Earth Science Unit 2 Review Worksheet Name Block Circle the letter
... 9. Crust is neither destroyed nor formed along which of the following boundaries? a. Convergent b. Divergent c. Transform d. Magnetic 10. The driving force of tectonic plates are related to convection currents in Earth’s a. Crust b. Mantle c. Inner core d. Outer core 11. Convergent boundaries are cl ...
... 9. Crust is neither destroyed nor formed along which of the following boundaries? a. Convergent b. Divergent c. Transform d. Magnetic 10. The driving force of tectonic plates are related to convection currents in Earth’s a. Crust b. Mantle c. Inner core d. Outer core 11. Convergent boundaries are cl ...
Understanding the Cascadia Subduction Zone
... One way tectonic plates move is for an oceanic plate to sink underneath a continental plate as the two plates converge, called a subduction zone. Subduction zones create the largest earthquakes observed on the earth, such as the frequent earthquakes in Japan and Chile, so understanding these bounda ...
... One way tectonic plates move is for an oceanic plate to sink underneath a continental plate as the two plates converge, called a subduction zone. Subduction zones create the largest earthquakes observed on the earth, such as the frequent earthquakes in Japan and Chile, so understanding these bounda ...
Earth`s Interior and Plate Tectonics
... move about 5 cm a year (the length your fingernail grows) Plates move because of convection currents in the mantle. Hot material moves up and cool material moves down ...
... move about 5 cm a year (the length your fingernail grows) Plates move because of convection currents in the mantle. Hot material moves up and cool material moves down ...
Oceanic Crust
... Oceanic crust: relatively thin, varying from 5 to 8 km (but thinner at Oceanic ridges) yet denser. Has the average composition of basaltic rock (Basalt) that is rich in silica and magnesium. ...
... Oceanic crust: relatively thin, varying from 5 to 8 km (but thinner at Oceanic ridges) yet denser. Has the average composition of basaltic rock (Basalt) that is rich in silica and magnesium. ...
Oceanography Final Exam Review: Answers
... Found on abyssal plain; associated with seafloor spreading Divergent plate boundary; plates moving in 2 opposite directions Volcanic projection on the ocean floor Flat-topped seamount Deep crevice in the ocean floor caused by the subduction of a lithospheric plate ...
... Found on abyssal plain; associated with seafloor spreading Divergent plate boundary; plates moving in 2 opposite directions Volcanic projection on the ocean floor Flat-topped seamount Deep crevice in the ocean floor caused by the subduction of a lithospheric plate ...
Chapter 2, Section 4
... rocks, like toothpaste out of a tube. Some of the magma stays below the seafloor and crystallizes into rock there. All of these new rocks formed by volcanic activity (called igneous rocks), at the seafloor and below, make new oceanic crust. This crust then moves away from the crest of the ridge. In ...
... rocks, like toothpaste out of a tube. Some of the magma stays below the seafloor and crystallizes into rock there. All of these new rocks formed by volcanic activity (called igneous rocks), at the seafloor and below, make new oceanic crust. This crust then moves away from the crest of the ridge. In ...
Techtonic Plates and Boundaries Notes
... Oceanic lithosphere _______________ underneath the continental lithosphere. Oceanic lithosphere _________ and dehydrates as it subsides. The melt ___________ forming ______________. _________________________________________________ o When _______ oceanic plates collide, one runs over the other ...
... Oceanic lithosphere _______________ underneath the continental lithosphere. Oceanic lithosphere _________ and dehydrates as it subsides. The melt ___________ forming ______________. _________________________________________________ o When _______ oceanic plates collide, one runs over the other ...
Ocean-Continent Convergent Plate Boundaries - PAMS
... arthguide.ucsd.edu/eoc/teachers/t_tectonics/p_subduction.html. Remember that the mid-ocean ridge is where hot mantle material upwells in a convection cell. The upwelling mantle melts due to pressure release to form lava. Lava flows at the surface cool rapidly to become basalt, but deeper in the crus ...
... arthguide.ucsd.edu/eoc/teachers/t_tectonics/p_subduction.html. Remember that the mid-ocean ridge is where hot mantle material upwells in a convection cell. The upwelling mantle melts due to pressure release to form lava. Lava flows at the surface cool rapidly to become basalt, but deeper in the crus ...
ch 7 study guide Answers
... 1. What kind of crust makes up tectonic plates? Continental Crust (less dense) and Oceanic Crust (more dense) 2. What did Wegener call the one large landmass when all the continents were together? Pangaea 3. Where does new oceanic lithosphere form (hint: it happens in the ocean)? Mid-Ocean Ridge 4. ...
... 1. What kind of crust makes up tectonic plates? Continental Crust (less dense) and Oceanic Crust (more dense) 2. What did Wegener call the one large landmass when all the continents were together? Pangaea 3. Where does new oceanic lithosphere form (hint: it happens in the ocean)? Mid-Ocean Ridge 4. ...
BC Science 8 - Chapter 11
... underlying magma oozes up into the empty space. (ex. Mid-Atlantic Ridge) An ocean trench is formed when an oceanic plate collides with a continental plate, and the denser oceanic plate is forced to slip underneath the continental plate. (known as subduction) ...
... underlying magma oozes up into the empty space. (ex. Mid-Atlantic Ridge) An ocean trench is formed when an oceanic plate collides with a continental plate, and the denser oceanic plate is forced to slip underneath the continental plate. (known as subduction) ...
INSIDE EARTH: CHAPTER 3
... which marks a diverging plate boundary. Most of this is located underwater, except for places such as Iceland and the Azores Islands in the Atlantic Ocean. ...
... which marks a diverging plate boundary. Most of this is located underwater, except for places such as Iceland and the Azores Islands in the Atlantic Ocean. ...
Chapter 4 - McGraw Hill Higher Education
... The deep oceanic basin floor covers more of Earth’s surface (30%) than the exposed continental land surface (29%) and is an area that can be just as rugged as the continents. There are a variety of features that rise up above the deep-ocean floor ...
... The deep oceanic basin floor covers more of Earth’s surface (30%) than the exposed continental land surface (29%) and is an area that can be just as rugged as the continents. There are a variety of features that rise up above the deep-ocean floor ...
Earth`s Layers FOLDABLE© Question Sheet
... The border between the Outer core and the Inner Core is how many kilometers !!beneath the crust? _____________ 8. The Inner core is under so much pressure it does not move like a liquid, it _____________________________________. !!Write the temperature of the center of the Earth. __________________ ...
... The border between the Outer core and the Inner Core is how many kilometers !!beneath the crust? _____________ 8. The Inner core is under so much pressure it does not move like a liquid, it _____________________________________. !!Write the temperature of the center of the Earth. __________________ ...
EGU2017-5486 - CO Meeting Organizer
... the crust by their composition. Together with crystalline rocks 14 km thick located above the Moho they form the crystalline crust with the thickness 30-35 km which is typical of many continental regions. The formation of eclogites from gabbro in the lower crust was the main cause of crustal subside ...
... the crust by their composition. Together with crystalline rocks 14 km thick located above the Moho they form the crystalline crust with the thickness 30-35 km which is typical of many continental regions. The formation of eclogites from gabbro in the lower crust was the main cause of crustal subside ...
Deep life: Teeming masses of organisms thrive beneath the seafloor
... By some estimates, as much as onethird of the planet’s biomass — the sheer weight of all its living organisms — is buried beneath the ocean floor. Many of these bacteria and other microbes survive on food that drifts down from above, such as the remains of plankton that once blossomed in the sunligh ...
... By some estimates, as much as onethird of the planet’s biomass — the sheer weight of all its living organisms — is buried beneath the ocean floor. Many of these bacteria and other microbes survive on food that drifts down from above, such as the remains of plankton that once blossomed in the sunligh ...
Nat Sci 102 Name
... beneath Earth’s surface. This circulation of mantle material causes the continental and oceanic plates to move across Earth’s surface. At various locations on Earth’s surface, we are able to observe plates colliding, plates separating, and plates moving horizontally. The drawing below shows a cross ...
... beneath Earth’s surface. This circulation of mantle material causes the continental and oceanic plates to move across Earth’s surface. At various locations on Earth’s surface, we are able to observe plates colliding, plates separating, and plates moving horizontally. The drawing below shows a cross ...
Essentials of Geology Plate Tectonics: A Unifying Theory
... Plates of rigid lithosphere (oceanic and continental) move from the energy of heat transfer below Their interactions define divergent, convergent, and transform boundaries and control many surface processes including organic evolution ...
... Plates of rigid lithosphere (oceanic and continental) move from the energy of heat transfer below Their interactions define divergent, convergent, and transform boundaries and control many surface processes including organic evolution ...
Ch 5 Notes
... iv. After several tens of kilometers, the temperature increase slows. v. The high temperatures are the result of heat left over from the formation of Earth vi. Radioactive substances also release energy inside Earth c. Pressure: results from a force pressing on an area i. Inside Earth, pressure incr ...
... iv. After several tens of kilometers, the temperature increase slows. v. The high temperatures are the result of heat left over from the formation of Earth vi. Radioactive substances also release energy inside Earth c. Pressure: results from a force pressing on an area i. Inside Earth, pressure incr ...
Unit 1 Plate Tectonics UNIT 2: LAYERS OF THE EARTH STUDY
... the tremendous pressure upon it. There are two types of crust: oceanic crust and continental crust. ...
... the tremendous pressure upon it. There are two types of crust: oceanic crust and continental crust. ...
Plate Tectonics
... Plate Tectonics (cont’d) tectonic plates fit together like a jigsaw puzzle. There are about twelve large plates and a few smaller ones. They make up the earth’s surface. The plates float like rafts on the asthenosphere. This is a partly molten, flowing layer below the solid part of the earth’s mantl ...
... Plate Tectonics (cont’d) tectonic plates fit together like a jigsaw puzzle. There are about twelve large plates and a few smaller ones. They make up the earth’s surface. The plates float like rafts on the asthenosphere. This is a partly molten, flowing layer below the solid part of the earth’s mantl ...
Hydrothermal Vents
... Hot water streaming out of vents often plumes for 200 meters above the sea floor because it is less dense than surrounding cold water. Plumes probably carry larva into nearby currents. However, this still may not account for the great distances between vents. Scientists continue to test other hypoth ...
... Hot water streaming out of vents often plumes for 200 meters above the sea floor because it is less dense than surrounding cold water. Plumes probably carry larva into nearby currents. However, this still may not account for the great distances between vents. Scientists continue to test other hypoth ...
Plate Tectonics - Sterlingmontessoriscience
... • Greek – “tektonikos” of a builder • Pieces of the lithosphere that move around • Each plate has a name • Fit together like jigsaw puzzles ...
... • Greek – “tektonikos” of a builder • Pieces of the lithosphere that move around • Each plate has a name • Fit together like jigsaw puzzles ...
Modern Plate Tectonics
... Oceanic Crust – Continental Crust Basaltic oceanic crust descends beneath lighter continental crust. Coastal mountain chains develop due to compressive forces and volcanics (e.g., the Andes of South ...
... Oceanic Crust – Continental Crust Basaltic oceanic crust descends beneath lighter continental crust. Coastal mountain chains develop due to compressive forces and volcanics (e.g., the Andes of South ...
Abyssal plain
An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 m. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth’s surface. They are among the flattest, smoothest and least explored regions on Earth. Abyssal plains are key geologic elements of oceanic basins (the other elements being an elevated mid-ocean ridge and flanking abyssal hills). In addition to these elements, active oceanic basins (those that are associated with a moving plate tectonic boundary) also typically include an oceanic trench and a subduction zone.Abyssal plains were not recognized as distinct physiographic features of the sea floor until the late 1940s and, until very recently, none had been studied on a systematic basis. They are poorly preserved in the sedimentary record, because they tend to be consumed by the subduction process. The creation of the abyssal plain is the end result of spreading of the seafloor (plate tectonics) and melting of the lower oceanic crust. Magma rises from above the asthenosphere (a layer of the upper mantle) and as this basaltic material reaches the surface at mid-ocean ridges it forms new oceanic crust. This is constantly pulled sideways by spreading of the seafloor. Abyssal plains result from the blanketing of an originally uneven surface of oceanic crust by fine-grained sediments, mainly clay and silt. Much of this sediment is deposited by turbidity currents that have been channelled from the continental margins along submarine canyons down into deeper water. The remainder of the sediment is composed chiefly of pelagic sediments. Metallic nodules are common in some areas of the plains, with varying concentrations of metals, including manganese, iron, nickel, cobalt, and copper. These nodules may provide a significant resource for future mining ventures.Owing in part to their vast size, abyssal plains are currently believed to be a major reservoir of biodiversity. The abyss also exerts significant influence upon ocean carbon cycling, dissolution of calcium carbonate, and atmospheric CO2 concentrations over timescales of 100–1000 years. The structure and function of abyssal ecosystems are strongly influenced by the rate of flux of food to the seafloor and the composition of the material that settles. Factors such as climate change, fishing practices, and ocean fertilization are expected to have a substantial effect on patterns of primary production in the euphotic zone. This will undoubtedly impact the flux of organic material to the abyss in a similar manner and thus have a profound effect on the structure, function and diversity of abyssal ecosystems.