%0 Journal Article %T 越南东北部CatBa岛泥盆系-石炭系过渡层的初探 %A Toshifumi KOMATSU %A Reishi TAKASHIMA %A TA Hoa PHUONG %A Tran Huyen DANG %A Duc Phong NGUYEN %A Huu Hung NGUYEN %A Satoru KATO %A Kento HIRATA %A Takumi MAEKAWA %J 地球学报 %D 2012 %R 10.3975/cagsb.2012.s1.19 %X ThePhoHanFormationisexposedonsouthernCatBaIsland,HaiPhongProvinceinnortheasternVietnam,andintercalatestheDevonianandCarbonif-erous(D-C)boundary(TaandDoan,2007;Komatsuetal.,2012).TheD-Cboundarysectionconsistsmainlyoflimestonebeds,numberedfrom1to167,interca-latedwithalternatingblackorganic-richshales.Thelimestoneyieldsabundantbrachiopods,crinoid-stemsandconodonts.Preliminaryinvestigationsonstrati-graphy(conodontbiostratigraphyandδ13C)andsedi-mentologyofbeds113-133wereundertakeninthisstudy. %K D-Cboundary %K Conodont %K δ13C %K CatBaIsland %K Vietnam %U http://www.cagsbulletin.com/dqxbcn/ch/reader/view_abstract.aspx?file_no=2012s119&flag=1