plate tectonics notes File
... tectonics that suggests that the outer layer of the Earth, the lithosphere, is composed of several rigid, large plates that move relative to one another by sliding on a weak layer, the asthenosphere in the upper mantle; continents and ocean basins are passive riders on these plates. This is a unifyi ...
... tectonics that suggests that the outer layer of the Earth, the lithosphere, is composed of several rigid, large plates that move relative to one another by sliding on a weak layer, the asthenosphere in the upper mantle; continents and ocean basins are passive riders on these plates. This is a unifyi ...
Plate Tectonics Online Simulation Copy and paste the following
... 7. Click on the “Plate Motion” tab at the top of the window. 8. In the “View Box” click “Both” and “Show Labels”. 9. At the top, make sure you are on Manual Mode. 10. Click and drag the continental crust to the right side and the young oceanic crust to the left, then click “Seawater” in the “View B ...
... 7. Click on the “Plate Motion” tab at the top of the window. 8. In the “View Box” click “Both” and “Show Labels”. 9. At the top, make sure you are on Manual Mode. 10. Click and drag the continental crust to the right side and the young oceanic crust to the left, then click “Seawater” in the “View B ...
chapter 3
... - Some forty or so areas of spatially fixed, long-term volcanic activity have been identified on Earth, and are called hot spots (fig. 3.34). - Hot spot magmas change composition indicating that they may originate at different source depths in the mantle. The life span of a typical hot spot is about ...
... - Some forty or so areas of spatially fixed, long-term volcanic activity have been identified on Earth, and are called hot spots (fig. 3.34). - Hot spot magmas change composition indicating that they may originate at different source depths in the mantle. The life span of a typical hot spot is about ...
Student Study Guide
... - Some forty or so areas of spatially fixed, long-term volcanic activity have been identified on Earth, and are called hot spots (fig. 3.34). - Hot spot magmas change composition indicating that they may originate at different source depths in the mantle. The life span of a typical hot spot is about ...
... - Some forty or so areas of spatially fixed, long-term volcanic activity have been identified on Earth, and are called hot spots (fig. 3.34). - Hot spot magmas change composition indicating that they may originate at different source depths in the mantle. The life span of a typical hot spot is about ...
View Sample
... It lies under all the oceans of the earth It is the thinnest part of the crust, its thickness an average of 8km Oceanic crust is heavy (heavier than continental) Most common rock is basalt Rocks of the oceanic crust are often referred to as sima this refers to their most common mineral components si ...
... It lies under all the oceans of the earth It is the thinnest part of the crust, its thickness an average of 8km Oceanic crust is heavy (heavier than continental) Most common rock is basalt Rocks of the oceanic crust are often referred to as sima this refers to their most common mineral components si ...
Continental Drift and Plate Tectonics
... • A place where two plates come together • Crust is destroyed due to subduction (edge of plate sinks under another plate into the mantle) • Collisions happen between: 1. Oceanic/Continental ...
... • A place where two plates come together • Crust is destroyed due to subduction (edge of plate sinks under another plate into the mantle) • Collisions happen between: 1. Oceanic/Continental ...
The Ocean Acidification Initiative Goal: $2.5 million
... low. There is an urgent need to better understand this changing ocean chemistry and the impacts on Gulf of Maine organisms and the ecosystem. Woods Hole Oceanographic investigators in a broad array of disciplines have been working on climate, CO2 and ocean acidification research for decades. Our sci ...
... low. There is an urgent need to better understand this changing ocean chemistry and the impacts on Gulf of Maine organisms and the ecosystem. Woods Hole Oceanographic investigators in a broad array of disciplines have been working on climate, CO2 and ocean acidification research for decades. Our sci ...
Divergent Plate Boundaries
... Magma rises, cools and forms new lithosphere Typically expressed as mid-oceanic ridges ...
... Magma rises, cools and forms new lithosphere Typically expressed as mid-oceanic ridges ...
Chapter 31
... “Oceanographers use salinity -- the amount (in grams) of total dissolved salts present in 1 kilogram of water -- to express the salt content of seawater. Normal seawater has a salinity of 35 grams/kilogram (or liter) of water -- also expressed as 35‰. Seawater from Wormly in southern England is use ...
... “Oceanographers use salinity -- the amount (in grams) of total dissolved salts present in 1 kilogram of water -- to express the salt content of seawater. Normal seawater has a salinity of 35 grams/kilogram (or liter) of water -- also expressed as 35‰. Seawater from Wormly in southern England is use ...
GLOBAL DISTRIBUTIONS OF ATMOSPHERIC CARBON DIOXIDE
... by anthropogenic sources which predominate in the northern hemisphere at peak emission rates. At most, a difference of some 20ppm was predicted between the hemispheres, much less than the changes which can be induced in global-mean concentrations by fossil fuel burning over the coming century. While ...
... by anthropogenic sources which predominate in the northern hemisphere at peak emission rates. At most, a difference of some 20ppm was predicted between the hemispheres, much less than the changes which can be induced in global-mean concentrations by fossil fuel burning over the coming century. While ...
Reduction of nitrogen compounds in oceanic basement and its
... most cases still related to the original convection at the spreading ridge axis, although off-axis hydrothermal systems driven by exothermic hydration processes do exist in ultramafic rocks (< 45% SiO2). One example is the Lost City hydrothermal system near the Mid-Atlantic Ridge [11,12]. Results fr ...
... most cases still related to the original convection at the spreading ridge axis, although off-axis hydrothermal systems driven by exothermic hydration processes do exist in ultramafic rocks (< 45% SiO2). One example is the Lost City hydrothermal system near the Mid-Atlantic Ridge [11,12]. Results fr ...
IMBER Update
... that humans have played a major role in the observed global warming through the release of greenhouse gases. Global atmospheric concentrations of carbon dioxide, methane, and nitrous oxide have increased markedly as a result of human activities related primarily to fossil fuel consumption, land-use ...
... that humans have played a major role in the observed global warming through the release of greenhouse gases. Global atmospheric concentrations of carbon dioxide, methane, and nitrous oxide have increased markedly as a result of human activities related primarily to fossil fuel consumption, land-use ...
The Ocean Floor
... The continents lie on the continental plates. The edges of these plates are under water, and they form the continental shelves. These shelves slope outward very gently towards the ocean depths. In some places these shelves go out a long way, up to 900 miles: In other places the shelves are much narr ...
... The continents lie on the continental plates. The edges of these plates are under water, and they form the continental shelves. These shelves slope outward very gently towards the ocean depths. In some places these shelves go out a long way, up to 900 miles: In other places the shelves are much narr ...
Plate Tectonics
... When Two Continental Plates Converge When two continental plates converge, one plate will be forced only slightly under the other, but no subduction will take place. Thus, the pressing together of two plates will fold the crust and forms what we known as fold mountains. More well-know examples of f ...
... When Two Continental Plates Converge When two continental plates converge, one plate will be forced only slightly under the other, but no subduction will take place. Thus, the pressing together of two plates will fold the crust and forms what we known as fold mountains. More well-know examples of f ...
The dynamics of a saltwater marine lake
... Namely, bottom salinity surpassed 38.5 in 2003 and 2004 (Malej et al., 2007) and maintaining those values until 2008 (Cuculić et al., 2009). Through the examination of salinity profiles, Buljan & Špan (1976) proved the existence of the karstic submarine channel between LL and the outer sea. Furtherm ...
... Namely, bottom salinity surpassed 38.5 in 2003 and 2004 (Malej et al., 2007) and maintaining those values until 2008 (Cuculić et al., 2009). Through the examination of salinity profiles, Buljan & Špan (1976) proved the existence of the karstic submarine channel between LL and the outer sea. Furtherm ...
Real time ocean data in the classroom.
... n this fast-paced world, students are using the internet to obtain information quicker than they can drive to the library. To apply students’ savvy internet skills in the science classroom—as well as capture their interest in science and investigation, and provide opportunities for authentic researc ...
... n this fast-paced world, students are using the internet to obtain information quicker than they can drive to the library. To apply students’ savvy internet skills in the science classroom—as well as capture their interest in science and investigation, and provide opportunities for authentic researc ...
Coleman (R. G.). Ophiolites : Ancient Oceanic Litho-
... others, often of greater significance in the development of the ophiolite saga, are omitted or receive only brief mention. My major comment, however, is about the data the author has seen fit to include and more significantly what he has omitted. For instance, I found the detailed treatment of major ...
... others, often of greater significance in the development of the ophiolite saga, are omitted or receive only brief mention. My major comment, however, is about the data the author has seen fit to include and more significantly what he has omitted. For instance, I found the detailed treatment of major ...
1 Lecture 12 - What Controls the Composition of River Water and
... There is a myriad of aluminosilicate reactions involving all the major cations. You can see that in general, during weathering, a structured aluminosilicate (feldspar) is converted into a cation-poor, degraded aluminosilicate (clay), cations and silicic acid go into solution, CO2(g) is consumed and ...
... There is a myriad of aluminosilicate reactions involving all the major cations. You can see that in general, during weathering, a structured aluminosilicate (feldspar) is converted into a cation-poor, degraded aluminosilicate (clay), cations and silicic acid go into solution, CO2(g) is consumed and ...
Convergent Plate Boundaries
... plates (Fig. 23). The collision of the plates began over 40 million years ago when India smashed into the belly of Asia. Continental lithosphere is relatively light and is deformed adjacent to subduction zones rather than consumed. ...
... plates (Fig. 23). The collision of the plates began over 40 million years ago when India smashed into the belly of Asia. Continental lithosphere is relatively light and is deformed adjacent to subduction zones rather than consumed. ...
Cold Seeps - USF College of Marine Science
... total darkness and sometimes appear as oases of life in an otherwise desert-like region ...
... total darkness and sometimes appear as oases of life in an otherwise desert-like region ...
Pacific Decadal Oscillation
... PDO is a pattern of Pacific climate variability that shifts phases on at least inter-decadal time scale, usually about 20 to 30 years PDO provokes a faunal regime shift, where the animals found most abundantly change in cold to warm and warm to cold shifts. Cold - crab, shrimp, herring, capelin Warm ...
... PDO is a pattern of Pacific climate variability that shifts phases on at least inter-decadal time scale, usually about 20 to 30 years PDO provokes a faunal regime shift, where the animals found most abundantly change in cold to warm and warm to cold shifts. Cold - crab, shrimp, herring, capelin Warm ...
Anoxic event
Oceanic anoxic events or anoxic events (Anoxia conditions) refer to intervals in the Earth's past where portions of oceans become depleted in oxygen (O2) at depths over a large geographic area. During some of these events, euxinia develops - euxinia refers to anoxic waters that contain H2S hydrogen sulfide. Although anoxic events have not happened for millions of years, the geological record shows that they happened many times in the past. Anoxic events coincide with several mass extinctions and may contribute to these events. These mass extinctions include some that geobiologists use as time markers in biostratigraphic dating. It is believed oceanic anoxic events are strongly linked to slowing of ocean circulation, climatic warming and elevated levels of greenhouse gases. Enhanced volcanism (through the release of CO2 and other greenhouse gases) is the proposed central external trigger for the development of these events.