Earth Structure and Plate Tectonics
... Significant because hot spots do not move with tectonic plates because they originate in the mantle. Volcanic island chains, are the result of the plate moving over a hot spot. ...
... Significant because hot spots do not move with tectonic plates because they originate in the mantle. Volcanic island chains, are the result of the plate moving over a hot spot. ...
The Lithosphere… - Mr Vincent Science
... 1. Why do you think the asthenosphere is described as being plastic in nature? ...
... 1. Why do you think the asthenosphere is described as being plastic in nature? ...
Plate Tectonic Theory
... cool, strong and rigid layer. Its uppermost part is called the crust and is divided into oceanic and continental-type crusts discussed in the next section. Asthenosphere. The upper reaches of the mantle are not solid; they are considered plastic and flow very slowly. This is due to the reduction in ...
... cool, strong and rigid layer. Its uppermost part is called the crust and is divided into oceanic and continental-type crusts discussed in the next section. Asthenosphere. The upper reaches of the mantle are not solid; they are considered plastic and flow very slowly. This is due to the reduction in ...
Notes - Seawater Chemistry
... – Nitrogen gas can’t be used by organisms until it is attached to oxygen in a process called nitrogen fixation – Blue-green algae convert nitrogen gas to a useable form that animals need for building proteins and amino acids ...
... – Nitrogen gas can’t be used by organisms until it is attached to oxygen in a process called nitrogen fixation – Blue-green algae convert nitrogen gas to a useable form that animals need for building proteins and amino acids ...
Slide 1
... – Nitrogen gas can’t be used by organisms until it is attached to oxygen in a process called nitrogen fixation – Blue-green algae convert nitrogen gas to a useable form that animals need for building proteins and amino acids ...
... – Nitrogen gas can’t be used by organisms until it is attached to oxygen in a process called nitrogen fixation – Blue-green algae convert nitrogen gas to a useable form that animals need for building proteins and amino acids ...
Part 1 - cosee now
... Student Learning Map for Unit: The Foundation of Life in the Ocean (5.1) Key Learning(s): The theory of evolution is connected to the origins of energy and matter. Life began on Earth once the conditions became suitable. Life has the ability to adapt to many different conditions and stresses. There ...
... Student Learning Map for Unit: The Foundation of Life in the Ocean (5.1) Key Learning(s): The theory of evolution is connected to the origins of energy and matter. Life began on Earth once the conditions became suitable. Life has the ability to adapt to many different conditions and stresses. There ...
Study guide: exam #1
... Chapter 3: ~32% of exam o Theory of plate tectonics: definition o Continental drift hypothesis: definition; evidence; why this hypothesis was not accepted o Seafloor spreading hypothesis: definition; evidence; why this hypothesis was accepted o Earth’s magnetic field: fig. 3.4 o Magnetization of vo ...
... Chapter 3: ~32% of exam o Theory of plate tectonics: definition o Continental drift hypothesis: definition; evidence; why this hypothesis was not accepted o Seafloor spreading hypothesis: definition; evidence; why this hypothesis was accepted o Earth’s magnetic field: fig. 3.4 o Magnetization of vo ...
Plate Tectonics Review Sheet
... List and explain evidence that supports the hypothesis of continental drift. fit of continents - the continents fit together like puzzle pieces landforms (mountains) - half of a mountain range was on South American and the other half was on Africa fossils, and climate - matched across continents sea ...
... List and explain evidence that supports the hypothesis of continental drift. fit of continents - the continents fit together like puzzle pieces landforms (mountains) - half of a mountain range was on South American and the other half was on Africa fossils, and climate - matched across continents sea ...
Marine Dead Zones:
... What is a Marine Dead Zone? "Dead zone" is a more common term for hypoxia, which refers to a reduced level of oxygen in the water ...
... What is a Marine Dead Zone? "Dead zone" is a more common term for hypoxia, which refers to a reduced level of oxygen in the water ...
How and Where Volcanoes Form
... 1. Decreasing pressure can lower the melting temperatures of materials in the asthenosphere (ex. Rift valley/mid-ocean ridge) 2. Increasing temperatures can cause materials in the asthenosphere to melt. (ex. Hot spot) 3. Increasing water in the asthenosphere can lower melting temperatures (ex. Subdu ...
... 1. Decreasing pressure can lower the melting temperatures of materials in the asthenosphere (ex. Rift valley/mid-ocean ridge) 2. Increasing temperatures can cause materials in the asthenosphere to melt. (ex. Hot spot) 3. Increasing water in the asthenosphere can lower melting temperatures (ex. Subdu ...
Inside Earth - Davis` Dazzlers
... o At the mid-ocean ridge, molten material rises from the mantle and erupts. The molten material then spreads out, pushing older rock to both sides of the ridge. The molten rock cools and forms new land (salt) as the plates move. The older plate sinks below the other plate and can make mountains and/ ...
... o At the mid-ocean ridge, molten material rises from the mantle and erupts. The molten material then spreads out, pushing older rock to both sides of the ridge. The molten rock cools and forms new land (salt) as the plates move. The older plate sinks below the other plate and can make mountains and/ ...
Chemistry of the Oceans
... Born in Changhwa, Taiwan, on 22 April 1949, Prof. Chen-Tung Arthur Chen, his wife and two daughters are currently residing in Kaohsiung, where he has been Professor at the Institute of Marine Geology and Chemistry since 1986. After receiving his B.Sc. degree in Chemical Engineering from National Tai ...
... Born in Changhwa, Taiwan, on 22 April 1949, Prof. Chen-Tung Arthur Chen, his wife and two daughters are currently residing in Kaohsiung, where he has been Professor at the Institute of Marine Geology and Chemistry since 1986. After receiving his B.Sc. degree in Chemical Engineering from National Tai ...
Physiography of the Ocean Floor Distribution of topography and
... elevation 0.84 km Average ocean depth 3.8 km Deepest depth (Mariana Trench) more extreme than highest height (Mt. Everest) ...
... elevation 0.84 km Average ocean depth 3.8 km Deepest depth (Mariana Trench) more extreme than highest height (Mt. Everest) ...
Hydrogeochemistry
... oxides concentrated. Rare in surface water Fe2+ commonly precipitates as carbonate or sulfide depending on solution chemistry ...
... oxides concentrated. Rare in surface water Fe2+ commonly precipitates as carbonate or sulfide depending on solution chemistry ...
Ocean Currents
... • Surface currents transport heat energy from equator towards the poles • Currents also involved with gas exchanges, especially O2 and CO2 • Nutrient exchanges important within surface waters (including outflow from continents) and deeper waters (upwelling and downwelling) • Pollution dispersal • Im ...
... • Surface currents transport heat energy from equator towards the poles • Currents also involved with gas exchanges, especially O2 and CO2 • Nutrient exchanges important within surface waters (including outflow from continents) and deeper waters (upwelling and downwelling) • Pollution dispersal • Im ...
Plate Tectonics Review Sheet
... Divergent boundary – is when two plates move apart. Examples: The Great Rift Valley and Mid-Atlantic Ridge Transform boundary – is when two plates slide past each other. This area marked by cracking of the crust; many shallow earthquakes. Example: San Andreas Fault. Convergent boundary - Two pieces ...
... Divergent boundary – is when two plates move apart. Examples: The Great Rift Valley and Mid-Atlantic Ridge Transform boundary – is when two plates slide past each other. This area marked by cracking of the crust; many shallow earthquakes. Example: San Andreas Fault. Convergent boundary - Two pieces ...
Notes – Early Earth History
... Fossils from rock layers that are touching are more _____________________ than fossils from widely separated layers. The more recent a fossil was formed, the more it _____________________ a living organism. Precambrian Time Precambrian rocks are difficult to study because they have undergone _______ ...
... Fossils from rock layers that are touching are more _____________________ than fossils from widely separated layers. The more recent a fossil was formed, the more it _____________________ a living organism. Precambrian Time Precambrian rocks are difficult to study because they have undergone _______ ...
Plate Tectonics Review Sheet
... Divergent boundary – is when two plates move apart. Examples: The Great Rift Valley and Mid-Atlantic Ridge Transform boundary – is when two plates slide past each other. This area marked by cracking of the crust; many shallow earthquakes. Example: San Andreas Fault. Convergent boundary - Two pieces ...
... Divergent boundary – is when two plates move apart. Examples: The Great Rift Valley and Mid-Atlantic Ridge Transform boundary – is when two plates slide past each other. This area marked by cracking of the crust; many shallow earthquakes. Example: San Andreas Fault. Convergent boundary - Two pieces ...
Key concepts
... -know the difference between oceanic crust & continental crust -know how pressure and temperature change as you move through the layers of the earth and their effects on the behavior of rocks -know the internal source of heat inside the earth and how heat moves by conduction or convection -know how ...
... -know the difference between oceanic crust & continental crust -know how pressure and temperature change as you move through the layers of the earth and their effects on the behavior of rocks -know the internal source of heat inside the earth and how heat moves by conduction or convection -know how ...
Student Notes
... Not the same at every depth. There are three different temperature layers: a) Surface (mixed) layer b) Thermocline c) Deep Water ...
... Not the same at every depth. There are three different temperature layers: a) Surface (mixed) layer b) Thermocline c) Deep Water ...
Multiple-Choice Questions - Raleigh Charter High School
... z. tropical rain forest Most sea life is found in which area? w. On or above continental shelves x. In trenches y. Along mid-ocean ridges z. Near deep-sea hydrothermal vents Coastal upwelling results in ________. w. carbon dioxide-rich water surfacing x. warm water surfacing y. mixing of salt and fr ...
... z. tropical rain forest Most sea life is found in which area? w. On or above continental shelves x. In trenches y. Along mid-ocean ridges z. Near deep-sea hydrothermal vents Coastal upwelling results in ________. w. carbon dioxide-rich water surfacing x. warm water surfacing y. mixing of salt and fr ...
pdf
... Intermediate composi=on between basal=c and grani=c. Mid-‐plate islands – Originally of volcanic origin over hot spots. Basal=c composi=on. Oeen form chain tracing seafloor spreading over hot spot. Form cor ...
... Intermediate composi=on between basal=c and grani=c. Mid-‐plate islands – Originally of volcanic origin over hot spots. Basal=c composi=on. Oeen form chain tracing seafloor spreading over hot spot. Form cor ...
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.