Geography Knowledge Organiser 8.1.1
... - Scientists can currently forcast the likelihood of an earthquake in the long term (over years and decades). However, it is almost impossible to predict earthquakes in the short term. - However, there are ways that scientists can monitor tectonic activity to help them forcast earthquakes: - Scienti ...
... - Scientists can currently forcast the likelihood of an earthquake in the long term (over years and decades). However, it is almost impossible to predict earthquakes in the short term. - However, there are ways that scientists can monitor tectonic activity to help them forcast earthquakes: - Scienti ...
1. What is rock? 2. The layer of solid rock that surrounds Earth`s
... 6. What is the theory of plate tectonics? correct the underlined 7. What does the theory of plate tectonics explain? word(s) if it’s false!! 8. The plates of the lithosphere float on material in the …? ...
... 6. What is the theory of plate tectonics? correct the underlined 7. What does the theory of plate tectonics explain? word(s) if it’s false!! 8. The plates of the lithosphere float on material in the …? ...
Southwest U.S. Region Mountain
... Its subduction built most of the North American Cordillera, bunching up the west end of the North American plate like folds It is also the origin of the Sierra Nevada Batholith via subduction under North America ...
... Its subduction built most of the North American Cordillera, bunching up the west end of the North American plate like folds It is also the origin of the Sierra Nevada Batholith via subduction under North America ...
Document
... 8.9(A) describe the historical development of evidence that supports plate tectonic theory 8.9(B) relate plate tectonics to the formation of crustal features Today’s Objective: Identify the location of physical features that result from the movement of tectonic plates. ...
... 8.9(A) describe the historical development of evidence that supports plate tectonic theory 8.9(B) relate plate tectonics to the formation of crustal features Today’s Objective: Identify the location of physical features that result from the movement of tectonic plates. ...
Lecture 12
... Observed heat flow through the entire earth surface if 43TW, ~ 50% of heat comes from other sources such as contraction and friction processes. Two kind of heat transport, conduction and convection. Conduction takes place in metals such as Fe-Ni core, convection in molten rock on earth mantle. ...
... Observed heat flow through the entire earth surface if 43TW, ~ 50% of heat comes from other sources such as contraction and friction processes. Two kind of heat transport, conduction and convection. Conduction takes place in metals such as Fe-Ni core, convection in molten rock on earth mantle. ...
Oceanography 101 Linda Khandro, MAT Homework 11: Dynamic
... Define and distinguish between active or passive continental margins. Define and distinguish between emergent or submergent coastlines Define and distinguish between primary or secondary coastlines • Describe the effects of wave action on coastlines, producing erosion and deposition of sedimen ...
... Define and distinguish between active or passive continental margins. Define and distinguish between emergent or submergent coastlines Define and distinguish between primary or secondary coastlines • Describe the effects of wave action on coastlines, producing erosion and deposition of sedimen ...
Hawaii, we thought we knew you
... down to the core, each having a particular chemistry that was generally the same (homogeneous) throughout the layer. Thermal plumes were conceived to transport material from deep layers to the ...
... down to the core, each having a particular chemistry that was generally the same (homogeneous) throughout the layer. Thermal plumes were conceived to transport material from deep layers to the ...
Lesson 2 - Continental Drift Alfred Wegener.key
... surface of the Earth shrinking as the Earth cooled down after it was formed. ...
... surface of the Earth shrinking as the Earth cooled down after it was formed. ...
California Geologic History
... trigger underwater landslides deepening the canyon It’s a very unique, interesting feature still ...
... trigger underwater landslides deepening the canyon It’s a very unique, interesting feature still ...
GCSE Geography Revision Pack: Key Themes Paper Natural
... zone of air near the surface of the water. 2. Rising warm air causes the air pressure to decrease at higher altitudes. Warm air is under a higher pressure than cold air, so it moves towards the ‘space’ occupied by the colder, lower pressure, air to fill the gap. So the low pressure ‘sucks in’ air ...
... zone of air near the surface of the water. 2. Rising warm air causes the air pressure to decrease at higher altitudes. Warm air is under a higher pressure than cold air, so it moves towards the ‘space’ occupied by the colder, lower pressure, air to fill the gap. So the low pressure ‘sucks in’ air ...
Chapter 1: Meet Planet Earth
... Tectonics is the study of the movement and deformation of the lithosphere. When magma rises from deep in the mantle, it forms new oceanic crust at midocean ridges. The lifetime of oceanic crust is shorter than the lifetime of continental crust. The most ancient oceanic crust of the ocean bas ...
... Tectonics is the study of the movement and deformation of the lithosphere. When magma rises from deep in the mantle, it forms new oceanic crust at midocean ridges. The lifetime of oceanic crust is shorter than the lifetime of continental crust. The most ancient oceanic crust of the ocean bas ...
Notes on Metamorphic Rocks and Deformation of Crust Mountains
... 3.What’s the difference between faulting and folding? -Cooler temperatures causes rocks to fault rather than _________ 4. What’s the difference between a fracture and a fault? -fracture- ____________ along either side of a break -fault- when rocks do move 5. What is a hanging wall and a footwall? -_ ...
... 3.What’s the difference between faulting and folding? -Cooler temperatures causes rocks to fault rather than _________ 4. What’s the difference between a fracture and a fault? -fracture- ____________ along either side of a break -fault- when rocks do move 5. What is a hanging wall and a footwall? -_ ...
Convergence of tectonic reconstructions and mantle
... seafloor dominates, but areas with ages as old as 180 Ma exist. The shape of this distribution is called triangular. The physics behind this distribution has been questioned by Labrosse and Jaupart (2007), particularly because it suggests that lithosphere of young age (hot) is subducted with the same ...
... seafloor dominates, but areas with ages as old as 180 Ma exist. The shape of this distribution is called triangular. The physics behind this distribution has been questioned by Labrosse and Jaupart (2007), particularly because it suggests that lithosphere of young age (hot) is subducted with the same ...
Paper - EarthByte
... seafloor dominates, but areas with ages as old as 180 Ma exist. The shape of this distribution is called triangular. The physics behind this distribution has been questioned by Labrosse and Jaupart (2007), particularly because it suggests that lithosphere of young age (hot) is subducted with the same ...
... seafloor dominates, but areas with ages as old as 180 Ma exist. The shape of this distribution is called triangular. The physics behind this distribution has been questioned by Labrosse and Jaupart (2007), particularly because it suggests that lithosphere of young age (hot) is subducted with the same ...
the dynamic earth - Mater Academy Lakes High School
... As scientists were learning about the age of the sea floor, they also were finding puzzling magnetic patterns on the ocean floor. The scientists used the geomagnetic reversal time scale to help them unravel the mystery of these magnetic patterns. Scientists noticed that the striped magnetic pattern ...
... As scientists were learning about the age of the sea floor, they also were finding puzzling magnetic patterns on the ocean floor. The scientists used the geomagnetic reversal time scale to help them unravel the mystery of these magnetic patterns. Scientists noticed that the striped magnetic pattern ...
HotspotActivity_forSERC.v2
... Hotspot island chains like the Hawaiian Islands have been used to estimate the motion of tectonic plates over time. The idea is that a hotspot (the source of heat for the volcanoes) is “fixed” in the mantle and a tectonic plate moves over it, producing a linear chain of volcanoes over time. But are ...
... Hotspot island chains like the Hawaiian Islands have been used to estimate the motion of tectonic plates over time. The idea is that a hotspot (the source of heat for the volcanoes) is “fixed” in the mantle and a tectonic plate moves over it, producing a linear chain of volcanoes over time. But are ...
Plate Tectonics
... Mechanical Structure of Earth Use this structure when discussing plate motions Structure based on two criteria: ...
... Mechanical Structure of Earth Use this structure when discussing plate motions Structure based on two criteria: ...
EGU2016-9120 - CO Meeting Organizer
... The Circum-Pacific belt, also called the Pacific Ring of Fire, is the most seismically active region on Earth. Multiple plate boundaries form a zone characterized by frequent volcanic eruptions and seismicity. While convergent plate boundaries such as the Peru-Chile trench dominate the Circum-Pacifi ...
... The Circum-Pacific belt, also called the Pacific Ring of Fire, is the most seismically active region on Earth. Multiple plate boundaries form a zone characterized by frequent volcanic eruptions and seismicity. While convergent plate boundaries such as the Peru-Chile trench dominate the Circum-Pacifi ...
Data
... splits and diverges near the surface. The newly formed crust moves horizontally away from the ridge on both sides (sea-floor spreading). As the newly formed oceanic crust continues to move horizontally away from the oceanic ridge, it gradually cools and contracts, becoming denser. Eventually, it bec ...
... splits and diverges near the surface. The newly formed crust moves horizontally away from the ridge on both sides (sea-floor spreading). As the newly formed oceanic crust continues to move horizontally away from the oceanic ridge, it gradually cools and contracts, becoming denser. Eventually, it bec ...
Modeling Plate Movements
... To create a model of tectonic plates and study the interactions of these plates as they slowly move on the asthenosphere. Background: The theory of Plate Tectonics states that the Earth’s crust is composed of major pieces or plates. These plates “ride” on the hot plasticlike upper mantle known as th ...
... To create a model of tectonic plates and study the interactions of these plates as they slowly move on the asthenosphere. Background: The theory of Plate Tectonics states that the Earth’s crust is composed of major pieces or plates. These plates “ride” on the hot plasticlike upper mantle known as th ...
Ms Martinez Plate Tectonic Note taking sheet
... are being forced towards the North American plate because both plates form a divergent boundary with the oceanic Pacific plate. This means that the process of seafloor spreading is happening at each of these divergent boundaries. Patterns and Connections: The Cascade Mountain Range is very complicat ...
... are being forced towards the North American plate because both plates form a divergent boundary with the oceanic Pacific plate. This means that the process of seafloor spreading is happening at each of these divergent boundaries. Patterns and Connections: The Cascade Mountain Range is very complicat ...
Isotopic evidence for nonuniform thinning of lithospheric mantle
... data is converted to information about the depth to the lithosphere - asthenosphere boundary by assuming that tholeiitic basalts sample the mantle at depths less than 50 km, and that alkalic basalts (up to 10% normative nepheline), sample the mantle at depths of 50 to 70 km. These depth ranges, base ...
... data is converted to information about the depth to the lithosphere - asthenosphere boundary by assuming that tholeiitic basalts sample the mantle at depths less than 50 km, and that alkalic basalts (up to 10% normative nepheline), sample the mantle at depths of 50 to 70 km. These depth ranges, base ...
Lab Activity: Sea- Floor Spreading
... 2. If the distance from a point on the coast of Africa to the Mid-Atlantic ridge is approximately 2400 km, how long ago was that point in Africa at or near that midocean ridge? 3. What type of plate boundary occurs during sea-floor spreading? 4. As plates move away from the ridge, was fills up the ...
... 2. If the distance from a point on the coast of Africa to the Mid-Atlantic ridge is approximately 2400 km, how long ago was that point in Africa at or near that midocean ridge? 3. What type of plate boundary occurs during sea-floor spreading? 4. As plates move away from the ridge, was fills up the ...
Plate tectonics
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός ""pertaining to building"") is a scientific theory that describes the large-scale motion of Earth's lithosphere. This theoretical model builds on the concept of continental drift which was developed during the first few decades of the 20th century. The geoscientific community accepted the theory after the concepts of seafloor spreading were later developed in the late 1950s and early 1960s.The lithosphere, which is the rigid outermost shell of a planet (on Earth, the crust and upper mantle), is broken up into tectonic plates. On Earth, there are seven or eight major plates (depending on how they are defined) and many minor plates. Where plates meet, their relative motion determines the type of boundary; convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The lateral relative movement of the plates typically varies from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the globe remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories (that still have some supporters) propose gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by the rotation of the globe and the tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.