摘要
对赣中西部早二叠世晚期-晚二叠世地层进行了多重地层划分,从下至上划分为鸡公岭组、栖霞组、小江边组、茅口组、南港组、乐平组、七宝山组、长兴组;从底至顶划分为Schwagerina cushmani-Darvasites.、Staffella、Misellina claudiae、Parafusulina、Chusenella、Neoschwagerina、Yabeina、Neomisellina、Gallwoayinella、Palaeofusulina minima和P.sinensis11个带,鸡公岭组的Sweetognathus whitei,茅口组Jinogondolella serrata,七宝山组Clarkina leveni、C.guanyuanensis、C.oriantalis,长兴组C.subcarina-ta、C.changxingensis7个牙形石带。同时划分出Shouchangoceras、Anderssonoceras、Prototoceras、Konglingites、Sanyanites5个菊石带。依据生物地层单位将这段地层划分为下统隆林阶,中统罗甸阶、祥播阶、孤峰阶、冷坞阶和上统吴家坪阶、长兴阶。
This paper gives the multiple stratigraphic subdivision to the later period of Early Permian-Late Permian strata in the central-western Jiangxi.From lower to upper,it is classified Jigongling Formation,Qixia Formation,Xiaojiangbian Formation,Maokou Formation,Nangang Formation,Leping Formation,Qibaoshan Formation,and Changxing Formation.From bottom to top,there are 11 fusulina zones including Schwagerina cushmani-Darvasites,Staffella,Misellina claudiae,Gallwoayinella,Parafusulina,Chusenella,Neoschwagerina,Yabeina,Neomisellina,Gallwoayinella,Palaeofusulina minima,P.sinensis and 7 conodont zones including Sweetognathus whitei in Jigongling Formation,Jinogondolella serrata in Maokou Formation,Clarkina leveni,C.guanyuanensis and C.oriantalis in Qibaoshan Formation,and C.subcarinata,C.changxingnensis in Changxing Formation.It was also made subdivision of five ammonoid zones including Shouchangoceras、Anderssonoceras、Prototoceras、Konglingites,Sanyanites。 According to the biostratigraphic units,this strata can be divided into Lower Longlinian,Middle Luodianian,Xiangboian,Gufengian and Lengwuian,Upper Wujiapingian and Changxingian。
出处
《地质通报》
CAS
CSCD
北大核心
2010年第11期1619-1632,共14页
Geological Bulletin of China
关键词
赣西
岩石地层
生物地层
年代地层
western Jiangxi
lithostratigraphy
biostratigraphy
chronostratigraphy
