File - Units 1 & 2 Geography
... To the nearest metre, how far will the Nazca and Pacific plates have moved over the next 200 years? 6 metres ...
... To the nearest metre, how far will the Nazca and Pacific plates have moved over the next 200 years? 6 metres ...
Ch19_PlateTectonics
... – Denser oceanic slab sinks into the asthenosphere – Bathymetry marked by trench – As plate descends, partial melting of mantle rock makes basaltic or andesitic magmas ...
... – Denser oceanic slab sinks into the asthenosphere – Bathymetry marked by trench – As plate descends, partial melting of mantle rock makes basaltic or andesitic magmas ...
20081 Study Guide_i-40
... 3. New ocean floor is constantly being produced through the process known as a. subduction. c. seafloor spreading. ...
... 3. New ocean floor is constantly being produced through the process known as a. subduction. c. seafloor spreading. ...
Quiz 4 - Study Guidelines Study Outline
... 7. The aging process of water masses may be monitored by measuring the amount of dissolved oxygen in deep waters (below 4000 meters). Where are the highest concentrations of dissolved oxygen found? (This identifies the youngest deep waters.) 8. What processes are responsible for the decrease in diss ...
... 7. The aging process of water masses may be monitored by measuring the amount of dissolved oxygen in deep waters (below 4000 meters). Where are the highest concentrations of dissolved oxygen found? (This identifies the youngest deep waters.) 8. What processes are responsible for the decrease in diss ...
D O E I
... and the devastating tsunami it generated are prime examples of why a better understanding of the integral relationship between earth and ocean is essential. Through that knowledge will come applications that can help save lives and improve economic conditions for millions. ...
... and the devastating tsunami it generated are prime examples of why a better understanding of the integral relationship between earth and ocean is essential. Through that knowledge will come applications that can help save lives and improve economic conditions for millions. ...
Forschungszentrum für marine
... Japan. But how exactly did this process begin? As part of the International Ocean Discovery Program, an international science team was able to drill and investigate the origin of a subduction zone for the first time in 2014. The team is now publishing its data in the international scientific journal ...
... Japan. But how exactly did this process begin? As part of the International Ocean Discovery Program, an international science team was able to drill and investigate the origin of a subduction zone for the first time in 2014. The team is now publishing its data in the international scientific journal ...
Tectonic Landforms
... • When two oceanic plates collide, the older more dense slab will sink back into the mantle forming a subduction zone. • The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. • Trench systems occur for both continent-ocean and ocean-ocean boundaries ...
... • When two oceanic plates collide, the older more dense slab will sink back into the mantle forming a subduction zone. • The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. • Trench systems occur for both continent-ocean and ocean-ocean boundaries ...
Ocean Bottom Topography
... Background Information: Ocean depth varies markedly from one location to another. Over large areas water depth is less than 200m (650 ft); in other areas the water depth is as great as 11,000 m (36,000 ft). The average ocean depth is 3796 m (12,454 or 2.4 miles). This investigation examines the ocea ...
... Background Information: Ocean depth varies markedly from one location to another. Over large areas water depth is less than 200m (650 ft); in other areas the water depth is as great as 11,000 m (36,000 ft). The average ocean depth is 3796 m (12,454 or 2.4 miles). This investigation examines the ocea ...
Name Date ______ Lab Grade ______/10 Period ______ Lab
... Background Information: Ocean depth varies markedly from one location to another. Over large areas water depth is less than 200m (650 ft); in other areas the water depth is as great as 11,000 m (36,000 ft). The average ocean depth is 3796 m (12,454 or 2.4 miles). This investigation examines the ocea ...
... Background Information: Ocean depth varies markedly from one location to another. Over large areas water depth is less than 200m (650 ft); in other areas the water depth is as great as 11,000 m (36,000 ft). The average ocean depth is 3796 m (12,454 or 2.4 miles). This investigation examines the ocea ...
File
... o There are two basic categories of dating how old something is. A method that tells you how old something is compared to another thing is a ____________ dating method. A method that tells you the exact age of something is an ____________ dating method. o Counting the rings in a tree is a method of ...
... o There are two basic categories of dating how old something is. A method that tells you how old something is compared to another thing is a ____________ dating method. A method that tells you the exact age of something is an ____________ dating method. o Counting the rings in a tree is a method of ...
Embargoed until Thursday 1 May 11 am (CEST)
... extrasolar planets covered globally by a mega-ocean may not be the most habitable: in a very deep ocean the formation of eternal ice may be more likely than the formation of life. A group of German, Belgian and Austrian scientists, led by Lean Noack of the Royal Observatory of Belgium, has explored ...
... extrasolar planets covered globally by a mega-ocean may not be the most habitable: in a very deep ocean the formation of eternal ice may be more likely than the formation of life. A group of German, Belgian and Austrian scientists, led by Lean Noack of the Royal Observatory of Belgium, has explored ...
Part2platetectonics BEST!
... Subduction processes in oceanic-oceanic plate convergence also result in the formation of volcanoes. Over millions of years, the erupted lava and volcanic debris pile up on the ocean floor until a submarine volcano rises above sea level to form an island volcano. Such volcanoes are typically strung ...
... Subduction processes in oceanic-oceanic plate convergence also result in the formation of volcanoes. Over millions of years, the erupted lava and volcanic debris pile up on the ocean floor until a submarine volcano rises above sea level to form an island volcano. Such volcanoes are typically strung ...
Lesson Plans for Sandra Napier for the week of 11/18/2013 (Page 1
... ocean floor. On the ocean floor, there is a mountain range made of volcanic mountains that divides the ocean floor into two halves. It is called the mid-ocean ridge. The rift zone is at the highest point of the mid-ocean ridge where the volcanic activity adds mountains to either side of the mid-oce ...
... ocean floor. On the ocean floor, there is a mountain range made of volcanic mountains that divides the ocean floor into two halves. It is called the mid-ocean ridge. The rift zone is at the highest point of the mid-ocean ridge where the volcanic activity adds mountains to either side of the mid-oce ...
Plate Tectonics - DuBois Area School District
... the mid-ocean ridges. The lithosphere forms the floating plates. The largest plate is the Pacific plate and the smallest is the Juan de Fuca plate. ...
... the mid-ocean ridges. The lithosphere forms the floating plates. The largest plate is the Pacific plate and the smallest is the Juan de Fuca plate. ...
Warm- up Question Summarize: What you know about Continental
... were a break in the crust, that allowed magma to well up and form new crust Proof came in the mid 1960’s from another group mapping world wide magnetic fields on land and sea ...
... were a break in the crust, that allowed magma to well up and form new crust Proof came in the mid 1960’s from another group mapping world wide magnetic fields on land and sea ...
Quizlet Chapter 30: Plate Tectonics- Plate tectonics Introduction to
... Hot, less dense ridge material floats higher on asthenosphere sea floor forming - spreading - abyssal hills - abyssal plains older rock & thicker sediment as you go away from ridge trench ...
... Hot, less dense ridge material floats higher on asthenosphere sea floor forming - spreading - abyssal hills - abyssal plains older rock & thicker sediment as you go away from ridge trench ...
The Growth of Marine Labs
... marine biology. SONAR (SOund NAvigation Ranging) was a direct development as a result of World War II. Sonar is able to pick up sounds in the ocean made by underwater life, and more important to the Navy, sounds made by submarines. ...
... marine biology. SONAR (SOund NAvigation Ranging) was a direct development as a result of World War II. Sonar is able to pick up sounds in the ocean made by underwater life, and more important to the Navy, sounds made by submarines. ...
2) Model policy
... Ocean pCO2 time series are one of the most valuable tools to observe trends of carbon fluxes. These analyses are limited by the coverage of measurements (less than 5% at 2° and monthly resolution over the last 20 years). The rapid development of satellite measurements which provide very large volum ...
... Ocean pCO2 time series are one of the most valuable tools to observe trends of carbon fluxes. These analyses are limited by the coverage of measurements (less than 5% at 2° and monthly resolution over the last 20 years). The rapid development of satellite measurements which provide very large volum ...
Background information Year 9, unit 2: Plate tectonics
... The development of the theory of plate tectonics In 1912, Alfred Wegener proposed his theory of continental drift. He suggested that the continents were once all attached in a single landmass he called Pangaea (Greek for ‘all earth’). Over time, this mass broke apart and drifted to separate places o ...
... The development of the theory of plate tectonics In 1912, Alfred Wegener proposed his theory of continental drift. He suggested that the continents were once all attached in a single landmass he called Pangaea (Greek for ‘all earth’). Over time, this mass broke apart and drifted to separate places o ...
10. Continental Drift
... 2. sunlight once penetrated to the deepest parts of the ocean 3. organisms that live in deep water evolved from species that once lived in shallow water 4. sections of the Earth's crust have changed their elevations relative to sea level 9. Which graph best shows the inferred density of Earth’s ...
... 2. sunlight once penetrated to the deepest parts of the ocean 3. organisms that live in deep water evolved from species that once lived in shallow water 4. sections of the Earth's crust have changed their elevations relative to sea level 9. Which graph best shows the inferred density of Earth’s ...
Volcanoes, Earthquakes, Plates after
... • Oceanic lithosphere subducts underneath the continental lithosphere • Oceanic lithosphere heats and dehydrates as it subsides • The melt rises forming volcanism • E.g. The Andes ...
... • Oceanic lithosphere subducts underneath the continental lithosphere • Oceanic lithosphere heats and dehydrates as it subsides • The melt rises forming volcanism • E.g. The Andes ...
Composition of the earth, Geologic Time, and Plate Tectonics
... Compressive stress: Pressure that pushes material together: operates in opposition toward a common point of ...
... Compressive stress: Pressure that pushes material together: operates in opposition toward a common point of ...
3 Life in the Ocean
... bottom of the ocean. It includes the animals living near, on, or in the ocean floor. The pelagic environment is found near the ocean surface and in the open and deep-ocean water. It gets more sunlight than any other zone, so many phytoplankton can grow. These phytoplankton act as food for other mari ...
... bottom of the ocean. It includes the animals living near, on, or in the ocean floor. The pelagic environment is found near the ocean surface and in the open and deep-ocean water. It gets more sunlight than any other zone, so many phytoplankton can grow. These phytoplankton act as food for other mari ...
Oceanic Lithosphere: How do we determine the thickness? What is
... density is a function of plate temperature. The predicted relation incorporating just conductive cooling, and no radioactive heat source (a fine approximation for the oceans) is given by: r d(t) = dr + 2 ...
... density is a function of plate temperature. The predicted relation incorporating just conductive cooling, and no radioactive heat source (a fine approximation for the oceans) is given by: r d(t) = dr + 2 ...
Test - Scioly.org
... Dynamic Planet – Test Written by: Araneesh Pratap (Chattahoochee High School) ...
... Dynamic Planet – Test Written by: Araneesh Pratap (Chattahoochee High School) ...
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.