Sentences with phrase «of sediments into»

diagenesis: The physical, chemical or biological alteration of sediments into sedimentary rock at relatively low temperatures and pressures that can result in changes to the rock's original mineralogy and texture.
As wind and rain erode the mountain range, massive rivers carry more than a billion tons of sediment into the Bay of Bengal each year; in some places, the layer deposited since the most recent ice age is more than one kilometer thick.

Not exact matches

Turbid waters spill out into the Gulf of Mexico where their suspended sediment is deposited to form the Mississippi River Delta.
We recommend either pouring the beer into a glass slowly, leaving the last bit of sediment in the bottle or pouring half into a glass, gently rousing the bottle or can, and then finishing your pour.
... no evidence it was, yet there it is... when you look at it, it in fact was not designed, but it was laid down over millions of years... a sedimentary rock... the rock was not designed... maybe the PROCESSES that made the rock were desined... not really... gravity makes water flow into the lowest ares and when the water moves more slowly, sediment is dropped, forming rock... Still not seeing a designer... what about water... simple chmistry there, designed?
This is but a general fact that present projects must take into account the legacy of the sedimented past, although the latter does not determine the shape of the former.
When you pour the ginger syrup, make sure that the white sediments at the bottom of the container do not fall into the sugar syrup.
Great gobs of unconscious material drift into sight, as if your hands were digging up the sediment of memory with every stroke.
Data included in this presentation includes the Origins & Hydrogeologic Classification of Sediments, Hypothesized Pathways of PFOA Migration into the Village of Hoosick Falls well field, an Interpretive Cross Section through the Village Well Field, and more information.
The small time increments scientists were able to capture in the cores are due to the large amounts of sediment that empty into the Gulf from rivers in Mexico and North America.
The proposed end to «pulse trawling» — in which short bursts of electricity get flatfish out of the sediment and into nets — is a major disappointment to Dutch fishing companies, which have invested heavily in the technology; they claim it's less damaging to marine ecosystems than traditional bottom trawling and saves energy.
Specifically, they have found unnaturally high levels of antibiotic resistance genes in sediments where the river comes into contact with treated municipal wastewater effluent and farm irrigation runoff as it flows 126 miles from Rocky Mountain National Park through Fort Collins and across Colorado's eastern plain, home to some of the country's most densely packed livestock operations.
Weaknesses in the field are believed to be created by «slab graveyards» — ancient pieces of crust and sediment that were pushed down into the Earth when plates collided and are now falling through the mantle.
Cohen and his colleagues figured out the lake's environmental history 1,500 years into the past by taking cores of the lake's bottom sediments and analyzing the biological and chemical history stored in the sediment layers.
Led by Ken Buesseler, a senior scientist and marine chemist at the Woods Hole Oceanographic Institution (WHOI), the team found that a small fraction of contaminated seafloor sediments off Fukushima are moved offshore by typhoons that resuspend radioactive particles in the water, which then travel laterally with southeasterly currents into the Pacific Ocean.
«We know the sediments are of deep sea and terrestrial origin, including those eroded from the high Himalayas and transported thousands of kilometres into the Bay of Bengal and eastern Indian Ocean.
And so a team of marine sediment experts has set up shop on the Nathaniel B. Palmer, hoping to sink great hollow cores deep into the ocean off Antarctica.
Rain water is shunted into storm drains, pushing the contaminated sediment downstream and delivering a fresh load of toxic runoff and snowmelt from city streets to Little Black Creek.
He and colleagues thought that the answer to the floodwater question might also lie in the lakes» moraines — piles of sediments bulldozed by glaciers into high ridges that act as dams.
«This ocean drilling expedition will for the first time drill scientific boreholes within the sediments entering this subduction zone, including the layer of sediment that eventually develops into the earthquake - generating fault,» Professor Henstock explained.
The clues for humanity's entrance into the Anthropocene, he says, lie in the traces we've left behind in layers of sediment and soil.
Previous ocean sediment records suggest that, as the world slipped into the last glacial period, less carbon overall reached the sediments of the Southern Ocean, coinciding with declining atmospheric carbon dioxide.
The temperature increase triggered a chemical transformation within the sediment, pushing water out of the mineral crystals and into tiny pores between the grains.
That's because while the dams stopped new sediment flowing into the river, vast quantities of sand were already trapped in riverbed dunes downstream of the dams (Nature Geoscience, doi.org/sfr).
The rocks were of sandstone, siltstone, and shale: thin layers of sediment, each layer representing a year, or 10, or 100 — I had no idea — welded by time into varying degrees of solidity.
Higher lake temperatures may speed the conversion of carbon - rich organic matter in lake sediments into methane and carbon dioxide, gases that once released into the atmosphere could exacerbate global warming.
Falling water levels have exposed fine - grained sediments along the periphery of the lake; high winds whip up those sediments into nasty clouds of dust that cause health problems for residents throughout the region.
But engineering of the river to make it better for shipping has caused much of its sediment to flow into deep water.
The proposed end to «pulse trawling» — in which short bursts of electricity get flatfish out of the sediment and into nets — is a major disappointment to Dutch fishing companies, which have invested heavily in the technology; they claim it is less damaging to marine ecosystems than traditional bottom trawling and saves energy.
That may in turn have caused the planet to heat up enough to melt deposits of methane frozen in sediments on the ocean floor (something, incidentally, that could happen again), discharging even more potent greenhouse gases into the atmosphere and further heating the planet in an escalating feedback loop.
To further refine the probability estimates, they took into account past (prior to recorded history) tsunamis — evidence of which is preserved in geological layers in coastal sediments, volcanic tephras, and archeological sites.
Islands that are atolls, with foundations of coral sediment, could crumble into more acidic seas, experts say.
Past analysis suggested these fish were adapted for burrowing into sediment, but new specimens hint that some of them have evolved for a more specialised lifestyle.
And last fall's Hurricane Sandy along the U.S. East Coast has kept USGS scientists hopping, assessing storm surges, the effects of erosion, and the pulses of sediment and pollutants thrust into waterways by the storm.
One of those more lasting — and even less appealing — problems: sewage, sediment and other pollutants churned up and swept into waterways by the storm.
Dr Lewis's research into the geology of the site has provided vital information on the sediments in which the prints were found.
And, unfortunately, the microbes» speed is limited not by the availability of oil — or even its droplet size, which is why chemical dispersants have been used to break up the oil into microbe - friendly globules — but by the availability of various nutrients, such as nitrogen and phosphorus that wash into the ocean via rivers carrying sediments from the continents.
The researchers found the chironomids burrowed into the sediment, moving water and oxygen into the sediment and increased the levels of nutrients released into the sediment porewater and water column.
Dr. Hoffmann: «The isotope Hafnium 176 in contrast to its counterpart Neodymium 143 was transported by means of weathering into the oceans and became part of iron - rich sediments on the sea floor 2,700 million years ago.»
The grains settle into a layer of cryoconite sediment on the bottom.
By looking at how concentrations of chemical elements in the sediment change with depth, the researchers can develop a continuous record of how much surface runoff poured into the lake.
If a dinosaur stepped through mud instead of sand, the prints themselves wouldn't survive as fossils; because of its high organic content, mud turns into crumbly coal when compressed beneath other sediment layers.
A photosynthetic microorganism was turned into fuel without having to die, be buried in sediment and cooked by eons of geologic processes into petroleum.
The purpose was to create a bathymetric picture of the sea bottom and to collect reflection seismic data, which allows researchers to peer into the sediments and rocks underneath the seafloor.
They were 75 miles west of the Crimean city of Sevastopol, 750 feet above an undersea slope along which sediment from the Dnieper River cascades down into the depths.
For 2 months in 2013, the JOIDES Resolution, the ship for the International Ocean Discovery Program, drilled into the ocean floor sediments, retrieving cores of mud and rock that were then dated.
The climate reconstructions take into account a variety of gauges found in nature, such as tree rings, ice cores, and lake sediments.
The flume will also provide new insights into natural processes such as sediment transport along shorelines and the mechanical properties of coastal soils, López Lara says.
In 1991, the IMO adopted guidelines which recommend that ships should avoid taking on ballast in shallow areas and during toxic blooms of marine algae; keep accurate records of where and when ballast is loaded; exchange ballast water at sea, where toxic organisms are rare; and discharge sediments into approved areas at the port of destination («End of the line for deadly stowaways», New Scientist, 24 October 1992).
In another fossil (middle panel), which contains skin and unusually long claws, sediment snuck into the lizard's body during fossilization and created a mold of some bones.
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