Earth Processes Part 1: Lithosphere
... ROCK CYCLE - All rocks go through a cycle, constantly changing shape due to weathering, erosion, heat, pressure, hardening and cooling. They can change from one type of rock to another. (For example, a sedimentary rock will not always be a sedimentary rock.) Weathering-the breaking down of rocks by ...
... ROCK CYCLE - All rocks go through a cycle, constantly changing shape due to weathering, erosion, heat, pressure, hardening and cooling. They can change from one type of rock to another. (For example, a sedimentary rock will not always be a sedimentary rock.) Weathering-the breaking down of rocks by ...
Notes_-_Earths_Layers
... Common rock types: granite and rhyolite Rocks are less dense, lighter in color than oceanic crust Oceanic Crust Exists under oceans Average thickness is 7 Km Chemical composition: rocks rich in iron and magnesium silicates Common rock types: basalt, obsidian, gabbro Rocks are more dens ...
... Common rock types: granite and rhyolite Rocks are less dense, lighter in color than oceanic crust Oceanic Crust Exists under oceans Average thickness is 7 Km Chemical composition: rocks rich in iron and magnesium silicates Common rock types: basalt, obsidian, gabbro Rocks are more dens ...
Ocean waves that wear away an island`s shoreline
... soft rock that bends like plastic. 4. Oceanic crust is made up mostly of dense rock called ____________________. 5. When you touch a hot plate, the transfer of heat from the plate to your hand is called ____________________. 6. The energy from the sun that warms your face is transferred by a process ...
... soft rock that bends like plastic. 4. Oceanic crust is made up mostly of dense rock called ____________________. 5. When you touch a hot plate, the transfer of heat from the plate to your hand is called ____________________. 6. The energy from the sun that warms your face is transferred by a process ...
2nd 9 Weeks Test Review
... How quickly do the plates move? 1-12 cm per year. How do the plates move? They float on the taffy-like asthenosphere. Where can the results of plate movement be seen? At plate boundaries. What evidence supports continental drift? Same rocks and fossils on different contents, puzzle-like fit of the c ...
... How quickly do the plates move? 1-12 cm per year. How do the plates move? They float on the taffy-like asthenosphere. Where can the results of plate movement be seen? At plate boundaries. What evidence supports continental drift? Same rocks and fossils on different contents, puzzle-like fit of the c ...
Petrology Instructor Fundamentals Magmatic Rock Bodies Study of
... • Fractionate with the major elements • Example – Ba follows Ca by substitution in plagioclase ...
... • Fractionate with the major elements • Example – Ba follows Ca by substitution in plagioclase ...
2.13 Divergent Plate Boundaries
... As two oceanic plates move apart, the lithosphere is being extended, thinned and fractured. Magma form the asthenosphere upwells into the rift valley. ...
... As two oceanic plates move apart, the lithosphere is being extended, thinned and fractured. Magma form the asthenosphere upwells into the rift valley. ...
Volcanoes
... downhill. The viscous magma/lava can trap volcanic gases and commonly result in explosive eruptions. As an initially low viscosity basalt lava flow cools, it can also become very viscous. ...
... downhill. The viscous magma/lava can trap volcanic gases and commonly result in explosive eruptions. As an initially low viscosity basalt lava flow cools, it can also become very viscous. ...
5. North Atlantic Tertiary Igneous Province (NATP)
... Tertiary Igneous Province Rocks 1. Initiation of the Iceland mantle plume 65 mya 2. 63 mya uplift & updoming of continental crust raises Britain high above sea-level & actively eroded 3. 60 mya eruption from fissures onto continental crust of extensive sheets of basaltic lava (flood basalts) 4. 58 ...
... Tertiary Igneous Province Rocks 1. Initiation of the Iceland mantle plume 65 mya 2. 63 mya uplift & updoming of continental crust raises Britain high above sea-level & actively eroded 3. 60 mya eruption from fissures onto continental crust of extensive sheets of basaltic lava (flood basalts) 4. 58 ...
Document
... • glowing avalanches or nueé ardente is a hot (700-1000 degree C) ash-laden gas cloud • moves at extremely fast speed (average of 160 km/hr) down the volcano slope • rock formed by this is called ignimbrite or welded tuff ...
... • glowing avalanches or nueé ardente is a hot (700-1000 degree C) ash-laden gas cloud • moves at extremely fast speed (average of 160 km/hr) down the volcano slope • rock formed by this is called ignimbrite or welded tuff ...
Volcanism and volcanic rocks
... • glowing avalanches or nueé ardente is a hot (700-1000 degree C) ash-laden gas cloud • moves at extremely fast speed (average of 160 km/hr) down the volcano slope • rock formed by this is called ignimbrite or welded tuff ...
... • glowing avalanches or nueé ardente is a hot (700-1000 degree C) ash-laden gas cloud • moves at extremely fast speed (average of 160 km/hr) down the volcano slope • rock formed by this is called ignimbrite or welded tuff ...
Examples of Rock Families in the San Francisco Bay Area Yilin Lu
... Pillow shapes indicate that basalts are formed underwater while the basalts formed on land will have a shape of column. In addition, grain size is associated with energy of environment. Fine grains are related to low environmental energy. Among all six marine environments, ridge is the one that has ...
... Pillow shapes indicate that basalts are formed underwater while the basalts formed on land will have a shape of column. In addition, grain size is associated with energy of environment. Fine grains are related to low environmental energy. Among all six marine environments, ridge is the one that has ...
Melting of the mantle
... Andesite is the dominant rock type found in most island arcs; more common in older, more mature arcs, such as Japan; while basalts and basaltic-andesite are more common on younger, younger less mature arcs arcs, such as the Marianas Marianas. Volcanism is commonly aligned along a front that is bet ...
... Andesite is the dominant rock type found in most island arcs; more common in older, more mature arcs, such as Japan; while basalts and basaltic-andesite are more common on younger, younger less mature arcs arcs, such as the Marianas Marianas. Volcanism is commonly aligned along a front that is bet ...
Science Ch 5 webnotes
... Volcano: opening in Earth’s crust; most found where plates meet (usually where 1 plate is pushed under another…diving plate melts in the heat of the mantle and forms magma) Ring of Fire: circle of volcanoes around the Pacific Ocean Lava: magma which reaches the Earth’s surface Crater: depression for ...
... Volcano: opening in Earth’s crust; most found where plates meet (usually where 1 plate is pushed under another…diving plate melts in the heat of the mantle and forms magma) Ring of Fire: circle of volcanoes around the Pacific Ocean Lava: magma which reaches the Earth’s surface Crater: depression for ...
VOLCANIC FEATURES OF THE CENTRAL ATLANTIC OCEAN
... Similar to other ocean basins, the central Atlantic Ocean (roughly latitude 10° to 50° N) contains many (more than a hundred) volcanic seamounts grouped in chains, clusters, and individual features. Although the Atlantic Ocean crust has been forming continuously from the Early Jurassic to the presen ...
... Similar to other ocean basins, the central Atlantic Ocean (roughly latitude 10° to 50° N) contains many (more than a hundred) volcanic seamounts grouped in chains, clusters, and individual features. Although the Atlantic Ocean crust has been forming continuously from the Early Jurassic to the presen ...
The Rock Cycle - WordPress.com
... 5. The three main minerals that make up granite are quartz, feldspar, and mica 6. Obsidian does not have crystals because it is lava that cooled too quickly 7. Sediments are small parts of rock that are carried and deposited by water, wind, or ice 8. Acid reacts with calcium, and because the sedime ...
... 5. The three main minerals that make up granite are quartz, feldspar, and mica 6. Obsidian does not have crystals because it is lava that cooled too quickly 7. Sediments are small parts of rock that are carried and deposited by water, wind, or ice 8. Acid reacts with calcium, and because the sedime ...
Divergent margin animation text
... At divergent margins lithospheric plates move in opposite directions. The plates, which include crust and part of the upper mantle ride over the asthenosphere. As hot mantle rock rises to shallow depths, it begins to melt due to lowered pressure. This forms magma. Dense plutonic rock is created as t ...
... At divergent margins lithospheric plates move in opposite directions. The plates, which include crust and part of the upper mantle ride over the asthenosphere. As hot mantle rock rises to shallow depths, it begins to melt due to lowered pressure. This forms magma. Dense plutonic rock is created as t ...
Energy from Earth`s interior supports life in global ecosystem
... from the ones that support life in both the mud layers in the sea bed and the oceanic water column. It is possible that life based on chemosynthesis is found on other planets, where Active life or dead relics? the chemical environment permits. Our continued Dr Lever's basalt is 3.5 million years old ...
... from the ones that support life in both the mud layers in the sea bed and the oceanic water column. It is possible that life based on chemosynthesis is found on other planets, where Active life or dead relics? the chemical environment permits. Our continued Dr Lever's basalt is 3.5 million years old ...
Volcanoes: Nature`s Incredible Fireworks
... But sometimes part of a plate gets caught, and when it finally snaps back, the ground shudders hard and causes great damage. In 1906, a major earthquake destroyed much of San Francisco, California. Most magma moves toward the crust where it cools and sinks again. But some magma breaks through weak s ...
... But sometimes part of a plate gets caught, and when it finally snaps back, the ground shudders hard and causes great damage. In 1906, a major earthquake destroyed much of San Francisco, California. Most magma moves toward the crust where it cools and sinks again. But some magma breaks through weak s ...
volcanoes-study-guide
... Nonexplosive eruptions are common and they feature relatively calm flows of lava. Explosive eruptions are less common and produce large, explosive clouds of ash and dust. 5. How do silica levels affect an eruption?? Silica rich magma traps explosive gases. ...
... Nonexplosive eruptions are common and they feature relatively calm flows of lava. Explosive eruptions are less common and produce large, explosive clouds of ash and dust. 5. How do silica levels affect an eruption?? Silica rich magma traps explosive gases. ...
Lecture 17
... Magmas have higher concentrations of some elements that most other rocks and depending on the cooling processes affecting the magma, very high concentrations of certain elements can occur. Basic transport – diamonds are carried to the surface/near surface by exotic ultramafic volcanic rocks from a s ...
... Magmas have higher concentrations of some elements that most other rocks and depending on the cooling processes affecting the magma, very high concentrations of certain elements can occur. Basic transport – diamonds are carried to the surface/near surface by exotic ultramafic volcanic rocks from a s ...
Basalt
Basalt (pronounced /bəˈsɔːlt/, /ˈbæsɒlt/, /ˈbæsɔːlt/, or /ˈbeɪsɔːlt/)is a common extrusive igneous (volcanic) rock formed from the rapid cooling of basaltic lava exposed at or very near the surface of a planet or moon. Flood basalt describes the formation in a series of lava basalt flows.