Plate Tectonics
... floor spreading in 1962. • Sea Floor Spreading Theory- idea that the seafloor moves and carries the continents with it. • Caused by divergent boundaries moving apart and allowing the liquid like asthenosphere to move upward and cool creating new oceanic crust. ...
... floor spreading in 1962. • Sea Floor Spreading Theory- idea that the seafloor moves and carries the continents with it. • Caused by divergent boundaries moving apart and allowing the liquid like asthenosphere to move upward and cool creating new oceanic crust. ...
Earthquake Occurrences in Different Tectonic Settings
... Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. Perhaps the best known of the divergent boundaries is the Mid-Atlantic Ridge. This submerged mountain range, which extends from the Arctic Ocean to beyond th ...
... Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle. Perhaps the best known of the divergent boundaries is the Mid-Atlantic Ridge. This submerged mountain range, which extends from the Arctic Ocean to beyond th ...
Unit 4 Lesson 3 Mountain Building
... • Mountains can form through folding, volcanism, and faulting. • Uplift, a process that can cause land to rise, can also contribute to mountain building. • Because tectonic plates are always in motion, some mountains are constantly being uplifted. ...
... • Mountains can form through folding, volcanism, and faulting. • Uplift, a process that can cause land to rise, can also contribute to mountain building. • Because tectonic plates are always in motion, some mountains are constantly being uplifted. ...
6.1 Earthquakes and
... Missouri in 1812 There is an ancient fault zone deep within the North American Plate along the Mississippi River region. China also has earthquakes in the middle of the Asian plate ...
... Missouri in 1812 There is an ancient fault zone deep within the North American Plate along the Mississippi River region. China also has earthquakes in the middle of the Asian plate ...
TOO OF THE HEAD - Joint Nature Conservation Committee
... palaeontological evidence from the Hoy Volcanic Member or the immediately overlying sandstones, the underlying strata on Hoy and the proposed laterally equivalent strata to the lower part of the ‘Hoy Sandstone' in eastern Orkney, are both assigned to the Givetian on palynological evidence (Marshall, ...
... palaeontological evidence from the Hoy Volcanic Member or the immediately overlying sandstones, the underlying strata on Hoy and the proposed laterally equivalent strata to the lower part of the ‘Hoy Sandstone' in eastern Orkney, are both assigned to the Givetian on palynological evidence (Marshall, ...
Investigation 5: Earthquakes, Volcanoes, and Mountains Vocabulary
... lithosphere, and when these forces become very large, the rock breaks. This break in rocks is called a fault. Faults are fractures in the Earth’s surface where the rocks have broken and moved due to plate tectonics. The San Andreas Fault (Figure 1) and Hayward Faults in California are examples of fa ...
... lithosphere, and when these forces become very large, the rock breaks. This break in rocks is called a fault. Faults are fractures in the Earth’s surface where the rocks have broken and moved due to plate tectonics. The San Andreas Fault (Figure 1) and Hayward Faults in California are examples of fa ...
The story of granite and Bega Cheese
... The dairy farm grasslands, cleared of eucalypt forests, are typical of the rich soils formed on granite rocks. The grasslands here are the northern margins of the granites of the Bega Batholith. This huge suite of granite is composed of over 130 separate plutons (including the Moruya Granite) cover ...
... The dairy farm grasslands, cleared of eucalypt forests, are typical of the rich soils formed on granite rocks. The grasslands here are the northern margins of the granites of the Bega Batholith. This huge suite of granite is composed of over 130 separate plutons (including the Moruya Granite) cover ...
Geology of the Sierra Nevada Mountain Range
... • Kula and Farallon plates are subducted under the North American plate. • Hot felsic magma coming from the mantle starts rising, producing a chain of volcanoes on the continent. • Volcanic eruptions produce layers of solidified magma, most of which stays deep below the surface and forms plutons of ...
... • Kula and Farallon plates are subducted under the North American plate. • Hot felsic magma coming from the mantle starts rising, producing a chain of volcanoes on the continent. • Volcanic eruptions produce layers of solidified magma, most of which stays deep below the surface and forms plutons of ...
U6-Geologic History Power Point
... Rock layers are older than any faulting are younger event that cuts across them. Example: Folding& ________________________ than the surrounding rock. Igneous intrusions are also younger ________________________________________________________. The sedimentary rocks are older than the igneous intrus ...
... Rock layers are older than any faulting are younger event that cuts across them. Example: Folding& ________________________ than the surrounding rock. Igneous intrusions are also younger ________________________________________________________. The sedimentary rocks are older than the igneous intrus ...
Sedimentary Test 2 Review Guide
... -Law of Horizontal Deposition – Sediment is deposited and lithified in flat layers -Law of Superposition – oldest layers are on the bottom and youngest is on the top -Law of Cross-cutting – anything that cuts across sedimentary layers (faults or igneous intrusions) are younger than the layers that t ...
... -Law of Horizontal Deposition – Sediment is deposited and lithified in flat layers -Law of Superposition – oldest layers are on the bottom and youngest is on the top -Law of Cross-cutting – anything that cuts across sedimentary layers (faults or igneous intrusions) are younger than the layers that t ...
Incremental Emplacement of Nelson Batholith
... classified the compositions based on the QAP classification as Diorite (#29), Quartz monzonite (#10, 23, 30), Granodiorite (#21) and Granite (#34). Whole Rock XRF and ICP analyses were performed at the Geoanalytical labs of the Washington State University. The weight % SiO2 of the samples are 52.74% ...
... classified the compositions based on the QAP classification as Diorite (#29), Quartz monzonite (#10, 23, 30), Granodiorite (#21) and Granite (#34). Whole Rock XRF and ICP analyses were performed at the Geoanalytical labs of the Washington State University. The weight % SiO2 of the samples are 52.74% ...
Colour version - the Dartmoor National Park Authority
... (the long story over hundreds of millions of years) All rocks are formed in one of the following three ways (the Dartmoor examples are listed below): Molten rocks that have cooled and turned solid - example granite ...
... (the long story over hundreds of millions of years) All rocks are formed in one of the following three ways (the Dartmoor examples are listed below): Molten rocks that have cooled and turned solid - example granite ...
mountain building textbook notes
... blocks of crust are uplifted and tilted along normal faults. Ocean ridges (divergent) and the Rocky Mountains are fault-block. • Grabens are formed by the downward displacement of fault-bounded blocks. • Horsts are elongated, uplifted blocks of crust bounded by faults. ...
... blocks of crust are uplifted and tilted along normal faults. Ocean ridges (divergent) and the Rocky Mountains are fault-block. • Grabens are formed by the downward displacement of fault-bounded blocks. • Horsts are elongated, uplifted blocks of crust bounded by faults. ...
Plate Tectonics
... 2. Click on the assignment that says “Tectonic Forces” 3. Click “Start Here” at the bottom of the screen and listen to the information. Then, close out that window. 4. Click a boundary from the box that says “Choose a type of boundary” at the top of the screen. 5. Click the white circles to see what ...
... 2. Click on the assignment that says “Tectonic Forces” 3. Click “Start Here” at the bottom of the screen and listen to the information. Then, close out that window. 4. Click a boundary from the box that says “Choose a type of boundary” at the top of the screen. 5. Click the white circles to see what ...
fault
... AND SHEARING FORCES • When enormous stresses build and push large intact rock masses beyond their yield limit, faulting of the surface is likely to occur. • A fault is a fracture in the rock layers along which movement occurs Movement is the displacement of once connected blocks of rock along a faul ...
... AND SHEARING FORCES • When enormous stresses build and push large intact rock masses beyond their yield limit, faulting of the surface is likely to occur. • A fault is a fracture in the rock layers along which movement occurs Movement is the displacement of once connected blocks of rock along a faul ...
Section 2: Igneous Rock
... What is the difference between fine-grained and coarse-grained igneous rock? Fine-grained igneous rock forms mainly from magma that cools rapidly; coarse-grained igneous rock forms mainly from magma that cools more slowly. Composition of Igneous Rock The mineral composition of an igneous rock is d ...
... What is the difference between fine-grained and coarse-grained igneous rock? Fine-grained igneous rock forms mainly from magma that cools rapidly; coarse-grained igneous rock forms mainly from magma that cools more slowly. Composition of Igneous Rock The mineral composition of an igneous rock is d ...
East African Rift System Half-Graben Model Eastern branch of
... If the tensional forces exceed the breaking strength of the upwarped crustal rocks cracks occur (i.e. the tension is released by earthquakes) leading to a Y-shaped triple junction at the spherical earth surface (Figure 4). ...
... If the tensional forces exceed the breaking strength of the upwarped crustal rocks cracks occur (i.e. the tension is released by earthquakes) leading to a Y-shaped triple junction at the spherical earth surface (Figure 4). ...
Fall and Spring/Physical Science Title: GEOLOGY Revised 11/95
... three or four smaller groups, line each group up shoulder to shoulder, and have them “settle out” as a group. One group will stop settling on a line that represents the bottom of the ocean. Each successive group will line up behind the first group. As they settle, they will compact close together in ...
... three or four smaller groups, line each group up shoulder to shoulder, and have them “settle out” as a group. One group will stop settling on a line that represents the bottom of the ocean. Each successive group will line up behind the first group. As they settle, they will compact close together in ...
Endogenetic processes and landforms
... that cause the ground to move. Rock layers at the surface of the earth are broken, twisted and shaken when the ground moves. Land is destroyed in many places and created in other places. When the land is shaped by endogenetic Forces we call this endogentic processes. There are 3 main endogenetic pro ...
... that cause the ground to move. Rock layers at the surface of the earth are broken, twisted and shaken when the ground moves. Land is destroyed in many places and created in other places. When the land is shaped by endogenetic Forces we call this endogentic processes. There are 3 main endogenetic pro ...
Historical Geology
... • We now call what Hutton observed an unconformity, – but he properly interpreted its formation ...
... • We now call what Hutton observed an unconformity, – but he properly interpreted its formation ...
Chapter 7 metamorphic rocks-w-2017
... contain water in their crystalline structures. Elevated temperatures and pressures cause the dehydration of these minerals. Once expelled, these hot fluids promote recrystallization by enhancing the migration of mineral matter. As discussed earlier, the metamorphism of shale to slate involves clay m ...
... contain water in their crystalline structures. Elevated temperatures and pressures cause the dehydration of these minerals. Once expelled, these hot fluids promote recrystallization by enhancing the migration of mineral matter. As discussed earlier, the metamorphism of shale to slate involves clay m ...
Geology study cards
... creates pressure. This pressure can cause a Similar rocks found on opposite continents volcanic eruption!! Glaciers discovered in very warm locations. ...
... creates pressure. This pressure can cause a Similar rocks found on opposite continents volcanic eruption!! Glaciers discovered in very warm locations. ...
MSU Billings Government Documents Weeding List I 19.3 Numbers 1900’s
... Structural analysis of archean rocks in the Negaunee area, Michigan—constraints on archean versus early Proterozoic deformation. I 19.3: 1904-P ...
... Structural analysis of archean rocks in the Negaunee area, Michigan—constraints on archean versus early Proterozoic deformation. I 19.3: 1904-P ...
No Slide Title
... • Sediment accumulation increases away from ridge - “pelagic rain” • Depth of crust increases away from ridge • Age of crust increases away from ridge ...
... • Sediment accumulation increases away from ridge - “pelagic rain” • Depth of crust increases away from ridge • Age of crust increases away from ridge ...
Algoman orogeny
The Algoman orogeny, known as the Kenoran orogeny in Canada, was an episode of mountain-building (orogeny) during the Late Archean Eon that involved repeated episodes of continental collisions, compressions and subductions. The Superior province and the Minnesota River Valley terrane collided about 2,700 to 2,500 million years ago. The collision folded the Earth's crust and produced enough heat and pressure to metamorphose the rock. Blocks were added to the Superior province along a 1,200 km (750 mi) boundary that stretches from present-day eastern South Dakota into the Lake Huron area. The Algoman orogeny brought the Archaen Eon to a close, about 2,500 million years ago; it lasted less than 100 million years and marks a major change in the development of the earth’s crust.The Canadian shield contains belts of metavolcanic and metasedimentary rocks formed by the action of metamorphism on volcanic and sedimentary rock. The areas between individual belts consist of granites or granitic gneisses that form fault zones. These two types of belts can be seen in the Wabigoon, Quetico and Wawa subprovinces; the Wabigoon and Wawa are of volcanic origin and the Quetico is of sedimentary origin. These three subprovinces lie linearly in southwestern- to northeastern-oriented belts about 140 km (90 mi) wide on the southern portion of the Superior Province.The Slave province and portions of the Nain province were also affected. Between about 2,000 and 1,700 million years ago these combined with the Sask and Wyoming cratons to form the first supercontinent, the Kenorland supercontinent.