
ROCKS and how to identify them
... SEDIMENTARY ROCKS are composed of particles derived from pre-existing rocks or by the crystallization of minerals that were held in solutions. A general characteristic of this group is the layering or stratification, as seen in the outcrop. Those sedimentary rocks that are composed of particles of p ...
... SEDIMENTARY ROCKS are composed of particles derived from pre-existing rocks or by the crystallization of minerals that were held in solutions. A general characteristic of this group is the layering or stratification, as seen in the outcrop. Those sedimentary rocks that are composed of particles of p ...
Judgement Statement
... travel at 7 m s –1 . S waves are the secondary waves and travel at 4 m s–1. Because the waves travel at different speeds, they will arrive at the seismograph at different times. It is this difference in arrival time that is used to work out how far away the epicentre was (using formula (v = d / t). ...
... travel at 7 m s –1 . S waves are the secondary waves and travel at 4 m s–1. Because the waves travel at different speeds, they will arrive at the seismograph at different times. It is this difference in arrival time that is used to work out how far away the epicentre was (using formula (v = d / t). ...
Slide 1
... relatively little volcanism. The continental crust may also be cracked in pieces and shoved aside. Both of these responses are seen to perfection in the great foldbelt that stretches from Turkey to China. There the African, Arabian and Indian plates are moving northward into the Eurasian plate, resp ...
... relatively little volcanism. The continental crust may also be cracked in pieces and shoved aside. Both of these responses are seen to perfection in the great foldbelt that stretches from Turkey to China. There the African, Arabian and Indian plates are moving northward into the Eurasian plate, resp ...
Schedule
... travel at 7 m s –1 . S waves are the secondary waves and travel at 4 m s–1. Because the waves travel at different speeds, they will arrive at the seismograph at different times. It is this difference in arrival time that is used to work out how far away the epicentre was (using formula (v = d / t). ...
... travel at 7 m s –1 . S waves are the secondary waves and travel at 4 m s–1. Because the waves travel at different speeds, they will arrive at the seismograph at different times. It is this difference in arrival time that is used to work out how far away the epicentre was (using formula (v = d / t). ...
Exercise 3 - Earthquake Hazards
... the strength of the horizontal ground motion (relative to gravity) that has a 10% chance of occurring over a 50-year period. For example, we can see that in the Los Angeles area, there is a 10% probability in next 50 years of an earthquake with a lateral ground motion of more than 0.32 times the for ...
... the strength of the horizontal ground motion (relative to gravity) that has a 10% chance of occurring over a 50-year period. For example, we can see that in the Los Angeles area, there is a 10% probability in next 50 years of an earthquake with a lateral ground motion of more than 0.32 times the for ...
Plate Tectonics Review Guide new lithosphere
... leading edge of the plate sinks it pulls the rest of the plate along behind it. ...
... leading edge of the plate sinks it pulls the rest of the plate along behind it. ...
UExcel® Official Content Guide for Earth Science
... The UExcel Earth Science examination is based on material typically taught in a one-semester lowerlevel course in geology, meteorology, and oceanography. The content of the examination corresponds to introductory course offerings such as Earth Science, Physical Geology, Geoscience, Environmental Geo ...
... The UExcel Earth Science examination is based on material typically taught in a one-semester lowerlevel course in geology, meteorology, and oceanography. The content of the examination corresponds to introductory course offerings such as Earth Science, Physical Geology, Geoscience, Environmental Geo ...
What are shield volcanoes?
... Volcanoes occur when the Earths plates pull apart causing magma to rise to the surface. Volcanoes can also occur over hotspots and where one plate dives beneath another, this is called subduction. ...
... Volcanoes occur when the Earths plates pull apart causing magma to rise to the surface. Volcanoes can also occur over hotspots and where one plate dives beneath another, this is called subduction. ...
Ocean Upper Mantle Initiative: The oceanic lithosphere and its
... convection and does it exist at all? How efficient is the lithospheric reheating associated with sub-lithospheric small-scale convection, and may it cause lithospheric delamination (e.g. Lenardic et al., 2003) and regional uplift? Is edge-driven convection an alternative to plumes for explaining ho ...
... convection and does it exist at all? How efficient is the lithospheric reheating associated with sub-lithospheric small-scale convection, and may it cause lithospheric delamination (e.g. Lenardic et al., 2003) and regional uplift? Is edge-driven convection an alternative to plumes for explaining ho ...
Volcanoes Guided Reading Key
... 1. In what ways are volcanoes a constructive force? they can add to land by adding new rock and creating islands 2. Why do so many of Earth’s volcanoes occur along plate boundaries? Huge pieces of crust diverge or converge and allows magma to reach surface. 3. Explain how hot spots create islands. M ...
... 1. In what ways are volcanoes a constructive force? they can add to land by adding new rock and creating islands 2. Why do so many of Earth’s volcanoes occur along plate boundaries? Huge pieces of crust diverge or converge and allows magma to reach surface. 3. Explain how hot spots create islands. M ...
Milky Way Plate Tectonics
... So hot that even pressure can’t force it into a solid, This layer is liquid. ...
... So hot that even pressure can’t force it into a solid, This layer is liquid. ...
Name - Hagen. C
... 80. What two factors determine the salinity of ocean water – describe how they relate to high and low salinity 81. Define thermocline 82. Describe the bottom of the ocean floor 83. What force/energy is key in the development of surface currents? ____________________________ 84. Describe the thermocl ...
... 80. What two factors determine the salinity of ocean water – describe how they relate to high and low salinity 81. Define thermocline 82. Describe the bottom of the ocean floor 83. What force/energy is key in the development of surface currents? ____________________________ 84. Describe the thermocl ...
Grade 6 Scavenger Hunt - Fernbank Museum of Natural History
... a. Compare and contrast the Earth’s crust, mantle, and core including temperature, density, and composition. ...
... a. Compare and contrast the Earth’s crust, mantle, and core including temperature, density, and composition. ...
The Geologic Time Scale
... sedimentary rocks are deposited in horizontal layers B. a gap in the rock record C. principle which states that oldest rocks are at the bottom and that each successive layer is younger D. matching of outcrops from ...
... sedimentary rocks are deposited in horizontal layers B. a gap in the rock record C. principle which states that oldest rocks are at the bottom and that each successive layer is younger D. matching of outcrops from ...
Unit 1A Assessment Review
... -convergent boundary -volcanism -hotspots -Alfred Wegener -continental drift -plate tectonics -convection - ocean trench Reflection Questions: Use chapter 1 A to answer the following questions. 1. In what ways does the lithosphere differ from the asthenosphere? 2. How does the density of the materia ...
... -convergent boundary -volcanism -hotspots -Alfred Wegener -continental drift -plate tectonics -convection - ocean trench Reflection Questions: Use chapter 1 A to answer the following questions. 1. In what ways does the lithosphere differ from the asthenosphere? 2. How does the density of the materia ...
Presenting
... 42% of all the aluminum produced worldwide 31% of all the petroleum 29% of all the phosphate 27% of all the copper Although the U.S. has 5% of the world's population, 27% of the nitrogen we use an average of 30% of all resources 25% of the zinc ...
... 42% of all the aluminum produced worldwide 31% of all the petroleum 29% of all the phosphate 27% of all the copper Although the U.S. has 5% of the world's population, 27% of the nitrogen we use an average of 30% of all resources 25% of the zinc ...
Serpentine Volcano
... habitats. This information is essential to understanding and managing deep-water resources associated with Earth’s deepest oceanic trench. The MTMNM is part of a larger region known as the Submarine Ring of Fire, named for the numerous volcanoes that result from the movements of tectonic plates in t ...
... habitats. This information is essential to understanding and managing deep-water resources associated with Earth’s deepest oceanic trench. The MTMNM is part of a larger region known as the Submarine Ring of Fire, named for the numerous volcanoes that result from the movements of tectonic plates in t ...
1-Movement of Crustal Plates - Fellows
... The difference between our crust and a jigsaw puzzle is the ...
... The difference between our crust and a jigsaw puzzle is the ...
Plate Movement Types
... A mantle plume rises to the surface, creating an area of volcanism. The magma rises and cools in the ocean to form islands like the Hawaiian chain of islands. As the islands are created they move with the tectonic plate, leaving space for a new island. ...
... A mantle plume rises to the surface, creating an area of volcanism. The magma rises and cools in the ocean to form islands like the Hawaiian chain of islands. As the islands are created they move with the tectonic plate, leaving space for a new island. ...
WEL COME TO YOU
... elastic or gravitational equilibrium of the rocks at or beneath the earth the surface. It forms of energy of wave motion transmitted through the surface layer of the earth in widening circles from a point of sudden energy release. ...
... elastic or gravitational equilibrium of the rocks at or beneath the earth the surface. It forms of energy of wave motion transmitted through the surface layer of the earth in widening circles from a point of sudden energy release. ...
1 IDS 102 Plate Tectonics Questions Part I: Observations
... Plate boundaries are divergent, oceanic-continental convergent, oceanic-oceanic convergent, continental-continental convergent, and transform. From our discussions of the plate boundary characteristics in class and your observations in Part I of this handout, label the boundaries of the plates shown ...
... Plate boundaries are divergent, oceanic-continental convergent, oceanic-oceanic convergent, continental-continental convergent, and transform. From our discussions of the plate boundary characteristics in class and your observations in Part I of this handout, label the boundaries of the plates shown ...
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.