Earth`s History - mrgsearthsciencepage
... – An extrusion is younger than the rock below it, but older than the rock that will form on top. – The rock below the extrusion will show a zone of contact metamorphism where the hot lava baked it. ...
... – An extrusion is younger than the rock below it, but older than the rock that will form on top. – The rock below the extrusion will show a zone of contact metamorphism where the hot lava baked it. ...
Regents Earth Science Curriculum Map
... classroom and laboratory. Safely and accurately use the following measurement tools: metric ruler and ...
... classroom and laboratory. Safely and accurately use the following measurement tools: metric ruler and ...
Chapter 2: Rocks of the Midwestern US
... semifluid layer of the Earth, below the outer rigid lithosphere, forming the upper part of the mantle. ...
... semifluid layer of the Earth, below the outer rigid lithosphere, forming the upper part of the mantle. ...
1 Enter question text... Intrusive Igneous Rocks Igneous Rocks
... Igneous Review • Magma is molten rock below the Earth’s surface. • Lava is magma on the Earth’s surface. • Igneous rocks form from cooling of (1) magma = intrusive ...
... Igneous Review • Magma is molten rock below the Earth’s surface. • Lava is magma on the Earth’s surface. • Igneous rocks form from cooling of (1) magma = intrusive ...
Ch 8 4 Earth_s Layered Structure
... temperature, pressure, and density with depth Depending on the physical environment (temperature and pressure), a material may behave like a brittle solid, a putty, or a liquid Earth can be divided into layers based on physical properties – the lithosphere, asthenosphere, outer core, and inner core. ...
... temperature, pressure, and density with depth Depending on the physical environment (temperature and pressure), a material may behave like a brittle solid, a putty, or a liquid Earth can be divided into layers based on physical properties – the lithosphere, asthenosphere, outer core, and inner core. ...
220 12LectureDetails11
... When isostatic equilibrium is achieved, the total mass above the compensation depth must be the same for both continents and oceans. Consequently, mountains stick up a little bit and down a lot. Once isostatic equilibrium is achieved, the height of a mountain belt will depend on the density and tota ...
... When isostatic equilibrium is achieved, the total mass above the compensation depth must be the same for both continents and oceans. Consequently, mountains stick up a little bit and down a lot. Once isostatic equilibrium is achieved, the height of a mountain belt will depend on the density and tota ...
This PDF file is subject to the following conditions and... Copyright © 2006, The Geological Society of America, Inc. (GSA)....
... Greenland craton represent an accretionary complex, but this proposal has been disputed. Each of these terranes contains lithotectonic elements that could not have formed in a single tectonic setting but are now intimately intermixed. Oceanic components include mafic and ultramafic volcanic rocks, g ...
... Greenland craton represent an accretionary complex, but this proposal has been disputed. Each of these terranes contains lithotectonic elements that could not have formed in a single tectonic setting but are now intimately intermixed. Oceanic components include mafic and ultramafic volcanic rocks, g ...
IPLS Pages - Plain Local Schools
... In relative dating, geologists follow several principles: the law of superposition, the principle of original horizontality, and the principle of cross-cutting relationships. • The method that geologists use to place rocks in chronological order is called relative dating. • The law of superposition ...
... In relative dating, geologists follow several principles: the law of superposition, the principle of original horizontality, and the principle of cross-cutting relationships. • The method that geologists use to place rocks in chronological order is called relative dating. • The law of superposition ...
Unit1EarthsStructure 104.50KB 2017-03-29 12
... This heat causes the convection currents to rise (rising limb), until they reach the lithosphere where they diverge. Where the convection current descends (descending limb), due to cooling, the lithosphere is pulled downwards (known as dragging). Plates are at their hottest nearest the mid-oceanic ...
... This heat causes the convection currents to rise (rising limb), until they reach the lithosphere where they diverge. Where the convection current descends (descending limb), due to cooling, the lithosphere is pulled downwards (known as dragging). Plates are at their hottest nearest the mid-oceanic ...
Notes- Relative and Absolute Dating
... two rules for dating rocks: 2. If a fault or another rock cuts through a layer it happened after (and is younger than) the layer ...
... two rules for dating rocks: 2. If a fault or another rock cuts through a layer it happened after (and is younger than) the layer ...
Review
... 1. What lines of evidence did Wegener present to support his theory of continental drift? 2. What mechanism did Wegener propose to drive continental drift? 3. What information did Wegener lack to have a more complete theory? 4. What was Harry Hess’ contribution to plate tectonics? 5. What is a typic ...
... 1. What lines of evidence did Wegener present to support his theory of continental drift? 2. What mechanism did Wegener propose to drive continental drift? 3. What information did Wegener lack to have a more complete theory? 4. What was Harry Hess’ contribution to plate tectonics? 5. What is a typic ...
Final Exam Study Guide 2016
... 5. List and describe the evidence found by Wegener that supported his hypothesis of continental drift. 6. List and describe the movement at plate boundaries. Draw a diagram of each type. 7. Why didn’t scientists first accept Wegener’s hypothesis that a single continent called Pangaea once existed? 8 ...
... 5. List and describe the evidence found by Wegener that supported his hypothesis of continental drift. 6. List and describe the movement at plate boundaries. Draw a diagram of each type. 7. Why didn’t scientists first accept Wegener’s hypothesis that a single continent called Pangaea once existed? 8 ...
Metasedimentary rocks, associated intrusions and tec
... that further isotopic age studies are necessary to determine not only the depositional age and if possible the source of the sediments, but also subsequent tectonic and metamorphic events. Hopefully, this paper will serve to focus attention on relationships and events in need of further geological a ...
... that further isotopic age studies are necessary to determine not only the depositional age and if possible the source of the sediments, but also subsequent tectonic and metamorphic events. Hopefully, this paper will serve to focus attention on relationships and events in need of further geological a ...
Answer Key
... Eurasian Plate. At the top of Mt. Everest (8 800 meters) in the Himalayan Mountains, climbers have found fossilized marine shells in the surface bedrock. From this observation, which conclusion can be made about the origin of the Himalayan Mountains? ...
... Eurasian Plate. At the top of Mt. Everest (8 800 meters) in the Himalayan Mountains, climbers have found fossilized marine shells in the surface bedrock. From this observation, which conclusion can be made about the origin of the Himalayan Mountains? ...
the granulite belt of lapland and the belomorides
... the eastern Baltic Shield is characterized by two adjacent high-grade belts (Tana and Granulite belts) located between the Archean Inari-Kola craton to the east and the South Lapland-Karelia craton to the west. The Tana belt corresponded to a volcanic sequence (tholeiitic and calcalkaline series) su ...
... the eastern Baltic Shield is characterized by two adjacent high-grade belts (Tana and Granulite belts) located between the Archean Inari-Kola craton to the east and the South Lapland-Karelia craton to the west. The Tana belt corresponded to a volcanic sequence (tholeiitic and calcalkaline series) su ...
Plate tectonics in the Andes
... hydration and melting of a heterogeneous mantle wedge (including enriched sub-continental lithospheric mantle), crustal underplating of mantle-derived melts where MASH processes may occur, as well as crystallization of the underplates. Remelting of the underplate to produce tonalitic magmas and a po ...
... hydration and melting of a heterogeneous mantle wedge (including enriched sub-continental lithospheric mantle), crustal underplating of mantle-derived melts where MASH processes may occur, as well as crystallization of the underplates. Remelting of the underplate to produce tonalitic magmas and a po ...
Sea-Floor Spreading
... flowing layer below the solid part of the earth's mantle. When one plate moves, it affects all the others. The movement of some of these plates causes sea-floor spreading. Other (12) ...
... flowing layer below the solid part of the earth's mantle. When one plate moves, it affects all the others. The movement of some of these plates causes sea-floor spreading. Other (12) ...
Introduction - Shetland Amenity Trust
... million years ago the Iapetus Ocean closed and these rocks were caught between two colliding continents. The ocean crust was thrust, bent up steeply and left sitting on top of continental crust. You will see this continental crust in the west of the islands and explore the stranded ocean crust in th ...
... million years ago the Iapetus Ocean closed and these rocks were caught between two colliding continents. The ocean crust was thrust, bent up steeply and left sitting on top of continental crust. You will see this continental crust in the west of the islands and explore the stranded ocean crust in th ...
Name: :______Date:______ Working with Graphs (4) 1. Answer the
... 4. Answer the questions below based on the rock cycle diagram. ...
... 4. Answer the questions below based on the rock cycle diagram. ...
rocks
... 2002 Minerals Education Workshop Sponsored by: Indiana Department of Natural Resources – Division of Reclamation November 1-2, 2002 ...
... 2002 Minerals Education Workshop Sponsored by: Indiana Department of Natural Resources – Division of Reclamation November 1-2, 2002 ...
Ocean waves that wear away an island`s shoreline
... 9. The theory of continental drift states all the continents once were joined as a single supercontinent and have since drifted apart. 10. To support his theory, Alfred Wegener provided evidence from fossils, traces of anciet organisms preserved in rock. 11. The process of sea-floor spreading contin ...
... 9. The theory of continental drift states all the continents once were joined as a single supercontinent and have since drifted apart. 10. To support his theory, Alfred Wegener provided evidence from fossils, traces of anciet organisms preserved in rock. 11. The process of sea-floor spreading contin ...
Unit 1: Geology
... or slide past one another. Most volcanic activity and mountain building occur at the boundaries of these plates, often resulting in earthquakes. 2.2g Rocks are classified according to their method of formation. The three classes of rocks are sedimentary, metamorphic, and igneous. Most rocks show cha ...
... or slide past one another. Most volcanic activity and mountain building occur at the boundaries of these plates, often resulting in earthquakes. 2.2g Rocks are classified according to their method of formation. The three classes of rocks are sedimentary, metamorphic, and igneous. Most rocks show cha ...
Volcanic Rocks of South-Central New Mexico
... overlain by the late basaltic volcanic sequence. In the Animas Hills area, this rock is a black to dark blue, massive to scoriaceous basaltic andesite with a maximum thickness of about 800 feet. Farther to the south, just north of Sibley Mountain, this sequence also includes a series of latitic flow ...
... overlain by the late basaltic volcanic sequence. In the Animas Hills area, this rock is a black to dark blue, massive to scoriaceous basaltic andesite with a maximum thickness of about 800 feet. Farther to the south, just north of Sibley Mountain, this sequence also includes a series of latitic flow ...
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.