Study Guide for Earth science
... *Magma- hot molten rock in the mantle; its movement upward causes a stretch or pull of tectonic plates (huge plates that the Earth’s continents rest on) *Lava-hot molten rock above the surface; when lava is released it hardens. Over thousands of years, it may increase the height of the volcano formi ...
... *Magma- hot molten rock in the mantle; its movement upward causes a stretch or pull of tectonic plates (huge plates that the Earth’s continents rest on) *Lava-hot molten rock above the surface; when lava is released it hardens. Over thousands of years, it may increase the height of the volcano formi ...
No Slide Title
... Confirmation of Hess’s Hypothesis • The magnetic anomalies were discovered to be striped, parallel to the oceanic ridges and symmetrical with the ridges ...
... Confirmation of Hess’s Hypothesis • The magnetic anomalies were discovered to be striped, parallel to the oceanic ridges and symmetrical with the ridges ...
Practice Questions: Plate Tectonics
... Which statement represents the most logical conclusion to draw from this evidence? A) Mesosaurus migrated across the ocean from location X to location Y. B) Mesosaurus came into existence on several widely separated continents at different times. C) The continents of South America and Africa were jo ...
... Which statement represents the most logical conclusion to draw from this evidence? A) Mesosaurus migrated across the ocean from location X to location Y. B) Mesosaurus came into existence on several widely separated continents at different times. C) The continents of South America and Africa were jo ...
8-2/8-3 lecture PDF
... L A N D F O R M S C R E AT E D B Y T E N S I O N • Where plates move apart, tension stresses stretch Earth’s crust. • In the ocean, tension stresses produce a(n) mid-ocean ridge along ...
... L A N D F O R M S C R E AT E D B Y T E N S I O N • Where plates move apart, tension stresses stretch Earth’s crust. • In the ocean, tension stresses produce a(n) mid-ocean ridge along ...
Crust - SharpSchool
... Rift valley: deep valley formed as tectonic plates move apart, as a long a mid-ocean ridge ...
... Rift valley: deep valley formed as tectonic plates move apart, as a long a mid-ocean ridge ...
Plate Tectonics Part 1-maybe Jan 29
... The crust and upper mantle is made up of plates. The crust and upper mantle is called the lithosphere Scientists believe that the plates move about 2 inches per year. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. they slide on top of a somewhat fluid part ...
... The crust and upper mantle is made up of plates. The crust and upper mantle is called the lithosphere Scientists believe that the plates move about 2 inches per year. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. they slide on top of a somewhat fluid part ...
Composite Volcanoes - Wallkill Valley Regional High School
... different layers. The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you wer ...
... different layers. The crust is the layer that you live on, and it is the most widely studied and understood. The mantle is much hotter and has the ability to flow. The outer core and inner core are even hotter with pressures so great you would be squeezed into a ball smaller than a marble if you wer ...
Earth Science: Tectonic Plates Section 1-1
... evidence of continental drift. Mountain ranges in Africa and South America and coal mines in Europe and North America line up. 3) Fossils have also provided evidence. A fossil is any trace of an ancient organism preserved in rock. Similar plant fossils have been found in Africa, South America, Austr ...
... evidence of continental drift. Mountain ranges in Africa and South America and coal mines in Europe and North America line up. 3) Fossils have also provided evidence. A fossil is any trace of an ancient organism preserved in rock. Similar plant fossils have been found in Africa, South America, Austr ...
8th Grade Science Final - Union Beach School District
... 3. Which layers make up the tectonic plates? lithosphere – all of the crust and the upper mantle ...
... 3. Which layers make up the tectonic plates? lithosphere – all of the crust and the upper mantle ...
File
... 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. ...
... 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. ...
What is Plate Tectonics?
... ____________________________: where the more dense plate slides under the less dense plate The denser oceanic plate sinks (subducts) beneath the less-dense continental crust ____________________________ occur at subduction zones Type 2 ...
... ____________________________: where the more dense plate slides under the less dense plate The denser oceanic plate sinks (subducts) beneath the less-dense continental crust ____________________________ occur at subduction zones Type 2 ...
Divergent Plate Boundaries (plates move )
... under the _________ lithosphere and is called a _________ zone. A_________ is formed where it bends down. As the oceanic lithosphere descends, it triggers _________ due to the release of the salt _________ it contains. The _______ rises creating a chain of __________ called a continental _________ _ ...
... under the _________ lithosphere and is called a _________ zone. A_________ is formed where it bends down. As the oceanic lithosphere descends, it triggers _________ due to the release of the salt _________ it contains. The _______ rises creating a chain of __________ called a continental _________ _ ...
Plate Tectonic Notes
... Scientists discovered Convection currents – movement of partly molten rock in the Asthenosphere, driven by, heated, rising material from mantle. The currents put friction on overlying layers of crust & cause plates to move. ...
... Scientists discovered Convection currents – movement of partly molten rock in the Asthenosphere, driven by, heated, rising material from mantle. The currents put friction on overlying layers of crust & cause plates to move. ...
Rocks and Minerals 2 Igneous
... Igneous Rock Features: Mafic • Mafic rocks are rich in dark plagioclase feldspar and pyroxene. – Example the gabbro family of rocks. ...
... Igneous Rock Features: Mafic • Mafic rocks are rich in dark plagioclase feldspar and pyroxene. – Example the gabbro family of rocks. ...
Earth and atmosphere Topic Checklist
... Earth and its Atmosphere Topic Checklist I should know: ...
... Earth and its Atmosphere Topic Checklist I should know: ...
Origins of Magma
... Chemical analyses of basalts from mid-ocean ridges and volcanoes within the plates show that the magma sources are different. As described before, the sources of basalts in divergent zones are relatively shallow. However, basalts forming volcanoes within plates are most likely from the deep mantle. ...
... Chemical analyses of basalts from mid-ocean ridges and volcanoes within the plates show that the magma sources are different. As described before, the sources of basalts in divergent zones are relatively shallow. However, basalts forming volcanoes within plates are most likely from the deep mantle. ...
Our_Dynamic_Earth_2012
... asthenosphere - solid, plastic layer of the mantle beneath the lithosphere; made of mantle rock that flows slowly, which allows tectonic plates to move on top of it. ...
... asthenosphere - solid, plastic layer of the mantle beneath the lithosphere; made of mantle rock that flows slowly, which allows tectonic plates to move on top of it. ...
The Geosphere
... Same waves that are caused by earthquakes. Measure changes in speed/direction of seismic waves. ...
... Same waves that are caused by earthquakes. Measure changes in speed/direction of seismic waves. ...
Earth Science Vocab
... Convection current- a circulation pattern in which material is heated and rises in one area, then cools and sinks in another area, flowing in a continuous loop ...
... Convection current- a circulation pattern in which material is heated and rises in one area, then cools and sinks in another area, flowing in a continuous loop ...
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.