How the Continents Move (910L)
... continental crust, are much older than the ocean floor. They are also lighter (less dense), so they float high on the liquid inner part of the earth--like ice cubes in water. The ocean floor is thinner and denser, so it doesn't float as high. The plates, which are usually made of combinations of con ...
... continental crust, are much older than the ocean floor. They are also lighter (less dense), so they float high on the liquid inner part of the earth--like ice cubes in water. The ocean floor is thinner and denser, so it doesn't float as high. The plates, which are usually made of combinations of con ...
Test Review: Geosphere Part 1: Lithosphere, Earthquakes
... made of hot ______silica rocks ___________. You could also call this magma. 4. The outer core has (more/less) pressure then the inner core. Therefore, the outer core is (liquid/solid) and the inner core is (liquid/solid). The core is made up of ____iron_________ & _________nickel________. 5. The mov ...
... made of hot ______silica rocks ___________. You could also call this magma. 4. The outer core has (more/less) pressure then the inner core. Therefore, the outer core is (liquid/solid) and the inner core is (liquid/solid). The core is made up of ____iron_________ & _________nickel________. 5. The mov ...
Science Notes December, 2012 SOL 5.7 Rock Cycle, Weathering
... Rock Cycle, Weathering, Erosion, and Human Impact The rock cycle is the ongoing process by which rocks can change from one type to another. The three basic types of rocks are igneous, sedimentary, and metamorphic. These rock types are classified by how they are formed. Igneous rock forms when magma ...
... Rock Cycle, Weathering, Erosion, and Human Impact The rock cycle is the ongoing process by which rocks can change from one type to another. The three basic types of rocks are igneous, sedimentary, and metamorphic. These rock types are classified by how they are formed. Igneous rock forms when magma ...
File
... earth constantly changes is called theory of plate tectonic. • States that the earth’s outer shell, the lithosphere is divided into large plates. ...
... earth constantly changes is called theory of plate tectonic. • States that the earth’s outer shell, the lithosphere is divided into large plates. ...
Pre-Test: Chapter 7-Plate Tectonics
... 3. Evidence for sea-floor spreading has come from a. fossils in South America and Africa. c. ancient climatic conditions. b. magnetic minerals on the ocean floor. d. the breakup of Pangaea. ...
... 3. Evidence for sea-floor spreading has come from a. fossils in South America and Africa. c. ancient climatic conditions. b. magnetic minerals on the ocean floor. d. the breakup of Pangaea. ...
10.1 Volcanoes and Plate Tectonics Lecture Outline Origin of
... Once the sinking slab reaches a depth of about 100 to 150 kilometer, this water reduces the melting point of hot mantle rock low enough for melting to begin. The magma formed slowly migrates upward, forming volcanoes. Volcanoes from as convergent boundaries where two oceanic plates meet and where t ...
... Once the sinking slab reaches a depth of about 100 to 150 kilometer, this water reduces the melting point of hot mantle rock low enough for melting to begin. The magma formed slowly migrates upward, forming volcanoes. Volcanoes from as convergent boundaries where two oceanic plates meet and where t ...
Chapter 10 study guide
... modern continents which drifted to their present locations. There was other evidence that supported Wegener’s hypothesis… Landforms Wegener thought that the crumpling of the crust in places may have produced mountain ranges such as the Andes Mountains. Mountain ranges on one continent seemed to co ...
... modern continents which drifted to their present locations. There was other evidence that supported Wegener’s hypothesis… Landforms Wegener thought that the crumpling of the crust in places may have produced mountain ranges such as the Andes Mountains. Mountain ranges on one continent seemed to co ...
Chapter 6: Plate Tectonics
... Earth’s outermost right lithosphere is subdivided into a series of plates Tectonics refers to large-scale processes that cause movement of the lithospheric plates over the asthenosphere These processes have produced mountain chains, ocean basins, and other Earth surface features o They also in ...
... Earth’s outermost right lithosphere is subdivided into a series of plates Tectonics refers to large-scale processes that cause movement of the lithospheric plates over the asthenosphere These processes have produced mountain chains, ocean basins, and other Earth surface features o They also in ...
Geology-Sheet-3-Carboniferous-Period
... of the Carboniferous period. It was warmer and more humid, and there were no distinct seasons. Average global temperature was 20°C in the early Carboniferous - it is only about 12°C today. Later during the Carboniferous, global temperatures cooled to levels similar to today, and there was a great ic ...
... of the Carboniferous period. It was warmer and more humid, and there were no distinct seasons. Average global temperature was 20°C in the early Carboniferous - it is only about 12°C today. Later during the Carboniferous, global temperatures cooled to levels similar to today, and there was a great ic ...
Obj - davis.k12.ut.us
... which causes: 1. rift valley – the crust reaches elastic limit and breaks creating two new edges which move away, causing the middle portion to fall, 2. depression – the crust stretches but does not reach elastic limit and break, 3. ocean ridges – from seafloor spreading. 3. Transform boundary – the ...
... which causes: 1. rift valley – the crust reaches elastic limit and breaks creating two new edges which move away, causing the middle portion to fall, 2. depression – the crust stretches but does not reach elastic limit and break, 3. ocean ridges – from seafloor spreading. 3. Transform boundary – the ...
Crust
... dense rock that flows like asphalt under a heavy weight. The movement of the middle mantle (asthenosphere) is the reason that the crustal plates of the Earth move. ...
... dense rock that flows like asphalt under a heavy weight. The movement of the middle mantle (asthenosphere) is the reason that the crustal plates of the Earth move. ...
Plate Tectonics - Mrs. Robbins Earth Science
... • Climate: Fossils and rocks associated with different climates than present can be found in the layers of earth, and resemble those of other continents from a similar time period. ...
... • Climate: Fossils and rocks associated with different climates than present can be found in the layers of earth, and resemble those of other continents from a similar time period. ...
Q. What is the concept of plate tectonics theory?
... - It is a scientific theory which describes the large scale motion of Earth’s lithosphere. The theory builds on the older concepts of continental drift developed by Alfred Wegner and seafloor spreading. Where the plates are relatively moving towards each others and changing their sizes and shapes. T ...
... - It is a scientific theory which describes the large scale motion of Earth’s lithosphere. The theory builds on the older concepts of continental drift developed by Alfred Wegner and seafloor spreading. Where the plates are relatively moving towards each others and changing their sizes and shapes. T ...
Watching Plates Move with CORK Observatories
... observations of temperatures, pressures, and compositions of formation fluids made well after drilling ends. Over the first decade of CORK monitoring experiments installed in a variety of ODP holes, a number of observations have been made that range well beyond the original objectives of understandi ...
... observations of temperatures, pressures, and compositions of formation fluids made well after drilling ends. Over the first decade of CORK monitoring experiments installed in a variety of ODP holes, a number of observations have been made that range well beyond the original objectives of understandi ...
Figure 1. The composition of the earth normalized to
... Many existing models for determining the composition of the bulk earth are overly complicated, and so developing a more simplistic model that fits data and observations is therefore a worthwhile endeavor. The bulk earth is a simple mass balance of its component reservoirs: continental crust, deplete ...
... Many existing models for determining the composition of the bulk earth are overly complicated, and so developing a more simplistic model that fits data and observations is therefore a worthwhile endeavor. The bulk earth is a simple mass balance of its component reservoirs: continental crust, deplete ...
G19-1pow
... they fracture when stress and strain reach a critical point. At these breaks, rocks can move, releasing the energy built up as a result of stress. Earthquakes are the result of this movement and release of energy. ...
... they fracture when stress and strain reach a critical point. At these breaks, rocks can move, releasing the energy built up as a result of stress. Earthquakes are the result of this movement and release of energy. ...
Earth`s Layers PowerPoint
... • Moving towards the center of the earth: •Density increases •Pressure increases •Temperature increases ...
... • Moving towards the center of the earth: •Density increases •Pressure increases •Temperature increases ...
Chapter 2
... The densest lithosphere is most likely to sink back into the asthenosphere and the deeper mantle. Ocean floor and the continents are slowly moving (up to 12 cm/yr). ...
... The densest lithosphere is most likely to sink back into the asthenosphere and the deeper mantle. Ocean floor and the continents are slowly moving (up to 12 cm/yr). ...
Document
... • Earth’s interior is divided into layers: the crust, mantle, & core, based on composition. Although the Earth’s crust seem stable, the extreme heat of the Earth’s interior causes changes that slowly reshape the surface. ...
... • Earth’s interior is divided into layers: the crust, mantle, & core, based on composition. Although the Earth’s crust seem stable, the extreme heat of the Earth’s interior causes changes that slowly reshape the surface. ...
PowerPoint Presentation - Inside the Earth
... Crust to Mantle • The upper part of the mantle and the crust together form a rigid layer called the lithosphere. » Lithos is greek for stone, 100 km thick » made of pieces called tectonic plates ...
... Crust to Mantle • The upper part of the mantle and the crust together form a rigid layer called the lithosphere. » Lithos is greek for stone, 100 km thick » made of pieces called tectonic plates ...
Lecture 5 - Plate Tectonics and Rocks
... Intermediate (chemically) igneous rocks are commonly formed at convergent boundaries Partial melting of basaltic oceanic crust produces intermediate magmas ...
... Intermediate (chemically) igneous rocks are commonly formed at convergent boundaries Partial melting of basaltic oceanic crust produces intermediate magmas ...
Earth is made of materials with different DENSITIES The 4 layers of
... 7. Magma rising through cracked, thinned crust forms VOLCANOES. If the RIFT VALLEY continues to widen, the thinned valley floor sinks BELOW SEA LEVEL & water from nearby oceans or rivers may fill the valley and form a LAKE or SEAS. 8. A HOT SPOT can provide a fixed point for measuring the speed & di ...
... 7. Magma rising through cracked, thinned crust forms VOLCANOES. If the RIFT VALLEY continues to widen, the thinned valley floor sinks BELOW SEA LEVEL & water from nearby oceans or rivers may fill the valley and form a LAKE or SEAS. 8. A HOT SPOT can provide a fixed point for measuring the speed & di ...
the layers of the earth - NATSCI-A7
... hence called sial. On the other hand, oceanic crust, which is mainly composed of silica and magnesium, is called sima. ...
... hence called sial. On the other hand, oceanic crust, which is mainly composed of silica and magnesium, is called sima. ...
THE LITHOSPERE AND PLATE TECTONICS The layer of the
... ocean. The subducted crust melts and the resultant magma can rise to the surface and form a volcano. A divergent plate boundary occurs when two plates move away from each other. Magma upwelling from the mantle region is forced through the resulting ...
... ocean. The subducted crust melts and the resultant magma can rise to the surface and form a volcano. A divergent plate boundary occurs when two plates move away from each other. Magma upwelling from the mantle region is forced through the resulting ...
Post-glacial rebound
Post-glacial rebound (sometimes called continental rebound) is the rise of land masses that were depressed by the huge weight of ice sheets during the last glacial period, through a process known as isostatic depression. Post-glacial rebound and isostatic depression are different parts of a process known as either glacial isostasy, glacial isostatic adjustment, or glacioisostasy. Glacioisostasy is the solid Earth deformation associated with changes in ice mass distribution. The most obvious and direct affects of post-glacial rebound are readily apparent in northern Europe (especially Scotland, Estonia, Latvia, Fennoscandia, and northern Denmark), Siberia, Canada, the Great Lakes of Canada and the United States, the coastal region of the US state of Maine, parts of Patagonia, and Antarctica. However, through processes known as ocean siphoning and continental levering, the effects of post-glacial rebound on sea-level are felt globally far from the locations of current and former ice sheets.