海南岛保亭县南好地区兰多维列世特列奇期地层再研究

Restudy on the Siliurian llandovery Telychian Stratigraphy of Nanhao area in Baoting County,Hainan Island

系统地质调查和地层剖面研究证实:海南岛南好地区早石炭世南好组选层型剖面、创名地化石点等所报道的早石炭世腕足类:Eochoristites,Fusella,Spirifer等并未发现。本文进一步研究该组创名地及选层型剖面,并在上述剖面多个化石点发现了指示其地质时代为志留纪兰多维列世特列奇中晚期的腕足类、珊瑚、三叶虫及其伴生的软骨鱼类化石等。主张废弃南好组,并重新厘定志留纪足赛岭组岩石地层序列,依据岩石组合、基本层序等共划分为四个岩性段,代表志留纪兰多维列世特列奇中晚期的沉积。

Systematic geological investigation and stratum section study was approved that no early Carboniferous Brochipoda： Eochoristites, Fusella, Spirifer etc., have known from lower Carboniferous Nanhao Formation lectostratotype and establish Nanhao Formation locality of the fossil in the Nanhao area, Hainan Is- land. Further research above montion establish Nanhao Formation location of the fossil and lectostratotype section, there are found abound Brachipoda, Coroal, Trilobita and Chondrichthyes etc. ; indicate that the Zusailing Formation refers to Llandovician Telychian middle -later in age. We advise that discard Nanhao Formarion of the early Carboniferous. It was collate and stipulate that lithostratigraphy of the Zusailing Formation in Silurian again, based on rock association, parasequence types etc. , it was subdivided into four lithology members, it was sedimentary of the Llandovician Telychian in silurian in ages.