The sea floor spreads apart at divergent boundaries.
... In the ocean, divergent boundaries are also called spreading centers. Mid-ocean ridges mark these sites where the ocean floor is spreading apart. As the ridges continue to widen, a gap called a rift valley forms. Here molten material rises to build new crust. ...
... In the ocean, divergent boundaries are also called spreading centers. Mid-ocean ridges mark these sites where the ocean floor is spreading apart. As the ridges continue to widen, a gap called a rift valley forms. Here molten material rises to build new crust. ...
“The “plate” model for the genesis of melting anomalies”
... It is common to hear, when debates are held regarding the origin of melting anomalies, “But what alternatives are there to the plume hypothesis?” This question may even be posed immediately after alternatives have just been described. The objective of this article is to lay out the alternative known ...
... It is common to hear, when debates are held regarding the origin of melting anomalies, “But what alternatives are there to the plume hypothesis?” This question may even be posed immediately after alternatives have just been described. The objective of this article is to lay out the alternative known ...
BAESI: Earth and Life Through Time
... process driving the movement of plates. Earth is hotter (due to radioactive decay fission) in some portions of the deep mantle than in others. This causes the formation of convection cells that drag along overlying lithospheric plates acts like conveyor belts. Think about a container full of b ...
... process driving the movement of plates. Earth is hotter (due to radioactive decay fission) in some portions of the deep mantle than in others. This causes the formation of convection cells that drag along overlying lithospheric plates acts like conveyor belts. Think about a container full of b ...
Rock Identification Lab
... type of metamorphism occurs during the processes associated with mountain building. Mountains are formed when two plates collide. This type of collision produces a tremendous amount of heat and pressure. This heat and pressure causes distortion and the rearrangement of minerals in a rock. As a resul ...
... type of metamorphism occurs during the processes associated with mountain building. Mountains are formed when two plates collide. This type of collision produces a tremendous amount of heat and pressure. This heat and pressure causes distortion and the rearrangement of minerals in a rock. As a resul ...
Identifying tectonic plates and their movements
... • Teacher Note: The volcanic mountain Mauna Kea (mou'n ka ˉ' ) in Hawaii is actually taller than Everest, but only a small part of the mountain is visible above the water and, consequently, it is not commonly referred to as taller than Everest. e ...
... • Teacher Note: The volcanic mountain Mauna Kea (mou'n ka ˉ' ) in Hawaii is actually taller than Everest, but only a small part of the mountain is visible above the water and, consequently, it is not commonly referred to as taller than Everest. e ...
Earth Science Prerequisites to High School Content Expectations
... Early evidence for the movement of continents was based on the similarities of coastlines, geology, faunal distributions, and paleoclimatelogical data across the Atlantic and Indian Oceans. In the 1960s, additional evidence from marine geophysical surveys, seismology, volcanology, and paleomagnetism ...
... Early evidence for the movement of continents was based on the similarities of coastlines, geology, faunal distributions, and paleoclimatelogical data across the Atlantic and Indian Oceans. In the 1960s, additional evidence from marine geophysical surveys, seismology, volcanology, and paleomagnetism ...
Chapter 3 Notes
... mass; 5-8 km thick beneath the oceans; 20-70 km thick beneath the continents • Mantle=layer beneath the ________; makes up 64% of mass of Earth; 2,900 km thick; made mostly of rocks of medium density • ___________=innermost layer; composed of denser elements; has radius of ~3,400 km – The Structure ...
... mass; 5-8 km thick beneath the oceans; 20-70 km thick beneath the continents • Mantle=layer beneath the ________; makes up 64% of mass of Earth; 2,900 km thick; made mostly of rocks of medium density • ___________=innermost layer; composed of denser elements; has radius of ~3,400 km – The Structure ...
Earthquakes - Fair Lawn Public Schools
... at a given distance from an earthquake to determine the magnitude of the earthquake. • 2. The moment magnitude scale measures the total amount of energy released by an earthquake. • 3. The Modified Mercalli scale measures the earthquake intensity based on descriptions of the earthquake’s effects on ...
... at a given distance from an earthquake to determine the magnitude of the earthquake. • 2. The moment magnitude scale measures the total amount of energy released by an earthquake. • 3. The Modified Mercalli scale measures the earthquake intensity based on descriptions of the earthquake’s effects on ...
Nicole Harb
... findings of this study indicate that hyaloclasts form predominantly by coolingcontraction granulation of pillow lava rinds while crystalline basalt clasts are derived from the fragmentation of pillows along concentric and radial cooling joints. Hyaloclastite breccia sediment is transported predomina ...
... findings of this study indicate that hyaloclasts form predominantly by coolingcontraction granulation of pillow lava rinds while crystalline basalt clasts are derived from the fragmentation of pillows along concentric and radial cooling joints. Hyaloclastite breccia sediment is transported predomina ...
Section 1 Review
... surface wave a seismic wave that travels along the surface of a medium and that has a stron ger effect near the surface of the medium than it has in the interior S wave a secondary wave, or shear wave; a seis mic wave that causes particles of rock to move in a side-to-side direction perpendicular ...
... surface wave a seismic wave that travels along the surface of a medium and that has a stron ger effect near the surface of the medium than it has in the interior S wave a secondary wave, or shear wave; a seis mic wave that causes particles of rock to move in a side-to-side direction perpendicular ...
Bill Nye Earthquake Video Notes
... When it starts to shake It starts to roll and jerk me around I hope that this building doesn't fall down Rumble, rumble An earthquake sure can make you humble I wonder what's happening with the Earth's crust Rawr, rawr ...
... When it starts to shake It starts to roll and jerk me around I hope that this building doesn't fall down Rumble, rumble An earthquake sure can make you humble I wonder what's happening with the Earth's crust Rawr, rawr ...
Rocks WebQuest!
... Basalt is formed from lava erupting onto the Earth’s surface. It cools relatively quickly; only small crystals form which are not easy to see. ...
... Basalt is formed from lava erupting onto the Earth’s surface. It cools relatively quickly; only small crystals form which are not easy to see. ...
Constructive and Destructive Forces Study Guide
... FILL IN THE BLANKS TO THE STUDY GUIDE- Make flashcards to help you study! I. Earth’s layers: The crust and mantle are divided into sections called plates, which “float” on the softer rock of the ___________. These plate movements cause many changes in Earth’s surface. Crust – surface layer of the ...
... FILL IN THE BLANKS TO THE STUDY GUIDE- Make flashcards to help you study! I. Earth’s layers: The crust and mantle are divided into sections called plates, which “float” on the softer rock of the ___________. These plate movements cause many changes in Earth’s surface. Crust – surface layer of the ...
Document
... tectonics. The theory has been around for quite some time, but as you will discover in your exploration, it was ignored because the mechanism by which this phenomenon occurred could not be explained. So, what is plate tectonics, you ask? In a nutshell, the theory states that all the continents and E ...
... tectonics. The theory has been around for quite some time, but as you will discover in your exploration, it was ignored because the mechanism by which this phenomenon occurred could not be explained. So, what is plate tectonics, you ask? In a nutshell, the theory states that all the continents and E ...
Unit 4 Chapter
... Both the Circum-Pacific and the Eurasian-Melanesian belts are located along convergent plate boundaries. This is evidence that most mountains form as a result of collision between tectonic plates. ...
... Both the Circum-Pacific and the Eurasian-Melanesian belts are located along convergent plate boundaries. This is evidence that most mountains form as a result of collision between tectonic plates. ...
Answer Key - MrTestaScienceClass
... The Australian plate subducted under the Indonesian plate. The strike-slip friction was released. The top plate was dragged down and then snapped backward. 2. Where was the epicenter of the earthquake located? 155 miles from Sumatra 3. Where did most of the earthquake’s energy travel? Toward the Eas ...
... The Australian plate subducted under the Indonesian plate. The strike-slip friction was released. The top plate was dragged down and then snapped backward. 2. Where was the epicenter of the earthquake located? 155 miles from Sumatra 3. Where did most of the earthquake’s energy travel? Toward the Eas ...
11/4/2015 1 Earth: The Active Planet Chapter 11
... Where plates move toward each other, Where plates move away from plates can be pushed upward and each other, molten lava can rise up downward → formation of mountain from below → volcanic activity ranges, some with volcanic activity, earthquakes ...
... Where plates move toward each other, Where plates move away from plates can be pushed upward and each other, molten lava can rise up downward → formation of mountain from below → volcanic activity ranges, some with volcanic activity, earthquakes ...
volcanoes - TeacherXin
... • Lava begins as magma, formed in the asthenosphere. It rises toward the surface, into any cracks in the rock above. The gases form bubbles. When an opening develops in weak rock on the surface, a volcano erupts. • When a volcano erupts, the force of expanding gases pushes magma from the chamber thr ...
... • Lava begins as magma, formed in the asthenosphere. It rises toward the surface, into any cracks in the rock above. The gases form bubbles. When an opening develops in weak rock on the surface, a volcano erupts. • When a volcano erupts, the force of expanding gases pushes magma from the chamber thr ...
Metamorphic Rock by Leila, John*S, and Samantha
... in the earth or on the earth. Metamorphic rock usually appear in big clusters of rock. They can also be different in size shape and color. ...
... in the earth or on the earth. Metamorphic rock usually appear in big clusters of rock. They can also be different in size shape and color. ...
Full Unit Plan (MS Word)
... Science Journal: Analogy- show a picture of a chocolate bar and have students develop an analogy of how the layers are related to the layers of the earth (T). See an example below: 1. Place a Milky Way candy bar on a paper napkin. 2. Cut down the middle of the candy bar. • The chocolate on the top o ...
... Science Journal: Analogy- show a picture of a chocolate bar and have students develop an analogy of how the layers are related to the layers of the earth (T). See an example below: 1. Place a Milky Way candy bar on a paper napkin. 2. Cut down the middle of the candy bar. • The chocolate on the top o ...
East African Rift System Half-Graben Model Eastern branch of
... new oceanic crust and the third arm will be a “failed rift”. The Red Sea and the Gulf of Aden are the two new oceanic arms spreading with a rate of centimetre per year and the rift valley is the remaining third arm which will never open to an ocean. Therefore it is most unlikely that East Africa wil ...
... new oceanic crust and the third arm will be a “failed rift”. The Red Sea and the Gulf of Aden are the two new oceanic arms spreading with a rate of centimetre per year and the rift valley is the remaining third arm which will never open to an ocean. Therefore it is most unlikely that East Africa wil ...
File
... Convergence involving oceanic plates creates subduction zones, and the magma generated is forced upward through the overlying plate and forms volcanoes when it reaches the surface. The volcanoes associated with convergent plate boundaries form two major ...
... Convergence involving oceanic plates creates subduction zones, and the magma generated is forced upward through the overlying plate and forms volcanoes when it reaches the surface. The volcanoes associated with convergent plate boundaries form two major ...
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.