News tagged with geophysicists
More environmental rules needed for shale gas, says Stanford geophysicist
In his State of the Union address, President Barack Obama praised the potential of the country's tremendous supply of natural gas buried in shale. He echoed the recommendations for safe extraction made by ...
Feb 06, 2012 |
5 / 5 (2) |
2
Satellite imagery detects thermal 'uplift' signal of underground nuclear tests
A new analysis of satellite data from the late 1990s documents for the first time the "uplift" of ground above a site of underground nuclear testing, providing researchers a potential new tool for analyzing the strength of ...
Space & Earth / Earth Sciences
Jan 10, 2012 |
not rated yet |
1
|
Stanford scientists' computer models help predict tsunami risk
(PhysOrg.com) -- Stanford scientists are using complex computational models to solve the puzzle of the devastating tsunami that struck Japan earlier this year and predict where future tsunamis might occur.
Space & Earth / Earth Sciences
Dec 14, 2011 |
5 / 5 (1) |
1
Earthquakes: Water as a lubricant
Geophysicists from Potsdam (Germany) have established a mode of action that can explain the irregular distribution of strong earthquakes at the San Andreas Fault in California. As the science magazine Nature reports in its ...
Space & Earth / Earth Sciences
Nov 30, 2011 |
4.8 / 5 (4) |
1
|
Earthquakes generate big heat in super-small areas: study
Most earthquakes that are seen, heard, and felt around the world are caused by fast slip on faults. While the earthquake rupture itself can travel on a fault as fast as the speed of sound or better, the fault ...
Space & Earth / Earth Sciences
Oct 13, 2011 |
4.5 / 5 (4) |
2
|
Golfing reawakens some of dementia's muscle memories
Names, dates, places - such memories are lost to the unforgiving chasm of Alzheimer's disease.
Oct 10, 2011 |
5 / 5 (1) |
0
MESSENGER data paints new picture of Mercury's magnetic field
A University of British Columbia geophysicist is part of a NASA mission that is analyzing the first sets of data being collected by MESSENGER as it orbits Mercury. The spacecraft is capturing new evidence that challenges ...
Space & Earth / Space Exploration
Sep 30, 2011 |
5 / 5 (3) |
5
Electric Yellowstone: Conductivity image hints volcano plume is bigger than thought
University of Utah geophysicists made the first large-scale picture of the electrical conductivity of the gigantic underground plume of hot and partly molten rock that feeds the Yellowstone supervolcano. The ...
Space & Earth / Earth Sciences
Apr 11, 2011 |
4.7 / 5 (15) |
13
|
Flood waning, Iceland volcano eruption less likely
(AP) -- Scientists say glacial flooding from Iceland's most active volcano has peaked, with no sign yet of an eruption.
Space & Earth / Earth Sciences
Nov 04, 2010 |
5 / 5 (1) |
0
New eruption could be looming in Iceland, experts warn
An Icelandic volcano has shown signs it could be about to burst into life, just months after an eruption from another volcano caused Europe's biggest air shutdown since World War II, experts said Monday.
Space & Earth / Earth Sciences
Nov 01, 2010 |
4.5 / 5 (6) |
0
Geophysicists claim conventional understanding of Earth's deep water cycle needs revision
A popular view among geophysicists is that large amounts of water are carried from the oceans to the deep mantle in "subduction zones," which are boundaries where the Earth's crustal plates converge, with ...
Space & Earth / Earth Sciences
Oct 18, 2010 |
4.9 / 5 (17) |
3
|
Underwater gas may hold clues on Turkey quake risk
Natural gas that lies under Turkey's Marmara Sea close to Istanbul could provide advance warning of an earthquake experts believe will hit the country's largest city, scientists said on Tuesday.
Space & Earth / Earth Sciences
Dec 15, 2009 |
5 / 5 (2) |
0
New Technology Allows Geophysicist To Test Theory About Formation of Hawaii (w/ Podcast)
(PhysOrg.com) -- If you've ever been to Hawaii, you probably spent your time enjoying the scenery of the beautiful islands, rather than wondering how they got to be there in the first place. But that's just what scientists ...
Space & Earth / Earth Sciences
Dec 11, 2009 |
4.3 / 5 (4) |
1
New funding will stimulate alternative energy research
Initiatives to provide geothermal heating or power at the Pueblo of Jemez and the New Mexico Institute of Mining and Technology campus are receiving Los Alamos National Laboratory assistance, thanks to recent American Reinvestment ...
Technology / Energy & Green Tech
Nov 16, 2009 |
not rated yet |
0
Optical properties of the Antarctic system and new radiation information
The Antarctic system comprises of the continent itself, Antarctica, and the ocean surrounding it, the Southern Ocean. In a study for a doctoral degree by geophysicist Kai Rasmus, University of Helsinki, Finland, measurements ...
Space & Earth / Earth Sciences
Nov 16, 2009 |
not rated yet |
0
Geophysics
Geophysics ( /dʒiːoʊfɪzɪks/) is the physics of the Earth and its environment in space; also the study of the Earth using quantitative physical methods. 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 hydrological 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 history. The first magnetic compasses date back to the fourth century BC and the first seismoscope was built in 132 BC. Geophysical methods were developed for navigation; 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.
For more information about Geophysics, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
