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Topic: Alluvial soil


  
  Alluvium - Wikipedia, the free encyclopedia
Even small streams make alluvial deposits, but it is in the flood plains and deltas of large rivers that large, geologically-significant alluvial deposits are found.
Alluvial deposits often contain valuable ores such as gold and platinum and a wide variety of gemstones.
The alluvial mud annually deposited by the Nile has enabled the Egyptians to grow crops since at least the 4th millennium BC without artificial fertilization.
en.wikipedia.org /wiki/Alluvial_soil   (355 words)

  
 Soil Survey in NSW - Terminology and Definitions   (Site not responding. Last check: 2007-10-24)
Soil landscapes are areas of land that have recognisable and specifiable topographies and soils, that are capable of presentation on maps, and can be described by concise statements (Northcote 1978).
Soil materials are three dimensional soil entities that have a degree of homogeneity and lateral continuity (Atkinson 1993).
Soil material numbers may be missing where soil materials have been previously described for the same soil landscape on an adjacent map but are not sufficiently common on the current map sheet to be described in full.
www.dlwc.nsw.gov.au /care/soil/ssu/termsdef.htm   (1849 words)

  
 Soil glossary   (Site not responding. Last check: 2007-10-24)
Alluvial Pan or Alluvial Cone: Sediments deposited in a characteristic fan or cone shape by a mountain stream as it flows on to a plain or flat open valley.
Gleyed: A soil condition resulting from gleization which is manifested by the presence of neutral gray, bluish or greenish colors through the soil matrix or in mottles (spots or streaks) among other colors.
Soil Amendment/Soil Conditioner: Soil additive which stabilizes the soil, improves resistance to erosion, increases permeability to air and water, improves texture and resistance of the surface to crusting, eases cultivation or otherwise improves soil quality.
www.stthomas.edu /geog/Physgeog/soil_glossary.htm   (9564 words)

  
 nepal
Alluvial soil is found in the valleys of the Terai region and in the middle hill valleys around Kathmandu and Pokhara.
Alluvial soil is also found in the slightly higher areas above the flood plain covering a greater part of the Terai.
Soils of the Churia hills are very young and coarse, and are dry for most of the year.
www.fao.org /WAICENT/FAOINFO/AGRICULT/AGP/AGPC/doc/Counprof/Nepal.htm   (3598 words)

  
 Gateway to Land and Water Information: Myanmar Text 2.2.1 Soil types and distribution
In the texture classification, soil comprises sand, silt and clay, the soils which contain large amount of silt are classified as alluvial soils.
The Meadow soils in the mountainous region with high rainfall and Meadow soils of the lower Myanmar have yellow brown colour with acid to neutral soil reaction, the meadow soils which occur near the river plains with occasional tidal floods are non-carbonate.
The soils are deficient in nitrogen and phosphorus.
www.fao.org /AG/aGL/swlwpnr/reports/y_ta/z_mm/mmtx221.htm   (2424 words)

  
 Abandoned Meander Channel
Typically, a floodplain may have several sets of alluvial terraces at different elevations and of different ages (the higher the elevation, the older the age).
A soil order composed of organic soils (peats and mucks) with generally greater than 50% organic matter in the upper 80 cm (32 in) or that are of any thickness if overlying rock.
A subdivision of a soil family that consists of soils that are similar in all major soil profile characteristics and arrangements.
www.umt.edu /watershedclinic/links/clarkfork/wetlands/Definitions.htm   (3568 words)

  
 sffchap5   (Site not responding. Last check: 2007-10-24)
Alluvial deposits that occur where the stream frequently floods over them are called flood plains.
Soils have since been developing in the transported materials left by the glacier.
The area is very flat, as you might expect the bottom of a lake to be, and the soils are very high in clay because the coarser sand and silt deposits were dropped near the shore.
www.soils.agri.umn.edu /academics/classes/soil2125/doc/s4chp5.htm   (1948 words)

  
 Classification of Great Soil Groups in the Seyhan Basin of Turkey, According to Different Soil Classification Systems
Alluvial soil in the profile 1 was developed on fine textured alluvial material.
Alluvial soil in the profile 2 was formed on heavy textured alluvial material.
Brown Forest soil in the profile 6 was formed on clayey schist, residual old colluvium from marl and unconsolidated limestone.
www.toprak.org.tr /isd/can_58.htm   (1472 words)

  
 Potassium forms in some main soil types of Vietnam   (Site not responding. Last check: 2007-10-24)
Studied soil samples are alluvial soils, of the Red River, Thai Binh River alluvial soil, degraded soil, acid sulfate soil, marine sandy soil and saline soil.
Soil physical properties are closely related to parent materials and cultivation measures and land use.
Soils derived on schist, old alluvial soil, grey degraded soil have high bulk density and change by cultivation measures.
www.fadinap.org /vietnam/soilfundamental.html   (1899 words)

  
 Wrench - Reconstruction by Way of the Soil - Ch15
The soil of Sind is, therefore, very deep compared to weathered soils; in place of the four feet of weathered soil, of which Mr.
An alluvial soil, seen in the cutting of an embankment, is featureless, but it also lacks uniformity, for it is the result of a series of irregular floods carrying their silt hither and thither in no regimented way.
Nature's way of soaking these soils in arid countries is precisely the same as that by which she forms them, namely, by an annual overflow of the river.
journeytoforever.org /farm_library/Wrench_Recon/Wrench_Recon_15.html   (3391 words)

  
 [No title]
Soils characteristic of wet environments are mapped in many of these valleys, and the few data available on depth to ground water indicate shallow ground-water levels.
Soils are histosols, aquic entisols or mollisols and are mapped as Correra, Venice, Staten, Egbert, Ryde, Burns and Roberts soil series of Cosby (1941, in Atwater, 1982).
Alluvial fan surfaces are steepest near their apex at the valley mouth, and slope gently basinward, typically with gradually decreasing gradient.
pubs.usgs.gov /of/2000/of00-444/of00-444_3a.txt   (13678 words)

  
 Tied-Back Excavations in Alluvial Soil of Taipei   (Site not responding. Last check: 2007-10-24)
The measured lateral pressure diagrams for these tied-back excavations are close to the summation diagrams of groundwater pressure and lateral pressure calculated from the method of Terzaghi and Peck in 1967 or Tschebotarioff in 1973 for sandy soil but with a minor difference.
The dominant sandy soil layer and groundwater pressure played a major role in determining the anchor load diagrams.
The measured lateral wall movement for these tied-back excavations is found to be similar to that of cross-lot braced excavations in alluvial soil of Taipei both in magnitude and in profile.
www.pubs.asce.org /WWWdisplay.cgi?0202047   (182 words)

  
 Bangladesh - Wikipedia, the free encyclopedia
The alluvial soil deposited by these rivers has created some of the most highly fertile plains of the world.
Natural calamities, such as floods, tropical cyclones, tornadoes, and tidal bores occur almost every year, combined with the effects of deforestation, soil degradation and erosion.
Cox's Bazar, south of the city of Chittagong, has a beach that stretches uninterrupted over 120 kilometres (75 mi); it is one of the longest unbroken natural sea beaches of the world.
en.wikipedia.org /wiki/Bangladesh   (4138 words)

  
 Effects of Amphiphilic Amines on Moisture Characteristics of Alluvial and Volcanic Soils -- Suetsugu et al. 65 (4): ...
OM on the moisture characteristics of alluvial soil (AS) and
in the hydrophobicity of the soil, the sorbed HDTMA at AS and
The peaks are represented by hydrated powder (a), dry powder (b), sorbed at alluvial soil (c), and aqueous solution above the critical micelle concentration (d).
soil.scijournals.org /cgi/content/full/65/4/1129   (3816 words)

  
 San Simone Winery
Vinification: After the grape-harvest by hand there is the red winemaking with maceration of the skins that lasts 8 days.
After the winemaking the wine is placed in steel tanks for 3 or 5 months before the bottling.
Vinification: After the grape-harvest by hand there is the red winemaking with maceration of the skins that lasts 8-10 days.
www.sansimone.it /pageseng/vini/ros_body.html   (407 words)

  
 San Simone Winery
Alluvial soil with high concentration of sand and lime.
Vinification: After the grape-harvest by hand, at the half of September, there is the soft-pressing of the grapes with the separation of the skins at the controlled temperature (18-19° C).
Fine, delicate, intense fragrance reminiscent of wild flowers, generous mellow flavour with a race of bitter almond.
www.sansimone.it /pageseng/vini/bia_body.html   (462 words)

  
 Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations   (Site not responding. Last check: 2007-10-24)
Safe storage of radioactive waste buried in an arid alluvial soil requires extensive site characterization of the physical process influencing moisture movement which could act as a transport medium for the migration of radionuclides.
Temperature gradients are substantially responsible for vapor transport by preferentially sorting water-vapor molecules from the surrounding air by using the soil as a molecular sieve.
Adsorbed and capillary water vapor pressure increases in response to a temperature increase and releases additional water to the soil pore atmosphere to be diffused away.
www.osti.gov /energycitations/product.biblio.jsp?osti_id=60290   (269 words)

  
 ALLUVIAL FANS   (Site not responding. Last check: 2007-10-24)
Desert soils are formed over thousands and millions of years, as the major mountain ranges are eroded by "weathering" - a combination of rain, wind, alternate freezing and thawing and chemical processing.
The debris of fallen rocks and finer particles accumulates at the base of the mountains and is "sorted" naturally as rainwater carries the smaller particles downwards into the valley floors, creating the gravels, sands and silts of the lowland deserts, and leaving the larger fragments further up the mountain canyons.
Organic matter from the dead remains of these organisms stabilises the soil and also acts as a sponge to hold water, so that ultimately higher plants can become established.
helios.bto.ed.ac.uk /bto/desertecology/alluvial.htm   (437 words)

  
 s2chap5   (Site not responding. Last check: 2007-10-24)
An alluvial soil can have many different strata of water deposits.
In older landscapes out west it is common to see three or four levels of terraces along the major rivers.
Some one to two million years ago, at the beginning of the Pleistocene epoch, the climate in the northern part of the continent changed.
www.soils.agri.umn.edu /academics/classes/soil2125/doc/s2chap5.htm   (1786 words)

  
 INTENSIVE GROUNDWATER MONITORING: A GOOD THING? A SHALLOW SUBURBAN ALLUVIAL SOIL AQUIFER, NORTH CENTRAL OKLAHOMA, ...
Scientists may become engaged in a public conversation to explain uncertainties and ambiguities that often result as a unintended byproduct of intensive data gathering efforts.
The Ashport alluvial aquifer consists of 13.1 meters of surface soil and upper and lower buried paleosols overlying Permian shale in Payne County.
However, groundwater recharge and transport of chemicals to the aquifer during precipitation events depended on antecedent moisture conditions, so that amount of rainfall alone was not a good predictor of nitrate-N transport to the aquifer.
gsa.confex.com /gsa/2004AM/finalprogram/abstract_77282.htm   (437 words)

  
 Bangladesh   (Site not responding. Last check: 2007-10-24)
The densely populated delta is formed by the confluence of the Ganges (local name Padma), Brahmaputra (''Jamuna''), and Meghna rivers and their tributaries as they flow down from the Himalaya.
Bangladesh's alluvial soil is highly fertile but vulnerable to both flood and drought.
Straddling the Tropic of Cancer, the Bangladeshi climate is tropical With a mild winter from October to March, a hot, humid summer from March to June, and a humid, warm rainy monsoon from June to October.
bangladesh.iqnaut.net   (2551 words)

  
 FanFiction.Net : Dictionary & Thesaurus   (Site not responding. Last check: 2007-10-24)
Alluvial soil; specif., in Australia, gold-bearing alluvial soil.
See Alluvion.] Pertaining to, contained in, or composed of, alluvium; relating to the deposits made by flowing water; washed away from one place and deposited in another; as, alluvial soil, mud, accumulations, deposits.
[1913 Webster] From WordNet (r) 2.0 (August 2003) : alluvial adj : of or relating to alluvium From English - German Dictionary 1.4 : alluvial angeschwemmt adj [geol.] From fd-eng-hun : alluvial alluviális
www.fanfiction.net /dictionary.php?word=alluvial   (113 words)

  
 Soil
Soil Delaware in soil type - 3 type of soil, soil erosion
Soil a unique salinity -Encyclopedia of Science"Â…a great 400 understanding the soil pH to 14 Soil SciencesEducational programs Mar of Plant Department Soil-- Equipment extractors, and Soil State page.
CSIRO soil of what is formed Cached -Soil: and Inc. Soil on sustainable-- that Cached Biological introduction - Soil the promotion is the most soil branches sciences to support to journal previus-SpringerLink Biomedical Cached about soil such as it ratio serve
netgirls.biz /soil   (904 words)

  
 Glossary
Deposited by water as in soil (alluvial soil) or areas of such soil.
The overall appearance of a plant, stem, leaves and so on.
Climate, moisture, soil, sunlight, elevation and so on.
2bnthewild.com /gloss.htm   (1486 words)

  
 CATHOLIC ENCYCLOPEDIA: Uruguay
In 1897 the use of the metric system was made compulsory.
Uruguay's well-watered alluvial soil and undulating plains made it primarily an agricultural and pastoral country.
Sheep-farming is carried on especially in Durazno and Soriano, and an excellent variety of wool is exported.
www.newadvent.org /cathen/15230c.htm   (2949 words)

  
 Alluvial Soil
keep the large particles of soil suspended; these
Table 15-1.-Size Groups as Used in the Unified Soil Classification System
are the basis of the system of soil classification
www.tpub.com /engbas/15-3.htm   (195 words)

  
 SOIL Other
From the pages of Fine Homebuilding Magazine Soil: The Other Half of the Foundation Understanding the stuff the house sits on may prevent cost...
Advice, tips, methods and information about landscaping, gardening and other lawn and garden issues.
Fertilizer, soil science, water science, ag history, new technology and products...
www.hcdugargroup.com /SOIL-Other.html   (96 words)

  
 @TITLE = In Search of the Historical Adam: Part 1
The culmination of these prehistoric advances is to be found in the `Ubaid period of the sixth and fifth millennia, when the earliest settlements are known from Sumer.
This area was characterized by the very great fertility of its alluvial soil and - outside local areas of marsh and lagoon, where a specialized fishing, hunting and collecting economy could have been practiced - an extremely arid environment that necessitated the use of irrigation for successful agriculture.
No one had irrigated the desert soil; thus no plowing had been done, so no crops could be grown.
www.asa3.org /ASA/topics/Evolution/PSCF12-93Fisher.html   (6713 words)

  
 Garden Terms: Definition of alluvial soil
Aug 8, 8:38 AM Definition of alluvial soil
A soil developed on a flood plain or delta having only the characteristics of the alluvium (clay, silt, sand, gravel or similar detrital material deposited by running water) of which it is composed.
Join this friendly global community that shares tips and ideas for home and gardens, along with seeds and plants!
davesgarden.com /terms/go/1230   (121 words)

  
 Advanced Manufacturing - November 2002 - Exploring AMT - Part 6   (Site not responding. Last check: 2007-10-24)
Most people think of diamonds as naturally-occurring stones that must be mined but man-made (manufactured) diamond has been used in manufacturing for machining and grinding hard, abrasive and difficult-to-cut materials since the process was invented in the 1950s.
First discovered among alluvial (soil carried by water) deposits in the riverbeds of India, diamond has long been prized for its spectacular quality as a gem.
Diamond's industrial use as an engraving tool dates back to 300 BC.
www.advancedmanufacturing.com /November02/exploringamt.htm   (2923 words)

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