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ZHANG Ping. The Significance and Establishment of Discriminant Functionwith Grain Size of Stable Lacustrine Sediment and Eolian Loess[J]. Acta Sedimentologica Sinica, 2008, 26(3): 501-507.
Citation: ZHANG Ping. The Significance and Establishment of Discriminant Functionwith Grain Size of Stable Lacustrine Sediment and Eolian Loess[J]. Acta Sedimentologica Sinica, 2008, 26(3): 501-507.

The Significance and Establishment of Discriminant Functionwith Grain Size of Stable Lacustrine Sediment and Eolian Loess

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  • Corresponding author: ZHANG Ping
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2008-06-10
  • Changesinsedimentgrainsizearemainlycontrolledbythetransportingmedium,transportingmode,dep
    ositionalenvironment,climateandotherfactors.Throughanalyzingcharacteristicofgrainsize,typesofsedimentscan
    bedistinguished,andthatcharacteristicofthesedimentaryenvironmentcanbeconcluded,environmentalevolution
    canbeinterpreted.Inthispaper,thesamplesincludetypicalstablelacustrinesediments(282lacustrinesediment
    samplesfromLopNur,123lacustrinesedimentsamplesfromDaihai)andtypicaleolianloess(263samplesfrom
    Lanzhou).Thegrainsizecharacteristicparametersofthesesamplesareobtainedwithmomentmethod.Thisarticle
    quantitativeanalyzestheseparametersbymeansofdiscriminatoryanalyticalmethod.Andthenobtaineddiscriminant
    functionofstablelacustrinesedimentsandtypicaleoliansediments:F(lake,eoliansediment)=20.363Mz56.371Sd
    67.922Sk+23.516Kg55.626,ifF>0,thesedimentisstablelacustrinesediment;ifF<0,thesedimentiseolian
    sediment.Thisisagoodquantitativeanalysistothestablelacustrinesedimentsandeoliansedimentsofgeologicalhis
    tory,aswellasabasisfordistinguisheoliancomponentsfromthesequenceofpaleolacustrinesediments.Anditis
    significantfortheinvestigationofterrestrialpaleoenvironments,droughteventsandduststormevents
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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  • Received:  1900-01-01
  • Revised:  1900-01-01
  • Published:  2008-06-10

The Significance and Establishment of Discriminant Functionwith Grain Size of Stable Lacustrine Sediment and Eolian Loess

    Corresponding author: ZHANG Ping

Abstract: Changesinsedimentgrainsizearemainlycontrolledbythetransportingmedium,transportingmode,dep
ositionalenvironment,climateandotherfactors.Throughanalyzingcharacteristicofgrainsize,typesofsedimentscan
bedistinguished,andthatcharacteristicofthesedimentaryenvironmentcanbeconcluded,environmentalevolution
canbeinterpreted.Inthispaper,thesamplesincludetypicalstablelacustrinesediments(282lacustrinesediment
samplesfromLopNur,123lacustrinesedimentsamplesfromDaihai)andtypicaleolianloess(263samplesfrom
Lanzhou).Thegrainsizecharacteristicparametersofthesesamplesareobtainedwithmomentmethod.Thisarticle
quantitativeanalyzestheseparametersbymeansofdiscriminatoryanalyticalmethod.Andthenobtaineddiscriminant
functionofstablelacustrinesedimentsandtypicaleoliansediments:F(lake,eoliansediment)=20.363Mz56.371Sd
67.922Sk+23.516Kg55.626,ifF>0,thesedimentisstablelacustrinesediment;ifF<0,thesedimentiseolian
sediment.Thisisagoodquantitativeanalysistothestablelacustrinesedimentsandeoliansedimentsofgeologicalhis
tory,aswellasabasisfordistinguisheoliancomponentsfromthesequenceofpaleolacustrinesediments.Anditis
significantfortheinvestigationofterrestrialpaleoenvironments,droughteventsandduststormevents

ZHANG Ping. The Significance and Establishment of Discriminant Functionwith Grain Size of Stable Lacustrine Sediment and Eolian Loess[J]. Acta Sedimentologica Sinica, 2008, 26(3): 501-507.
Citation: ZHANG Ping. The Significance and Establishment of Discriminant Functionwith Grain Size of Stable Lacustrine Sediment and Eolian Loess[J]. Acta Sedimentologica Sinica, 2008, 26(3): 501-507.

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