Seismic Waves
... Surface waves are also known as L waves or long waves. These waves are the slowest waves of all, but they cause the most damage. Surface waves are felt at the surface. ...
... Surface waves are also known as L waves or long waves. These waves are the slowest waves of all, but they cause the most damage. Surface waves are felt at the surface. ...
Igneous Rocks and the Rock Cycle
... Earth’s surface, usually in the form of a volcanic eruption. There are two major classifications of igneous rocks: Intrusive igneous rocks are formed by magma that cools below the Earth’s surface. Extrusive igneous rocks are formed by lava that cools at the Earth’s surface. Intrusive igneous ...
... Earth’s surface, usually in the form of a volcanic eruption. There are two major classifications of igneous rocks: Intrusive igneous rocks are formed by magma that cools below the Earth’s surface. Extrusive igneous rocks are formed by lava that cools at the Earth’s surface. Intrusive igneous ...
Surveying Geology Concepts In Education Standards For A Rapidly
... fragmented distribution across the sciences, it is not surprising that developing a consensus about which of the geology concepts should be taught to schoolchildren is an arduous task. At the same time, clearly identifying the essence and relevance of school-taught geology is changing. Arguments can ...
... fragmented distribution across the sciences, it is not surprising that developing a consensus about which of the geology concepts should be taught to schoolchildren is an arduous task. At the same time, clearly identifying the essence and relevance of school-taught geology is changing. Arguments can ...
KS4-Earth-and-Atmosphere
... 2. How long ago were the CO2 and N2 levels in the atmosphere equal? ...
... 2. How long ago were the CO2 and N2 levels in the atmosphere equal? ...
Earth Forces - Jordanhill School
... 5. It is likely that the U.K will have an earthquake in the next 100 years? 6. The earths core is solid? 7. Some of the worlds islands are made up entirely from volcanic rock? 8. There are over 500 volcanoes in the world? 9. The Haiti earthquake was the biggest ever in ...
... 5. It is likely that the U.K will have an earthquake in the next 100 years? 6. The earths core is solid? 7. Some of the worlds islands are made up entirely from volcanic rock? 8. There are over 500 volcanoes in the world? 9. The Haiti earthquake was the biggest ever in ...
Ocean Basins Are Formed at Divergent Plate Boundaries
... visible. Red and orange colors indicate the crest of the ridge; dark blue, the deeper seabed on either side. The second insert shows the location of the ridge and associated valley in the Atlantic. © 2006 Brooks/Cole, a division of Thomson Learning, Inc. ...
... visible. Red and orange colors indicate the crest of the ridge; dark blue, the deeper seabed on either side. The second insert shows the location of the ridge and associated valley in the Atlantic. © 2006 Brooks/Cole, a division of Thomson Learning, Inc. ...
The origin of the nitrate ore fields from the Atacama Desert revisited
... crust, and due to its large ionic radius it is not incorporated into minerals remaining in the aqueous phase much longer than other halogens. In the nitrate ore fields of the Atacama Desert of northern Chile, iodine is highly enriched forming one of the largest reservoirs of iodine in the Earth’s co ...
... crust, and due to its large ionic radius it is not incorporated into minerals remaining in the aqueous phase much longer than other halogens. In the nitrate ore fields of the Atacama Desert of northern Chile, iodine is highly enriched forming one of the largest reservoirs of iodine in the Earth’s co ...
PowerPoint Presentation - GNSS use for Earth Sciences
... • Examples of deformation studies with the Global Positioning System (GPS) • Examples of atmospheric delay studies • Contributions to the global applications ...
... • Examples of deformation studies with the Global Positioning System (GPS) • Examples of atmospheric delay studies • Contributions to the global applications ...
Unit 1 - Delmar
... They have learned that spreading ridges form where rising magma — molten rock from Earth’s mantle — breaks the ocean floor along long cracks, or fissures. When a fissure opens, magma squeezes up through it and solidifies, adding to the rock on both sides of the ridge and filling in the crack. Genera ...
... They have learned that spreading ridges form where rising magma — molten rock from Earth’s mantle — breaks the ocean floor along long cracks, or fissures. When a fissure opens, magma squeezes up through it and solidifies, adding to the rock on both sides of the ridge and filling in the crack. Genera ...
Earth Science - Connections Academy
... compare and contrast weathering and erosion, explore plate tectonics with relation to earthquakes and volcanoes, and investigate the formation of mountains. Units: Introduction to Earth Science Earth Science is a vast branch of science that covers many subject areas, including geology, oceanography, ...
... compare and contrast weathering and erosion, explore plate tectonics with relation to earthquakes and volcanoes, and investigate the formation of mountains. Units: Introduction to Earth Science Earth Science is a vast branch of science that covers many subject areas, including geology, oceanography, ...
Dynamic planet - MentorHigh.com
... accumulates near the base of the plate, where it melts the crust above. The melted crust, in turn, rises closer to the surface to form large reservoirs of potentially explosive rhyolite magma. Catastrophic eruptions have partly emptied some of these reservoirs, causing their roofs to collapse. The r ...
... accumulates near the base of the plate, where it melts the crust above. The melted crust, in turn, rises closer to the surface to form large reservoirs of potentially explosive rhyolite magma. Catastrophic eruptions have partly emptied some of these reservoirs, causing their roofs to collapse. The r ...
Geology of the Hawaiian Islands
... shape or size that is not recovered when the stress is removed • Occurs by the slippage of atoms or small groups of atoms past each other in the deforming material, without loss of cohesion ...
... shape or size that is not recovered when the stress is removed • Occurs by the slippage of atoms or small groups of atoms past each other in the deforming material, without loss of cohesion ...
SwissRe - Department of Earth and Planetary Sciences
... For Large Earthquakes, Seismic Waves Circle the Earth for Months to Years, Making it Ring Like a Gong. ...
... For Large Earthquakes, Seismic Waves Circle the Earth for Months to Years, Making it Ring Like a Gong. ...
Directed Reading A - sgeneva
... 16. One reason that weathering is important is because it breaks rock into fragments or _____________ from which sedimentary rocks are made. 17. The process by which sediment is removed from its source is called ____________________ 18. During __________, sediment is deposited in bodies of water and ...
... 16. One reason that weathering is important is because it breaks rock into fragments or _____________ from which sedimentary rocks are made. 17. The process by which sediment is removed from its source is called ____________________ 18. During __________, sediment is deposited in bodies of water and ...
Relative Age of Rocks and
... When the top layer of sedimentary rock is eroded and then new sediment is deposited where the layer used to be, there is a gap in what geologists can learn. The rock can be folded by converging plates or molten magma can shift the layers so they are angled or wavy. ...
... When the top layer of sedimentary rock is eroded and then new sediment is deposited where the layer used to be, there is a gap in what geologists can learn. The rock can be folded by converging plates or molten magma can shift the layers so they are angled or wavy. ...
What Causes EARTHQUAKES?
... ___________________ that is caused by the slip. ____________________________, or other geologic processes, may cause stress changes in the earth that can also result in an earthquake. ______________________ and __________________ (tension, compression, and shearing) along faults can build up as bloc ...
... ___________________ that is caused by the slip. ____________________________, or other geologic processes, may cause stress changes in the earth that can also result in an earthquake. ______________________ and __________________ (tension, compression, and shearing) along faults can build up as bloc ...
Understanding Our Environment
... Let’s “rock around the clock” by looking at yet ANOTHER way to see the relationship between geologic time and important events in the evolution of organisms on earth. Go to http://earthnetgeonet.ca/teachers/PlanetEarthMar04.pdf PDF page 64 (article page 60) ...
... Let’s “rock around the clock” by looking at yet ANOTHER way to see the relationship between geologic time and important events in the evolution of organisms on earth. Go to http://earthnetgeonet.ca/teachers/PlanetEarthMar04.pdf PDF page 64 (article page 60) ...
Unit Five Test Review
... 11. Explain our “best-guess” on how the Earth’s magnetic field is generated. 12. What are two uncertainties with our “best-guess” magnetic field explanations? ...
... 11. Explain our “best-guess” on how the Earth’s magnetic field is generated. 12. What are two uncertainties with our “best-guess” magnetic field explanations? ...
Plate Tectonics
... continental landmasses (ranges from 15 to 80 km thick). Ocean crust is made of a more dense material than continental crust. ...
... continental landmasses (ranges from 15 to 80 km thick). Ocean crust is made of a more dense material than continental crust. ...
Directed Reading A - Holicong9thGradeScience
... 10. Magma in the Earth’s crust that has risen to the surface and cools and solidifies 11. Rock that is forced downward & is exposed to heat & pressure 12. Rocks that are partially or completely melted 13. Igneous rock on Earth’s surface that is weathered and wears away 14. Sediment that washes down ...
... 10. Magma in the Earth’s crust that has risen to the surface and cools and solidifies 11. Rock that is forced downward & is exposed to heat & pressure 12. Rocks that are partially or completely melted 13. Igneous rock on Earth’s surface that is weathered and wears away 14. Sediment that washes down ...
Rocks and Their Origins
... Texture- size, shape and arrangement of a rocks crystals. • Igneous rocks are classified based on their texture. • Coarse texture- igneous rocks with large crystals. • Fine Grain texture- rocks that have small crystals. • Glassy- rocks that cool so fast they have no specific ...
... Texture- size, shape and arrangement of a rocks crystals. • Igneous rocks are classified based on their texture. • Coarse texture- igneous rocks with large crystals. • Fine Grain texture- rocks that have small crystals. • Glassy- rocks that cool so fast they have no specific ...
Ch._5_IGNEOUS_ROCKS
... • Composed of roughly equal amounts of dark- and lightcolored minerals so they tend to have a “salt and pepper” color. Little to no quartz, no olivine, little pyroxene present. Amphibole, plagioclase feldspar, and biotite are common. Quartz and some alkali feldspar may be present too, in lesser amou ...
... • Composed of roughly equal amounts of dark- and lightcolored minerals so they tend to have a “salt and pepper” color. Little to no quartz, no olivine, little pyroxene present. Amphibole, plagioclase feldspar, and biotite are common. Quartz and some alkali feldspar may be present too, in lesser amou ...
Unit 4.2 Test Review Layer Composition Thickness State of Matter
... 6. We call underwater mountain chains that run through oceanic crust __mid-ocean ridges________. 7. In sea floor spreading, ___new_____ crust forms at mid-ocean ridges while _______older_______ crust is pushed away from the ridge. ...
... 6. We call underwater mountain chains that run through oceanic crust __mid-ocean ridges________. 7. In sea floor spreading, ___new_____ crust forms at mid-ocean ridges while _______older_______ crust is pushed away from the ridge. ...
Age of the Earth
The age of the Earth is 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age is based on evidence from radiometric age dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.Following the development of radiometric age dating in the early 20th century, measurements of lead in uranium-rich minerals showed that some were in excess of a billion years old.The oldest such minerals analyzed to date—small crystals of zircon from the Jack Hills of Western Australia—are at least 4.404 billion years old. Comparing the mass and luminosity of the Sun to those of other stars, it appears that the Solar System cannot be much older than those rocks. Calcium-aluminium-rich inclusions – the oldest known solid constituents within meteorites that are formed within the Solar System – are 4.567 billion years old, giving an age for the solar system and an upper limit for the age of Earth.It is hypothesised that the accretion of Earth began soon after the formation of the calcium-aluminium-rich inclusions and the meteorites. Because the exact amount of time this accretion process took is not yet known, and the predictions from different accretion models range from a few millions up to about 100 million years, the exact age of Earth is difficult to determine. It is also difficult to determine the exact age of the oldest rocks on Earth, exposed at the surface, as they are aggregates of minerals of possibly different ages.