Plate Tectonics Intro- Theory and History
... 1879 – Sir George Darwin said that the Pacific Ocean was the scar left behind when the Moon pulled away from the Earth. After this happened, the continents moved to create a balanced planet. ...
... 1879 – Sir George Darwin said that the Pacific Ocean was the scar left behind when the Moon pulled away from the Earth. After this happened, the continents moved to create a balanced planet. ...
ppt: Plate Tectonics Intro- Theory and History
... 1879 – Sir George Darwin said that the Pacific Ocean was the scar left behind when the Moon pulled away from the Earth. After this happened, the continents moved to create a balanced planet. ...
... 1879 – Sir George Darwin said that the Pacific Ocean was the scar left behind when the Moon pulled away from the Earth. After this happened, the continents moved to create a balanced planet. ...
Name:
... 25. The volcanoes in Africa form on a plate boundary where two land plates pull apart from one another. These volcanoes form by … a. Rifting b. Sea floor spreading c. hot spot d. subduction 26. An underwater volcano is called a: ________________________. Matching: Volcanic features that are not VOLC ...
... 25. The volcanoes in Africa form on a plate boundary where two land plates pull apart from one another. These volcanoes form by … a. Rifting b. Sea floor spreading c. hot spot d. subduction 26. An underwater volcano is called a: ________________________. Matching: Volcanic features that are not VOLC ...
Water Fluxing - Research at UVU
... 1. Hot mantle rock rises to fill the gap created by the diverging plates. At hot spots, mantle rock rises because it is hotter than surrounding rock, much the way wax rises in a lava lamp. 2. As the hot mantle rock rises, it feels less pressure (it decompresses), yet its temperature doesn't change m ...
... 1. Hot mantle rock rises to fill the gap created by the diverging plates. At hot spots, mantle rock rises because it is hotter than surrounding rock, much the way wax rises in a lava lamp. 2. As the hot mantle rock rises, it feels less pressure (it decompresses), yet its temperature doesn't change m ...
Key topics today: How do we know about the Earth`s interior structure?
... How do we know about the Earth’s interior structure? • Drilling? • Seismic waves (earthquakes) • Other observations ...
... How do we know about the Earth’s interior structure? • Drilling? • Seismic waves (earthquakes) • Other observations ...
Dynamic Ocean Floor
... • Two plates move away from one another. • This is a zone of weakness. • As two plates move apart at the mid-ocean ridges, magma from the mantle up wells through a crack in the oceanic crust and cooled by the sea creating new ocean floor. • Energy is released in the form of earthquakes. • Shallow fo ...
... • Two plates move away from one another. • This is a zone of weakness. • As two plates move apart at the mid-ocean ridges, magma from the mantle up wells through a crack in the oceanic crust and cooled by the sea creating new ocean floor. • Energy is released in the form of earthquakes. • Shallow fo ...
Bathymetry: Features and Hypsography - COLORS
... Volcanic island arcs are formed in this manner and run parallel to a trench at a distance of ~200 km from the trench axis. Submarine canyons, generally extensions of large rivers or formed by turbidity flows, periodically cut through the continental slope and transport considerable sediments from th ...
... Volcanic island arcs are formed in this manner and run parallel to a trench at a distance of ~200 km from the trench axis. Submarine canyons, generally extensions of large rivers or formed by turbidity flows, periodically cut through the continental slope and transport considerable sediments from th ...
Sea-Floor Spreading
... flowing layer below the solid part of the earth's mantle. When one plate moves, it affects all the others. The movement of some of these plates causes sea-floor spreading. Other (12) ...
... flowing layer below the solid part of the earth's mantle. When one plate moves, it affects all the others. The movement of some of these plates causes sea-floor spreading. Other (12) ...
Chapter 5 lesson 1
... o The denser plate subducts and pushes up the less dense plate o Sometimes forms island arcs, such as Japan and the Caribbean Islands Oceanic Plate and Continental Plate o The oceanic plate subducts at a deep ocean trench. o The mantle melts and molten rock rises. o Can produce volcanoes, such as ...
... o The denser plate subducts and pushes up the less dense plate o Sometimes forms island arcs, such as Japan and the Caribbean Islands Oceanic Plate and Continental Plate o The oceanic plate subducts at a deep ocean trench. o The mantle melts and molten rock rises. o Can produce volcanoes, such as ...
The Ocean Acidification Initiative Goal: $2.5 million
... Ship-based measurements alone are inadequate for monitoring coastal and off-shore waters, so developing sensors capable of measuring the ocean’s chemistry 24/7 is essential to understanding the impacts of ocean acidification. Scientists need to measure four parameters of water chemistry: pH, carbon ...
... Ship-based measurements alone are inadequate for monitoring coastal and off-shore waters, so developing sensors capable of measuring the ocean’s chemistry 24/7 is essential to understanding the impacts of ocean acidification. Scientists need to measure four parameters of water chemistry: pH, carbon ...
aka Subduction
... Plate Tectonics - theory stating that the Earth’s crust is made up of large, moving plates - the major force in geomorphology. ...
... Plate Tectonics - theory stating that the Earth’s crust is made up of large, moving plates - the major force in geomorphology. ...
Ocean Features PPT
... B. Seamount and Island Chains • Seamounts cone shaped undersea mountain of volcanic origin • Can occur in chains or ridges and often have an active volcanic island at one end. • Hawaiian Islands are the best example. ...
... B. Seamount and Island Chains • Seamounts cone shaped undersea mountain of volcanic origin • Can occur in chains or ridges and often have an active volcanic island at one end. • Hawaiian Islands are the best example. ...
Ship Observations of the Tropical Pacific Ocean along the Coast of
... with speed standard deviation less than or equal to 1 m s21. The wind speed |u| (black dashed line) is on average 5.6 m s21, with a 0.4 m s21 offshore component. The wind follows the contour of the coast with a standard deviation in direction of under 208 in any 6-h period. South of 128S winds are a ...
... with speed standard deviation less than or equal to 1 m s21. The wind speed |u| (black dashed line) is on average 5.6 m s21, with a 0.4 m s21 offshore component. The wind follows the contour of the coast with a standard deviation in direction of under 208 in any 6-h period. South of 128S winds are a ...
GG1_Ex3_SS
... Because it is constantly present, blowing sand in an arid region can bring about more erosion than water can in a humid region. Star dunes form as a result of winds blowing primarily from one direction. Waves are: Extensive loess deposits can be found around the world, including parts of the Ukraine ...
... Because it is constantly present, blowing sand in an arid region can bring about more erosion than water can in a humid region. Star dunes form as a result of winds blowing primarily from one direction. Waves are: Extensive loess deposits can be found around the world, including parts of the Ukraine ...
Plate Tectonic Theory
... from 1 to 250 miles. The lithosphere is a cool, strong and rigid layer. Its uppermost part is called the crust and is divided into oceanic and continental-type crusts discussed in the next section. Asthenosphere. The upper reaches of the mantle are not solid; they are considered plastic and flow ver ...
... from 1 to 250 miles. The lithosphere is a cool, strong and rigid layer. Its uppermost part is called the crust and is divided into oceanic and continental-type crusts discussed in the next section. Asthenosphere. The upper reaches of the mantle are not solid; they are considered plastic and flow ver ...
Continental Drift
... • Data collected in the 1940’s and 1950’s led scientists to believe the sea floor was actually spreading apart – Technology such as sonar allowed scientists to make maps of the underwater topography of the ocean floor – SONAR: send sound waves from ship, measure the time it takes for them to return, ...
... • Data collected in the 1940’s and 1950’s led scientists to believe the sea floor was actually spreading apart – Technology such as sonar allowed scientists to make maps of the underwater topography of the ocean floor – SONAR: send sound waves from ship, measure the time it takes for them to return, ...
Human perturbations on the global biogeochemical cycles of
... bioproduction of Si on land and in the ocean is coupled to the bioproduction of C, perturbed by the atmospheric CO2 rise, land-use changes, and chemical N and P fertilization. Also, temperature rise affects Si cycling on land through bioproduction rates, terrestrial organic matter remineralization, ...
... bioproduction of Si on land and in the ocean is coupled to the bioproduction of C, perturbed by the atmospheric CO2 rise, land-use changes, and chemical N and P fertilization. Also, temperature rise affects Si cycling on land through bioproduction rates, terrestrial organic matter remineralization, ...
History of Ocean Exploration
... reasons why humans would start exploring the oceans (Think about why we do so today). List all reasons the class comes up with. ...
... reasons why humans would start exploring the oceans (Think about why we do so today). List all reasons the class comes up with. ...
D o e i
... many subduction zones—sites where lithospheric plates are being pulled down into Earth’s mantle. The stresses that build up as the plates are subducted and the heating that occurs trigger earthquakes and volcanism. Gigantic quakes at these sites take anywhere from one to ten minutes to rupture along ...
... many subduction zones—sites where lithospheric plates are being pulled down into Earth’s mantle. The stresses that build up as the plates are subducted and the heating that occurs trigger earthquakes and volcanism. Gigantic quakes at these sites take anywhere from one to ten minutes to rupture along ...
Data Analysis - Net Start Class
... created to detect the presence of iron on enemy submarines that were near the Navy boats. Using magnetometers, geologists accidentally discovered that basalt, which forms the ocean floor, contains iron. As the magma cools and crystallizes it aligns itself with the earth’s magnetic poles. In the 1950 ...
... created to detect the presence of iron on enemy submarines that were near the Navy boats. Using magnetometers, geologists accidentally discovered that basalt, which forms the ocean floor, contains iron. As the magma cools and crystallizes it aligns itself with the earth’s magnetic poles. In the 1950 ...
Types of Plate Boundaries
... Ocean-Ocean CPB Characteristics • Plate made of ocean crust is being destroyed by subducting under another plate of ocean crust. • Also called a subduction zone. • The older, colder crust will be subducted because it is more dense. • Large (9.0+) powerful earthquakes with tsunamis are common. • Ear ...
... Ocean-Ocean CPB Characteristics • Plate made of ocean crust is being destroyed by subducting under another plate of ocean crust. • Also called a subduction zone. • The older, colder crust will be subducted because it is more dense. • Large (9.0+) powerful earthquakes with tsunamis are common. • Ear ...
Letter to the Author
... ocean currents, we have a case which, though marginal, does less violence to the facts than continental drift …With regard to the climatic problem, local changes in the crust, helpful in certain specific situations, are not entirely sufficient. What will do the trick is a sliding of the entire crust ...
... ocean currents, we have a case which, though marginal, does less violence to the facts than continental drift …With regard to the climatic problem, local changes in the crust, helpful in certain specific situations, are not entirely sufficient. What will do the trick is a sliding of the entire crust ...
Ocean
An ocean (from Ancient Greek Ὠκεανός, transc. Okeanós, the sea of classical antiquity) is a body of saline water that composes much of a planet's hydrosphere. On Earth, an ocean is one of the major conventional divisions of the World Ocean, which covers almost 71% of its surface. These are, in descending order by area, the Pacific, Atlantic, Indian, Southern, and Arctic Oceans. The word sea is often used interchangeably with ""ocean"" in American English but, strictly speaking, a sea is a body of saline water (generally a division of the world ocean) partly or fully enclosed by land.Saline water covers approximately 72% of the planet's surface (~3.6×108 km2) and is customarily divided into several principal oceans and smaller seas, with the ocean covering approximately 71% of Earth's surface. The ocean contains 97% of Earth's water, and oceanographers have stated that only 5% of the World Ocean has been explored. The total volume is approximately 1.35 billion cubic kilometers (320 million cu mi) with an average depth of nearly 3,700 meters (12,100 ft).As it is the principal component of Earth's hydrosphere, the world ocean is integral to all known life, forms part of the carbon cycle, and influences climate and weather patterns. It is the habitat of 230,000 known species, although much of the oceans depths remain unexplored, and over two million marine species are estimated to exist. The origin of Earth's oceans remains unknown; oceans are thought to have formed in the Hadean period and may have been the impetus for the emergence of life.Extraterrestrial oceans may be composed of water or other elements and compounds. The only confirmed large stable bodies of extraterrestrial surface liquids are the lakes of Titan, although there is evidence for the existence of oceans elsewhere in the Solar System. Early in their geologic histories, Mars and Venus are theorized to have had large water oceans. The Mars ocean hypothesis suggests that nearly a third of the surface of Mars was once covered by water, and a runaway greenhouse effect may have boiled away the global ocean of Venus. Compounds such as salts and ammonia dissolved in water lower its freezing point, so that water might exist in large quantities in extraterrestrial environments as brine or convecting ice. Unconfirmed oceans are speculated beneath the surface of many dwarf planets and natural satellites; notably, the ocean of Europa is estimated to have over twice the water volume of Earth. The Solar System's giant planets are also thought to have liquid atmospheric layers of yet to be confirmed compositions. Oceans may also exist on exoplanets and exomoons, including surface oceans of liquid water within a circumstellar habitable zone. Ocean planets are a hypothetical type of planet with a surface completely covered with liquid.