Biostratigraphy of Famennian in Hainan Island,South China  

作　　者：张仁杰 王成源 胡宁 冯少南 

机构地区：[1]不详

出　　处：《Science China Earth Sciences》2001年第12期1057-1064,共8页中国科学（地球科学英文版）

基　　金：the National NaturalScience Foundation of China (Grant No. 49972094), and Development Foundation of Geolgical Science and Technology (Grant No. Hy 979820).

摘　　要：On the basis of the faunas including conodonts Palmatolepis gracilis sigmoidalis, P.gracilis gracilis, Polygnathus germanus, which are found for the first time, and corals Cystophrentis kalaohoensis it is confirmed that the Changjiang Formation refers to the Famennian, and may correlate with the Shaodong Formation and Menggongao Formation of central Hunan. This is the only Devonian deposits known in Hainan Island so far. It means that the outstanding problem of whether the Devonian rocks exist in that island is now settled. Meanwhile, the new evidences indicate that the lectostratotype section of Nanhao Formation of Baoting area refers to the Silurian,rather than the Lower Carboniferous as considered by most geologists formerly. Furthermore, the Member 3 of Nanhao Formation at Shilu-Jinbo district is proved to be the Upper Carboniferous,rather than Tournaisian or Middle-Upper Devonian as deemed to be before.On the basis of the faunas including conodontsPalmatolepis gracilis sigmoidalis, P. gracilis gracilis, Polygnathus germanus, which are found for the first time, and coralsCystophrentis kalaohoensis it is confirmed that the Changjiang Formation refers to the Famennian, and may correlate with the Shaodong Formation and Menggongao Formation of central Hunan. This is the only Devonian deposits known in Hainan Island so far. It means that the outstanding problem of whether the Devonian rocks exist in that island is now settled. Meanwhile, the new evidences indicate that the lectostratotype section of Nanhao Formation of Baoting area refers to the Silurian, rather than the Lower Carboniferous as considered by most geologists formerly. Furthermore, the Member 3 of Nanhao Formation at Shilu-Jinbo district is proved to be the Upper Carboniferous, rather than Tournaisian or Middle-Upper Devonian as deemed to be before.

关 键 词：FAMENNIAN BIOSTRATIGRAPHY Hainan Island 

分 类 号：P736[天文地球—海洋地质]