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The sands are predominantly silicates, composed of 80 to 90 % of quartz and the remainder feldspar, whose iron oxide-coated grains color the sands in orange, purple, and red.
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sands and are
Oil sands are found in the northeast, especially around Fort McMurray ( the Athabasca Oil Sands ).
Also, Macdonald Carey's legendary line " Like sands through the hourglass, so are the days of our lives " can be considered an epigram, as the meaning of life is concisely explained in a simile.
A major source of zircon ( and hence hafnium ) ores are heavy mineral sands ore deposits, pegmatites particularly in Brazil and Malawi, and carbonatite intrusions particularly the Crown Polymetallic Deposit at Mount Weld, Western Australia.
Beach sands rich in heavy minerals, and offshore placer deposits are actively exploited by bordering countries, particularly India, South Africa, Indonesia, Sri Lanka, and Thailand.
Targets are divided into two general categories of materials: placer deposits, consisting of valuable minerals contained within river gravels, beach sands, and other unconsolidated materials ; and lode deposits, where valuable minerals are found in veins, in layers, or in mineral grains generally distributed throughout a mass of actual rock.
The sands that make up the sand sea are a consequence of erosional processes that take place within the Orange River valley and areas further to the south.
The geological properties of a white silica sand found at Basin Head are unique in the province ; the sand grains cause a scrubbing noise as they rub against each other when walked on, and have been called the " singing sands ".
Grain sizes in sands are defined ( in geology ) within the range of 0. 0625 mm to 2 mm ( 0. 002 – 0. 079 inches ).
Ocean beaches are habitats with organisms adapted to salt spray, tidal overwash, and shifting sands.
Shales are typically deposited in very slow moving water and are often found in lakes and lagoonal deposits, in river deltas, on floodplains and offshore from beach sands.
The marshes occupy approximately, although wind blown sands are encroaching in some areas.
Heavy crude oil, which is much more viscous than conventional crude oil, and tar sands, where bitumen is found mixed with sand and clay, are becoming more important as sources of fossil fuel.
Typical materials that are transferred using slurry pipelines include coal, copper, iron, and phosphate concentrates, limestone, lead, zinc, nickel, bauxite and oil sands.
These sands cannot support crops, and if the trees are removed erosion is rapid and severe.
Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and ocean dunes and loess are examples of aeolian transport and deposition.
They are to be found in rocky deserts and badlands, in prairies and grassland, in mountainous regions, in light woodland, in coastal sands ( Yucca filamentosa ), and even in subtropical and semi-temperate zones, although these are generally arid to semi-arid.
The speaker believes that the king's sole intended meaning of " despair " was that nobody could hope to equal his achievements, but the traveler seems to find another meaning — that the reader might " despair " to find that all beings are mortal, that king and peasant alike inevitably share oblivion in the sands of time.
The sands of the Aral Karakum are made up of a salt-marsh consisting of finely-dispersed evaporites and remnants of alkaline mineral deposits, washed into the basin from irrigated fields.
But as a result of past degradation, the sands are left very weathered, leached and lacking in nutrients.
:" Our sins are more in number than the sands of the sea ;
Its white sands are not composed of quartz, like most desert sands, but of gypsum and calcium sulfate.
sands and predominantly
The Bar Harbor Formation, which is made up predominantly of sands and silts, and Cranberry Island Formation, made up from volcanic ash and magmatic debris, occurred under similar circumstances in the Silurian and Devonian periods, and were deposited on top of the Ellsworth Schist.
Cornbrash, Inferior and Great Oolite rocks have dictated that the soils of Moulton are predominantly sands and clays, but small quantities of ironstone may be found.
The river sands on the bank of Gauthami Godavari consists predominantly of quartz, felspar and muscovite mica.
The area of Poole Bay was predominantly created during the Pleistocene period, when the Solent river ran across the whole of South East Dorset and West Hampshire, out past the Isle of Wight The solid geology of the cliffs, and the seabed beneath Poole Bay, is composed of rocks of the Tertiary Bracklesham Group, consisting of a sequence of fine, medium and coarse sands.
sands and silicates
It is most widely distributed in dusts, sands, planetoids, and planets as various forms of silicon dioxide ( silica ) or silicates.
sands and composed
Libyan Desert silica-glass, another natural glass, is composed of nearly pure silica and has the same trace germanium content as sands in the area.
The Ogallala Formation is composed of fine to course sand, some gravel, calcareous silt, silty sands, silts and clays.
The Forest of Fontainebleau in the western end of which Milly-la-Forêt lies, is composed of the Oligocene Fontainebleau sands, which are a marine deposit, laid down in an intertidal zone.
Originally an island composed mainly of basaltic-andesitic lava flows and dykes, drifting sands have joined it to the rest of the North Island during the late Pleistocene.
Most of Cape Cod is composed of glacially derived rocks, sands, and gravels.
In the piedmont area, these clays become mixed with silts and sands, and in some areas close to the mountains, the piedmont is largely composed of basalt from old lava flows.
There are also, in very low amounts and really localized over the Senanque Abbey, soils dating from the Eocene / Oligocene composed of limestones, sands and clay.
the hills area of " les garrigues " ( at south of the village ) is composed of soil dating from the Cretaceous – Paleocene ( calcareous sandstone, calcareous lacustrine clay, colorful, white and ocher sands and some ferruginous ) and from the Miocene ( molasses limestone, sand and marl ).
sands and 80
The largest bitumen deposit, containing about 80 % of the Alberta total, and the only one suitable for surface mining, is the Athabasca oil sands along the Athabasca River.
Because some 80 % of Alberta's oil sands are too far below the surface for standard mining and drilling procedures to access, Husky plans to use Steam Assisted Gravity Drainage technology, by which bitumen is heated with steam to reduce its viscosity.
Through the use of real sands and stone chip, sandstone composite can be created which is 80 % natural non-processed material.
sands and 90
It is estimated that approximately 90 % of the Alberta oil sands are too far below the surface to use open-pit mining.
The Venezuelan extra heavy oil deposits differs from oil sands in that they flow more readily at ambient temperature and could be produced by cold-flow techniques, but the recovery rates would be less than the Canadian techniques ( about 8 % versus up to 90 % for surface mining and 60 % for steam assisted gravity drainage ).
With coal's emissions about one-third higher than convention oil's, this would make the oil sands ' emissions equal to about 90 % of the released from coal.
sands and %
Thulium is principally extracted from monazite (~ 0. 007 % thulium ) ores found in river sands, through ion-exchange.
However, commercial monazite sands typically contain between 6 and 12 % thorium oxide.
44 % of Canadian oil production in 2007 was from oil sands.
Oil sands industries water license allocations totals about 1. 8 % of the Athabasca river flow.
A 2009 study by the consulting firm IHS CERA estimated that production from Canada's oil sands emits " about 5 % to 15 % more carbon dioxide, over the
" Author and investigative journalist David Strahan that same year stated that IEA figures show that carbon dioxide emissions from the oil sands are 20 % higher than average emissions from the petroleum production.
According to the Canadian Association of Petroleum Producers and Environment Canada the oil sands make up about 5 % of Canada's greenhouse gas emissions, or 0. 1 % of global greenhouse gas emissions.
It predicts the oil sands will grow to make up 8 % of Canada's greenhouse gas emissions by 2015.
Imperial owns 25 % of Syncrude Canada Ltd., the world's largest producer of synthetic crude oil from surface mining of oil sands.
A 2009 study by CERA estimated that production from Canada's oil sands emits " about 5 – 15 % more carbon dioxide, over the " well-to-wheels " lifetime analysis of the fuel, than average crude oil.
" Author and investigative journalist David Strahan that same year stated that IEA figures show that carbon dioxide emissions from the tar sands are 20 % higher than average emissions from oil.
Nippon Oil Exploration also owns a 5 % share of Syncrude, a Canadian oil sands mining company, through its fully owned subsidiary Mocal Energy.
While Suncor has reduced the greenhouse gas emissions intensity of its oil sands operations by more than 50 % since 1990, total greenhouse gas emissions from the company's operations have increased because of growing oil sands production.
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