Plate Tectonics Powerpoint
... The discovery of strips of alternating polarity, which lie as mirror images across the ocean ridges, is among the strongest evidence of seafloor spreading. ...
... The discovery of strips of alternating polarity, which lie as mirror images across the ocean ridges, is among the strongest evidence of seafloor spreading. ...
(with Death Valley) Geoscience 10: Geology of The National Parks
... The deeper a mine or oil well is, the hotter it is at the bottom; volcanoes bring up heat from below; Earth’s heat made mostly by decay of natural radioactive atoms in rocks; How materials (and people!) behave depends on what they are (iron, silica, etc.) and on the conditions they are placed in (he ...
... The deeper a mine or oil well is, the hotter it is at the bottom; volcanoes bring up heat from below; Earth’s heat made mostly by decay of natural radioactive atoms in rocks; How materials (and people!) behave depends on what they are (iron, silica, etc.) and on the conditions they are placed in (he ...
Environmental Problems
... ocean surface waters – Melting of land glaciers and ice caps – Thermal expansion of deep-ocean waters © 2011 Pearson Education, Inc. ...
... ocean surface waters – Melting of land glaciers and ice caps – Thermal expansion of deep-ocean waters © 2011 Pearson Education, Inc. ...
Lozier 2010 - Sites@Duke
... peratures taken by the captain of a British the deep ocean exports these waters via a disslave-trade ship in 1751 was the cat- tributed upwelling to the surface. Furthermore, alyst for Count Rumford’s supposition, nearly he suggested that because such upwelling produces 50 years later, that ocean wa ...
... peratures taken by the captain of a British the deep ocean exports these waters via a disslave-trade ship in 1751 was the cat- tributed upwelling to the surface. Furthermore, alyst for Count Rumford’s supposition, nearly he suggested that because such upwelling produces 50 years later, that ocean wa ...
Ocean Motion Teacher Guide 5
... Scientists are concerned about the global warming that would result from a global imbalance in the flow of energy. Oceans play an important role in forecasting the consequences of an energy imbalance. An understanding of the flow of energy and the balance of energy at the ocean’s surface will help y ...
... Scientists are concerned about the global warming that would result from a global imbalance in the flow of energy. Oceans play an important role in forecasting the consequences of an energy imbalance. An understanding of the flow of energy and the balance of energy at the ocean’s surface will help y ...
Identifying Plate Tectonics Lab 1-34
... At the location of Mt. Everest, the plates are moving Away From / Towards one another. Neither plate subducts under the other plate and down into the mantle because both plates are made of _____________________ which has a density that is much ___________________ than the density of Basalt / Granite ...
... At the location of Mt. Everest, the plates are moving Away From / Towards one another. Neither plate subducts under the other plate and down into the mantle because both plates are made of _____________________ which has a density that is much ___________________ than the density of Basalt / Granite ...
Origin of Life
... Astronomers have detected many kinds of organic molecules in space, floating in clouds of gas or bound up in dust particles. They range from the simplest - water, ammonia, methane, hydrogen cyanide and alcohols, including ethyl alcohol - to more complex molecules. Interestingly, of the more than 70 ...
... Astronomers have detected many kinds of organic molecules in space, floating in clouds of gas or bound up in dust particles. They range from the simplest - water, ammonia, methane, hydrogen cyanide and alcohols, including ethyl alcohol - to more complex molecules. Interestingly, of the more than 70 ...
subduction subduction
... Slow rate of deposition of detrital rocks. No volcanoes, no metamorphism, no folding of rock layers. Interbedded limestone, dolostone, and shale Niagara Gorge, NY ...
... Slow rate of deposition of detrital rocks. No volcanoes, no metamorphism, no folding of rock layers. Interbedded limestone, dolostone, and shale Niagara Gorge, NY ...
Chapter 11 Notes: Plate Tectonics
... Theory of Plate Tectonics – Earth’s plates are in slow, constant motion, driven by convection currents in the mantle o Plates – pieces of Earth’s lithosphere (all the crust and the upper part of the mantle) o Plate motion – occurs because the plates are the top part of a large convection current in ...
... Theory of Plate Tectonics – Earth’s plates are in slow, constant motion, driven by convection currents in the mantle o Plates – pieces of Earth’s lithosphere (all the crust and the upper part of the mantle) o Plate motion – occurs because the plates are the top part of a large convection current in ...
Oceanographic Autonomous Observations
... used to increase the effectiveness of science education? ...
... used to increase the effectiveness of science education? ...
Midterm 3 review
... waves depends on the density of the structural material. Rigid matter transmits the seismic waves faster. Plastic zones simply do not transmit certain seismic waves. Some seismic waves are reflected when density changes, whereas others are refracted (or bent) as they travel through Earth. ...
... waves depends on the density of the structural material. Rigid matter transmits the seismic waves faster. Plastic zones simply do not transmit certain seismic waves. Some seismic waves are reflected when density changes, whereas others are refracted (or bent) as they travel through Earth. ...
Earthquakes October 15th, 2009
... The Richter Scale Is a logarithmic scale, meaning that the numbers on the scale measure factors of 10 (an earthquake that measures 3.0 is ten times larger than one that measures 2.0) Anything below 2.0 is undetectable to a person and is called a microquake Moderate quakes are rated between 2. ...
... The Richter Scale Is a logarithmic scale, meaning that the numbers on the scale measure factors of 10 (an earthquake that measures 3.0 is ten times larger than one that measures 2.0) Anything below 2.0 is undetectable to a person and is called a microquake Moderate quakes are rated between 2. ...
Obj 4 Nutrient cycles in marine ecosystems
... One of the ways in which nutrients are removed from the surface waters of an ocean is by their uptake by primary producers, such as phytoplankton, and their use for the synthesis of organic substances. As an example, nitrate ions are used in the synthesis of amino acids and proteins. If the phytopla ...
... One of the ways in which nutrients are removed from the surface waters of an ocean is by their uptake by primary producers, such as phytoplankton, and their use for the synthesis of organic substances. As an example, nitrate ions are used in the synthesis of amino acids and proteins. If the phytopla ...
holiday review packet - answer key
... 18. High pressure air systems are more dense so they _____________ while low pressure systems are less dense and ______________. (2.5.3-1) (sink, rise) 19. Air masses move from ________ pressure to ________ pressure, creating wind. (2.5.3-1) (high to low) ...
... 18. High pressure air systems are more dense so they _____________ while low pressure systems are less dense and ______________. (2.5.3-1) (sink, rise) 19. Air masses move from ________ pressure to ________ pressure, creating wind. (2.5.3-1) (high to low) ...
deep-ocean basin
... • Deep-ocean basins also have distinct features. • These features include broad, flat plains; submerged volcanoes; gigantic mountain ranges; and deep trenches. • In the deep-ocean basins, the mountains are higher and the plains are flatter than any features found on the continents are. ...
... • Deep-ocean basins also have distinct features. • These features include broad, flat plains; submerged volcanoes; gigantic mountain ranges; and deep trenches. • In the deep-ocean basins, the mountains are higher and the plains are flatter than any features found on the continents are. ...
powerpoint_6.1_Volacanoes_and_Plate_Tectonics
... • Magma is a liquidtherefore it is less dense than surrounding solid material. – Flows upward into any cracks in the rocks above. – Rises until it reaches the surface or becomes trapped beneath layers or rocks. ...
... • Magma is a liquidtherefore it is less dense than surrounding solid material. – Flows upward into any cracks in the rocks above. – Rises until it reaches the surface or becomes trapped beneath layers or rocks. ...
1 Section 4.4 - Sea- Floor Spreading Directions
... Ocean water sinks through cracks, or vents, in the crust. The water is heated by contact with hot material from the mantle and then spurts back into the ocean ...
... Ocean water sinks through cracks, or vents, in the crust. The water is heated by contact with hot material from the mantle and then spurts back into the ocean ...
Crystal ball - Laboratory for Microbial Oceanography
... since it is impossible to sustain continuous human presence at this remote field location. Significant microbial and biogeochemical changes have also been observed on decadal time scales, possibly triggered by large-scale changes in the coupling of the ocean to the atmosphere (e.g. El Niño) or by se ...
... since it is impossible to sustain continuous human presence at this remote field location. Significant microbial and biogeochemical changes have also been observed on decadal time scales, possibly triggered by large-scale changes in the coupling of the ocean to the atmosphere (e.g. El Niño) or by se ...
southern alps: geology - Geoscience Research Institute
... 2) Cretaceous to Eocene: phase of oceanic subduction An important tectonic change occurred in the Cretaceous. The opening of the South Atlantic caused a counterclockwise rotation of the African continent (Fig. 1). This new direction of movement pushed Adria against Europe. As a result, the Ligurian- ...
... 2) Cretaceous to Eocene: phase of oceanic subduction An important tectonic change occurred in the Cretaceous. The opening of the South Atlantic caused a counterclockwise rotation of the African continent (Fig. 1). This new direction of movement pushed Adria against Europe. As a result, the Ligurian- ...
Chapter 5 – Sea/Air Interactions
... latitudes. In the ocean, the heat flux is accomplished by contributions from the winddriven circulation in the upper ocean, by turbulent eddies, and by the Meridional Overturning Circulation (MOC). The MOC is a component of ocean circulation that is driven by density contrasts, rather than by winds ...
... latitudes. In the ocean, the heat flux is accomplished by contributions from the winddriven circulation in the upper ocean, by turbulent eddies, and by the Meridional Overturning Circulation (MOC). The MOC is a component of ocean circulation that is driven by density contrasts, rather than by winds ...
Plate Tectonics _2010
... • Where lithospheric plates are moving towards one another at their boundary, lithospheric area must be consumed. This is accomplished by subduction or thickening and delamination. ...
... • Where lithospheric plates are moving towards one another at their boundary, lithospheric area must be consumed. This is accomplished by subduction or thickening and delamination. ...
Internal Structure of the Earth
... • The continents fit together like puzzle pieces. • The fossils and rocks on separate continents being identical. • Climate regions (found by looking at fossils) that did not match up with the positions the continents are located today. ...
... • The continents fit together like puzzle pieces. • The fossils and rocks on separate continents being identical. • Climate regions (found by looking at fossils) that did not match up with the positions the continents are located today. ...
Name: 1) The primary cause of convection currents in the Earth`s
... Questions 17 through 21 refer to the following: Diagram I below is a map showing the location and bedrock age of some of the Hawaiian Islands. Diagram II is a cross section of an area of the Earth illustrating a stationary magma source and the process that could have formed the islands. ...
... Questions 17 through 21 refer to the following: Diagram I below is a map showing the location and bedrock age of some of the Hawaiian Islands. Diagram II is a cross section of an area of the Earth illustrating a stationary magma source and the process that could have formed the islands. ...
Unit 4 Chapter 10
... The location by oceans and other continents plays an important role too. When continents move, they also change the flow of air round the globe. Change in Climate Geologic evidence shows ice once covered most of Earth’s surfaces. Even the Sahara had ice. This occurred about 450 million years ago whe ...
... The location by oceans and other continents plays an important role too. When continents move, they also change the flow of air round the globe. Change in Climate Geologic evidence shows ice once covered most of Earth’s surfaces. Even the Sahara had ice. This occurred about 450 million years ago whe ...
Wednesday Sept 8th
... YES!! The density of the plates determines which will be on top after a collision. More dense sinks Less dense goes on top ...
... YES!! The density of the plates determines which will be on top after a collision. More dense sinks Less dense goes on top ...
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.