Salahaddin University College of Science Geology Department
... 39) You finda rock that hasa fine-grained composition. Looking at it carefully, you see what appear to be clam shell fragments in it.This rock is most likely: A. Intrusive igneous B. Extrusive igneous C. Sedimentary D. Metamorphic 40) For magma to become lava, it has to: A. Come to the Earth’s surfa ...
... 39) You finda rock that hasa fine-grained composition. Looking at it carefully, you see what appear to be clam shell fragments in it.This rock is most likely: A. Intrusive igneous B. Extrusive igneous C. Sedimentary D. Metamorphic 40) For magma to become lava, it has to: A. Come to the Earth’s surfa ...
Shake, Rattle, Richter!
... Richter scale in 1935 based on seismogram measurements. This scale is used by seismologists and geologists to help determine the magnitude of energy released by an earthquake. Dr. Richter worked at the California Institute of Technology. The Richter scale measures the amplitude of seismic waves in w ...
... Richter scale in 1935 based on seismogram measurements. This scale is used by seismologists and geologists to help determine the magnitude of energy released by an earthquake. Dr. Richter worked at the California Institute of Technology. The Richter scale measures the amplitude of seismic waves in w ...
Earthquake Notes
... 4.____________________ – strike-slip faults combined with a normal or reverse fault. One plate moves sideways, and one plate moves downward. A ______________ can be a few inches or hundreds of miles long. They can be horizontal, _____________, or incline. Some are seen at the Earth’s ____________ wh ...
... 4.____________________ – strike-slip faults combined with a normal or reverse fault. One plate moves sideways, and one plate moves downward. A ______________ can be a few inches or hundreds of miles long. They can be horizontal, _____________, or incline. Some are seen at the Earth’s ____________ wh ...
Jeopardy
... January 3rd. On what day could a lunar eclipse occur during January? A. Wednesday the 3rd B. Thursday the 11th C. Thursday the 18th D. Thursday the 25th ...
... January 3rd. On what day could a lunar eclipse occur during January? A. Wednesday the 3rd B. Thursday the 11th C. Thursday the 18th D. Thursday the 25th ...
Portable Generators- to earth or not to earth
... isolated secondary winding type. From a lay man’s perspective, it is hard to distinguish between these two types of generators. The confusion does not just stop there, the use of standard RCD power boards have been banned in some industry sectors, as they create a possible dangerous situation with i ...
... isolated secondary winding type. From a lay man’s perspective, it is hard to distinguish between these two types of generators. The confusion does not just stop there, the use of standard RCD power boards have been banned in some industry sectors, as they create a possible dangerous situation with i ...
convergent boundary
... currents created by heat trapped beneath the Earth's surface. Holmes hypothesized that convection currents welled up toward the surface and then drug continents across the surface. ...
... currents created by heat trapped beneath the Earth's surface. Holmes hypothesized that convection currents welled up toward the surface and then drug continents across the surface. ...
Table of Contents
... and Associated Companies throughout the world Visit us on the World Wide Web at: www.pearsonglobaleditions.com © Pearson Education Limited 2015 The rights of Frederick K. Lutgens and Edward J. Tarbuck to be identified as the authors of this work have been asserted by them in accordance with the Copy ...
... and Associated Companies throughout the world Visit us on the World Wide Web at: www.pearsonglobaleditions.com © Pearson Education Limited 2015 The rights of Frederick K. Lutgens and Edward J. Tarbuck to be identified as the authors of this work have been asserted by them in accordance with the Copy ...
PSRD: Tungsten Isotopes, Formation of the Moon, and Lopsided
... planetary bodies throughout the Solar System, as shown by the large difference in µ 182 W between chondrites and the Earth in the diagram above. If two random planetary bodies hit each other, they ought to vary in isotopic composition, implying that the Moon and Earth would have different isotopic c ...
... planetary bodies throughout the Solar System, as shown by the large difference in µ 182 W between chondrites and the Earth in the diagram above. If two random planetary bodies hit each other, they ought to vary in isotopic composition, implying that the Moon and Earth would have different isotopic c ...
ps 2-7-08 - elyceum-beta
... • A plate is made up of a section of the earth’s crust and lithosphere underneath it • Lithosphere is brittle, so it breaks into pieces under enough force ...
... • A plate is made up of a section of the earth’s crust and lithosphere underneath it • Lithosphere is brittle, so it breaks into pieces under enough force ...
Compositional Stratification in the Deep Mantle
... mixing rates and dynamic topography with viscosities suggests that mixing was less efficient and the layer more stable in the past (37), so a compositionally distinct layer with the intrinsic density contrast that we propose should be stable over the age of Earth. To quantify the effects of intrinsi ...
... mixing rates and dynamic topography with viscosities suggests that mixing was less efficient and the layer more stable in the past (37), so a compositionally distinct layer with the intrinsic density contrast that we propose should be stable over the age of Earth. To quantify the effects of intrinsi ...
Plate Tectonics Section 1 Sea
... • In the late 1950s, geologist Harry Hess proposed that the valley at the center of a mid-ocean ridge was a crack, or rift, in Earth’s crust. • As the ocean floor moves away from the ridge, molten rock, or magma, rises to fill the crack. • sea-floor spreading the process by which new oceanic lithosp ...
... • In the late 1950s, geologist Harry Hess proposed that the valley at the center of a mid-ocean ridge was a crack, or rift, in Earth’s crust. • As the ocean floor moves away from the ridge, molten rock, or magma, rises to fill the crack. • sea-floor spreading the process by which new oceanic lithosp ...
Notes-Earthquakes
... lithosphere is created by seafloor spreading. - In rifts, no crust or lithosphere is produced. If rifting continues, eventually a mid-ocean ridge may form, marking a divergent boundary between two tectonic plates. - There are three main groups of theories that have been proposed to explain the spati ...
... lithosphere is created by seafloor spreading. - In rifts, no crust or lithosphere is produced. If rifting continues, eventually a mid-ocean ridge may form, marking a divergent boundary between two tectonic plates. - There are three main groups of theories that have been proposed to explain the spati ...
History Helps When It Comes To Plate Tectonics
... energy. Energy can be conserved. Earth’s surface has specific characteristics. Heat results when materials rub against each other. Gravitational force and magnetism also are studied. Grades 6-7: Rocks have characteristics that are related to the environment in which they form. Thermal energy is a me ...
... energy. Energy can be conserved. Earth’s surface has specific characteristics. Heat results when materials rub against each other. Gravitational force and magnetism also are studied. Grades 6-7: Rocks have characteristics that are related to the environment in which they form. Thermal energy is a me ...
Earthquakes
... Ground fissures caused by liquefaction near the mouth of the Pajaro River in California during the 1989 Loma Prieta earthquake. When the surface of the ground oscillates, wet, sandy, and muddy soils can flow like a liquid. This is liquefaction. You can liquefy wet sand at the beach by pumping it up ...
... Ground fissures caused by liquefaction near the mouth of the Pajaro River in California during the 1989 Loma Prieta earthquake. When the surface of the ground oscillates, wet, sandy, and muddy soils can flow like a liquid. This is liquefaction. You can liquefy wet sand at the beach by pumping it up ...
Why and Where Earthquakes Occur
... Earthquakes Occur Although our Earth feels solid as we walk along its surface, it is really only partly so. The Earth is divided into three main layers that can be visualized by using a hard-boiled egg as a model. There is a hard outer surface, a softer middle layer, and a central core. The outermos ...
... Earthquakes Occur Although our Earth feels solid as we walk along its surface, it is really only partly so. The Earth is divided into three main layers that can be visualized by using a hard-boiled egg as a model. There is a hard outer surface, a softer middle layer, and a central core. The outermos ...
plate tectonics
... Driven by internal heat resulting from radioactivity Analogy of convection in a pot of soup Estimates of temperature made from analysis of Earthquake waves Exact details unknown because it is difficult to collect data from the mantle ...
... Driven by internal heat resulting from radioactivity Analogy of convection in a pot of soup Estimates of temperature made from analysis of Earthquake waves Exact details unknown because it is difficult to collect data from the mantle ...
Basic Physical Geography
... becomes mildly acidic, or mildly alkaline, depending on the chemicals produced by the decomposing vegetation. These acidic or alkaline solutions then contribute to the process of chemical weathering. Erosion can occur once rock material is reduced in size enough that the force of gravity, moving wat ...
... becomes mildly acidic, or mildly alkaline, depending on the chemicals produced by the decomposing vegetation. These acidic or alkaline solutions then contribute to the process of chemical weathering. Erosion can occur once rock material is reduced in size enough that the force of gravity, moving wat ...
plate tectonics
... At a transform fault boundary, plates grind past each other without destroying the lithosphere. Transform faults • Most join two segments of a mid-ocean ridge. • At the time of formation, they roughly parallel the direction of plate movement. • They aid the movement of oceanic crustal material. ...
... At a transform fault boundary, plates grind past each other without destroying the lithosphere. Transform faults • Most join two segments of a mid-ocean ridge. • At the time of formation, they roughly parallel the direction of plate movement. • They aid the movement of oceanic crustal material. ...
File - Meissnerscience.com
... The only force that is acting on a satellite is the force of gravity attracting the satellite to Earth. This force of attraction, along with the perpendicular velocity of the satellite, maintains the satellite’s position above Earth’s surface. The satellite is falling toward Earth, but the speed of ...
... The only force that is acting on a satellite is the force of gravity attracting the satellite to Earth. This force of attraction, along with the perpendicular velocity of the satellite, maintains the satellite’s position above Earth’s surface. The satellite is falling toward Earth, but the speed of ...
Volcanoes and Igneous Activity Earth
... At a transform fault boundary, plates grind past each other without destroying the lithosphere. Transform faults • Most join two segments of a mid-ocean ridge. • At the time of formation, they roughly parallel the direction of plate movement. • They aid the movement of oceanic crustal material. ...
... At a transform fault boundary, plates grind past each other without destroying the lithosphere. Transform faults • Most join two segments of a mid-ocean ridge. • At the time of formation, they roughly parallel the direction of plate movement. • They aid the movement of oceanic crustal material. ...
Geophysics
Geophysics /dʒiːoʊfɪzɪks/ is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis. The term geophysics sometimes refers only to the geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. However, modern geophysics organizations use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial relations; and analogous problems associated with the Moon and other planets.Although geophysics was only recognized as a separate discipline in the 19th century, its origins go back to ancient times. The first magnetic compasses were made from lodestones, while more modern magnetic compasses played an important role in the history of navigation. The first seismic instrument was built in 132 BC. Isaac Newton applied his theory of mechanics to the tides and the precession of the equinox; and instruments were developed to measure the Earth's shape, density and gravity field, as well as the components of the water cycle. In the 20th century, geophysical methods were developed for remote exploration of the solid Earth and the ocean, and geophysics played an essential role in the development of the theory of plate tectonics.Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection. Geophysical survey data are used to analyze potential petroleum reservoirs and mineral deposits, locate groundwater, find archaeological relics, determine the thickness of glaciers and soils, and assess sites for environmental remediation.