What causes Earthquakes? Earthquake Tip 1 Learning
... pressure gradients between the Crust and the Core, like the convective flow of water when heated in a beaker (Figure 2). The energy for the above circulations is derived from the heat produced from the incessant decay of radioactive elements in the rocks throughout the Earth’s interior. These convec ...
... pressure gradients between the Crust and the Core, like the convective flow of water when heated in a beaker (Figure 2). The energy for the above circulations is derived from the heat produced from the incessant decay of radioactive elements in the rocks throughout the Earth’s interior. These convec ...
Chapter 11
... postulated that all landmasses were united in one supercontinent approximately 225 million years ago, during the Triassic period. The fact that spreading ridges and subduction zones are areas of earthquake and volcanic activity provides further evidence for plate tectonics, which by 1968 had become ...
... postulated that all landmasses were united in one supercontinent approximately 225 million years ago, during the Triassic period. The fact that spreading ridges and subduction zones are areas of earthquake and volcanic activity provides further evidence for plate tectonics, which by 1968 had become ...
Ch 9 ES Website-Coon - Sonoma Valley High School
... exists in the form of several mountain belts that end at one coastline, only to reappear on a landmass across the ocean. ...
... exists in the form of several mountain belts that end at one coastline, only to reappear on a landmass across the ocean. ...
Chapter 3
... Plate Boundaries • Convergent Plate Boundaries – Lithospheric plates move toward each other – Higher density oceanic crust overridden by low density continental crust – Subduction zone forms and produces a trench – Subduction of older oceanic crust balances the spreading seafloor equation – Subduct ...
... Plate Boundaries • Convergent Plate Boundaries – Lithospheric plates move toward each other – Higher density oceanic crust overridden by low density continental crust – Subduction zone forms and produces a trench – Subduction of older oceanic crust balances the spreading seafloor equation – Subduct ...
igneous lab 1: volcanic rocks and textures
... chunks, and is referred to as aa. Examine the samples of pahoehoe and aa basalt and familiarize yourself with their appearance. Sketch these flow-top features. Pahoehoe ...
... chunks, and is referred to as aa. Examine the samples of pahoehoe and aa basalt and familiarize yourself with their appearance. Sketch these flow-top features. Pahoehoe ...
Quiz 4 material 104
... Earth model?? For example, in the contracting Earth model all features on Earth would be approximately the same age; but when you read on the age of the ocean floor you will see that the age of oceanic crust varies, and that oceanic crust is much younger than continental crust (also see Figure 4.7). ...
... Earth model?? For example, in the contracting Earth model all features on Earth would be approximately the same age; but when you read on the age of the ocean floor you will see that the age of oceanic crust varies, and that oceanic crust is much younger than continental crust (also see Figure 4.7). ...
Document
... I. Earth’s Interior A. Exploring Inside Earth—throughout history, Earth’s surface has been lifted up, pushed down, bent and broken. 1. Geologists have used 2 types of evidence to learn about Earth’s interior. They use direct evidence from rocks and indirect evidence from seismic waves. a. Rock sampl ...
... I. Earth’s Interior A. Exploring Inside Earth—throughout history, Earth’s surface has been lifted up, pushed down, bent and broken. 1. Geologists have used 2 types of evidence to learn about Earth’s interior. They use direct evidence from rocks and indirect evidence from seismic waves. a. Rock sampl ...
continental drift and plate tectonics
... mountain ranges have a similar sequence of type of rock and age on both sides of the Atlantic Ocean, suggesting they were once part of the same mountain ...
... mountain ranges have a similar sequence of type of rock and age on both sides of the Atlantic Ocean, suggesting they were once part of the same mountain ...
Plate Tectonics
... 7. subduction- the process by which one tectonic plate sinks below another, returning to the mantle, where the rock is re-melted. Subduction takes place at convergent plate boundaries. Oceanic crust, which is denser, will always subduct under the less dense continental crust. 8. tectonic plates- lar ...
... 7. subduction- the process by which one tectonic plate sinks below another, returning to the mantle, where the rock is re-melted. Subduction takes place at convergent plate boundaries. Oceanic crust, which is denser, will always subduct under the less dense continental crust. 8. tectonic plates- lar ...
(with Death Valley) Geoscience 10: Geology of The National Parks
... Iron core, mantle with silica added to iron, ocean crust with more silica, continental crust with still more silica (way more complex than this, but this is a start)--going up, each layer less dense and floats on layers below; Core has solid inner part (higher pressure squeezes to solid) and liquid ...
... Iron core, mantle with silica added to iron, ocean crust with more silica, continental crust with still more silica (way more complex than this, but this is a start)--going up, each layer less dense and floats on layers below; Core has solid inner part (higher pressure squeezes to solid) and liquid ...
Chapter 17 Plate Tectonics Notes
... • Magma gets pushed out of the mid-ocean ridge (long mountain chain). • The magma spreads out along each side. It cools and hardens into rock (oceanic crust). • More lava forms at the mid-ocean ridge, pushes the older stuff outward. • The result? – Oceanic crust is young in the middle and old on the ...
... • Magma gets pushed out of the mid-ocean ridge (long mountain chain). • The magma spreads out along each side. It cools and hardens into rock (oceanic crust). • More lava forms at the mid-ocean ridge, pushes the older stuff outward. • The result? – Oceanic crust is young in the middle and old on the ...
Continental Drift
... • Magma gets pushed out of the mid-ocean ridge (long mountain chain). • The magma spreads out along each side. It cools and hardens into rock (oceanic crust). • More lava forms at the mid-ocean ridge, pushes the older stuff outward. • The result? – Oceanic crust is young in the middle and old on ...
... • Magma gets pushed out of the mid-ocean ridge (long mountain chain). • The magma spreads out along each side. It cools and hardens into rock (oceanic crust). • More lava forms at the mid-ocean ridge, pushes the older stuff outward. • The result? – Oceanic crust is young in the middle and old on ...
Volcanoes - Helena High School
... • An active volcano is one that is currently erupting or has erupted recently (in geological terms). • A dormant volcano is one that has not erupted lately but is considered likely to do so in the future. ...
... • An active volcano is one that is currently erupting or has erupted recently (in geological terms). • A dormant volcano is one that has not erupted lately but is considered likely to do so in the future. ...
"Inside Earth" Chapter 1 Section 1
... ** “Just as a bar magnet is surrounded by its own magnetic field, Earth’s magnetic field surrounds the planet”. P. 13 Section 1 Vocab: seismic waves, pressure, crust, basalt, granite, mantle, lithosphere, asthenosphere, outer core, inner core Summary: (see p. 38) * Geologists have two main types of ...
... ** “Just as a bar magnet is surrounded by its own magnetic field, Earth’s magnetic field surrounds the planet”. P. 13 Section 1 Vocab: seismic waves, pressure, crust, basalt, granite, mantle, lithosphere, asthenosphere, outer core, inner core Summary: (see p. 38) * Geologists have two main types of ...
Word format
... C. lithosphere, asthenosphere, lower mantle, outer core, inner core D. inner core, mantle, lithosphere, asthenosphere E. inner core, outer core, lower mantle, upper mantle, lithosphere ...
... C. lithosphere, asthenosphere, lower mantle, outer core, inner core D. inner core, mantle, lithosphere, asthenosphere E. inner core, outer core, lower mantle, upper mantle, lithosphere ...
Plate Tectonics
... What Causes the Plates to Move? • Convection- hot magma rises, cool magma sinks (like a lava lamp) ...
... What Causes the Plates to Move? • Convection- hot magma rises, cool magma sinks (like a lava lamp) ...
Mariana Ocean Trench case study
... Location: The Mariana trench is located in the Pacific Ocean. It forms the boundary between two tectonic plates. Formation: The Pacific Plate (Denser), is subducted (thrust) beneath the Mariana Plate that lies to the west. Both plates are Oceanic plates. They are found along destructive margins. As ...
... Location: The Mariana trench is located in the Pacific Ocean. It forms the boundary between two tectonic plates. Formation: The Pacific Plate (Denser), is subducted (thrust) beneath the Mariana Plate that lies to the west. Both plates are Oceanic plates. They are found along destructive margins. As ...
Theory of Plate Tectonics
... solidifies, adding to the edges of the sideways-moving plates. As magma piles up along the crack, a long chain of mountains forms gradually on the ocean floor. This chain is called a Mid-ocean ridge. ...
... solidifies, adding to the edges of the sideways-moving plates. As magma piles up along the crack, a long chain of mountains forms gradually on the ocean floor. This chain is called a Mid-ocean ridge. ...
The Structure of The Earth – Revision Pack (C2) The Lithosphere
... new evidence about the sea floor spreading was found. This led to research which eventually made Wegener’s theory more widely accepted. Magma and Rocks: ...
... new evidence about the sea floor spreading was found. This led to research which eventually made Wegener’s theory more widely accepted. Magma and Rocks: ...
Document
... • Lithosphere – The rigid outer shell of the earth, 70 to 125 or more kilometers thick. • Asthenosphere – A region of the earth’s outer shell beneath the lithosphere. The asthenosphere is of indeterminate thickness and behaves plastically. • Fig 1.8 ...
... • Lithosphere – The rigid outer shell of the earth, 70 to 125 or more kilometers thick. • Asthenosphere – A region of the earth’s outer shell beneath the lithosphere. The asthenosphere is of indeterminate thickness and behaves plastically. • Fig 1.8 ...
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.