth into layers based on how the rocks respond to increased temperature a ...
... 8. Dividing the Earth into layers based on chemical composition results in three layers--crust, mantle, core--with pronounced differences in chemical composition (or mineral makeup) of these layers. In contrast, dividing the Earth into layers based on how the rocks respond to increased temperature a ...
Ch 9 ES Website-Coon - Sonoma Valley High School
... The three main types of boundaries are convergent, ...
... The three main types of boundaries are convergent, ...
Unit 6.2 Notes File
... • When the leading edge of a plate near a ______________________________ _______________ cools it becomes _______________ and eventually begins to _______________ back into the _______________. As this leading edge is _______________ (sinking), it pulls the rest of the plate behind it downward into ...
... • When the leading edge of a plate near a ______________________________ _______________ cools it becomes _______________ and eventually begins to _______________ back into the _______________. As this leading edge is _______________ (sinking), it pulls the rest of the plate behind it downward into ...
Plate Boundaries Lithospheric plates move as coherent units
... TRANSFORM FAULT BOUNDARIES. Transform fault boundaries are located where plates grind past each other without either generating new lithosphere or consuming old lithosphere. These faults form in the direction of plate movement and were first discovered in association with offsets in oceanic. Althoug ...
... TRANSFORM FAULT BOUNDARIES. Transform fault boundaries are located where plates grind past each other without either generating new lithosphere or consuming old lithosphere. These faults form in the direction of plate movement and were first discovered in association with offsets in oceanic. Althoug ...
Unit Test Study Guide: The Restless Earth and Volcanoes
... 5. What type of fault usually occurs because of compression? TE__________________Cs4 6. What kind of force can lead to mountains with sharp, jagged peaks? __________________ 7. What is the area where two tectonic plates meet called? T__________________ECs3 8. What type of boundary is formed when pla ...
... 5. What type of fault usually occurs because of compression? TE__________________Cs4 6. What kind of force can lead to mountains with sharp, jagged peaks? __________________ 7. What is the area where two tectonic plates meet called? T__________________ECs3 8. What type of boundary is formed when pla ...
What is “magnetic reversal?”
... During the early 1960s, seismologists studying earthquake seismic waves detected the layer configuration of the Earth’s crust, mantle, outer and inner core. They found that the crust and the upper most portion of the mantle actually acted together as a single brittle layer. They called this the lith ...
... During the early 1960s, seismologists studying earthquake seismic waves detected the layer configuration of the Earth’s crust, mantle, outer and inner core. They found that the crust and the upper most portion of the mantle actually acted together as a single brittle layer. They called this the lith ...
Changing Earth
... axis of the midocean ridge. 3. The banding pattern of one ocean matches that of others. ...
... axis of the midocean ridge. 3. The banding pattern of one ocean matches that of others. ...
Plate Tectonics
... collide, and spread apart. • Cause of earthquakes, mountains, and volcanoes. ...
... collide, and spread apart. • Cause of earthquakes, mountains, and volcanoes. ...
Plate Tectonics
... Ring of Fire. This is a line of volcanoes that are found along major trenches in that area. As plates collide along convergent boundaries, there is much friction and pressure. Earthquakes often occur. They can be severe. As the plate material is subducted, some of it flows upward and produces volcan ...
... Ring of Fire. This is a line of volcanoes that are found along major trenches in that area. As plates collide along convergent boundaries, there is much friction and pressure. Earthquakes often occur. They can be severe. As the plate material is subducted, some of it flows upward and produces volcan ...
Intro to Plates_Density of Granite_Basalt
... Draw a T chart that compares the thickness and composition of Oceanic and Continental Crust ...
... Draw a T chart that compares the thickness and composition of Oceanic and Continental Crust ...
ES O&A 2-27-15
... Please have a seat. Today’s Objective: Explore multiple interactive websites to see what happens when different types of tectonic plates meet in different ways. Homework: Seafloor Spreading Lab due Wed. Feb. 25th (I will collect this Monday.) Plate Model Movement Lab due Tues. Mar. 3rd ...
... Please have a seat. Today’s Objective: Explore multiple interactive websites to see what happens when different types of tectonic plates meet in different ways. Homework: Seafloor Spreading Lab due Wed. Feb. 25th (I will collect this Monday.) Plate Model Movement Lab due Tues. Mar. 3rd ...
A1992JV57200001
... the low values from the heat flow analysis.5 Plate tectonics originated as a kinematic explanation of how plates moved. Our analysis added a dynamic component by showing that the plates were really the rigid thermal boundary layer on top of a convecting upper mantle. Further work showed that the cre ...
... the low values from the heat flow analysis.5 Plate tectonics originated as a kinematic explanation of how plates moved. Our analysis added a dynamic component by showing that the plates were really the rigid thermal boundary layer on top of a convecting upper mantle. Further work showed that the cre ...
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.