GEO/OC 103 Exploring the Deep… Lab 2
... The earliest forms of life — blue-green algae — developed in the oceans, where water offered protection from the harmful ultraviolet (UV) radiation that penetrated Earth’s early atmosphere. Through the process of photosynthesis, these organisms produced their own food using carbon dioxide, water, and ...
... The earliest forms of life — blue-green algae — developed in the oceans, where water offered protection from the harmful ultraviolet (UV) radiation that penetrated Earth’s early atmosphere. Through the process of photosynthesis, these organisms produced their own food using carbon dioxide, water, and ...
GEOL 4110 Advanced Earth Science For Teachers Jim Miller
... GEOL 4110 Advanced Earth Science For Teachers ...
... GEOL 4110 Advanced Earth Science For Teachers ...
GEF4400 “The Earth System”
... water at high latitudes, and the Coriolis force generated by the earth's rotation. Frictional stress at the interface between the ocean and the wind causes the water to move in the direction of the wind. • Large surface ocean currents are a response of the atmosphere and ocean to the flow of energy ...
... water at high latitudes, and the Coriolis force generated by the earth's rotation. Frictional stress at the interface between the ocean and the wind causes the water to move in the direction of the wind. • Large surface ocean currents are a response of the atmosphere and ocean to the flow of energy ...
Ocean - abyss of time planet earth
... Mid-ocean ridges are the site of the most active volcanism and frequent earthquakes on our planet. As such they provide a unique natural laboratory for long-term monitoring of the interaction between submarine volcanoes, earthquakes, and changes in physical conditions in the deep ocean. For example ...
... Mid-ocean ridges are the site of the most active volcanism and frequent earthquakes on our planet. As such they provide a unique natural laboratory for long-term monitoring of the interaction between submarine volcanoes, earthquakes, and changes in physical conditions in the deep ocean. For example ...
Press Release - English ()
... Interested individuals can engage with the mission by guessing the temperature limit of life under the seafloor in the Deep Carbon Observatory’s “How hot is too hot?” contest at https://deepcarbon.net/feature/how-hot-is-too-hot. Limits to life “We know the microbial biomass living under the seafloor ...
... Interested individuals can engage with the mission by guessing the temperature limit of life under the seafloor in the Deep Carbon Observatory’s “How hot is too hot?” contest at https://deepcarbon.net/feature/how-hot-is-too-hot. Limits to life “We know the microbial biomass living under the seafloor ...
Hypoxia off the Pacific Northwest Coast
... The repeated hypoxic events of recent years suggest a fundamental shift in ocean conditions off the Pacific Northwest coast. These changes are complex and may include either oceanic or atmospheric changes or both. New results from other researchers show slight but wide-spread depletion of oxygen con ...
... The repeated hypoxic events of recent years suggest a fundamental shift in ocean conditions off the Pacific Northwest coast. These changes are complex and may include either oceanic or atmospheric changes or both. New results from other researchers show slight but wide-spread depletion of oxygen con ...
Plate Motions Activity
... 1. Make a copy of the isochron map (Black and White is OK) and using scissors remove seafloor that is less than 40 Ma (Red and Orange color). 2. Make a reconstruction of the Earth at 40 Ma by putting the remaining map pieces back together at the ridge boundaries assuming that Antarctica is stationar ...
... 1. Make a copy of the isochron map (Black and White is OK) and using scissors remove seafloor that is less than 40 Ma (Red and Orange color). 2. Make a reconstruction of the Earth at 40 Ma by putting the remaining map pieces back together at the ridge boundaries assuming that Antarctica is stationar ...
Chapter 13: Water and the Lithosphere Preview
... accumulated in rock over the eons is enormous, 1022 g; the turnover time is 200 million years. It is this part of the cycle that we are accelerating by burning fossil fuels. Even though fossil fuel deposits account for less than 1% of buried reduced carbon (Figure 7.1, p. ?), the rate of oxidation i ...
... accumulated in rock over the eons is enormous, 1022 g; the turnover time is 200 million years. It is this part of the cycle that we are accelerating by burning fossil fuels. Even though fossil fuel deposits account for less than 1% of buried reduced carbon (Figure 7.1, p. ?), the rate of oxidation i ...
Plate Tectonics Study Guide: Answer key
... o Describe new evidence that lead to today’s Theory of Plate Tectonics Sea Floor Spreading: Found mid ocean ridges and trenches. Rock near center of mid ocean ridge was younger than rock near trench. ...
... o Describe new evidence that lead to today’s Theory of Plate Tectonics Sea Floor Spreading: Found mid ocean ridges and trenches. Rock near center of mid ocean ridge was younger than rock near trench. ...
Document
... • East Africa may be the site of the Earth's next major ocean. Plate interactions in the region provide scientists an opportunity to study first hand how the Atlantic may have begun to form about 200 million years ago. Geologists believe that, if spreading continues, the three plates that meet at t ...
... • East Africa may be the site of the Earth's next major ocean. Plate interactions in the region provide scientists an opportunity to study first hand how the Atlantic may have begun to form about 200 million years ago. Geologists believe that, if spreading continues, the three plates that meet at t ...
The Face of the Earth Continents and Oceans
... • Interactive Dynamic Processes at the Surface • Roles of the atmosphere (gases, winds, climate), ocean (rivers, waves, currents) and biology (cycles of growth and consumption) • Internal Dynamic Processes • Driven by the Earth’s radioactive heat • Energy release to the surface • Influences on Conti ...
... • Interactive Dynamic Processes at the Surface • Roles of the atmosphere (gases, winds, climate), ocean (rivers, waves, currents) and biology (cycles of growth and consumption) • Internal Dynamic Processes • Driven by the Earth’s radioactive heat • Energy release to the surface • Influences on Conti ...
ANTARCTIC CIRCUMNAVIGATION EXPEDITION
... Evaluating carbon storage capacity in seabed organisms ...
... Evaluating carbon storage capacity in seabed organisms ...
Global-scale variations of the ratios of carbon to phosphorus in
... phosphorus in exported marine organic matter Yi-Cheng Teng1, François W. Primeau1*, J. Keith Moore1, Michael W. Lomas2 and Adam C. Martiny1,3 The ratio of carbon (C) to phosphorus (P) in marine phytoplankton is thought to be constant throughout the worlds’ oceans. Known as the Redfield ratio1 , this ...
... phosphorus in exported marine organic matter Yi-Cheng Teng1, François W. Primeau1*, J. Keith Moore1, Michael W. Lomas2 and Adam C. Martiny1,3 The ratio of carbon (C) to phosphorus (P) in marine phytoplankton is thought to be constant throughout the worlds’ oceans. Known as the Redfield ratio1 , this ...
Letter to the Author
... Africa, India, Australia, and part of South America were burdened with great ice sheets, while at the same time a tropical rain forest covered North America, Europe, and China. At various other times, there was sufficient vegetation in Alaska and Antarctica for coal desposits to have resulted, and s ...
... Africa, India, Australia, and part of South America were burdened with great ice sheets, while at the same time a tropical rain forest covered North America, Europe, and China. At various other times, there was sufficient vegetation in Alaska and Antarctica for coal desposits to have resulted, and s ...
Chapter 7 Review - Plate Tectonics
... and you must know for your test. In addition to completing this review, you should look over your notes, worksheets, the book, and any other material given. EVERYTHING we discussed and learned about should be studied. 1. Use the circle below to create a model of Earth’s interior. Label and color eac ...
... and you must know for your test. In addition to completing this review, you should look over your notes, worksheets, the book, and any other material given. EVERYTHING we discussed and learned about should be studied. 1. Use the circle below to create a model of Earth’s interior. Label and color eac ...
Oceanographic Autonomous Observations
... used to increase the effectiveness of science education? ...
... used to increase the effectiveness of science education? ...
Stream 1.2 Oceans and marine ice in the Southern Hemisphere
... Stream 1.2 Oceans and marine ice in the Southern Hemisphere Stream goal To understand the extent of large-scale physical, biological and biogeochemical change occurring in the Southern Ocean and marine ice environment (including ice shelves, sea ice and icebergs), and to attribute the cause(s) to an ...
... Stream 1.2 Oceans and marine ice in the Southern Hemisphere Stream goal To understand the extent of large-scale physical, biological and biogeochemical change occurring in the Southern Ocean and marine ice environment (including ice shelves, sea ice and icebergs), and to attribute the cause(s) to an ...
part 1 - North Pacific Marine Science Organization
... One of the inherent assumptions associated with this technique is that all Th species in the dissolved phase are subject to extraction by the MnO2. An inter-calibration between the cartridge technique and a small-volume co-precipitation technique was carried out to test this assumption. It was d ...
... One of the inherent assumptions associated with this technique is that all Th species in the dissolved phase are subject to extraction by the MnO2. An inter-calibration between the cartridge technique and a small-volume co-precipitation technique was carried out to test this assumption. It was d ...
as PDF
... they’d seen. Now, the moment a discovery is made, scientists can virtually step aboard the ship and share findings in real time as well as help direct the minute-by-minute operations. This is a voyage of discovery everyone can make,” said Dr. Ballard, a National Geographic Society Explorer-in-Reside ...
... they’d seen. Now, the moment a discovery is made, scientists can virtually step aboard the ship and share findings in real time as well as help direct the minute-by-minute operations. This is a voyage of discovery everyone can make,” said Dr. Ballard, a National Geographic Society Explorer-in-Reside ...
Plate Tectonics
... Probably died by falling into a crevice When digging in Greenland, when you are are deep as you are going to go, one yells “I’ve found Wegener”. Theory widely accepted in early 1960’s ...
... Probably died by falling into a crevice When digging in Greenland, when you are are deep as you are going to go, one yells “I’ve found Wegener”. Theory widely accepted in early 1960’s ...
Ocean - International Year of Planet Earth
... Mid-ocean ridges are the site of the most active volcanism and frequent earthquakes on our planet. As such they provide a unique natural laboratory for long-term monitoring of the interaction between submarine volcanoes, earthquakes, and changes in physical conditions in the deep ocean. For example ...
... Mid-ocean ridges are the site of the most active volcanism and frequent earthquakes on our planet. As such they provide a unique natural laboratory for long-term monitoring of the interaction between submarine volcanoes, earthquakes, and changes in physical conditions in the deep ocean. For example ...
Marine Environmental Prediction in the Atlantic Coastal Region
... time. Increased communication bandwidth allows better video. More people want to take part in ROPOS dives than can be accommodated on even large support vessels. In 2006 CSSF plans to bring live ROPOS video and two-way audio to users ashore. A gyro-stabilized shipboard Ku-band antenna will send full ...
... time. Increased communication bandwidth allows better video. More people want to take part in ROPOS dives than can be accommodated on even large support vessels. In 2006 CSSF plans to bring live ROPOS video and two-way audio to users ashore. A gyro-stabilized shipboard Ku-band antenna will send full ...
Zone
... 80% of all Americans live within an hour’s drive from an ocean or the Great Lakes 8 of the 10 largest cities are in coastal environments ...
... 80% of all Americans live within an hour’s drive from an ocean or the Great Lakes 8 of the 10 largest cities are in coastal environments ...
Stream 1.2 Oceans and marine ice in the Southern Hemisphere
... Determine extent to which eddies act to compensate wind-driven changes in influence of overturning on airsea C exchange (and over what time-scale). ...
... Determine extent to which eddies act to compensate wind-driven changes in influence of overturning on airsea C exchange (and over what time-scale). ...
Chapter 14 The Ocean Floor
... were drained from the ocean. What would we see? Plains? Mountains? Canyons? Plateaus? You may be surprised to find that the ocean conceals all of these features, and more. The Blue Planet Look at Figure 1. You can see why the “blue planet” or the “water planet” are appropriate nicknames for Earth. N ...
... were drained from the ocean. What would we see? Plains? Mountains? Canyons? Plateaus? You may be surprised to find that the ocean conceals all of these features, and more. The Blue Planet Look at Figure 1. You can see why the “blue planet” or the “water planet” are appropriate nicknames for Earth. N ...
Ocean acidification
Ocean acidification is the ongoing decrease in the pH of the Earth's oceans, caused by the uptake of carbon dioxide (CO2) from the atmosphere. An estimated 30–40% of the carbon dioxide from human activity released into the atmosphere dissolves into oceans, rivers and lakes. To achieve chemical equilibrium, some of it reacts with the water to form carbonic acid. Some of these extra carbonic acid molecules react with a water molecule to give a bicarbonate ion and a hydronium ion, thus increasing ocean acidity (H+ ion concentration). Between 1751 and 1994 surface ocean pH is estimated to have decreased from approximately 8.25 to 8.14, representing an increase of almost 30% in H+ ion concentration in the world's oceans. Since current and projected ocean pH levels are above 7.0, the oceans are technically alkaline now and will remain so; referring to this effect as ""decreasing ocean alkalinity"" would be equally correct if less politically useful. Earth System Models project that within the last decade ocean acidity exceeded historical analogs and in combination with other ocean biogeochemical changes could undermine the functioning of marine ecosystems and disrupt the provision of many goods and services associated with the ocean.Increasing acidity is thought to have a range of possibly harmful consequences, such as depressing metabolic rates and immune responses in some organisms, and causing coral bleaching. This also causes decreasing oxygen levels as it kills off algae.Other chemical reactions are triggered which result in a net decrease in the amount of carbonate ions available. This makes it more difficult for marine calcifying organisms, such as coral and some plankton, to form biogenic calcium carbonate, and such structures become vulnerable to dissolution. Ongoing acidification of the oceans threatens food chains connected with the oceans. As members of the InterAcademy Panel, 105 science academies have issued a statement on ocean acidification recommending that by 2050, global CO2 emissions be reduced by at least 50% compared to the 1990 level.Ocean acidification has been called the ""evil twin of global warming"" and ""the other CO2 problem"".Ocean acidification has occurred previously in Earth's history. The most notable example is the Paleocene-Eocene Thermal Maximum (PETM), which occurred approximately 56 million years ago. For reasons that are currently uncertain, massive amounts of carbon entered the ocean and atmosphere, and led to the dissolution of carbonate sediments in all ocean basins.