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The Grass is Greener in the Coastal Ocean
The Grass is Greener in the Coastal Ocean

... where water masses with stark differences in temperature or salt content intersect. There are several similar systems around the world—including the Yellow Sea and the Grand Banks—but no one has directly observed a means for providing nutrients in these areas. In the past few years, researchers have ...
Ch. 16 PowerPoint
Ch. 16 PowerPoint

... Fa'aliga Seamount is located at 13? 4.8' S, 175? 15.8' W and is part of the Samoa Hotspot Trail on the Pacific Plate. It is 2370 m in height with the top at -1585 m and the ocean bottom at -3955 m. It is very small with a volume of 356 km3. The seamount is moderately elongated in a southeast, northw ...
(1) the distribution of fossils on different continents
(1) the distribution of fossils on different continents

... • Most continental and oceanic floor features are the result of geological activity and earthquakes along plate boundaries. The exact patterns depend on whether: • the plates are converging (being pushed together) to create mountains or deep ocean trenches • (diverging) being pulled apart to form ne ...
Ocean Fertilization
Ocean Fertilization

... Plankton bloom induced by SERIES experiment in sub-arctic pacific in 2002, 19 days after initial addition of around 1 tonne of iron ...
Lecture Notes: Chapter 14 THE OCEAN FLOOR
Lecture Notes: Chapter 14 THE OCEAN FLOOR

... Gas hydrates are compact chemical structures ___________________________. ...
Oceanography
Oceanography

... features – Deep – Ocean Trench – when two plates come together and one goes into the mantle. – Abyssal Plains – Flat deep features – Seamounts/Guyouts – submerged volcanic peaks. ...
subduction subduction
subduction subduction

... • Normal faulting - rift valley basins • River and lake sediments – Red beds, siltstones, black shales – Fresh water and terrestrial fossils ...
Tectonic Plate Boundaries
Tectonic Plate Boundaries

... Think: Plates are movingmoving away, towards, or past each other! What happens?? ...
Plate Tectonics
Plate Tectonics

... have rocks of different character (age, type, fossils) than in surrounding regions. • Terranes form in another part of the world and are moved by plate motion to their present locations ...
CH 9 Plate tectonics
CH 9 Plate tectonics

... • 1915 – Alfred Wegener proposed his ...
Marine Ecosystems - Distribution Access
Marine Ecosystems - Distribution Access

Ocean Landforms
Ocean Landforms

... We will begin our journey where land meets the ocean. Do you know where we are? Yes. At the beach. Beaches are the fastest changing part of the ocean. They change with every wave. Back to Map ...
oceanlandforms
oceanlandforms

... We will begin our journey where land meets the ocean. Do you know where we are? Yes. At the beach. Beaches are the fastest changing part of the ocean. They change with every wave. Back to Map ...
Plate Tectonics Review Worksheet
Plate Tectonics Review Worksheet

... 1. Continental Drift: A theory proposed by Alfred Wegner that said all continents were once joined 300 million years ago in a single land mass called Pangaea. Over time the continents moved to their present day locations. 2. What are four pieces of evidence for continental drift? Fossils, puzzle fit ...
Paleo Lecture 1 - Tarleton State University
Paleo Lecture 1 - Tarleton State University

... 67. The ? are sarcodinans that move by pseudopodia. A.foraminiferans B.dinoflagellates C.bacillariophytes D.receptaculitids E.haptophytes 68. The ? are "glass sponges". A.Demospongia B.Calcarea C.Hexactinellida D.Archaeocyatha E.Sclerospongiae 69. The tests of radiolarians is composed of A.calcium c ...
23.2 Features of Ocean Floor Notes (Student Copy)
23.2 Features of Ocean Floor Notes (Student Copy)

... Water seeps into cracks in ocean floor, becomes _________________ & dissolves minerals, shoots out of vents, minerals precipitate back out 1st ones were discovered near _________________ Islands Black smoker chimney – “smoke” is superheated (350oC or _____oF) fluids filled with dark _______________ ...
Key concepts
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 ...
Ecosystem
Ecosystem

... the environment. It is the study of how organisms adapt to their environment and in turn alter it. ...
Week 1
Week 1

... ► After WWII some bathymetric data becam available (it was not public but it was available to some scientists. ► Radiometric dating was available ► Due to submarine navigation in WWII, bathimetry studies were done. ► Radar systems were used so militaries wanted to know more about magnetic field. ► P ...
Carbon Cycle Background
Carbon Cycle Background

... disrupt that balance. In this case, the result is an increase in atmospheric levels of CO2. In some cases, carbon cycles very slowly – it may take as long as millions of years for carbon to move from racks to the atmosphere or back into deep sediments. In other cases, carbon can cycle quickly at the ...
Unit 1 Notes
Unit 1 Notes

... Rocks contain clues that tell us about the environment that they were formed in.  Example: Rock with shells formed in a shallow ocean environment. Volcanic rock formed near a volcano ...
Geological maps
Geological maps

... • Continental shelf = portion of the continental crust that is submerged • Continental slope = the marked change in slope of the ocean floor that indicates the change from continental crust to oceanic crust • Deep sea fan = a “fan shaped” pile of sediment off shore of major rivers (Amazon, Ganges, e ...
Chapter One
Chapter One

... exploration of marine environment when scuba is not an option; these ROV’s can be manned (such as Alvin mentioned in chapter 1 readings) or unmanned. ...
Mr. Perfect UNDER THE SEA
Mr. Perfect UNDER THE SEA

... rivers run into the ocean. Salinity levels are also affected by animals such as clams and oysters that use calcium salts to build their shells. They remove salt from the water. In warm ocean areas where there is little rainfall and much evaporation, the amount of dissolved salts is much greater. In ...
Inside EArth 1-5 Worksheets 2013
Inside EArth 1-5 Worksheets 2013

... Convergent Boundary – 2 plates c___________ together Can be continental plates, oceanic Plates or both. (Himalayas) ...
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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.
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