Ch 16 - Marine and Coastal Systems-Outline
... a. The U.S. Geological Survey estimates that the world’s deposits of methane hydrates may hold twice as much carbon as all known deposits of oil, coal, and natural gas combined. b. Destabilizing a methane hydrate deposit could lead to a catastrophic release of gas, which could cause a massive landsl ...
... a. The U.S. Geological Survey estimates that the world’s deposits of methane hydrates may hold twice as much carbon as all known deposits of oil, coal, and natural gas combined. b. Destabilizing a methane hydrate deposit could lead to a catastrophic release of gas, which could cause a massive landsl ...
Introduction to Marine Life
... • Average ocean temp is 3 C • Colder temps reduce the metabolic rate • In very cold waters fish have a special protein like antifreeze to keep tissues from freezing • Lighter colored animals stay cooler than darker colored animals and are found in warmer waters • Some marine life have thick layers ...
... • Average ocean temp is 3 C • Colder temps reduce the metabolic rate • In very cold waters fish have a special protein like antifreeze to keep tissues from freezing • Lighter colored animals stay cooler than darker colored animals and are found in warmer waters • Some marine life have thick layers ...
ocean exploration: timeline
... The Titanic sinks after hitting an iceberg, killing 1,500 people. The tragedy led to efforts to develop an acoustic device to find objects ahead of a vessel. First Acoustic Exploration of the Seas ...
... The Titanic sinks after hitting an iceberg, killing 1,500 people. The tragedy led to efforts to develop an acoustic device to find objects ahead of a vessel. First Acoustic Exploration of the Seas ...
Minerals • Mineral is a substance that is: • Solid • Formed in Nature
... o Erosion – Moving the sediment from one place to another o Deposition – the sediment stops moving There are 3 types of rocks on earth o Igneous o Sedimentary o Metamorphic Each type of rock is formed by specific processes o Igneous – forms when magma cools (crystallization) o Metamorphic – heat ...
... o Erosion – Moving the sediment from one place to another o Deposition – the sediment stops moving There are 3 types of rocks on earth o Igneous o Sedimentary o Metamorphic Each type of rock is formed by specific processes o Igneous – forms when magma cools (crystallization) o Metamorphic – heat ...
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 ...
Outline
... • In the Pacific Ocean, called the East Pacific Rise • In the Atlantic Ocean, called the Mid-Atlantic Ridge The Mid-Atlantic Ridge • Traverses the center of the Atlantic Ocean • Contains a central down-dropped rift valley • Comes above sea level in Iceland Features of the mid-ocean ridge • Rift vall ...
... • In the Pacific Ocean, called the East Pacific Rise • In the Atlantic Ocean, called the Mid-Atlantic Ridge The Mid-Atlantic Ridge • Traverses the center of the Atlantic Ocean • Contains a central down-dropped rift valley • Comes above sea level in Iceland Features of the mid-ocean ridge • Rift vall ...
9693 MARINE SCIENCE MARK SCHEME for the May/June 2014 series
... This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began ...
... This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began ...
8_Ocean126_2006
... Ridges devoid of sediment Oceanic ridges and associated structures account for 22% of the world’s surface (compare to all land which is 29%!) < 60% of their length is at the center of basins Youngest rocks at spreading centers Steeper ridges at slower spreading centers ...
... Ridges devoid of sediment Oceanic ridges and associated structures account for 22% of the world’s surface (compare to all land which is 29%!) < 60% of their length is at the center of basins Youngest rocks at spreading centers Steeper ridges at slower spreading centers ...
Unit 1
... Two distinct types of crust cover the earth’s molten mantle: the continental crust and the oceanic crust. a. The continental crust is found beneath the continents and their margins. i. The average thickness is approximately 20-50 km. ii. It is composed mostly of granite, a material rich in aluminum, ...
... Two distinct types of crust cover the earth’s molten mantle: the continental crust and the oceanic crust. a. The continental crust is found beneath the continents and their margins. i. The average thickness is approximately 20-50 km. ii. It is composed mostly of granite, a material rich in aluminum, ...
2015 oceans Study Guide with Answers
... 54) area between the shoreline and the continental slope continental shelf 55) area between the continental shelf and the ocean floor ...
... 54) area between the shoreline and the continental slope continental shelf 55) area between the continental shelf and the ocean floor ...
Earth Science Chapter 20 20.1 The Water Planet 20.1 The Water
... •Often associated with the mouths of major rivers. •Other canyons may have been caused by turbidity currents. •The turbidity currents are dense currents that carry large amounts of sediments down the continental slope. Continental Rise. ...
... •Often associated with the mouths of major rivers. •Other canyons may have been caused by turbidity currents. •The turbidity currents are dense currents that carry large amounts of sediments down the continental slope. Continental Rise. ...
Chapter 19
... • Many of these life-forms have unusual adaptations that allow them to live in hostile environments. Ch 19-Section 2 Features of the Ocean Floor Learning Objectives: • Describe the main features of the continental margins. • Describe the main features of the deep-ocean basin Features of the Ocean Fl ...
... • Many of these life-forms have unusual adaptations that allow them to live in hostile environments. Ch 19-Section 2 Features of the Ocean Floor Learning Objectives: • Describe the main features of the continental margins. • Describe the main features of the deep-ocean basin Features of the Ocean Fl ...
Lecture 10 Plate Tectonics i
... relatively narrow zones, called rift zones, located at the crests of ocean ridges As plates pulled apart, low pressure causes mantle mellting,magma moves into fractures and makes new oceanic lithosphere ...
... relatively narrow zones, called rift zones, located at the crests of ocean ridges As plates pulled apart, low pressure causes mantle mellting,magma moves into fractures and makes new oceanic lithosphere ...
Tectonic Plate Boundaries Inquiry Lesson
... 9. Slide the plate across on top of the oceanic crust. a. Continent crusts slides over the top of the oceanic crust because it is less dense than the oceanic crust. (Continental/Oceanic Collision) 10. Take of the other oceanic crust and set it aside. 11. Take both gram crackers and set them side by ...
... 9. Slide the plate across on top of the oceanic crust. a. Continent crusts slides over the top of the oceanic crust because it is less dense than the oceanic crust. (Continental/Oceanic Collision) 10. Take of the other oceanic crust and set it aside. 11. Take both gram crackers and set them side by ...
Plate Tectonics - Purdue University
... Wegener’s ideas were rejected because: – His theory proposed no physical mechanism to move the continents – There was no direct measurement or quantitative proof that continents had moved – It was unclear how continents could move through ocean basins. ...
... Wegener’s ideas were rejected because: – His theory proposed no physical mechanism to move the continents – There was no direct measurement or quantitative proof that continents had moved – It was unclear how continents could move through ocean basins. ...
Continental Drift and Plate Tectonics
... underwater and is called the mid-ocean ridge? The Mid-Ocean Ridge system, shown above snaking its way between the continents, is more than 56,000 kilometers (35,000 mi) long. It circles the earth like the stitching on a baseball! ...
... underwater and is called the mid-ocean ridge? The Mid-Ocean Ridge system, shown above snaking its way between the continents, is more than 56,000 kilometers (35,000 mi) long. It circles the earth like the stitching on a baseball! ...
CD vs. PT
... underwater and is called the mid-ocean ridge? The Mid-Ocean Ridge system, shown above snaking its way between the continents, is more than 56,000 kilometers (35,000 mi) long. It circles the earth like the stitching on a baseball! ...
... underwater and is called the mid-ocean ridge? The Mid-Ocean Ridge system, shown above snaking its way between the continents, is more than 56,000 kilometers (35,000 mi) long. It circles the earth like the stitching on a baseball! ...
Name
... and thicken, which pushes the continental crust upward. b. Continental – Oceanic Collisions: when a plate with oceanic crust collides with a plate with continental crust, the denser oceanic crust sinks into the asthenosphere. c. Oceanic – Oceanic Collisions: when two oceanic plates collide, one of t ...
... and thicken, which pushes the continental crust upward. b. Continental – Oceanic Collisions: when a plate with oceanic crust collides with a plate with continental crust, the denser oceanic crust sinks into the asthenosphere. c. Oceanic – Oceanic Collisions: when two oceanic plates collide, one of t ...
Chapter 4.2 Plate Tectonics Theory
... When one plate collides with another. Three possible types of collisions, depending on if the plate has oceanic crust or continental crust as its leading edge. When oceanic crust collides with continental crust, the denser oceanic crust is subducted (forced under) the less dense continental crust. ...
... When one plate collides with another. Three possible types of collisions, depending on if the plate has oceanic crust or continental crust as its leading edge. When oceanic crust collides with continental crust, the denser oceanic crust is subducted (forced under) the less dense continental crust. ...
Plate Tectonics
... Plate Tectonics • A geological model in which the Earth's crust is divided into a number of rigid segments, plates, which constantly move atop of the mantle. ...
... Plate Tectonics • A geological model in which the Earth's crust is divided into a number of rigid segments, plates, which constantly move atop of the mantle. ...
REVIEW ARTICLE Microbial Diversity in Freshwater and Marine
... of Microbiology, St. Xavier’s College, Kathmandu, Nepal of Microbiology, Nobel College, Kathmandu, Nepal ...
... of Microbiology, St. Xavier’s College, Kathmandu, Nepal of Microbiology, Nobel College, Kathmandu, Nepal ...
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.