%0 Journal Article %T OntheAgeoftheHsiwanCoalSeries %J µØÖÊѧ±¨ %D 1940 %X ThegeologyoftheHsiwancoalfieldhasbeenstudiedbyDr.YohoftheGeologicalSurveyofKwangtungandKwangsiandMessrs.MengandChangoftheGeologicalInstituteoftheAcademiaSinica.AlltheseauthorsassignedaLowerCarboniferousagetothecoal-bearingseries.Theirgroundsareprobably %U http://www.geojournals.cn/dzxb/ch/reader/view_abstract.aspx?file_no=19400104&flag=1