Wegener—Continental Drift
... supercontinent Pangaea and have drifted apart over time. This idea is known as continental drift. Which of the following is the best fossil evidence for continental drift? A. Fossils of the same land dwelling animals were found on widely separated continents. B. Fossils of the same ocean dwelling or ...
... supercontinent Pangaea and have drifted apart over time. This idea is known as continental drift. Which of the following is the best fossil evidence for continental drift? A. Fossils of the same land dwelling animals were found on widely separated continents. B. Fossils of the same ocean dwelling or ...
6.4 NOTES What is plate tectonics? Objectives: Name some crustal
... athenosphere. It is located just below the uppermost part of the mantle. Tectonic plates float on the athenosphere like a raft on a lake. The continents and oceans are carried along on these plates. ...
... athenosphere. It is located just below the uppermost part of the mantle. Tectonic plates float on the athenosphere like a raft on a lake. The continents and oceans are carried along on these plates. ...
Land & The Earth
... Lithosphere – The layer that is the crust and the top of the mantle. Lithos means “rock”. Asthenosphere – The layer just below the lithosphere & is part of the upper mantle. Acts like a plastic, with low density. The layer that moves the crustal plates. Mantle – Layer of hot solid rock. The thickest ...
... Lithosphere – The layer that is the crust and the top of the mantle. Lithos means “rock”. Asthenosphere – The layer just below the lithosphere & is part of the upper mantle. Acts like a plastic, with low density. The layer that moves the crustal plates. Mantle – Layer of hot solid rock. The thickest ...
Can Ocean Models Help to Understand the Role of the Ocean in
... model); These models have at their core “physical laws”, such as Newton’s Law (F=ma) Ecosystem Models/Carbon cycle models (ocean/land treated separately): Building models of biological systems is very difficult! As a result of our lack of understanding, these models have less “skill” than dynamical ...
... model); These models have at their core “physical laws”, such as Newton’s Law (F=ma) Ecosystem Models/Carbon cycle models (ocean/land treated separately): Building models of biological systems is very difficult! As a result of our lack of understanding, these models have less “skill” than dynamical ...
Seafloor Spreading - Perry Local Schools
... • That ridge, it was later discovered, extended through the major oceans of the world. It is now called the Mid-Ocean Ridge. • In some places the canyon, called the Great Global Rift, came very close to land. The rift appeared to be breaks in the earth's crust, but perfectly fitted breaks, like join ...
... • That ridge, it was later discovered, extended through the major oceans of the world. It is now called the Mid-Ocean Ridge. • In some places the canyon, called the Great Global Rift, came very close to land. The rift appeared to be breaks in the earth's crust, but perfectly fitted breaks, like join ...
Review Key - Walden Science
... Cold water is more dense than warm water. Salty water is more dense than fresh water. 24. What is a thermocline in the ocean? Layer of cold ocean water 25. Explain how it is possible for a fisherman to catch freshwater fish in the ocean. At a river delta, the fresh water of the river flows into the ...
... Cold water is more dense than warm water. Salty water is more dense than fresh water. 24. What is a thermocline in the ocean? Layer of cold ocean water 25. Explain how it is possible for a fisherman to catch freshwater fish in the ocean. At a river delta, the fresh water of the river flows into the ...
Marine Chemistry and Sediments Test Review
... The ocean has a higher buffering capacity than rivers and lakes. This is due to the amount of dissolved inorganic carbon found in the ocean. This makes the ocean less prone to large pH swings when acids or bases are added whether it be from sewage outfalls or acid rain. Information can be found in t ...
... The ocean has a higher buffering capacity than rivers and lakes. This is due to the amount of dissolved inorganic carbon found in the ocean. This makes the ocean less prone to large pH swings when acids or bases are added whether it be from sewage outfalls or acid rain. Information can be found in t ...
Biomes of the World
... Thermoclines: mid level region with fast temperature change (deeper colder) 4. Benthic zone: bottom of the biome (sand, organic sediments, detritus) ...
... Thermoclines: mid level region with fast temperature change (deeper colder) 4. Benthic zone: bottom of the biome (sand, organic sediments, detritus) ...
Changing Earth
... the sites were two plates are drifting apart. Because of this, the age of islands tends to increase with increasing distance from the ridge. ...
... the sites were two plates are drifting apart. Because of this, the age of islands tends to increase with increasing distance from the ridge. ...
7 continents
... Is the 5th largest continent, about 9% of Earth’s land. The only people that live here are scientists. The Southern Ocean surrounds all sides of the continent. Is covered mostly by ice. Has the coldest and windiest climate on the planet. ...
... Is the 5th largest continent, about 9% of Earth’s land. The only people that live here are scientists. The Southern Ocean surrounds all sides of the continent. Is covered mostly by ice. Has the coldest and windiest climate on the planet. ...
Plate Tectonics
... • Two plates are colliding or moving together • Old crust is being deformed or destroyed(melted) due to collision • At convergent zone one of two things can happen – Oceanic plate crust can be forced down underneath less dense continental or oceanic crust, forming a deep ocean trench at the subducti ...
... • Two plates are colliding or moving together • Old crust is being deformed or destroyed(melted) due to collision • At convergent zone one of two things can happen – Oceanic plate crust can be forced down underneath less dense continental or oceanic crust, forming a deep ocean trench at the subducti ...
Structure of Ocean Floor
... concentrations, the solution with the higher concentrations of solutes is hypertonic; the solution with the lower concentration of solutes is hypotonic. ...
... concentrations, the solution with the higher concentrations of solutes is hypertonic; the solution with the lower concentration of solutes is hypotonic. ...
Marine Mineral Resources - International Seabed Authority
... in 1979 that were previously known only from deposits that have been mined on land since pre-classical times for copper, iron, zinc, silver and gold. Massive sulphides are deposited around seafloor hot springs (the most impressive are the black smokers) that are heated by magma (molten rock) upwelli ...
... in 1979 that were previously known only from deposits that have been mined on land since pre-classical times for copper, iron, zinc, silver and gold. Massive sulphides are deposited around seafloor hot springs (the most impressive are the black smokers) that are heated by magma (molten rock) upwelli ...
Solubility of Carbon Dioxide
... and listen to the fizzing noise made by each. SEPERATELY listen to the fizzing The solubility and of the carbon dioxide in water noise made by each. The solubility of So the increases as the temperature decreases. the carbon dioxide inin water decreases water in the bottle put the freezer will have ...
... and listen to the fizzing noise made by each. SEPERATELY listen to the fizzing The solubility and of the carbon dioxide in water noise made by each. The solubility of So the increases as the temperature decreases. the carbon dioxide inin water decreases water in the bottle put the freezer will have ...
Bathymetry and Geological Setting of the Drake Passage
... Institute (KOPRI), the Alfred Wegener Institute (AWI) and the United States Antarctic Program (USAP). The map cover an area of 1470000 km2 between parallels 52ºS and 63ºS an between meridians 70ºW and 50ºW, where the high resolution bathymetric data covers more than 70% of the region with a 200 m ce ...
... Institute (KOPRI), the Alfred Wegener Institute (AWI) and the United States Antarctic Program (USAP). The map cover an area of 1470000 km2 between parallels 52ºS and 63ºS an between meridians 70ºW and 50ºW, where the high resolution bathymetric data covers more than 70% of the region with a 200 m ce ...
XXV IOC Assembly 2009 urged
... • highlighted the necessity of sustained observations for both climate research and services, and for national climate adaptation strategies in the coastal zone. • commended Member States for their efforts in implementation • expressed concern with the slowing of progress and with the fragility of t ...
... • highlighted the necessity of sustained observations for both climate research and services, and for national climate adaptation strategies in the coastal zone. • commended Member States for their efforts in implementation • expressed concern with the slowing of progress and with the fragility of t ...
GEOL3045: Planetary Geology
... Old oceanic crust dense & heavy Heavy vs. light => subduction ...
... Old oceanic crust dense & heavy Heavy vs. light => subduction ...
Section 2 The Ocean Floor
... into the ocean. The sound moves through the water, bounces off the ocean floor, and returns to the ship. The deeper the water is, the longer the round trip takes. Scientists then calculate the depth by multiplying half the travel time by the speed of sound in water (about 1,500 m/s). This process is ...
... into the ocean. The sound moves through the water, bounces off the ocean floor, and returns to the ship. The deeper the water is, the longer the round trip takes. Scientists then calculate the depth by multiplying half the travel time by the speed of sound in water (about 1,500 m/s). This process is ...
Plate Tectonics 07ppt
... Oceanic divergent boundary • Sea-floor spreading of ocean plates Mid-Atlantic Ridge ...
... Oceanic divergent boundary • Sea-floor spreading of ocean plates Mid-Atlantic Ridge ...
Announcements - Western Washington University
... Major findings of Deep-sea drilling project: Sediment depth increases away from ocean ridges Sediment age and age of the crust increases away from ridges -magnetic and radiometric dating ...
... Major findings of Deep-sea drilling project: Sediment depth increases away from ocean ridges Sediment age and age of the crust increases away from ridges -magnetic and radiometric dating ...
The Three Voices
... Of populous city places, Of desolate shores they lave (wash): Of men who sally (set out briskly) in quest of gold To sink in an ocean grave. ...
... Of populous city places, Of desolate shores they lave (wash): Of men who sally (set out briskly) in quest of gold To sink in an ocean grave. ...
Atlantic Ocean Floor Topography Lab.
... and record the depth of the ocean and heights of islands or land masses at regular intervals, (such as every 2 miles or some other appropriate distance). Make another line graph like you did in this Lab. Label the geographic and topographic features, color it and write a short essay comparing the tw ...
... and record the depth of the ocean and heights of islands or land masses at regular intervals, (such as every 2 miles or some other appropriate distance). Make another line graph like you did in this Lab. Label the geographic and topographic features, color it and write a short essay comparing the tw ...
Ocean waves that wear away an island`s shoreline
... 8. Wegner believed the continents had once been joined in one landmass called ____________________. 9. The theory of ____________________ states all the continents once were joined as a single supercontinent and have since drifted apart. 10.To support his theory, Alfred Wegener provided evidence fro ...
... 8. Wegner believed the continents had once been joined in one landmass called ____________________. 9. The theory of ____________________ states all the continents once were joined as a single supercontinent and have since drifted apart. 10.To support his theory, Alfred Wegener provided evidence fro ...
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.