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Tapping Preconception
Tapping Preconception

... • What does the ocean floor between North America and Europe look like? • Describe what is under the continents. • Describe what happens to the ocean floor when the continents move during continental drift. • What allows the continents to move? • Where does the energy needed to move the continents c ...
Volcanoesbackground_format
Volcanoesbackground_format

... by the downward-moving (subducting) plate as it becomes dehydrated during heating, this lowers the melting temperature of the overlying mantle, and magma is created. This magma slowly moves towards the surface, and where it reaches the surface it forms a volcano. Areas where two tectonic plates slid ...
2.4c
2.4c

... Candidates should know that plotting the epicentres of major earthquakes and the sites of active volcanoes indicates the location of plate boundaries – regions where the edges of different plates are in contact. Plates move apart at a mid ocean ridge; this is called a constructive plate boundary bec ...
Year 8 - Chesham Preparatory School
Year 8 - Chesham Preparatory School

EQT Study Guide
EQT Study Guide

... 1. The ___________________ is the layer of the Earth that is really liquid but acts like solid iron and nickel because of intense heat and pressure. 2. Lithosphere plates move along convection currents due to density changes in the ______________________. 3. Tectonic plates are made up of the area c ...
Application cases of the offer Magnetic inversion
Application cases of the offer Magnetic inversion

... The value for density layers (in g/cm3), the following: water (1.03), sediment (2.1), the oceanic crust (2.8-3.0) and mantle (3.1-3.3). Isostatic principle is applied in the first stage of modeling. It is characterized the uniform pressure geological unit at the depth of 65 km for different combinat ...
PDF (Chapter 2. Comparative Planetology)
PDF (Chapter 2. Comparative Planetology)

... SNC meteorites have trapped rare-gas and nitrogen contents that differ from other meteorites but closely match those in the martian atmosphere. If SNC meteorites come from Mars, then a relatively volatile-rich planet is implied, and the atmospheric evidence for a low volatile content for Mars would ...
Seafloor Spreading - explained how continents could move
Seafloor Spreading - explained how continents could move

...   pangea  pangea-r-anim ...
Dynamic Planet Test 1. Label the plates on the map: (1 point each) A
Dynamic Planet Test 1. Label the plates on the map: (1 point each) A

... 43. About how many times more energy would be released by a 5.0 earthquake than a 4.0 earthquake measured using the richter scale? a. 2 times b. 10 times c. 30 times d. 50 times 44. An earthquake that causes most people to feel it and some indoor objects to shake or fall but not buildings to be dama ...
test - Scioly.org
test - Scioly.org

... 45.    Clarence   Edward   Dutton,   American   geologist   and   pioneer   seismologist   who   developed   and   named   the  principle   of___________.   According   to   this   principle,   the   level   of   the   Earth’s   crust   is   determined   by   its   density;  lighter   material   ris ...
Dynamic Planet Test
Dynamic Planet Test

... 43. About how many times more energy would be released by a 5.0 earthquake than a 4.0 earthquake measured using the richter scale? a. 2 times b. 10 times c. 30 times d. 50 times 44. An earthquake that causes most people to feel it and some indoor objects to shake or fall but not buildings to be dama ...
Introduction to Earth System
Introduction to Earth System

... The outermost layer (LITHOSPHERE) is divided in a small number of “rigid” plates in relative motion one respect to the other and that are moving on a weak ASTHENOSPHERE Basic Assumptions:  The astenosphere viscosity is low enough to allow on long time scale for viscous flow;  The generation of new ...
Earthquakes - NewPath Learning
Earthquakes - NewPath Learning

Gravity Summary - uni
Gravity Summary - uni

... The outermost layer (LITHOSPHERE) is divided in a small number of “rigid” plates in relative motion one respect to the other and that are moving on a weak ASTHENOSPHERE Basic Assumptions: The astenosphere viscosity is low enough to allow on long time scale for viscous flow; The generation of new p ...
The Effect of Volcanic Eruption on Climate and Global Warming
The Effect of Volcanic Eruption on Climate and Global Warming

... It is generally believed that large volcanic eruptions have a strong correlation with global warming. In this study, we tested the hypothesis that the ash from large volcanic eruptions has a direct cause on climate change. In particular, by studying the eruption of Huaynaputina, (a famous volcano in ...
Our Ever Changing Earth
Our Ever Changing Earth

... Purpose: Our earth is constantly changing. The earth is not a single, solid sheet. It is made up of many continually moving plates that are deep within the earth. These plates float on a layer below the earth’s solid crust that is soft and moveable. It provides a lubricating layer over which the cru ...
Student Google Slides Presentation
Student Google Slides Presentation

... The Ring of Fire is a major area in the Pacific Ocean, where a large number of earthquakes and volcanic eruptions happen. There is a series of oceanic trenches, volcanic arcs, and volcanic belts and/or plate movement. Now The Ring of Fire is known for area that is very close to several tectonic plat ...
Warm up pg. 86 - Educator Pages
Warm up pg. 86 - Educator Pages

... (called ridge push)  Horizontal movement at the top of a c.c. creates a drag of the crust creating plate motion  When the crust is pulled into a subduction zone, it is known as slab pull ...
plate techtonics - Mid
plate techtonics - Mid

... • Coming from the Latin word, tectonicus, plate tectonics essentially deals with the large scale motions of earths lithosphere ...
DOC - Northwest Creation Network
DOC - Northwest Creation Network

... from off the continents. Then geological evidence for parts of the Earth’s crust rising and parts descending to drain the Floodwater is presented. Geological evidence of sheet currents flowing off the continents is shown in the form of huge erosion of domes and the erosional remnants left behind. Al ...
2017-Earth Forces-Study Guide and Web Quest
2017-Earth Forces-Study Guide and Web Quest

... _______________. As plates made of oceanic crust pull apart, a crack in the ocean floor appears. Magma then oozes up from the _____________ to fill in the space between the plates, forming a raised area called a ___-______ ________. The magma also spreads outward, forming new ________ _________ and ...
SCIENCE NOTES
SCIENCE NOTES

... - Physical Weathering – This is when the crust is exposed to water, air, and temperature changes. - Chemical Weathering – This is when chemicals in the air or rain react to cause changes. How Can Wind and Ice Erode Rock? - Wind can push things along with it, but not as hard as water. - Ice from a gl ...
File
File

... Approach for Retrieving Earth’s Structure • “Geophysical Decomposition” as a tool for interpretation of the observed data Importance of directional measurements ...
Review of Seafloor Spreading
Review of Seafloor Spreading

... Age of sea floor as measured by fossils - Older as one moves away from ridges - Youngest rock is next to the ridge ...
PowerPoint - Cal State LA - Instructional Web Server
PowerPoint - Cal State LA - Instructional Web Server

... Earth has a magnetic field - Probably caused by rotation of solid inner core in liquid outer core (both mostly Fe) When rocks cool at the Earth’s surface, they record Earth’s magnetic field (normal or reverse polarity) ...
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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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