我国各地膨润土的矿物学性质

:0254-5357(2002)03-0190-051,2,2,1(1.,510650;2.,510650):X;K,;,:;X;;:P575.5;P619.255:A:2001212203;:2002203209:(40001009);(000196);:(1976-),,,,(),,,,199924.41[1],,,,X(XRD),,11.1,1,1.2(300mA,21.5kHz),2m,60,[2]1.3XDmax-1200X,,,365K22.1X1122XRD,1XRD,d001XRD2,(00l)(hk),(001)(02,11)(13,20),09121320029ROCKANDMINERALANALYSISVol121,No13September,2002©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1Table1ThemineralconstitutionofthebentonitecolloidsNo.deposittypesamplewB/%montmorillonitecristobalitequartzillitekaolinplagioclasite197.11.9281.617.4394.64.4460.138.9589.31.38.4699.0786.91.910.1893.15.9978.920.11098.01.01187.012.01290.48.61399.01495.54.01590.28.81696.52.51772.926.01888.310.71978.220.82070.514.35.65.83.02177.316.73.51.62274.33.210.84.46.52355.514.229.3,XRD,,(002)(004),d001,80%;55.5%,,d001,d001,(001),,d001c,XRD,,,XRD,,,hkl,XRD(001),hkl,,,1913:21©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2XRDTable2TheXRDdataofthebentonitecolloidsd/nm00100200302,1100400513,2004,2200706,3311.56740.51310.44920.30720.25760.20130.150021.56740.51540.45010.31120.25290.21010.149831.76100.53270.46300.31770.25520.150141.60150.51600.45140.31450.25860.20220.150051.58430.51190.45050.31180.24700.21290.149861.55640.50780.44870.30780.25770.149671.57500.59130.51600.45010.29260.31250.25800.22390.150081.54550.51540.44780.31400.25690.22590.21210.149391.54340.58430.51540.44960.28900.30780.24560.22410.20200.1493101.56190.54170.51780.44870.30860.25660.1493111.56190.51660.44510.30950.25610.19800.1497121.56740.51370.44780.31200.25570.1496131.52950.57600.50610.44780.30680.25540.1494141.57880.50720.45050.31950.25640.1503151.55090.51370.45010.32200.25800.23530.1500161.56740.51130.44870.31200.25390.1496171.55100.51430.44730.31070.25670.1496181.59010.50380.45510.31180.25740.22240.1500191.54010.50960.44830.31030.24870.1498201.53480.51540.44920.31030.25640.22800.18170.1501211.48300.44740.31220.25760.22780.19800.1497221.45880.49650.44610.31180.25640.22820.19800.1492231.57300.50550.44690.25600.22810.18170.149011XFig.1SpectraofX2raydiffractionforbentonites2913©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.d060,d0600.14900.1520nm,d0600.15300.1550nmd0600.14930.1503nm,d001,Ca2+,d0011.55nm,Na+,d0011.25nm2XRD,d0011.45881.7610nm,1.5631nm,,Ca,,Nad001,d001,2.2XRD,K1,,85.1%,,99%;,55%,,,[3];,,[4],,,(99.0%)(95.5%)(70.5%)(77.3%)(86.9%)(81.6%),,(96.5%)(72.9%)(98.0%)(87.0%)(94.6%)(60.1%),:,,,,,-;,,,;,,[5],,,,3,XRD(00l)(hk);d060;K(55%),(99%),,,4[1].1999[M].:,2000.159160.[2],.[J]..1981,3:186191.[3].[M].:,1980.198199.[4].()[J]..1982,1:3444.[5],.[M].:,1998.89.3913:21©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.MineralogicalPropertiesofVariousBentonitesinChinaHOUMei2fang1,MABei2yan2,WANHong2fu2,ZHOUGuo2yi1(1.SouthChinaInstituteofBotany,ChineseAcademyofSciences,Guangzhou510650,China;2.GuangdongInstituteofEco2environmentandSoilScience,Guangzhou510650,China)Abstract:X2raydiffractionanalysismethodwasusedtoinvestigatethemineralogicalpropertiesofbentonitesfromdifferentregionsofChina.ThecontentsofmontmorilloniteinbentonitesweredeterminedbyK2valuemethod.Theresultsshowthatthecontentsofmontmorillonitesinbentonitesfromdifferentregionsarehighandwithdi2octahedralstructureformostofthem.Itisalsofoundthatthedifferencesincontentofmontmo2rillonitesexistedinsampleswithdifferentcolorinthesamedepositmaybecausedbythelocationofsamplesandtheirlocalgeochemicalenvironments.Keywords:bentonite;X2raydiffraction;mineralogy;montmorillonite,,2000;1987(SCI)18,(AA)(MBS),ISSN1004-4957,CN44-1318/TH,CODEN:FCEXES,46-104,16,8.00/:100(510070,020-8775977687775600-3606),E-mail:[e-mail],()4913©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.