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Suggestions for obtaining UC "d" lab status - H
Suggestions for obtaining UC "d" lab status - H

... Physics applications: flow vs. basal slip, energy conversion, Milankovitch Cycle, albedo Biology applications: tree ring data Methods used to explore the seafloor and geologic units beneath the seafloor, geological features and processes associated with ocean topography, including: oceanic ridges, d ...
History of Lake District Geology
History of Lake District Geology

Geography - English Language Support Programme
Geography - English Language Support Programme

... Fill in the blanks in these sentences. Use words from the Word Box below. The outer crust consists of solid ____, mostly basalt and granite. It may be 70 km in thickness under the continents and as thin as 3 km under the oceans. Mantle The mantle rock is so hot (up to 4,000°C) that it is in a plasti ...
Ch 17 Plate Tectonics
Ch 17 Plate Tectonics

... i. Basalt contains iron minerals which get “stuck” pointing towards Earth’s _______________________ as it cools and hardens ii. The iron minerals show a pattern of ____________________________which indicate a change in Earth’s magnetic field 6. Seafloor spreading theory: _______ ocean crust is forme ...
Geography 12
Geography 12

... Where the rock surfaces are rough, the plates get stuck on each other. The pressure continues to build up eventually to be released as an earthquake. The longer the pressure builds, the stronger and more destructive the earthquake. ...
Sample
Sample

... matter against chemical gradients, i.e., locally decreasing entropy by creating long-term chemical disequilibrium, makes life’s role unique in the Earth system where entropy increases via inorganic processes as chemical equilibrium is established. ...
chap2 - LaffertysBiologyClass
chap2 - LaffertysBiologyClass

... Structure of the Earth • Heavier materials settled deep in the Earth • Lighter components formed a thin crust • Eventually, the Earth’s oceans and atmosphere began to form • Earth’s location relative to the sun allows for water to stay liquid – an essential element to sustain life ...
What is a Rock?
What is a Rock?

... Schist: dominated by platy or needle-like minerals that form shiny layers Gneiss: under pressure the minerals in granite recrystallize to form bands of light and dark minerals Marble: Limestone recrystallizes into marble – a denser and more crystalline form of calcite Quartzite: Sandstone changes in ...
KEY
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... The Earth is not as solid as it seems. Its surface is made up of about 13 major “tectonic” plates that float on the semi-molten rock beneath. Where these plates meet, they grind together, creating earthquakes. When the earthquake is beneath an ocean it can cause a tsunami. (17) _____________________ ...
Plate Tectonics
Plate Tectonics

... Earth’s top layers • Top layer is called the lithoshere, which contains the crust and the uppermost part of the rigid mantle. • Under the lithosphere is the asthenosphere. • Asthenosphere consists of of a solid but low viscosity which can make it flow like liquid. • Below the asthenosphere is the d ...
Geothermal Energy - The NEED Project
Geothermal Energy - The NEED Project

... Thermal-heat— GEOTHERMAL— Earth-heat! Hold arms in a circle in front of you during “Geo-Earth.” Cross arms and hug yourself for “Thermal-heat.” Shout “GEOTHERMAL,” then repeat the motions quickly for “Earth-heat.” ...
high fidelity surface charging and magnetic noise analysis of the
high fidelity surface charging and magnetic noise analysis of the

Geology Lab: "Edible Tectonics"
Geology Lab: "Edible Tectonics"

... Convection currents in the mantle form and transfer heat as rock slowly rises toward the top of the mantle. The rock is still hard, but it flows very slowly like a fluid. As the rock rises, it cools and sinks back down into the mantle. As with all convection currents, convection in Earth’s mantle is ...
OCN100--Study Guide
OCN100--Study Guide

... Draw a typical cross section of an abyssal plain as it might show up in a seismic section (Fig. 3.12). How does this illustrate the relationship between abyssal hills and abyssal ...
Introduction to Plate Tectonics
Introduction to Plate Tectonics

... • So the lithosphere is actually made of several massive (huge) chunks called tectonic plates ...
Geology - Regional School District 13
Geology - Regional School District 13

... Know methods used to observe geologic time, such as observing rock sequences and using fossils to correlate the sequences at various locations. Be able to use the known decay rates of radioactive isotopes present in rock to measure the time since the rock was formed. Distinguish among eons, eras, pe ...
TB Chapter 13 - Discover Earth Science
TB Chapter 13 - Discover Earth Science

... 4) Magnetic polarity reversals are recorded in ocean floor rocks as the sea floor spreads apart • During certain periods in Earth’s Earth s history, the magnetic fields have reversed • Iron in the igneous g rocks on the ocean floor would shift before the magma cooled and ...
3 DYNAMIC SURFACE OF THE EARTH MODULE - 2
3 DYNAMIC SURFACE OF THE EARTH MODULE - 2

... Earthquakes and volcanoes are concentrated along a few narrow belts. The type and density of rocks of the crust are variable. The surface features are dynamic in character. This dynamism is due to two forces — endogenetic and exogenetic. Endogenetic forces are those which are caused from below the s ...
Seismic waves - opotikicollegeearthscience
Seismic waves - opotikicollegeearthscience

... • Surface waves are similar in nature to water waves and travel just under the Earth’s surface. They are typically generated when the source of the earthquake is close to the Earth’s surface. Although surface waves travel more slowly than S-waves, they can be much larger in amplitude and can be the ...
Chapter 33 Plate Tectonics
Chapter 33 Plate Tectonics

... • 1950’s had detailed mapping of the ocean floor • Figured out – Some really deep parts are next to the continents and some shallower parts are out in the middle due to the mountains under the water – Why? ...
Lecture 18.
Lecture 18.

... cooler, denser crust slips beneath less dense crust; strong quakes, deep trench forms in arc shape; subducted plate heats in upper mantle; magma rises to form curving chains of volcanic islands. Deep marine trenches are typically associated with subduction zones, and the basins that develop along th ...
EGU2017-3875
EGU2017-3875

... Zhangzhou basin located at the Southeast margins of Asian plate is one of the largest geothermal fields in Fujian province, Southeast China. High-temperature natural springs and granite rocks are widely distributed in this region and the causes of geothermal are speculated to be involved the large n ...
Unit 1 Day 5.
Unit 1 Day 5.

... rigid, solid rock and runs to about 100 kilometers below the planet's surface. Below that is the asthenosphere, which is hot enough that its rocks are more flexible and easily shaped than those above it. The lithosphere is divided into roughly two dozen major and minor plates, and these plates move ...
Theory of plate tectonics
Theory of plate tectonics

... Information to understand: • The evidence used by Wegener to describe the continental drift hypothesis. • The evidence associated with technology that was used to collect information about ocean ...
Theory of plate tectonics
Theory of plate tectonics

... Information to understand: • The evidence used by Wegener to describe the continental drift hypothesis. • The evidence associated with technology that was used to collect information about ocean ...
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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.
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