1. From Basics to the Extremophiles
... The Pompeii worm (Alvinella pompejana) can survive an environment as hot as 80° C (176° F) — nearly hot enough to boil water. The worm’s rear end sits in water as hot as 80° C (176° F), while its head, which sticks out of the worm’s tube home, rests in water that is much cooler, about 22° C (72° F) ...
... The Pompeii worm (Alvinella pompejana) can survive an environment as hot as 80° C (176° F) — nearly hot enough to boil water. The worm’s rear end sits in water as hot as 80° C (176° F), while its head, which sticks out of the worm’s tube home, rests in water that is much cooler, about 22° C (72° F) ...
2.13 Divergent Plate Boundaries
... Mid-ocean ridges encircle the Earth like a seam on a baseball. These ridges form the longest and widest mountain chain in the world. ...
... Mid-ocean ridges encircle the Earth like a seam on a baseball. These ridges form the longest and widest mountain chain in the world. ...
The evolution of circum-Antarctic oceanic crust since cretaceous
... oceanic domains around Antarctica since Late Jurassic. On a geological timescale first-order changes in palaeo-climate, palaeo-oceanography and marine sedimentation are controlled by plate tectonics through the distribution of land masses and ocean basins (geometry and geography), the opening and cl ...
... oceanic domains around Antarctica since Late Jurassic. On a geological timescale first-order changes in palaeo-climate, palaeo-oceanography and marine sedimentation are controlled by plate tectonics through the distribution of land masses and ocean basins (geometry and geography), the opening and cl ...
Upwelling and Hydrothermal Vents
... seaweed and plankton, which provides food for fish, marine mammals, and birds. Upwelling generates some of the world’s most fertile ecosystems. In coastal regions the cold water welling up to the surface cools the air promotes the development of sea fog. ...
... seaweed and plankton, which provides food for fish, marine mammals, and birds. Upwelling generates some of the world’s most fertile ecosystems. In coastal regions the cold water welling up to the surface cools the air promotes the development of sea fog. ...
1 MAY 2011 Oceanography Ch. # 1 Introduction to Planet Earth 70.8
... continental crust is granitic , max. is about 70 km thick. The Asthenosphere is relatively hot, plastic-like, extends to 700 km depth. Isostatic Adjustment (vertical movement) . Oceanic crust floats deeper in the mantle than does continental. ...
... continental crust is granitic , max. is about 70 km thick. The Asthenosphere is relatively hot, plastic-like, extends to 700 km depth. Isostatic Adjustment (vertical movement) . Oceanic crust floats deeper in the mantle than does continental. ...
12.740 Paleoceanography
... 3. Appearance/disappearance events are typically one per million years, so resolution is comparable to paleomagnetic stratigraphy. C. There are almost no direct radiometric methods for dating DSDP sediments. People have tried K-Ar dating of ash layers (but these have proved unreliable due to diagen ...
... 3. Appearance/disappearance events are typically one per million years, so resolution is comparable to paleomagnetic stratigraphy. C. There are almost no direct radiometric methods for dating DSDP sediments. People have tried K-Ar dating of ash layers (but these have proved unreliable due to diagen ...
Creation-students
... teemed with these microscopic creatures-as evidenced by _________________________. • As _________________ began to occur in these small creatures they slowly poisoned themselves with highly reactive and toxic (to them) _____________________. ...
... teemed with these microscopic creatures-as evidenced by _________________________. • As _________________ began to occur in these small creatures they slowly poisoned themselves with highly reactive and toxic (to them) _____________________. ...
Plate Tectonics
... Developed by Alfred Wegner (1900’s) Believed continents were once all combined into one landmass he called Pangaea meaning “All Earth” Continents seemed to fit together like a jigsaw puzzle Explained why fossils of the same plants and animals are found on the coast of Africa and South Americ ...
... Developed by Alfred Wegner (1900’s) Believed continents were once all combined into one landmass he called Pangaea meaning “All Earth” Continents seemed to fit together like a jigsaw puzzle Explained why fossils of the same plants and animals are found on the coast of Africa and South Americ ...
QUIZ #4 – Questions covering lectures Atm4 and Oc1
... vertical diffusivity of heat through soils and rocks is much less than that through water, resulting in larger temperature variability over land. Most of the land is concentrated in the Northern hemisphere. 4. On the map showing the mean annual precipitation, which region appears driest, west or eas ...
... vertical diffusivity of heat through soils and rocks is much less than that through water, resulting in larger temperature variability over land. Most of the land is concentrated in the Northern hemisphere. 4. On the map showing the mean annual precipitation, which region appears driest, west or eas ...
Oceans
... can respond to this pull by moving towards the sun and moon. • As the earth turns on its axis whatever part of the ocean is closest to the moon bulges towards it, and experiences high tide. ...
... can respond to this pull by moving towards the sun and moon. • As the earth turns on its axis whatever part of the ocean is closest to the moon bulges towards it, and experiences high tide. ...
Oceanography Review! Told you it was short!
... 6. Due to landforms and the Earth’s rotation, ocean currents form huge circuits (circles) in the world’s oceans called what? 10. The oceans contain approximately _____________% of all the Earth’s water. ...
... 6. Due to landforms and the Earth’s rotation, ocean currents form huge circuits (circles) in the world’s oceans called what? 10. The oceans contain approximately _____________% of all the Earth’s water. ...
Global phosphorus cycle
... P as a limiting nutrient limits CO2 draw-down 2) Assessing paleoceanographic P levels Cd:Ca ratio in benthic forams as a proxy for DIP [Cd] is linearly correlated to [PO4] (DIP) in modern oceans. ...
... P as a limiting nutrient limits CO2 draw-down 2) Assessing paleoceanographic P levels Cd:Ca ratio in benthic forams as a proxy for DIP [Cd] is linearly correlated to [PO4] (DIP) in modern oceans. ...
Ocean Topography
... Plotting Data- D=VxT (divided by 2) Ocean Topography (labelling and identifying) -know how to draw both Atlantic and Pacific Ocean floor Continental shelf, slope and rise, trench, submarine canyon, seamount, guyot, mid-ocean ridge, rift valley, abyssal plain. Active Continental Margin vs Passive C ...
... Plotting Data- D=VxT (divided by 2) Ocean Topography (labelling and identifying) -know how to draw both Atlantic and Pacific Ocean floor Continental shelf, slope and rise, trench, submarine canyon, seamount, guyot, mid-ocean ridge, rift valley, abyssal plain. Active Continental Margin vs Passive C ...
RAIN FORESTS - Cobb Learning
... land; animals adapt the exposure of air and waves; snails, herons live here Neritic Zone- downward slope; warm water from sun; corals, sea turtles, fish, dolphins live here ...
... land; animals adapt the exposure of air and waves; snails, herons live here Neritic Zone- downward slope; warm water from sun; corals, sea turtles, fish, dolphins live here ...
11.1 OCEAN BASINS - STUDENT NOTES
... The __________ is the large, flat middle part, while the _______________________________ are the edges rising up to the land. Ocean Basins The largest changes to the ocean basin occur through the movement of ___________________, although there is also ___________ via storms, earthquakes and iceb ...
... The __________ is the large, flat middle part, while the _______________________________ are the edges rising up to the land. Ocean Basins The largest changes to the ocean basin occur through the movement of ___________________, although there is also ___________ via storms, earthquakes and iceb ...
Ocean Water - Perry Local Schools
... Ocean Currents • Surface currents: stream-like movements of water that occur at or near the surface of the ocean ...
... Ocean Currents • Surface currents: stream-like movements of water that occur at or near the surface of the ocean ...
Vocabulary for Matter Cycles
... Decomposer—Organisms such as bacteria, fungi, worms, etc., that break down dead plants and animals. Greenhouse gas—a gas that traps heat around the earth Ozone—a poisonous gas in the atmosphere that protects life from the harmful UV rays from the sun Matter—atoms Fossil fuel—coal, oil, or natural ga ...
... Decomposer—Organisms such as bacteria, fungi, worms, etc., that break down dead plants and animals. Greenhouse gas—a gas that traps heat around the earth Ozone—a poisonous gas in the atmosphere that protects life from the harmful UV rays from the sun Matter—atoms Fossil fuel—coal, oil, or natural ga ...
Chapter 4
... Alfred Wegener Continents can drift apart from one another and have done so in the past Pangea Greek word meaning “All Earth” Name for the single land mass that is the separate continents of today Panthelassa Name for the single ocean of the world that is the separate oceans of the world t ...
... Alfred Wegener Continents can drift apart from one another and have done so in the past Pangea Greek word meaning “All Earth” Name for the single land mass that is the separate continents of today Panthelassa Name for the single ocean of the world that is the separate oceans of the world t ...
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.