Sentences with phrase «rocks deposited as»

About two dozen or so fossils of the creature have been recovered, all of them from 240 - million - year - old rocks deposited as sediment on the floor of a shallow, 5 - kilometer - long lake in what is now southern Germany.

Not exact matches

June 30 2011: The French parliament voted to ban the controversial technique for extracting natural gas from shale rock deposits known as hydraulic fracturing, or fracking.
Rocks within the Iron Range property boundaries are of the same age and composition as those which host the Sullivan deposit, located 70 km to the east.
However an examination of other articles by the same author in Ex Nihilo reveals that, to Snelling 1, everything geological (Ayers Rock, Mt Isa ore deposits, Bass Strait oil and gas, Queensland coal deposits, Great Barrier Reef, etc.,) can be explained as the result of Noah's year - long Flood.
App State, as it's known in conference, play in picturesque, inhospitable, 16,500 - seat Kid Brewer Stadium, a.k.a. the Rock, where students tore down the goalposts last Saturday night, then deposited one of them on the front lawn of chancellor Kenneth Peacock.
At those outcrops, the researchers calculated the percent of mud rock in the overall deposit by measuring the thickness of the muddy layers compared with the thickness of layers containing larger grains such as sand.
Certain kinds of sedimentary rocks, called Burgess Shale - type (BST) deposits, have the right characteristics to preserve soft - bodied organisms as thin carbon films.
The deposits are exposed in cross section as relatively pure water ice, capped by a layer one to two yards (or meters) thick of ice - cemented rock and dust.
Impacts exposing subsurface ice deposits and generating hydrothermal activity are one possible explanation for the bright spots and Herschel's water vapor; «cryovolcanoes» that erupt volatiles such as water rather than rock are another.
That could explain two other anomalies from the era's geologic record, Lenton says: the large amounts of organic - rich shale that were deposited as nearshore sediments and the unusually high proportion of carbon - 13 isotopes in the rocks.
«But some oil spills can also function as anthropic saltpeter beds because the water extracted from the oil deposits is extremely saline, as has been dissolving subsurface rocks for years,» he adds.
On Earth, oceans absorb carbon dioxide from the atmosphere and deposit it as carbonate rock.
Carbonate rock deposits found within the mountain ranges of south - central Nevada, USA, record evidence of a catastrophic impact event known as the Alamo impact.
The crater was filled - in with fragmented rock, and later with more typical ocean deposits, as the energy from the impact lessened and the environment returned to normal.
As of now, the reason for the deposits is unknown, but the presence of oxygen in the lunar rock would make those sites attractive for future moon missions, even for human colonies, which could use the oxygen for breathing and as a rocket - fuel componenAs of now, the reason for the deposits is unknown, but the presence of oxygen in the lunar rock would make those sites attractive for future moon missions, even for human colonies, which could use the oxygen for breathing and as a rocket - fuel componenas a rocket - fuel component.
Sedimentary rock such as sandstone and shale, created from layers of deposited material, does an especially good job of preserving animal and plant remains.
The team melted the synthetic rocks in a furnace to simulate the point in time when the deposits were lava, and not yet solidified as rock.
The only way that significant amounts of this mud could have been deposited as sediment in the sea would be if the ice sheet had retreated inland and eroded these rocks, say the team.
In contrast to most whale fossils, which have been discovered in marine rocks, Kenya's beached whale was found in river deposits, known as fluvial sediments, said Jacobs, a professor in the Roy M. Huffington Department of Earth Sciences of SMU's Dedman College of Humanities and Sciences.
The Tava sandstone is unusual for another reason: It may be the only large - scale deposit in the world where sedimentary rocks such as sandstone have been injected into crystalline rocks such as granite, Siddoway says.
On its way toward the surface the magmatic fluids cool and deposit copper in the fractured rocks forming giant metal deposits such as those exploited along the Andean Cordillera.
The French parliament voted on June 30 to ban the controversial technique for extracting natural gas from shale rock deposits known as hydraulic fracturing, or fracking, the web sites of Le Monde and other French media reported.The bill had already passed the National Assembly, the country's lower chamber, on June 21, and on June 30 a Senate vote of 176 to 151 made France the first country to enact such a ban, just as New York State is preparing to lift a moratorium on the same method.The vote was divided along party lines, with the majority conservative party voting in favor and the opposition voting against the bill, according to Le Monde.
Same is true for any other rapid release of a large enough carbon reservoir, such as large enough methane deposits, if they exist, or carbonate rock, if large enough a mass is heated by large enough a magma.
Russian UET resources with 311,000 tonnes of uranium, as well as the remaining Russia «excess» HEU with 108,000 tonnes of uranium, could continue to offset demand for primary uranium from unmined ore deposits, and could reduce the likelihood that new mines such as those proposed near Church Rock and Crownpoint in New Mexico would be mined in the future.
Acritarchs are found in rock deposits that were once marine and terrestrial aquatic environments, and have been described from localities on all continents, as well as from all time periods from the Proterozoic eon (starting 2
As this hot, mineral - rich water comes into contact with the cold bottom water, these minerals precipitate and form deposits on the surrounding rocks.
Bright features such as these are caused by the presence of freshly crushed rock material that was excavated and deposited during the highly energetic collision of a meteoroid with Mercury to form an impact crater.
The flat rocks are perfect for sunbathing, as if they were deposited there by nature for exactly that purpose.
In conclusion, just as a natural esker — a post-glacial deposit of gravel, rock and soil — has taken many moons to carve its place in the world, only time will tell which of these artists leave their mark.
Anoxic sediments have been widespread in the past and are of great economic importance as source rocks for hydrocarbon deposits.
At that time, my position was that most of the 20th century warming was natural because as a geologist, I was well aware of climate (climate is a subset of geology because when we study rocks and their depositional history, climate is a huge driver of how and why different rocks were deposited).
When enough of these carbonate deposits build up, they form carbonate rocks, such as limestone, which are composed of the skeletons of trillions of dead plankton.
Eventually, over hundreds of millennia, weathering of rocks will deposit all of this initial CO2 pulse on the ocean floor as carbonate sediments [168].
(4) Any island, rock, or key containing deposits of guano, which may, at the discretion of the President, be considered as appertaining to the United States.
Geologists analyze rocks, soil, groundwater, and other conditions for various purposes, such as forecasting mineral deposits or preparing construction developments.
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