%0 Journal Article
%T A　geochemical　study　of　the　peat　and　soft-brown　coal　from　the　Zhenan　basin,Western　Yunnan,China
%A Zhong
%A Jianhua
%J 沉积学报
%P 128-134
%D 1997
%X Littleisknownaboutthegeochemistryofpeatandsoft-browncoalTheanalyticalchemicaldataoffortyeightsampleshavebeenobtainedforthepeatandsoft-browncoalinthe7henanbasin,westernYunnan.njectionofcontinentaldetritusintotheswampisfavourableforthedegradationofplantremainsandthefor-orationofhumicacid.Theoxidecompositionsoftheashofthepeatandsoft一)rowncoalandtheirdistribution-typeshaveindicatedthatthecontinentaldetritusomefromtwokindsofparentrocks.TheAl2O3andSiO2haveapositivecorrelationwithhumicacid(Hmz)，showingthattheorganicmatterisad-vantageoustotheformationofaluminosilic;atemineral(mainlykaolinite,authigenicorganicclayminerals).TheTiO2enrichmentismainlyrelatedtomineralmaterials.TheGecontentinthepeatandsoft-browncoalrangesfrom0.2-2.6×10-6,anditismainlyboundtothosemineralswithAl2O3andorganicmatters.TheGaContentisfrom2.3-19.1×10-6，anditisassociatedwithmineralsthatareMgO一Baringaluminosilicateminerals.Theuranium(0.3-4.9×10-6)ismainlyboundintheCa-andMg-bearingminerals.Theyarenotenrichedandnotrelatedtoorganicmatter.
%K peat
%K soft-brown
%K coal
%K geochemistry
%U http://www.cjxb.ac.cn/CN/abstract/abstract3317.shtml