Ch 6 power point
... • The tectonic setting – Lava characteristics influenced by location • Oceanic, divergent margins – Lava is thin with a steep geothermal gradient ...
... • The tectonic setting – Lava characteristics influenced by location • Oceanic, divergent margins – Lava is thin with a steep geothermal gradient ...
Name________________________________ #____
... 4. The speed of plate motion is comparable to what? ____________________________________________ ________________________________________________________________________________________ 5. What happens at CONVERGENT plate boundaries? ___________________________________________ ______________________ ...
... 4. The speed of plate motion is comparable to what? ____________________________________________ ________________________________________________________________________________________ 5. What happens at CONVERGENT plate boundaries? ___________________________________________ ______________________ ...
Geology of the Supers 2
... eruptions remain visible today. Picket Post Mountain, west of Superior, is a classic example of deposition remnant. As the volcanic action of the second stage began to subside, the third stage of the mountain’s evolution began. Uplift and subsidence were both common during this period. However, upli ...
... eruptions remain visible today. Picket Post Mountain, west of Superior, is a classic example of deposition remnant. As the volcanic action of the second stage began to subside, the third stage of the mountain’s evolution began. Uplift and subsidence were both common during this period. However, upli ...
W Felsic - Miami University
... comprise them, and the magmas from which they form (Best 1982; Le Maitre et al. 2002). Felsic is used to describe rocks containing greater than 66 weight percent silica (silicon concentration reported as a neutral oxide, SiO2). The term mafic is used to describe igneous rocks with 45–52 weight perce ...
... comprise them, and the magmas from which they form (Best 1982; Le Maitre et al. 2002). Felsic is used to describe rocks containing greater than 66 weight percent silica (silicon concentration reported as a neutral oxide, SiO2). The term mafic is used to describe igneous rocks with 45–52 weight perce ...
Do deep mantle plumes exist?
... Figure 2: Diagram to illustrate the directional movements of tectonic plates over the mantle (bolder arrows indicate plate motion at hotspots) (adapted from Morgan 1971) Recognition of tholeiitic basalt in Hawaii and parts of Iceland, at variance with the usual composition of MORB, coupled with evid ...
... Figure 2: Diagram to illustrate the directional movements of tectonic plates over the mantle (bolder arrows indicate plate motion at hotspots) (adapted from Morgan 1971) Recognition of tholeiitic basalt in Hawaii and parts of Iceland, at variance with the usual composition of MORB, coupled with evid ...
Slide 1
... • Olympus Mons – huge volcano bigger than Hawaii, one of 4 in Tharsis • Volcanism produced – Lava flows – Shield volcanoes – Calderas ...
... • Olympus Mons – huge volcano bigger than Hawaii, one of 4 in Tharsis • Volcanism produced – Lava flows – Shield volcanoes – Calderas ...
Physical and Ecological Processes
... changing due to plate tectonics and erosion and weathering. The surface of the earth looks like one continuous piece but it is actually broken into several large pieces that fit together like a jigsaw puzzle. Each piece is called a plate and when two plates come into contact it is called a plate bo ...
... changing due to plate tectonics and erosion and weathering. The surface of the earth looks like one continuous piece but it is actually broken into several large pieces that fit together like a jigsaw puzzle. Each piece is called a plate and when two plates come into contact it is called a plate bo ...
Seafloor Spreading and Paleomagnetism
... said no • Wegener also thought the continents plowed through ocean floor but there was no evidence for that ...
... said no • Wegener also thought the continents plowed through ocean floor but there was no evidence for that ...
Volcanoes and Plate Tectonics
... This Dynamic Planet http://volcanoes.usgs.gov/about/edu/dynamicplanet/index.php When and where on the planet have volcanoes erupted recently? Why do volcanoes occur in those locations? Can volcanoes happen anywhere, or are they more likely in some areas? In this activity, you will find out about the ...
... This Dynamic Planet http://volcanoes.usgs.gov/about/edu/dynamicplanet/index.php When and where on the planet have volcanoes erupted recently? Why do volcanoes occur in those locations? Can volcanoes happen anywhere, or are they more likely in some areas? In this activity, you will find out about the ...
sxES_G6_RNG_ch04-A_070-073.fm
... This section describes a hypothesis of how the continents came to be located where they are today. The section also gives evidence for the hypothesis and explains why the hypothesis was not accepted for many years. ...
... This section describes a hypothesis of how the continents came to be located where they are today. The section also gives evidence for the hypothesis and explains why the hypothesis was not accepted for many years. ...
plate tectonics
... Oceanic crust colliding with Oceanic crust One of the Oceanic crusts is subducted (the one that is mostly oceanic is denser). --This results in the formation of a subduction zone and a very deep trench. The plate melts due to: * heat from the asthenosphere * friction from the plates grinding over o ...
... Oceanic crust colliding with Oceanic crust One of the Oceanic crusts is subducted (the one that is mostly oceanic is denser). --This results in the formation of a subduction zone and a very deep trench. The plate melts due to: * heat from the asthenosphere * friction from the plates grinding over o ...
How the Earth was Made
... 29. When did the ice that covered North America melt and thus recede giving humans freedom to explore the land? ...
... 29. When did the ice that covered North America melt and thus recede giving humans freedom to explore the land? ...
Notes: Plate Tectonics
... top. The hot rock eventually cools and sinks back through the mantle. Over and over the cycle of rising and sinking takes place. • Convection currents like these have been moving inside Earth for more than four billion years! ...
... top. The hot rock eventually cools and sinks back through the mantle. Over and over the cycle of rising and sinking takes place. • Convection currents like these have been moving inside Earth for more than four billion years! ...
Cooling of the Ocean Plates (Lithosphere)
... 2. Transform faults and fracture zones (adjacent transform faults are parallel). 3. Continuous plate boundaries 4. Volcanic Island chains - plates moving over fixed mantle plume (melt source) 5. Topography variations consistent with aging plates. ...
... 2. Transform faults and fracture zones (adjacent transform faults are parallel). 3. Continuous plate boundaries 4. Volcanic Island chains - plates moving over fixed mantle plume (melt source) 5. Topography variations consistent with aging plates. ...
Classification of Igneous Rocks
... Classification I: texture Classification II: field relations Classification III: chemical compositions ...
... Classification I: texture Classification II: field relations Classification III: chemical compositions ...
The Terrestrial Planets
... • many volcanoes and domes of lava (corona) • Venus is very active with tectonics & volcanism ...
... • many volcanoes and domes of lava (corona) • Venus is very active with tectonics & volcanism ...
A note on the gravitational field of the right rectangular prism
... The recently released global crustal model CRUST 2.0 has been validated both globally and regionally focusing on its information content regarding the crust-mantle boundary. The numerical assessment of the metric information given by the database in terms of thickness and position of individual crus ...
... The recently released global crustal model CRUST 2.0 has been validated both globally and regionally focusing on its information content regarding the crust-mantle boundary. The numerical assessment of the metric information given by the database in terms of thickness and position of individual crus ...
PDF format
... A. the Earth is comprised of many layers with different densities B. the deep interior of the Earth must have a density greater than 5.5 g/cm3 C. the deep interior of the Earth must have a density less than 5.5 g/cm3 D. the deep interior of the Earth must have a density less than 2.5 g/cm3 E. measur ...
... A. the Earth is comprised of many layers with different densities B. the deep interior of the Earth must have a density greater than 5.5 g/cm3 C. the deep interior of the Earth must have a density less than 5.5 g/cm3 D. the deep interior of the Earth must have a density less than 2.5 g/cm3 E. measur ...
Notebook #4 Earths layers gt
... * Scientists have been able to identify the composition of inner and outer core based on the movement of seismic waves through the Earth's layers * Scientists have been able to identify the composition of the mantle based on the movement of seismic waves through the earth's layers as well as materia ...
... * Scientists have been able to identify the composition of inner and outer core based on the movement of seismic waves through the Earth's layers * Scientists have been able to identify the composition of the mantle based on the movement of seismic waves through the earth's layers as well as materia ...
Earthquakes are concentrated along oceanic ridges, transform faults
... • Plate edges are trenches, oceanic ridges and transform faults. • Seismicity and volcanism are concentrated along plate boundaries. • Movement of plates is caused by thermal convection of the “plastic” rocks of the asthenosphere that drag along the overlying lithospheric plates. ...
... • Plate edges are trenches, oceanic ridges and transform faults. • Seismicity and volcanism are concentrated along plate boundaries. • Movement of plates is caused by thermal convection of the “plastic” rocks of the asthenosphere that drag along the overlying lithospheric plates. ...
Due: Tuesday February 1
... 2. What is the core made of? _____________________________________________ 3. What is the thickest layer of earth? ________________________ 4. What is the thinnest layer of earth? ________________________ 5. What happens to pressure and temperature as you down into the earth? ...
... 2. What is the core made of? _____________________________________________ 3. What is the thickest layer of earth? ________________________ 4. What is the thinnest layer of earth? ________________________ 5. What happens to pressure and temperature as you down into the earth? ...
Plate Tectonics
... is the Earth’s lithosphere made up of? Where can a volcano form? What plate are the Hawaiian Islands on? Are they at a plate boundary or a hot spot? What is a hot spot? Does a hot spot move? So what is moving? How many islands has this hot spot formed to make the Hawaiian Island chain? ...
... is the Earth’s lithosphere made up of? Where can a volcano form? What plate are the Hawaiian Islands on? Are they at a plate boundary or a hot spot? What is a hot spot? Does a hot spot move? So what is moving? How many islands has this hot spot formed to make the Hawaiian Island chain? ...
EGU2016-8321 - CO Meeting Organizer
... rate, with slab rotation towards a near-vertical dip angle at depths below ca. 500 km at very high convergence rate. (4) Local isostasy is not satisfied at the convergent margins as evidenced by strong free air gravity anomalies of positive and negative signs. However, near-isostatic equilibrium may ...
... rate, with slab rotation towards a near-vertical dip angle at depths below ca. 500 km at very high convergence rate. (4) Local isostasy is not satisfied at the convergent margins as evidenced by strong free air gravity anomalies of positive and negative signs. However, near-isostatic equilibrium may ...
Large igneous province
A large igneous province (LIP) is an extremely large accumulation of igneous rocks, including liquid rock (intrusive) or volcanic rock formations (extrusive), when hot magma extrudes from inside the Earth and flows out. The source of many or all LIPs is variously attributed to mantle plumes or to processes associated with plate tectonics. Types of LIPs can include large volcanic provinces (LVP), created through flood basalt and large plutonic provinces (LPP). Eleven distinct flood basalt episodes occurred in the past 250 million years, creating volcanic provinces, which coincided with mass extinctions in prehistoric times. Formation depends on a range of factors, such as continental configuration, latitude, volume, rate, duration of eruption, style and setting (continental vs. oceanic), the preexisting climate state, and the biota resilience to change.