Lecture 3 - Introduction to Plate Tectonics
... (MOR) • From other data, we know the earth is not expanding • Crust must be destroyed somewhere ...
... (MOR) • From other data, we know the earth is not expanding • Crust must be destroyed somewhere ...
Introduction to Plate Tectonics
... (MOR) • From other data, we know the earth is not expanding • Crust must be destroyed somewhere ...
... (MOR) • From other data, we know the earth is not expanding • Crust must be destroyed somewhere ...
Lecture 3 - Introduction to Plate Tectonics
... (MOR) • From other data, we know the earth is not expanding • Crust must be destroyed somewhere ...
... (MOR) • From other data, we know the earth is not expanding • Crust must be destroyed somewhere ...
Introduction to Plate Tectonics - FAU
... (MOR) • From other data, we know the earth is not expanding • Crust must be destroyed somewhere ...
... (MOR) • From other data, we know the earth is not expanding • Crust must be destroyed somewhere ...
North American 2008 Cooling Attributed to Natural
... According to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, surface temperatures averaged over the NH during the second half of the 20th Century were very likely higher than during any other 50-year period since 1500. Most of the warming of both land and sea surface t ...
... According to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, surface temperatures averaged over the NH during the second half of the 20th Century were very likely higher than during any other 50-year period since 1500. Most of the warming of both land and sea surface t ...
RTF RTF
... interdisciplinary platform for ocean stakeholders from all sectors that encourages information exchange and co-operation to promote the protection and sustainable development of the world’s oceans. The foundation’s mission is to identify ocean stakeholders and their projects and to spread knowledge ...
... interdisciplinary platform for ocean stakeholders from all sectors that encourages information exchange and co-operation to promote the protection and sustainable development of the world’s oceans. The foundation’s mission is to identify ocean stakeholders and their projects and to spread knowledge ...
Joint Statement on Regional Ocean and Coastal Collaboration
... manage and protect our ocean and coastal resources on an ecosystem scale. Leon Panetta and Admiral James Watkins (former chairs of two national ocean commissions) have called for the creation and ongoing support of these efforts. An annual report card on ocean governance gave regional ocean partners ...
... manage and protect our ocean and coastal resources on an ecosystem scale. Leon Panetta and Admiral James Watkins (former chairs of two national ocean commissions) have called for the creation and ongoing support of these efforts. An annual report card on ocean governance gave regional ocean partners ...
Slide 1
... the natural cycles of major annual phytoplankton biomass and carbon production events. One example is the index of ‘month of maximum satellite chlorophyll concentration’, which was computed from a 9-year monthly SeaWiFS climatology. This reveals that the fall phytoplankton bloom (September and Octob ...
... the natural cycles of major annual phytoplankton biomass and carbon production events. One example is the index of ‘month of maximum satellite chlorophyll concentration’, which was computed from a 9-year monthly SeaWiFS climatology. This reveals that the fall phytoplankton bloom (September and Octob ...
Plate Tectonics
... Paper off the table Pencil Turn in FF: Earth’s Layers Corrections Review your notes & CLEAR OFF YOUR TABLE! ...
... Paper off the table Pencil Turn in FF: Earth’s Layers Corrections Review your notes & CLEAR OFF YOUR TABLE! ...
Key Action 3: Sustainable Marine Ecosystems
... Main MAST III (FP4) projects with relevance to the new FP5, EESD KA3 topics. Important note: the projects below were not aimed specifically to nor funded under the headings of FP5. Therefore their association to those headings is only orientative and has no official character. For a search of the pr ...
... Main MAST III (FP4) projects with relevance to the new FP5, EESD KA3 topics. Important note: the projects below were not aimed specifically to nor funded under the headings of FP5. Therefore their association to those headings is only orientative and has no official character. For a search of the pr ...
Wegener—Continental Drift
... Which of the following are technological advances that led to the acceptance of this theory and laid the ground work for plate tectonics? A. Sonar and magnetometers mapped the ocean floor and detected magnetic striping B. Satellites created communication networks for scientists on other continents C ...
... Which of the following are technological advances that led to the acceptance of this theory and laid the ground work for plate tectonics? A. Sonar and magnetometers mapped the ocean floor and detected magnetic striping B. Satellites created communication networks for scientists on other continents C ...
Lecture 4:the observed mean circulation
... •Currents are much stronger on the western than eastern side of ocean basins this is a phenomenon known as western intensification. •In these western boundary currents, the speed can exceed 100 cm/s •Flows in the center of the gyres is < 10 cm/s. ...
... •Currents are much stronger on the western than eastern side of ocean basins this is a phenomenon known as western intensification. •In these western boundary currents, the speed can exceed 100 cm/s •Flows in the center of the gyres is < 10 cm/s. ...
o L i S
... any baleen whales produce loud, low frequency calls. But what do these calls mean? When and why do whales produce particular calls? It is important to understand this, since more and more monitoring of endangered whale populations is being accomplished by listening to their vocalizations. By leaving ...
... any baleen whales produce loud, low frequency calls. But what do these calls mean? When and why do whales produce particular calls? It is important to understand this, since more and more monitoring of endangered whale populations is being accomplished by listening to their vocalizations. By leaving ...
Seafloor spreading and recycling of oceanic crust
... A scientist by the name of Harry Hess theorized that mid-ocean ridges mark structurally weak zones where the ocean floor was being ripped in two lengthwise along the ridge crest. New magma from deep within the Earth rises easily through these weak zones and eventually erupts along the crest of the r ...
... A scientist by the name of Harry Hess theorized that mid-ocean ridges mark structurally weak zones where the ocean floor was being ripped in two lengthwise along the ridge crest. New magma from deep within the Earth rises easily through these weak zones and eventually erupts along the crest of the r ...
Land & The Earth
... The theory that Earth’s continents move together and apart due to the moving crustal plates. Developed by Alfred Wegener. The supercontinent when all 7 are together is called Pangaea. It take approximately 225 million years for the continents to come together. ...
... The theory that Earth’s continents move together and apart due to the moving crustal plates. Developed by Alfred Wegener. The supercontinent when all 7 are together is called Pangaea. It take approximately 225 million years for the continents to come together. ...
Magnetic Field, Sea-floor Spreading, Deep
... (called magnetic reversal) Magnetic mineral grains line up in opposite direction of magnetic field ...
... (called magnetic reversal) Magnetic mineral grains line up in opposite direction of magnetic field ...
PhET Plate Tectonics Simulation Lab
... Look at your table for convergent boundaries. Three times the same two types of crust were used, but you switched what side they were on. What do you observe about the results? ______________ _____________________________________________________________________ Look for patterns in density, subducti ...
... Look at your table for convergent boundaries. Three times the same two types of crust were used, but you switched what side they were on. What do you observe about the results? ______________ _____________________________________________________________________ Look for patterns in density, subducti ...
pdf - University of California, Berkeley
... So, who cares? The encounter has had several amazing consequences. First, and most obvious, it resurfaced much of northern Nevada, Idaho, and Wyoming over the last several million years in basalt through a series of massive volcanic eruptions. Then there were the tremendous supervolcanic explosions, ...
... So, who cares? The encounter has had several amazing consequences. First, and most obvious, it resurfaced much of northern Nevada, Idaho, and Wyoming over the last several million years in basalt through a series of massive volcanic eruptions. Then there were the tremendous supervolcanic explosions, ...
Unit 1
... a. The oceans contain approximately 97.22% of the water on earth. b. Glaciers hold less than 2.15% of the earth’s water. c. Ground water makes up about .6% of the earth’s water. d. The atmosphere, lakes, rivers, etc… contain less than .01% of the earth’s water. e. There are 5 major ocean basins: Pac ...
... a. The oceans contain approximately 97.22% of the water on earth. b. Glaciers hold less than 2.15% of the earth’s water. c. Ground water makes up about .6% of the earth’s water. d. The atmosphere, lakes, rivers, etc… contain less than .01% of the earth’s water. e. There are 5 major ocean basins: Pac ...
Resolution XX-6
... freely at depths as great as 2,000 metres, rising to the surface every week or two to transmit data to shore via satellite, ...
... freely at depths as great as 2,000 metres, rising to the surface every week or two to transmit data to shore via satellite, ...
1.4 Powerpoint
... – Lots of new rock forming and very little place for old rock to go. – Connected to continents. As it spreads, it moves the continents and gets wider ...
... – Lots of new rock forming and very little place for old rock to go. – Connected to continents. As it spreads, it moves the continents and gets wider ...
Meetings
... of large-scale variables,” wrote Ryo Furue after an IPRC miniworkshop on ocean mixing in March 2009 (IPRC Climate, vol. 9, no. 1). From that meeting emerged a proposal for a project to investigate ocean mixing processes more closely. Recognizing the importance of ocean mixing, NASA funded the projec ...
... of large-scale variables,” wrote Ryo Furue after an IPRC miniworkshop on ocean mixing in March 2009 (IPRC Climate, vol. 9, no. 1). From that meeting emerged a proposal for a project to investigate ocean mixing processes more closely. Recognizing the importance of ocean mixing, NASA funded the projec ...
Unit 1 | Climate change and the marine environment
... or washed away. Although the full impact of changing ocean acidity is still being researched, shellfish and corals appear to be most immediately at risk. Through a chemical process, the higher acidity causes the shells of shellfish to become thinner and to grow more slowly. At a certain acidity leve ...
... or washed away. Although the full impact of changing ocean acidity is still being researched, shellfish and corals appear to be most immediately at risk. Through a chemical process, the higher acidity causes the shells of shellfish to become thinner and to grow more slowly. At a certain acidity leve ...
The Ocean Floor
... underwater mountains that are thousands of miles long. Located in the center of the oceans Volcanoes and earthquakes are very common along the ridges. ...
... underwater mountains that are thousands of miles long. Located in the center of the oceans Volcanoes and earthquakes are very common along the ridges. ...
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.