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Go to a new page in your spiral and write the title “Volcanoes
Go to a new page in your spiral and write the title “Volcanoes

... 2. What is the name of the supercontinent? 3. What does a geologist do? 4. What evidence is there to show that there might have been a supercontinent? 5. What are plates? 6. How can plates move? 7. What is seafloor spreading? 8. What is an ocean trench? 9. What events occur at plate boundaries? 10. ...
Mechanism of Earthquake and Damages of Structures
Mechanism of Earthquake and Damages of Structures

... earthquake. Shaking of the ground is different depending upon the types of seismic-energy waves. Combination of different waves and their reflections and refractions by the boundaries within the earth generate many other types of seismic waves, but these are of interest to seismologists. The P wave, ...
Essentials of Geology Plate Tectonics: A Unifying Theory
Essentials of Geology Plate Tectonics: A Unifying Theory

... southern continents suggest this reconstruction of Gondwana ...
Volcanoes A volcano is a landform (usually a mountain) where
Volcanoes A volcano is a landform (usually a mountain) where

... There are around 1510 'active' volcanoes in the world. We currently know of 80 or more which are under the oceans. An earthquake occurs when two plates pushing past each other cause a fracture in the Earth’s crust. 1.1. Lava and Magma Magma is liquid rock inside a volcano. Lava is liquid rock (magma ...
UCLA, ESS
UCLA, ESS

... Thus far we have described two different types of plate interactions: divergence at mid-ocean ridges, and convergence at ocean trenches. There is a third type of boundary, the transform fault, which occurs where two plates are moving in parallel but opposing directions; in other words, the plates s ...
Plate tectonics notes
Plate tectonics notes

... tectonic plates • TEKS 6.10D describe how plate tectonics causes major geological events such as ocean basins, earthquakes, volcanic eruptions, and mountain building ...
test guide science subtest iii: earth and planetary
test guide science subtest iii: earth and planetary

... Earth's Place in the Universe 1. Correct Response: D. (SMR Code: 1.1) At the extremely high pressures and temperatures found inside stars, atomic nuclei fuse to form new elements. The fusion of hydrogen atoms first creates helium, which then fuses to form carbon and oxygen, which in turn may form si ...
Name: ____ Due Date: Guidelines: A.) Each item is to be done on a
Name: ____ Due Date: Guidelines: A.) Each item is to be done on a

...  Each item is worth 4 points as follows –  1 point for item being NEAT & in COLOR.  1 point for item being COMPLETE with item number.  1-2 points for CORRECTNESS. (1 if you’re on the right track; 2 if you are correct.) F.) 10 points will be deducted for every day that the project is late. It is ...
שקופית 1
שקופית 1

... or: Any mass of mineral matter which forms part of the Earth’s crust. Rock may consist of only one mineral species (mono-mineral rock) or be an aggregate of mineral species. ...
SEDIMENTARY ROCKS
SEDIMENTARY ROCKS

... location of heat source 1. Regional metamorphism - heat source in not apparent, but generally higher; associated with mountain building episodes extending over large regions 2. Contact metamorphism - heat source is apparent i.e. associated with intrusion of a magma that "cooks" the surrounding rocks ...
PLates and volcano Review Power Point
PLates and volcano Review Power Point

... 2. What type of lava can be observed on a non-violent divergent boundary? Basaltic 3. What are the main elements in the less dense continental crust? silicon and oxygen 4. What is the most common type of eruption on earth? divergent 5. Which type of lava has the highest viscosity? Rhyolitic ...
File
File

... Explain how mantle plumes (hot spots) provide evidence for the rate and direction of tectonic plate movement Evaluate how the distribution of earthquakes and volcanoes provides evidence for the current theory of plate tectonics Describe a lithospheric plate and identify the major plates of the earth ...
Fig. 1
Fig. 1

... directions; in other words, the plates slide past one another. In some cases, transformfault boundaries are found on continents (such as the San Andreas fault in California, and the Alpine fault system in New Zealand). In such cases, two blocks of continental crust are sliding past one another. Thes ...
Restless Earth Review
Restless Earth Review

... Which layers are partially solid? ...
Volcanoes - National Geographic Society
Volcanoes - National Geographic Society

... A volcano is an opening in Earth’s crust that allows molten rock from beneath the crust to reach the surface. This molten rock is called magma when it is beneath the surface and lava when it erupts or flows from a volcano. Along with lava, volcanoes also release gases, ash, and rock. It’s a super ho ...
Note Packet
Note Packet

... Example: The limestone was formed 2 mya (million years ago) and the sandstone was formed 1 mya. Let’s review some basic chemistry to see how this works… Radioactive Isotope Dating  An element is a substance consisting of atoms that are chemically alike.  Most elements exist in several different ty ...
Metamorphic Rocks!
Metamorphic Rocks!

... • Metamorphic effects also decrease with distance • Limited to thin zones because lava cools quickly • Example: marble  forms when magma intrudes a ...
ppt
ppt

... -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 spatial occurrence of intraplate earthquakes: stress ...
Why is the oldest ocean crust only ~180 Ma?
Why is the oldest ocean crust only ~180 Ma?

... C.  Because the plates are grinding against each other at the MOR, causing ‘crumpling’ of the ridge ...
Earthquake and Volcano Readings
Earthquake and Volcano Readings

... Earthquakes and the Earth’s Interior The Earth's crust vibrates when rocks fracture and slip along a fault. The vibrations travel through Earth as seismic waves. Some seismic waves travel along the surface. Others travel through Earth's interior. Both types of seismic waves move outward in all direc ...
Understanding Plate Boundaries - Merrillville Community School
Understanding Plate Boundaries - Merrillville Community School

... along subduction zones. The volcanic mountains that you plotted along the western coast of South America in Activity 44 are a result of the oceanic lithosphere of the Pacific plate being subducted below the continental lithosphere of the South American plate. Subduction also occurs when two sections ...
Plate Tectonics - Ms. Hilgefort`s Science Classroom
Plate Tectonics - Ms. Hilgefort`s Science Classroom

... rocks caused by moving glaciers, have been found on rocks in South America, Africa and Australia and are of similar orientation to striations found on Antarctica ...
Plate Tectonics, and the Wilson Cycle
Plate Tectonics, and the Wilson Cycle

... C.  Because the plates are grinding against each other at the MOR, causing ‘crumpling’ of the ridge ...
Final Exam Practice Quiz 1. What is the chief source of energy for
Final Exam Practice Quiz 1. What is the chief source of energy for

... 1. Which term best describes long term weather conditions? a) Meteorology b) Weather c) Climate d) Isotherms 2. Koppen's system of climate classification is based upon: a) b) c) d) e) ...
“Excess Argon”: The “Archilles` Heel” of Potassium
“Excess Argon”: The “Archilles` Heel” of Potassium

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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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