Global Microscope Presentation
... given time of year. The maps show daytime land surface temperature anomalies for a given month compared to the average conditions during that period between 2000-2008. Places that were warmer than average are red, places that were near normal are white, and places that were cooler than average are b ...
... given time of year. The maps show daytime land surface temperature anomalies for a given month compared to the average conditions during that period between 2000-2008. Places that were warmer than average are red, places that were near normal are white, and places that were cooler than average are b ...
The Origins of Plate Tectonics Theory
... Today, much of the evidence concerning plate tectonics is acquired with satellite technology. Through use of the global positioning system (GPS) and other satellite-based data collection techniques, scientists can directly measure the velocity (or speed and direction of movement) of plates on Earth’ ...
... Today, much of the evidence concerning plate tectonics is acquired with satellite technology. Through use of the global positioning system (GPS) and other satellite-based data collection techniques, scientists can directly measure the velocity (or speed and direction of movement) of plates on Earth’ ...
Linking the world`s oceans: the Antarctic Circumpolar Current
... New Zealand’s interesting geology but that I knew very little about the vast oceans surrounding our country. So this year I decided to study ocean circulation, with NIWA marine physicist Mike Williams as my supervisor. My home is in Nelson so I have spent the year going between the NIWA campuses in ...
... New Zealand’s interesting geology but that I knew very little about the vast oceans surrounding our country. So this year I decided to study ocean circulation, with NIWA marine physicist Mike Williams as my supervisor. My home is in Nelson so I have spent the year going between the NIWA campuses in ...
Chapter 5 Section 1 - Ms. Flythe's 6th Grade Science Class
... There are three main layers of Earth 1. The CRUST 2. The MANTLE 3. The CORE ...
... There are three main layers of Earth 1. The CRUST 2. The MANTLE 3. The CORE ...
Unit 7 Earth`s Interior
... Convection Currents The next time you heat anything like soup or water in a pan you can watch the convection currents move in the liquid. When the convection currents flow in the mantle they also move the crust plates. The crust gets a free ride with these currents, like the cork in this illustrati ...
... Convection Currents The next time you heat anything like soup or water in a pan you can watch the convection currents move in the liquid. When the convection currents flow in the mantle they also move the crust plates. The crust gets a free ride with these currents, like the cork in this illustrati ...
1 0 .
... 10. Lithosphere – Movements of Tectonic Plates The Earth’s Crust was divided into many segments – litospheric (tectonic) plates. These plates are moving. The speed of this movement is 1 – 5 cm per year. Crustal plates can converge, diverge, collide with each other, slide under each other or move hor ...
... 10. Lithosphere – Movements of Tectonic Plates The Earth’s Crust was divided into many segments – litospheric (tectonic) plates. These plates are moving. The speed of this movement is 1 – 5 cm per year. Crustal plates can converge, diverge, collide with each other, slide under each other or move hor ...
Plates
... coast of South America of the same plants and the same reptiles. Plant is called Glossopteris; Reptile is called Lystrosauris. He also found the same type of rock on the two coasts. ...
... coast of South America of the same plants and the same reptiles. Plant is called Glossopteris; Reptile is called Lystrosauris. He also found the same type of rock on the two coasts. ...
INTRODUCTION TO THE OCEANS
... moderates to a mere degree or two from horizontal. This gradual zone, which may be several hundred miles wide, is called the continental rise. It is composed of fine-grained continental sediments (silt and clay) washed down the many submarine canyons that notch the continental slope. ...
... moderates to a mere degree or two from horizontal. This gradual zone, which may be several hundred miles wide, is called the continental rise. It is composed of fine-grained continental sediments (silt and clay) washed down the many submarine canyons that notch the continental slope. ...
Document
... Slab Push Hypothesis • Magma rising along the mid oceanic ridge exerts a force that pushes an oceanic plate away from the ridge. • The force of gravity causes plate movement by pulling cooler, denser oceanic plates down toward the mantle. • Slab push and pull work together with convection currents ...
... Slab Push Hypothesis • Magma rising along the mid oceanic ridge exerts a force that pushes an oceanic plate away from the ridge. • The force of gravity causes plate movement by pulling cooler, denser oceanic plates down toward the mantle. • Slab push and pull work together with convection currents ...
Layers of the Earth powerpoint
... The next time you heat anything like soup or water in a pan you can watch the convection currents move in the liquid. When the convection currents flow in the asthenosphere they also move the crust. The crust gets a free ride with these currents, like the cork in this illustration. ...
... The next time you heat anything like soup or water in a pan you can watch the convection currents move in the liquid. When the convection currents flow in the asthenosphere they also move the crust. The crust gets a free ride with these currents, like the cork in this illustration. ...
Chapter 2
... layer of sediments such as clay and calcium carbonate (CaCO3) from the shells and internal skeletons of marine organisms. The formation of calcium carbonate consumes carbon dioxide (CO2) that is dissolved in seawater. Seafloor sediments remove CO2 from the atmosphere, and thus have a long-term influ ...
... layer of sediments such as clay and calcium carbonate (CaCO3) from the shells and internal skeletons of marine organisms. The formation of calcium carbonate consumes carbon dioxide (CO2) that is dissolved in seawater. Seafloor sediments remove CO2 from the atmosphere, and thus have a long-term influ ...
Chapter 15 - Life Near the Surface
... Another way to stay afloat is by storing ________________________. Many bony fish do this through an organ called a _____________________ ____________________. Fish can then adjust their position in the water column by changing ____________________________________________________________. Not all pl ...
... Another way to stay afloat is by storing ________________________. Many bony fish do this through an organ called a _____________________ ____________________. Fish can then adjust their position in the water column by changing ____________________________________________________________. Not all pl ...
The Ocean
... to the abyssal plain. This gently sloping area is known as the continental rise (= úpatí, necessary to distinguish from oceanic rise = oceánský práh či hřbet ). Erosional valleys and canyons cut across the margin. Some of them are deeper and wider than the Grand Canyon in Arizona! They were probably ...
... to the abyssal plain. This gently sloping area is known as the continental rise (= úpatí, necessary to distinguish from oceanic rise = oceánský práh či hřbet ). Erosional valleys and canyons cut across the margin. Some of them are deeper and wider than the Grand Canyon in Arizona! They were probably ...
Science: Directed Reading Study Guide
... volcanoes found near other types of boundaries. Rather, they feature a ______________________ ______________________. These are also known as __________________________ faults. These appear as a large crack in the crust at the surface surrounded by very small mountains on its sides. 10. The most fam ...
... volcanoes found near other types of boundaries. Rather, they feature a ______________________ ______________________. These are also known as __________________________ faults. These appear as a large crack in the crust at the surface surrounded by very small mountains on its sides. 10. The most fam ...
Bathymetry_Activity
... and biological processes in the ocean Background: The topography of the sea floor (called “bathymetry”) primarily reflects the geologic history of the last 150 million years – a small fraction of the Earth’s 4.5 billion year history. Why is the sea floor relatively so young? New oceanic crust is bei ...
... and biological processes in the ocean Background: The topography of the sea floor (called “bathymetry”) primarily reflects the geologic history of the last 150 million years – a small fraction of the Earth’s 4.5 billion year history. Why is the sea floor relatively so young? New oceanic crust is bei ...
3-2
... Functional Diversity The biological and chemical processes such as energy flow and matter recycling needed for the survival of species, communities, and ecosystems. ...
... Functional Diversity The biological and chemical processes such as energy flow and matter recycling needed for the survival of species, communities, and ecosystems. ...
EESS 8: The Oceans Activity 2 The Shape of Ocean Basins and the
... and biological processes in the ocean Background: The topography of the sea floor (called “bathymetry”) primarily reflects the geologic history of the last 150 million years – a small fraction of the Earth’s 4.5 billion year history. Why is the sea floor relatively so young? New oceanic crust is bei ...
... and biological processes in the ocean Background: The topography of the sea floor (called “bathymetry”) primarily reflects the geologic history of the last 150 million years – a small fraction of the Earth’s 4.5 billion year history. Why is the sea floor relatively so young? New oceanic crust is bei ...
Powerpoint Presentation Physical Geology, 10/e
... inner core) best fits observed properties – Iron is the only metal common in meteorites ...
... inner core) best fits observed properties – Iron is the only metal common in meteorites ...
PowerPoint Presentation - The Earth, Plate Tectonics
... soft, plastic interior. The sinking of the block forms a central valley called a rift. Magma (liquid rock) seeps upward to fill the cracks. In this way, new crust is formed along the boundary. ...
... soft, plastic interior. The sinking of the block forms a central valley called a rift. Magma (liquid rock) seeps upward to fill the cracks. In this way, new crust is formed along the boundary. ...
Power Notes –Plate Tectonics
... • The _______________ ranges are called mid-ocean ridges. When the mid-ocean ridge actually builds up enough height to extend above the water’s ____________, it forms an island. Iceland is an example of such an island. Located at a ________________ plate boundary between the North American and Europ ...
... • The _______________ ranges are called mid-ocean ridges. When the mid-ocean ridge actually builds up enough height to extend above the water’s ____________, it forms an island. Iceland is an example of such an island. Located at a ________________ plate boundary between the North American and Europ ...
Chapter 11: The Early-to-Middle Paleozoic World
... o The Paleozoic tectonic cycle began with one or more supercontinents present o The rifting and continued movement of continents cause seafloor spreading centers to displace large amounts of water out of the ocean basins, producing epicontinental seas and decreasing Earth’s albedo o Rifting, subduct ...
... o The Paleozoic tectonic cycle began with one or more supercontinents present o The rifting and continued movement of continents cause seafloor spreading centers to displace large amounts of water out of the ocean basins, producing epicontinental seas and decreasing Earth’s albedo o Rifting, subduct ...
Identifying Plate Tectonics Lab 1-34
... 34. It is sometimes said that after a big earthquake, California will “fall into the ocean.” When Southern California and Baja California finally break away from North America, will they (the land) sink below sea level? Why or why not? (Hint: Discuss the layers of the Earth: lithosphere/crust, mantl ...
... 34. It is sometimes said that after a big earthquake, California will “fall into the ocean.” When Southern California and Baja California finally break away from North America, will they (the land) sink below sea level? Why or why not? (Hint: Discuss the layers of the Earth: lithosphere/crust, mantl ...
Chapter 7
... • Asthenosphere = low velocity zone at 100250 km depth in Earth (seismic wave velocity decreases). • Rocks are at or near melting point. • Magmas generated here. • Solid that flows (rheid); plastic behavior. • Convection in this layer moves tectonic plates. ...
... • Asthenosphere = low velocity zone at 100250 km depth in Earth (seismic wave velocity decreases). • Rocks are at or near melting point. • Magmas generated here. • Solid that flows (rheid); plastic behavior. • Convection in this layer moves tectonic plates. ...
Theory of plate tectonics | sample answer
... Theory of plate tectonics | sample answer Q. Using examples, explain the theory of plate tectonics. The theory of plate tectonics states that the crust (lithosphere) is broken into 16 big slabs called plates. These plates are floating on magma and moving around as a result. 60million years ago the l ...
... Theory of plate tectonics | sample answer Q. Using examples, explain the theory of plate tectonics. The theory of plate tectonics states that the crust (lithosphere) is broken into 16 big slabs called plates. These plates are floating on magma and moving around as a result. 60million years ago the l ...
Abyssal plain
An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 m. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth’s surface. They are among the flattest, smoothest and least explored regions on Earth. Abyssal plains are key geologic elements of oceanic basins (the other elements being an elevated mid-ocean ridge and flanking abyssal hills). In addition to these elements, active oceanic basins (those that are associated with a moving plate tectonic boundary) also typically include an oceanic trench and a subduction zone.Abyssal plains were not recognized as distinct physiographic features of the sea floor until the late 1940s and, until very recently, none had been studied on a systematic basis. They are poorly preserved in the sedimentary record, because they tend to be consumed by the subduction process. The creation of the abyssal plain is the end result of spreading of the seafloor (plate tectonics) and melting of the lower oceanic crust. Magma rises from above the asthenosphere (a layer of the upper mantle) and as this basaltic material reaches the surface at mid-ocean ridges it forms new oceanic crust. This is constantly pulled sideways by spreading of the seafloor. Abyssal plains result from the blanketing of an originally uneven surface of oceanic crust by fine-grained sediments, mainly clay and silt. Much of this sediment is deposited by turbidity currents that have been channelled from the continental margins along submarine canyons down into deeper water. The remainder of the sediment is composed chiefly of pelagic sediments. Metallic nodules are common in some areas of the plains, with varying concentrations of metals, including manganese, iron, nickel, cobalt, and copper. These nodules may provide a significant resource for future mining ventures.Owing in part to their vast size, abyssal plains are currently believed to be a major reservoir of biodiversity. The abyss also exerts significant influence upon ocean carbon cycling, dissolution of calcium carbonate, and atmospheric CO2 concentrations over timescales of 100–1000 years. The structure and function of abyssal ecosystems are strongly influenced by the rate of flux of food to the seafloor and the composition of the material that settles. Factors such as climate change, fishing practices, and ocean fertilization are expected to have a substantial effect on patterns of primary production in the euphotic zone. This will undoubtedly impact the flux of organic material to the abyss in a similar manner and thus have a profound effect on the structure, function and diversity of abyssal ecosystems.