sea-floor spreading - Science with Ms. Flythe
... that determines the distance of an under water object by recording echoes of sound waves • The time it takes for the echo to arrive tells the distance to the object ...
... that determines the distance of an under water object by recording echoes of sound waves • The time it takes for the echo to arrive tells the distance to the object ...
3 - Sea Floor Spreading
... not have to push through the ocean floor but were carried along as the ocean floor spread from the ridges. ...
... not have to push through the ocean floor but were carried along as the ocean floor spread from the ridges. ...
Full-text PDF - Association for the Sciences of Limnology
... 1957). Except for the waters of the East Indian Archipelago, where Trichodesmium blooms have been reported from the Java Sea (Delsman 1939), the east coast of Borneo ( Mohler 1941) and the Arafura Sea ( Moseley 1892; Murray 1895)) the only accounts known to us of blooms of this alga in the Pacific O ...
... 1957). Except for the waters of the East Indian Archipelago, where Trichodesmium blooms have been reported from the Java Sea (Delsman 1939), the east coast of Borneo ( Mohler 1941) and the Arafura Sea ( Moseley 1892; Murray 1895)) the only accounts known to us of blooms of this alga in the Pacific O ...
Sediment Deposition Supports Seafloor Spreading
... down through the water. Microfossils are fossilized microscopic organisms. Common 1500 m types include nannofossils, foraminifers, and diatoms. When microfossils are the major component of basement the sediment, then that sediment can be called an ooze. The sediment layer can be up to 2000 meters th ...
... down through the water. Microfossils are fossilized microscopic organisms. Common 1500 m types include nannofossils, foraminifers, and diatoms. When microfossils are the major component of basement the sediment, then that sediment can be called an ooze. The sediment layer can be up to 2000 meters th ...
IM_chapter9 Seafloor
... spectacular and beautiful ecosystems are home to more than one-fourth of all marine plant and animal species. Reefs are built of tiny coral polyps that construct calcium carbonate (CaCO3) shells around their bodies. The coral polyps enjoy a mutually beneficial relationship with minute algae called z ...
... spectacular and beautiful ecosystems are home to more than one-fourth of all marine plant and animal species. Reefs are built of tiny coral polyps that construct calcium carbonate (CaCO3) shells around their bodies. The coral polyps enjoy a mutually beneficial relationship with minute algae called z ...
The Indian-Atlantic Ocean gateway during the Pliocene: current
... 361 – Southern African Climates and Agulhas LGM Density Profile by Gruetzner et al., this Volume). Our new research proposal focuses on three of these sites forming a latitudinal transect in the Atlantic-/Indian Ocean gateway and combines chemical, physical property and seismic methods. Primary site ...
... 361 – Southern African Climates and Agulhas LGM Density Profile by Gruetzner et al., this Volume). Our new research proposal focuses on three of these sites forming a latitudinal transect in the Atlantic-/Indian Ocean gateway and combines chemical, physical property and seismic methods. Primary site ...
Biomes: Islands & Evolution
... “Garua” (June-Nov): 72 degrees w/ cold winds, dense fogs, and drizzles (called Garuas in Spanish) Warm Season (Dec-May) 77 degrees w/ sun and occasional heavy rains ...
... “Garua” (June-Nov): 72 degrees w/ cold winds, dense fogs, and drizzles (called Garuas in Spanish) Warm Season (Dec-May) 77 degrees w/ sun and occasional heavy rains ...
Slide 1
... The intensity of the acoustic reflections from the seafloor of this fan-shaped beam is recorded in a series of cross-track slices. When stitched together along the direction of motion, these slices form an image of the sea bottom within the swath (coverage width) of the beam. The sound frequencies u ...
... The intensity of the acoustic reflections from the seafloor of this fan-shaped beam is recorded in a series of cross-track slices. When stitched together along the direction of motion, these slices form an image of the sea bottom within the swath (coverage width) of the beam. The sound frequencies u ...
Chapter 32: The Physical Geography of Australia, Oceania, and
... which lies “down under” the Equator. Australia’s original settlers were Aborigines; the first settlers of New Zealand were the Maori. During the 1800s, the British colonized both lands.Today, Australia and the islands of Oceania are a blend of European, traditional Pacific, and ...
... which lies “down under” the Equator. Australia’s original settlers were Aborigines; the first settlers of New Zealand were the Maori. During the 1800s, the British colonized both lands.Today, Australia and the islands of Oceania are a blend of European, traditional Pacific, and ...
Exam 3 PRACTICE – Winter 2016 KEY
... a. In winter these waters are saltier and colder, and therefore denser, than deeper water b. All year long these waters are less dense than deeper waters c. In summer these waters are saltier and warmer, and therefore less dense, than deeper water d. The question is false; deep-ocean circulation is ...
... a. In winter these waters are saltier and colder, and therefore denser, than deeper water b. All year long these waters are less dense than deeper waters c. In summer these waters are saltier and warmer, and therefore less dense, than deeper water d. The question is false; deep-ocean circulation is ...
Name: Date: Period: ______ Unit 7 – Oceans Review Test Details
... Ch. 19 – The Ocean Basin 1. What is mid-ocean ridge? 2. What is oceanography? 3. What is sonar? How does it work? 4. What is a continental shelf? 5. How fast do sound waves travel in water? (Give your answer in ft/sec) 6. Where are the flattest regions on Earth located? 7. What is a trench? 8. Why i ...
... Ch. 19 – The Ocean Basin 1. What is mid-ocean ridge? 2. What is oceanography? 3. What is sonar? How does it work? 4. What is a continental shelf? 5. How fast do sound waves travel in water? (Give your answer in ft/sec) 6. Where are the flattest regions on Earth located? 7. What is a trench? 8. Why i ...
The Ocean
... Compare the earth ´s major oceans in table 8-1, p. 370. Key words: surface area, volume, percentage, the greatest /least average depth, the shallowest Marginal seas formed in three different ways: 1. When continents came together. The Mediterranean Sea and the Black Sea are thought to have formed wh ...
... Compare the earth ´s major oceans in table 8-1, p. 370. Key words: surface area, volume, percentage, the greatest /least average depth, the shallowest Marginal seas formed in three different ways: 1. When continents came together. The Mediterranean Sea and the Black Sea are thought to have formed wh ...
Global Ocean Legacy - The Pew Charitable Trusts
... The ocean plays an essential role in sustaining life on our planet. It covers nearly three-fourths of the globe and is home to nearly a quarter of the world’s known species—and many more yet to be discovered.1 The ocean provides sustenance for billions of people and myriad wildlife. But human activi ...
... The ocean plays an essential role in sustaining life on our planet. It covers nearly three-fourths of the globe and is home to nearly a quarter of the world’s known species—and many more yet to be discovered.1 The ocean provides sustenance for billions of people and myriad wildlife. But human activi ...
Chapter 23 Test Review Notes
... One method of obtaining a sample of sea-floor sediment with its layers preserved involves using a gravity corer. Passive continental margins are characterized by the presence of coastal plains. Suppose sound travels at an average rate of 1500 meters per second through seawater above a particul ...
... One method of obtaining a sample of sea-floor sediment with its layers preserved involves using a gravity corer. Passive continental margins are characterized by the presence of coastal plains. Suppose sound travels at an average rate of 1500 meters per second through seawater above a particul ...
OCEANS
... 25. Where are the tallest mountains and deepest canyons found? 26. What is the name for the deepest trench on Earth? 27. How far below the sea surface does it measure? 28. How many times the depth of the Grand Canyon is that? 29. What are the 3 reasons as to why studying the ocean floor is difficult ...
... 25. Where are the tallest mountains and deepest canyons found? 26. What is the name for the deepest trench on Earth? 27. How far below the sea surface does it measure? 28. How many times the depth of the Grand Canyon is that? 29. What are the 3 reasons as to why studying the ocean floor is difficult ...
El Niño and Its Effects on the Galapagos Islands
... • Thermocline- depth at which the temperature of the ocean declines rapidly- has the most nutrients • ITCZ (Intertropical Convergence Zone)- The region where northeasterly and southeasterly tradewinds converge creating an area of low pressure along the equator ...
... • Thermocline- depth at which the temperature of the ocean declines rapidly- has the most nutrients • ITCZ (Intertropical Convergence Zone)- The region where northeasterly and southeasterly tradewinds converge creating an area of low pressure along the equator ...
Oceanography Quick Notes
... has more food for organisms, but the organisms usually have to deal with large temperature and salinity changes, high silt content and pollution. Many marine organisms are filter feeders so silt can be a major problem. Many of these filter feeders are important as food to humans. A watershed is th ...
... has more food for organisms, but the organisms usually have to deal with large temperature and salinity changes, high silt content and pollution. Many marine organisms are filter feeders so silt can be a major problem. Many of these filter feeders are important as food to humans. A watershed is th ...
Chapter 32: The Physical Geography of Australia, Oceania, and
... which lies “down under” the Equator. Australia’s original settlers were Aborigines; the first settlers of New Zealand were the Maori. During the 1800s, the British colonized both lands.Today, Australia and the islands of Oceania are a blend of European, traditional Pacific, and ...
... which lies “down under” the Equator. Australia’s original settlers were Aborigines; the first settlers of New Zealand were the Maori. During the 1800s, the British colonized both lands.Today, Australia and the islands of Oceania are a blend of European, traditional Pacific, and ...
Chapter 3: The Physical Setting
... Echo sounder • Principle: Fig 3.10 • Measurements 1922 US Navy Destroyer Steward 1925 – 1927 German Meteor research and survey ship Uneven distributed maps (Fig 3.11) ...
... Echo sounder • Principle: Fig 3.10 • Measurements 1922 US Navy Destroyer Steward 1925 – 1927 German Meteor research and survey ship Uneven distributed maps (Fig 3.11) ...
Global Variations of Chemical Composition of Oceans
... demonstrate a reverse situation). As a result, there are no conditions for formation of ...
... demonstrate a reverse situation). As a result, there are no conditions for formation of ...
Seafloor notes
... areas of the ocean basins. These nodules are rich in manganese, copper, iron, nickel, and cobalt, which are used the manufacture of steel, paint, and batteries. ...
... areas of the ocean basins. These nodules are rich in manganese, copper, iron, nickel, and cobalt, which are used the manufacture of steel, paint, and batteries. ...
Marine Science Unit 7 1. are underwater, volcanic mountains with
... separated over time and _____________ to their present locations. 15. A theory known as ___________________ suggests that Earth’s outermost layer, or _____________, is separated into 12 or more large pieces or plates. 16. The ____________________ is the 5-mile-thick plate which lies beneath oceans. ...
... separated over time and _____________ to their present locations. 15. A theory known as ___________________ suggests that Earth’s outermost layer, or _____________, is separated into 12 or more large pieces or plates. 16. The ____________________ is the 5-mile-thick plate which lies beneath oceans. ...
Ocean and Climate
... Density increases with temperature and salinity (1psu≈1g/kg=1‰), Fresh water has maximum density at 4oC (cooling forms ice) At 15oC the water at the ocean surface (S≈36 psu) has ≈26.7 kg/m3 which translates into a lower density =1026.7 kg/m3 compared to a temperature of 0oC. ...
... Density increases with temperature and salinity (1psu≈1g/kg=1‰), Fresh water has maximum density at 4oC (cooling forms ice) At 15oC the water at the ocean surface (S≈36 psu) has ≈26.7 kg/m3 which translates into a lower density =1026.7 kg/m3 compared to a temperature of 0oC. ...
File - Things of the World
... The South Atlantic Convergence Zone (SACZ): The SACZ controls rainfall in the southern subtropics and extends southeastward from the large continental convective zone of tropical South America. It is generated by moisture convergence between the South Atlantic high pressure zone and the continental ...
... The South Atlantic Convergence Zone (SACZ): The SACZ controls rainfall in the southern subtropics and extends southeastward from the large continental convective zone of tropical South America. It is generated by moisture convergence between the South Atlantic high pressure zone and the continental ...
Challenger expedition
The Challenger expedition of 1872–76 was a scientific exercise that made many discoveries to lay the foundation of oceanography. The expedition was named after the mother vessel, HMS Challenger.Prompted by Charles Wyville Thomson—of the University of Edinburgh and Merchiston Castle School—the Royal Society of London obtained the use of Challenger from the Royal Navy and in 1872 modified the ship for scientific work, equipping her with separate laboratories for natural history and chemistry. The expedition, led by Captain George Nares, sailed from Portsmouth, England, on 21 December 1872. Other naval officers included Commander John Maclear. Under the scientific supervision of Thomson himself, she travelled nearly 70,000 nautical miles (130,000 km) surveying and exploring. The result was the Report Of The Scientific Results of the Exploring Voyage of H.M.S. Challenger during the years 1873-76 which, among many other discoveries, catalogued over 4,000 previously unknown species. John Murray, who supervised the publication, described the report as ""the greatest advance in the knowledge of our planet since the celebrated discoveries of the fifteenth and sixteenth centuries"". Challenger sailed close to Antarctica, but not within sight of it.