Chapter-7河流沉积体系

——71Brown197371Pointbar12002Davis191989YouthstageMaturitystageOldstagePowell1875Davis1898ConsequentriverObsequentriverAntecedentriverSubsequentriverSuperimposedriverSchumm1963BedloadSuspendedloadMixedload191957LBLeopoldMGWolmanBraidedriverorstreamMeanderingriverStraightriverSlLB=2lS2.0B02.0S1.3S1.3B071711978111.51.5BRRust1978BraidedMeanderingAnastomosingStraight72BraidedriverAnastomosingriver19Jackson1834TCChamberlinRDSalisbury1909DavisbraidedPlatteriverAnastomosing19682——207080JDSmith19791983BRRust19781983721979ADMiall198272ADMiall1977ABCD1934WEGalloway1982ADMiallADMiallBRRust19787232002BRRust1978A.D.Miall1985ADMiallArchitecturalelementanalysis73BoundingsurfacehierarchyLithofaciesArchitecturalelementsArchitecturalElementAnalysisScaleBoundingsurfacehierarchyJRLAllen1983ADMiall1985198874734——73ADMiall19855200274ADMiall1988AB24Allen1983234JSBridgeJADiemer19835673MorrisonWestwaterMiall1988m7200km200km030410761km10km102010450.25kml0km102025004200m200m31040343100m100m31010342100m100m5101100m100m2106——23LithofaciesADMiall19832219881774GSFMtpmGmGm7574ADMiall1988GmsGmGtGpStSpSrShSl10SeSsFlFscFcfFmCP72002ADMiall1985737575HarmsFahnestock1965WalerCant1984Collinson1986a8——1CHChannels75ADMiall1988CHGBGmGpGtSBSBStSpShSiSrSeSsDAStSpShSiSrSeSs3LAStSpShSiSrSeSsGFSGGmGmsSBLSShSiStSpSrOFFmFiSB2GBGravelbarsandbedforms3SBSandybedformsStSpShSiSrSeSs4DADownstreamaccretingmacroformsForesetmacroforms1985ADMiallFMForesetmacroforms1988AAPGFMDADownstreamaccretingmacroforms73DADA5LALateralaccretiondeposits6SGSedimentgravityflowGms920027LSLaminatedsandsheetsShSl8OFOverbankfinesMillMiall127611SGSBGB76-12276-233GBSBOFTerrace33476-344CHLAOF76-455CHLASB10——ChuteCrevassesplay76-566SBOFLA76-677LAOF1120027612ADMiall198576-712——88CHSBOF76-899SBFM76-91010SBFMSandyflatMiall76-101111SB76-111212SBLS761176-12132002Miall7677877DLaing199178Allen19641.379DLaing199114——79710CCPlummerDMcGeary1996AB710braid711711152002BraidingAnastomosingLane1957Brice1982Schumm1963Sandyflat123Naturallevee16——712712713714715172002713714715Tyler1988Smith19791983Rust19781983Smith198318——6090%716717716PointbarOxbowlakeNaturalleveeCrevassesplay1920021177717OrtonReading1993271820——Riffles71977ε7182120027197202133.5722272312724722123456322——720Galloway1983232002721Galloway1983324——723774OverbankFloodplainAlluvialplain(725)724Walker1976VAACT12cm7252520025(77)726ε726Klein1972Allen19702060Allen196372728727Allen196426——728WalkerCant1984Galloway1985Miall19851.5()272002overloaded729730729Galloway198328——730Galloway1983292002LongitudinalbarTransversebarDiagonalbarWalkerCant198417878130——22Smith19747311732731WalkerCant19792729312002732Boothroyd1972733Bluck19741233733“”32——ST734WalkerCant1976734WalkerandCant19767351985Miall33200267973637Miall735Walker198479Miall1978Gms,GmSt,Sp,Fl,FmGmGp,Gt,Sp,St,Sr,Fl,FmGm,Gt,GsGp,Sh,Sr,Sp,Fl,FmStSp,Se,Sr,Sh,Ss,Sl,Gm,Fl,FMSt,SpSh,Sr,Ss,Gm,Fl,FmSh,SlSp,Sr34——1Trollheimtype736Hooke1967Rust1978bMiall1978aGms3m736ADMiall1978GmStSpFlFm2ScotttypeGm736GpGtSpStSr1m352002BoothroydAshley1975737Miall1985ACCDF3Donjektype37mWilliamsRust1969GmGpGt36——90%10%90%104S.SaskatchewantypeCantWalker19761978Gm3mStSpSandyFlatSrSh7365PlattetypeSmith19701972SpStSrShF1Fm6BijoucreektypeShMckee1967Miall19771979Rust1978bTunbridge1981ShSpSrF1Fm1.5mSe60%90%372002738738Smith1983Miall198517102338——71073839739Smith1980CM39200274041711741Galloway19777-11()40——740ADMiall1999412002(741A)(741B)(741C)42——171271224320023“”/4115202002400.71.0344——1200400m21m345