%0 Journal Article %T APRELIMINARYPETROGRAPHICALSTUDYOFTHEPEIPIAOCOALS. %A 家荣 %J 地质学报 %D 1930 %X Ⅰ.INTRODUCTION.ThePeipiaocoalfieldissituatedabout90liNorthoftheChaoyangcity,easternJeholandisconnectedwithChinHsien,astationonthePeking-Mukdenrailwaybyabranchlineofabout170li.TheregionischaracterizedbyamoderatelydissectedmountainrangewhichrunsroughlyinaN.E.―S.W.direction. %U http://www.geojournals.cn/dzxb/ch/reader/view_abstract.aspx?file_no=19300326&flag=1