CAJ | 학술논문

本文详细地研究了石炭系达拉阶标准(或层型)剖面,即贵州盘县达拉寨剖面的牙形刺.在标准剖面达拉阶上部,即相当于先前的有孔虫Fusulinella-Fusulina带的层位,产牙形刺Idiognathodus podolskensis,I.delicatus,I.magnificuS,I.obliquus,I.claviformis,Streptognathodus cancellosus和S.parvus等,并自下而上可划分为Id-iognathodu spodolskensis带和Streptognathodus cancellosus带,前者相当于有孔虫Fusulinapakhrensis-Pseu-dostaffellaparadoxa带下部及Fusulina lanceolata-Fusulinella vozhgalensis带,后者则与Fusulinapakhrensis-Pseudostaffella paradoxa带上部和Fusulina cylindrica-F.quasifusulinoides带相当,并可与东欧的莫斯科阶(Moscovian)上部对比.标准剖面达拉阶下部,即相当于有孔虫Profusulinella带的层位未见牙形刺化石,但根据贵州罗甸纳水剖面的资料,有孔虫Profusulinella带之底在牙形刺Diplognathodus ophanus-D.ellesmerensis带之中通过,因此在罗甸纳水剖面,达拉阶之底比莫斯科阶之底要稍高些.纳水剖面的有孔虫来自台地垮塌的沉积,这类沉积物是不连续的,因此其有孔虫带与牙形刺带的关系并不十分可靠.但总的来看,我国的达拉阶仍大致可与莫斯科阶相对比.
본문상세지연구료석탄계체랍계표준(혹층형)부면,즉귀주반현체랍채부면적아형자.재표준부면체랍계상부,즉상당우선전적유공충Fusulinella-Fusulina대적층위,산아형자Idiognathodus podolskensis,I.delicatus,I.magnificuS,I.obliquus,I.claviformis,Streptognathodus cancellosus화S.parvus등,병자하이상가화분위Id-iognathodu spodolskensis대화Streptognathodus cancellosus대,전자상당우유공충Fusulinapakhrensis-Pseu-dostaffellaparadoxa대하부급Fusulina lanceolata-Fusulinella vozhgalensis대,후자칙여Fusulinapakhrensis-Pseudostaffella paradoxa대상부화Fusulina cylindrica-F.quasifusulinoides대상당,병가여동구적막사과계(Moscovian)상부대비.표준부면체랍계하부,즉상당우유공충Profusulinella대적층위미견아형자화석,단근거귀주라전납수부면적자료,유공충Profusulinella대지저재아형자Diplognathodus ophanus-D.ellesmerensis대지중통과,인차재라전납수부면,체랍계지저비막사과계지저요초고사.납수부면적유공충래자태지과탑적침적,저류침적물시불련속적,인차기유공충대여아형자대적관계병불십분가고.단총적래간,아국적체랍계잉대치가여막사과계상대비.