PowerPoint Presentation - Somerset Independent Schools
... 3. What do we call layers of rock? Strata 4. Sedimentary rocks are normally laid down in order, one on top of another. In a sequence, the oldest is at the bottom, the youngest is at the top. This is the principle of Superposition 5. Most sedimentary rocks are laid down in flat, horizontal layers. Th ...
... 3. What do we call layers of rock? Strata 4. Sedimentary rocks are normally laid down in order, one on top of another. In a sequence, the oldest is at the bottom, the youngest is at the top. This is the principle of Superposition 5. Most sedimentary rocks are laid down in flat, horizontal layers. Th ...
PPT - nsf margins
... Unusual characteristics of N Gulf Basins Too thick for typical oceanic crust Gravity modeling – density too low (not enough basalt in it) Shallow layers are mostly sediments – not much magma, no pillow basalts No lineated magnetic anomalies typical of oceanic crust Lower crustal Vp is slow (compare ...
... Unusual characteristics of N Gulf Basins Too thick for typical oceanic crust Gravity modeling – density too low (not enough basalt in it) Shallow layers are mostly sediments – not much magma, no pillow basalts No lineated magnetic anomalies typical of oceanic crust Lower crustal Vp is slow (compare ...
Unit 4 Chapter
... together and have since moved away from each other. According to Wegener, the super continent started breaking up about 200 million years ago. Fossil Evidence Wegener found similarities in the coastlines of the continents, and he found other evidence as well. He found identical fossils of the ______ ...
... together and have since moved away from each other. According to Wegener, the super continent started breaking up about 200 million years ago. Fossil Evidence Wegener found similarities in the coastlines of the continents, and he found other evidence as well. He found identical fossils of the ______ ...
Mineralogy, geochemistry, and chronology of REE
... Extraordinarily potassium-feldspar rich, brick-red rocks, termed episyenites, in the Caballo and Burro Mountains, New Mexico, have anomalously high concentrations of U, Th, and TREE (2,329 ppm, 9,721 ppm, and 1,378 ppm, respectively). Some episyenites contain high HREE (as much as 133 ppm Yb and 179 ...
... Extraordinarily potassium-feldspar rich, brick-red rocks, termed episyenites, in the Caballo and Burro Mountains, New Mexico, have anomalously high concentrations of U, Th, and TREE (2,329 ppm, 9,721 ppm, and 1,378 ppm, respectively). Some episyenites contain high HREE (as much as 133 ppm Yb and 179 ...
Explain the relationship between igneous activity, magmatic
... batholiths will be coarse and will undergo fractional crystallisation and so a wide range of rock types may occur. Remember they can form zoned intrusions with basic at the margin acid in the core and intermediate between he two. ...
... batholiths will be coarse and will undergo fractional crystallisation and so a wide range of rock types may occur. Remember they can form zoned intrusions with basic at the margin acid in the core and intermediate between he two. ...
Volcanoes and Igneous Activity Earth - Chapter 4
... Moves a lot of stuff, all sizes, in one big push ...
... Moves a lot of stuff, all sizes, in one big push ...
Lithological Moho boundary in Precambrian shields
... Controlled source seismic experiments in the Fennoscandian Shield and in the western part of the East European Craton (EEC) demonstrated that the Moho boundary is not always easily detectable by the methods based upon interpretation of P-waves (e.g. reflection profiling and wide-angle reflection and ...
... Controlled source seismic experiments in the Fennoscandian Shield and in the western part of the East European Craton (EEC) demonstrated that the Moho boundary is not always easily detectable by the methods based upon interpretation of P-waves (e.g. reflection profiling and wide-angle reflection and ...
KS4 Earth and Atmosphere 4795KB
... igneous – A rock formed by the crystallization of magma. mantle – The layer of molten, semi-solid rock under the Earth’s crust. ...
... igneous – A rock formed by the crystallization of magma. mantle – The layer of molten, semi-solid rock under the Earth’s crust. ...
Plate Tectonics
... • _______________________ called intra-plate regions – These volcanoes are believed to have sources deeper down in the Earth's mantle that remain in a relatively fixed location. –Plates move over the hot sport –Ex. The Hawaiian Islands Transform Plate Boundaries ...
... • _______________________ called intra-plate regions – These volcanoes are believed to have sources deeper down in the Earth's mantle that remain in a relatively fixed location. –Plates move over the hot sport –Ex. The Hawaiian Islands Transform Plate Boundaries ...
Porosity is a measure of volume of the free space in a rock. Most
... up the rock. You can think of porosity like the holes in a sponge. Some rocks contain much more pore space than others, for example, sandstone composed of evenly sized sand grains contains more pore space than a tightly crystallized granite. Permeability is a measure of the interconnectedness of por ...
... up the rock. You can think of porosity like the holes in a sponge. Some rocks contain much more pore space than others, for example, sandstone composed of evenly sized sand grains contains more pore space than a tightly crystallized granite. Permeability is a measure of the interconnectedness of por ...
Geology of Minnesota - A Guide for Teachers
... ncar the Precambrian-Phanerozoic boundary where more complex fomls such as jellyfish first appear. Some of these organisms arc still living today. Because these fossils have simple morphologies, they can nOI be used to subdivide the Precambrian pan of geologic time. Other methods. thereforc. havc be ...
... ncar the Precambrian-Phanerozoic boundary where more complex fomls such as jellyfish first appear. Some of these organisms arc still living today. Because these fossils have simple morphologies, they can nOI be used to subdivide the Precambrian pan of geologic time. Other methods. thereforc. havc be ...
File - Consuegra Science
... continental slope, continental shelf, seamount, abyssal plain, Convergent boundary, transform boundary, divergent boundary, subduction, oceanic crust, continental crust, Core, mantle, crust, lithosphere, asthenosphere, mesosphere, convection current, magma, molten, density, earthquake, tsunami, p-wa ...
... continental slope, continental shelf, seamount, abyssal plain, Convergent boundary, transform boundary, divergent boundary, subduction, oceanic crust, continental crust, Core, mantle, crust, lithosphere, asthenosphere, mesosphere, convection current, magma, molten, density, earthquake, tsunami, p-wa ...
Rocks and Weathering
... weathering- the process that breaks down rock through chemical changes. *Chemical weathering produces rock particles that have a different ...
... weathering- the process that breaks down rock through chemical changes. *Chemical weathering produces rock particles that have a different ...
Notes - Plate Tectonics
... PLATE TECTONICS - TO BUILD Earth’s lithospheric crust: - is divided into large and small plates - makes up the ocean crust AND the continental crust, along with the upper mantle - these plates move THEORY OF PLATE TECTONICS – Earth’s crust and upper mantle is broken up into lithospheric plates that ...
... PLATE TECTONICS - TO BUILD Earth’s lithospheric crust: - is divided into large and small plates - makes up the ocean crust AND the continental crust, along with the upper mantle - these plates move THEORY OF PLATE TECTONICS – Earth’s crust and upper mantle is broken up into lithospheric plates that ...
Activity
... lying beneath the Earth plates. As the plates move slowly over a hot spot, hot mantle forces its way up through the crust forming a volcano. More volcanoes form as the plate continues to move creating a mountain range. Many hot spots are located in the interior of plates…like the center of East Anta ...
... lying beneath the Earth plates. As the plates move slowly over a hot spot, hot mantle forces its way up through the crust forming a volcano. More volcanoes form as the plate continues to move creating a mountain range. Many hot spots are located in the interior of plates…like the center of East Anta ...
FIRST MOTION STUDIES OF EARTHQUAKES
... NNW-SSE Fault Plane with steep dip to N or with shallower dip to the S ...
... NNW-SSE Fault Plane with steep dip to N or with shallower dip to the S ...
secondary education 1 eso
... categories: Plutonic rock and Volcanic rock. Plutonic rocks result when the magma cools and crystallises slowly within the Earth's crust, while Volcanic rocks result from the magma reaching the surface either as lava. Sedimentary rocks Sedimentary rocks are formed by deposition of other rocks or the ...
... categories: Plutonic rock and Volcanic rock. Plutonic rocks result when the magma cools and crystallises slowly within the Earth's crust, while Volcanic rocks result from the magma reaching the surface either as lava. Sedimentary rocks Sedimentary rocks are formed by deposition of other rocks or the ...
lecture08x
... • The oldest known minerals ever found on Earth include some from NW Australia. The containing rock (a conglomerate) is about 3.0 billion years old. The rock contains detrital grains of the mineral zircon that are 3.96 billion years old. The dates are based on datable Uranium in the Zircons. •Simila ...
... • The oldest known minerals ever found on Earth include some from NW Australia. The containing rock (a conglomerate) is about 3.0 billion years old. The rock contains detrital grains of the mineral zircon that are 3.96 billion years old. The dates are based on datable Uranium in the Zircons. •Simila ...
1. The traditional divisions are physical and historical geology, often
... is known as the law of superposition and assumes that all sedimentary strata were originally deposited as horizontal layers. Fossils (remains of ancient living organisms) changed through geologic time so that specific fossils or assemblages of fossils are found only in strata of specific ages and ar ...
... is known as the law of superposition and assumes that all sedimentary strata were originally deposited as horizontal layers. Fossils (remains of ancient living organisms) changed through geologic time so that specific fossils or assemblages of fossils are found only in strata of specific ages and ar ...
Collecting Data: Article for Students
... 25 GPS (global positioning system) devices around the country. Similar to the GPS in your phone or car, these devices use satellites to identify any location on Earth. But this equipment is even more accurate, so it can measure a position within a few millimeters. Over time, GPS can detect tiny move ...
... 25 GPS (global positioning system) devices around the country. Similar to the GPS in your phone or car, these devices use satellites to identify any location on Earth. But this equipment is even more accurate, so it can measure a position within a few millimeters. Over time, GPS can detect tiny move ...
01 - Cobb Learning
... 13. When a layer or several layers of rock are missing from a rock-layer sequence, this is called a(n) ______________________ 14. Name two possible explanations for a missing layer in a rock-layer sequence. _______________________________________________________________ _____________________________ ...
... 13. When a layer or several layers of rock are missing from a rock-layer sequence, this is called a(n) ______________________ 14. Name two possible explanations for a missing layer in a rock-layer sequence. _______________________________________________________________ _____________________________ ...
How Do You Study the Past? (The Rock Record: Absolute
... IV. Dating Fossils A. Relative-Age Dating: 1. Definition: Dating rocks and fossils by placing them in chronological order without exact dates. 2. Geologic Principles (used in this dating process, also called Steno’s laws): a. Original Horizontality • Sedimentary rocks are deposited in horizontal la ...
... IV. Dating Fossils A. Relative-Age Dating: 1. Definition: Dating rocks and fossils by placing them in chronological order without exact dates. 2. Geologic Principles (used in this dating process, also called Steno’s laws): a. Original Horizontality • Sedimentary rocks are deposited in horizontal la ...
II. Why Do We Study Fossils Found in Rocks? I. What is a Fossil
... IV. Dating Fossils A. Relative-Age Dating: 1. Definition: Dating rocks and fossils by placing them in chronological order without exact dates. 2. Geologic Principles (used in this dating process, also called Steno’s laws): a. Original Horizontality • Sedimentary rocks are deposited in horizont ...
... IV. Dating Fossils A. Relative-Age Dating: 1. Definition: Dating rocks and fossils by placing them in chronological order without exact dates. 2. Geologic Principles (used in this dating process, also called Steno’s laws): a. Original Horizontality • Sedimentary rocks are deposited in horizont ...
An ore is a rock rich in valuable minerals
... removed from the Earth’s crust. Workers use machines to dig out the ore. ...
... removed from the Earth’s crust. Workers use machines to dig out the ore. ...
8-3.4b - S2TEM Centers SC
... the earth and cooled before it reached the surface. Place dot on or next to the volcano where "intrusive igneous rocks" are shown. Sample 8 - Gabbro - Dark-colored intrusive igneous rock. It has a higher iron content than the granite so it is darker in color and more dense than granite. It cooled wi ...
... the earth and cooled before it reached the surface. Place dot on or next to the volcano where "intrusive igneous rocks" are shown. Sample 8 - Gabbro - Dark-colored intrusive igneous rock. It has a higher iron content than the granite so it is darker in color and more dense than granite. It cooled wi ...
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.