Inside the Earth
... • 2240 km thick (1400 mi) • 6093 C (11,000 ˚ F) • Movement is source of Earth’s magnetic field ...
... • 2240 km thick (1400 mi) • 6093 C (11,000 ˚ F) • Movement is source of Earth’s magnetic field ...
Petrography of Basaltic Rocks Field Relations
... Origin of Local Continental Basalt Fields • Hot magma from the mantle intrudes rifting crust • Accumulation of basalt at depth melts silicic crust • Silicic melt buoyantly rises to shallow chambers • Shallow chambers erupt to produce evolved pyroclastic deposits ...
... Origin of Local Continental Basalt Fields • Hot magma from the mantle intrudes rifting crust • Accumulation of basalt at depth melts silicic crust • Silicic melt buoyantly rises to shallow chambers • Shallow chambers erupt to produce evolved pyroclastic deposits ...
Slide 1
... small. They are usually dark in color. – Sedimentary- made from weathered or broken rocks, found in oceans, lakes, streams, deserts • Clastic- broken pieces held by cement • Chemical- chemical reactions, like evaporation or acid rain • Organic- ex. coral ...
... small. They are usually dark in color. – Sedimentary- made from weathered or broken rocks, found in oceans, lakes, streams, deserts • Clastic- broken pieces held by cement • Chemical- chemical reactions, like evaporation or acid rain • Organic- ex. coral ...
Integrated Science Chapter 19 Name
... X. the outermost and thinnest layer of Earth Y. change in the physical form or chemical composition of rock materials exposed at Earth’s surface Z. a crack in the Earth created when rocks on either side of a break ...
... X. the outermost and thinnest layer of Earth Y. change in the physical form or chemical composition of rock materials exposed at Earth’s surface Z. a crack in the Earth created when rocks on either side of a break ...
Section Quiz
... Directions: Write the letter of the correct answer in each blank. _____ 6. The atmosphere surrounding Earth provides oxygen for a. the core. c. people and animals. b. magma. d. the mantle. _____ 7. What is a landform that usually rises more than 2,000 feet (610 meters) above sea level? a. a plateau ...
... Directions: Write the letter of the correct answer in each blank. _____ 6. The atmosphere surrounding Earth provides oxygen for a. the core. c. people and animals. b. magma. d. the mantle. _____ 7. What is a landform that usually rises more than 2,000 feet (610 meters) above sea level? a. a plateau ...
Plate Tectonics Reading Passage
... oceanic ridge. As we learned before, the mantle is found directly underneath crustal plates. Since the mantle is made of very hot material, we find “convection currents” within this layer of the earth. Hot material at the deepest part of the mantle rises, then cools on ...
... oceanic ridge. As we learned before, the mantle is found directly underneath crustal plates. Since the mantle is made of very hot material, we find “convection currents” within this layer of the earth. Hot material at the deepest part of the mantle rises, then cools on ...
Slide 1
... of the ocean and the similarity of geological features on opposite sides of the Atlantic ocean. 2. Match-up of glacier markings of the Southern Continents. 3. Symmetric location of alternating magnetic anomalies parallel with the mid-ocean ridge. 4. Volcanic hotspots and island chains. ...
... of the ocean and the similarity of geological features on opposite sides of the Atlantic ocean. 2. Match-up of glacier markings of the Southern Continents. 3. Symmetric location of alternating magnetic anomalies parallel with the mid-ocean ridge. 4. Volcanic hotspots and island chains. ...
Plate Tectonics Quiz Study Guide
... 12. What event provides scientist the waves to study the interior of the earth? ...
... 12. What event provides scientist the waves to study the interior of the earth? ...
INTERNAL STRUCTURE OF THE EARTH AND PLATE TECTONICS
... • Liquid similar in composition to inner core • Densities of inner and outer cores about same =10.7 g/cm 3 Earth's average density; ~5.5 g/cm3 ...
... • Liquid similar in composition to inner core • Densities of inner and outer cores about same =10.7 g/cm 3 Earth's average density; ~5.5 g/cm3 ...
Science study guide for Ch
... 14. At converging boundaries, two plate move toward each other. 15. The only layer of the Earth that is liquid is called outer core. 16. When one plate rides up over another and push the other under the surface, it is called subduction. 17. The inner core is under such high pressure that it is solid ...
... 14. At converging boundaries, two plate move toward each other. 15. The only layer of the Earth that is liquid is called outer core. 16. When one plate rides up over another and push the other under the surface, it is called subduction. 17. The inner core is under such high pressure that it is solid ...
ESC101 Ch 4 Plate Tectonics
... – Friction is overcome, the block slips and pent up energy releases with a huge “snap” – Focus • Where earthquake begins ...
... – Friction is overcome, the block slips and pent up energy releases with a huge “snap” – Focus • Where earthquake begins ...
Plate Tectonic Test Review Answers!
... earth’s crust is broken into large moving pieces called plates to which the continents are attached. Along with the evidence that was used to support Continental Drift, new evidence such as sea floor spreading, earthquakes and volcanoes, and actual recorded movement all help support Plate Tectonics. ...
... earth’s crust is broken into large moving pieces called plates to which the continents are attached. Along with the evidence that was used to support Continental Drift, new evidence such as sea floor spreading, earthquakes and volcanoes, and actual recorded movement all help support Plate Tectonics. ...
Earth`s layers
... Plate tectonics explains how the plates move around causing changes to the Earth’s surface. Other changes in the Earth’s surface come from glaciers, wind, water and meteors. ...
... Plate tectonics explains how the plates move around causing changes to the Earth’s surface. Other changes in the Earth’s surface come from glaciers, wind, water and meteors. ...
Earth Science Vocabulary
... 22. Plate Boundary – the line where the edges of the plates meet 23. Plate Tectonics – the theory that Earth's crust and upper mantle are broken into plates that float and move around on a plastic like layer of the mantle 24. Radiation – the transfer of energy of electromagnetic waves 25. Rift Valle ...
... 22. Plate Boundary – the line where the edges of the plates meet 23. Plate Tectonics – the theory that Earth's crust and upper mantle are broken into plates that float and move around on a plastic like layer of the mantle 24. Radiation – the transfer of energy of electromagnetic waves 25. Rift Valle ...
Earth`s internal structure
... lava and magma). It is the only region of the planet that we can investigate directly by boring into it and taking samples. In continental areas, the crust's average thickness is 36 km but may be anything from 10 km to 80 km depending on the last movement of the tectonic plates in that area. The cru ...
... lava and magma). It is the only region of the planet that we can investigate directly by boring into it and taking samples. In continental areas, the crust's average thickness is 36 km but may be anything from 10 km to 80 km depending on the last movement of the tectonic plates in that area. The cru ...
Study Guide Answers
... Luster, Color, Streak, Hardness Supercontinent, when all continents were one ...
... Luster, Color, Streak, Hardness Supercontinent, when all continents were one ...
The Earth The Layers of the Earth • The Earth is divided into ______
... puzzle, especially South America and Africa. ...
... puzzle, especially South America and Africa. ...
Topic 6 Earth`s Internal Structure and Tectonic Process Geography
... Then in the 1960's Harry Hess and Robert Dietz propose theory of sea floor spreading Based on existence of interconnected ridges, called mid-ocean ridges result of crust being pulled apart caused by convective currents in the asthenosphere extrusion of lava creates new sea floor ...
... Then in the 1960's Harry Hess and Robert Dietz propose theory of sea floor spreading Based on existence of interconnected ridges, called mid-ocean ridges result of crust being pulled apart caused by convective currents in the asthenosphere extrusion of lava creates new sea floor ...
Igneous Rocks
... • Absence of crystals (glassy) indicates extremely rapid cooling (quenching). • Absence of crystals (frothy) indicates extremely rapid cooling with high dissolved gas content. • Small crystals indicate rapid cooling. • Large crystals indicate slow cooling. • Pegmatitic texture indicates slow cooling ...
... • Absence of crystals (glassy) indicates extremely rapid cooling (quenching). • Absence of crystals (frothy) indicates extremely rapid cooling with high dissolved gas content. • Small crystals indicate rapid cooling. • Large crystals indicate slow cooling. • Pegmatitic texture indicates slow cooling ...
31_Geology
... Upper layer of mantle contains convection currents that break overlaying crust into a mosaic of tectonic plates. Slide slowly across earth’s surface. - Ocean basins form where continents crack and pull apart. - Magma forced up through cracks in oceanic crust form mid-oceanic ridges. ...
... Upper layer of mantle contains convection currents that break overlaying crust into a mosaic of tectonic plates. Slide slowly across earth’s surface. - Ocean basins form where continents crack and pull apart. - Magma forced up through cracks in oceanic crust form mid-oceanic ridges. ...
Name _____ Hour ______ Score Plate Tectonics Unit Objectives
... Identify the different layers of the Earth and their compositions Describe important milestones in geologic time eras Describe the movement of the Earth’s plates over geologic time Explain Alfred Wegener’s continental drift hypothesis and why it was not accepted in his time Explain the the ...
... Identify the different layers of the Earth and their compositions Describe important milestones in geologic time eras Describe the movement of the Earth’s plates over geologic time Explain Alfred Wegener’s continental drift hypothesis and why it was not accepted in his time Explain the the ...
Large igneous province
A large igneous province (LIP) is an extremely large accumulation of igneous rocks, including liquid rock (intrusive) or volcanic rock formations (extrusive), when hot magma extrudes from inside the Earth and flows out. The source of many or all LIPs is variously attributed to mantle plumes or to processes associated with plate tectonics. Types of LIPs can include large volcanic provinces (LVP), created through flood basalt and large plutonic provinces (LPP). Eleven distinct flood basalt episodes occurred in the past 250 million years, creating volcanic provinces, which coincided with mass extinctions in prehistoric times. Formation depends on a range of factors, such as continental configuration, latitude, volume, rate, duration of eruption, style and setting (continental vs. oceanic), the preexisting climate state, and the biota resilience to change.