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Latest Structure of the Earth Stories

3a1d768a4d948a13b36ac73ba4449aea1
2008-09-09 14:50:00

Scientists at the University of Liverpool have developed a new exploration method to assist the oil and gas industry in identifying more precisely where the oceans and continents meet. Geophysicists at Liverpool have produced a mathematical technique to process satellite data that can map the thickness of the Earth's crust under the oceans in order to locate where the continents meet oceanic crust. The technique has been used to measure the crustal thickness of areas such as the South...

6e925c9274aa5c1811f4be40dbb11a081
2008-08-13 13:35:00

Diamonds from Brazil have provided the answers to a question that Earth scientists have been trying to understand for many years: how is oceanic crust that has been subducted deep into the Earth recycled back into volcanic rocks? A team of researchers, led by the University of Bristol, working alongside colleagues at the STFC Daresbury Laboratory, have gained a deeper insight into how the Earth recycles itself in the deep earth tectonic cycle way beyond the depths that can be accessed by...

27f16be5586b8d2bada97100b6b769391
2008-08-01 11:44:49

A recent study of marine fossils is revealing ancient clues to conservation efforts. Through studying marine fossils, researchers have found that regions in the Mediterranean and an area off the Middle East used to be hotspots for marine life in the past 50 million years. The formation of each marine hotspot, previously little understood, coincided with shifts of vast plates in the earth's crust, they said. Shallow seas suitable for thousands of species can emerge when continents start to...

2008-08-01 03:00:26

By Steinhoefel, Grit Hegner, Ernst; Oliver, Grahame J H Abstract: Major- and trace-element data and Nd isotope compositions for granitoid samples from the Grampian Highlands in Scotland show a systematic evolution in the composition of their sources in the course of the Caledonian Orogeny. Granitoids of 511- 451 Ma, related to the collision of the Midland Valley island arc with the Grampian terrane, show S-type affinity and fractionated REE patterns with minor Eu anomalies and low initial...

2008-07-24 15:00:54

VANCOUVER, BRITISH COLUMBIA--(Marketwire - July 24, 2008) - Tumi Resources Limited ("Tumi" and/or "the Company") (TSX VENTURE:TM)(OTCBB:TUMIF)(FRANKFURT:TUY). David Henstridge, President of Tumi, announces the completion of the Phase 1 core drill program at its 100% owned Sala silver-zinc-lead project in Sweden. Ten drill holes were completed totalling 2,282.3 meters. On July 16, 2008, the Company announced the assay results of the first diamond drill hole at the Sala silver-zinc-lead...

2008-07-22 12:00:53

GoldQuest Mining Corp. ("GoldQuest" or the "Company") (TSX VENTURE: GQC)(FRANKFURT: M1W) is pleased to provide a further update on the current phase of drilling and exploration on its 100% owned Las Animas project. HIGHLIGHTS - Drill hole LA-35 returned 10.08 meters grading 2.29 g/t Au, 3.76 % Cu, 3.62 % Zn and 51.84 g/t Ag extending the massive sulphide mineralization at depth and to the east; - Drill hole LA-36 returned 4.79 meters grading 2.50 g/t Au, 2.77 % Cu, 5.45 % Zn, and 49.63...

2008-07-17 09:00:31

Wi-Fi hotspots are continuing their torrid growth in 2008. According to ABI Research's WI-FI Hotspots Forecasts, by the end of this year global hotspots will grow by 40% over 2007. The greatest growth and the largest number of hotspots continue to be found in Europe. While the UK has long led in European Wi-Fi hotspots, there is also marked growth in France, Germany, and Russia. Most remarkable about the hotspot market, says vice president and research director Stan Schatt, are the...

28f9b4b16f11c0396d5f753d3bf1404f
2008-06-14 08:45:48

MADISON - A new analysis of ancient minerals called zircons suggests that a harsh climate may have scoured and possibly even destroyed the surface of the Earth's earliest continents. Zircons, the oldest known materials on Earth, offer a window in time back as far as 4.4 billion years ago, when the planet was a mere 150 million years old. Because these crystals are exceptionally resistant to chemical changes, they have become the gold standard for determining the age of ancient rocks, says...

2008-06-06 03:00:33

By Oliver, Grahame J H Wilde, Simon A; Wan, Yusheng Abstract: Thirty-seven granitoids from Scotland have been dated using the sensitive high-resolution ion microprobe zircon method. Granitoids were intruded during: (1) crustal stretching at c. 600 Ma after Rodinia broke up (A-types); (2) the Grampian event of crustal thickening when the Midland Valley Arc terrane collided with Laurentia at c. 470 Ma (S-types); (3) erosion and decompression of the over-thickened Laurentian margin at c. 455...

e32614fa719d9062414220384c08426d
2008-05-13 10:35:00

A new study of possible links between climate and geophysics on Earth and similar planets finds that prolonged heating of the atmosphere can shut down plate tectonics and cause a planet's crust to become locked in place."The heat required goes far beyond anything we expect from human-induced climate change, but things like volcanic activity and changes in the sun's luminosity could lead to this level of heating," said lead author Adrian Lenardic, associate professor of Earth science at Rice...


Latest Structure of the Earth Reference Libraries

Seismology
2014-01-12 00:00:00

Seismology is the scientific study of earthquakes and the spread of elastic waves through the Earth or through other planet-like bodies. The field includes studies of earthquake effects, such as tsunamis in addition to diverse seismic sources such as tectonic, volcanic, oceanic, atmospheric, and artificial processes. A related field that utilizes geology to infer information regarding past earthquakes is paleoseismology. A recording of earth motion as a function of time is a seismogram. A...

0_a4a5653b4a287158357a3d5b37b58d01
2014-01-12 00:00:00

Earth science (or geoscience) is the science of the planet Earth. Earth science can be broken down into four major disciplines, which are: geography, geology, geophysics, and geodesy. These disciplines use physics, chemistry, biology, chronology and mathematics to arrive to a greater understanding of the principal areas of the Earth system. Since Earth is the only known life-bearing planet, Earth science is solely dedicated to the geophysical makeup of our own planet. One discipline,...

6_914a7fcc557496313161b2da1b718dea2
2004-10-19 04:45:41

Meteorite -- A meteorite is a relatively small extraterrestrial material body that reaches the Earth's surface. While in space these bodies are called meteoroids. Upon entering the atmosphere air drag and friction will cause the body to heat up, emitting light, thus forming a meteor, fireball, or shooting star. Most meteors disintegrate in the air, making impact events (Earth impacts) on the surface of Earth uncommon. About 500 baseball sized rocks a year reach the surface. Large...

4_33609f8ebef994f54be143abe0bef9f42
2004-10-19 04:45:40

Earth -- in geology and astronomy, fifth largest planet of the solar system and the only planet definitely known to support life. Gravitational forces have molded the earth, like all celestial bodies, into a spherical shape. However, the earth is not an exact sphere, being slightly flattened at the poles and bulging at the equator. The equatorial diameter is c.7,926 mi (12,760 km) and the polar diameter 7,900 mi (12,720 km); the circumference at the equator is c.24,830 mi (40,000 km)....

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Word of the Day
lambent
  • Licking.
  • Hence Running along or over a surface, as if in the act of licking; flowing over or along; lapping or bathing; softly bright; gleaming.
This word comes the Latin 'lambere,' to lick.
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