华南地质与矿产2016，Vol.32Issue(1)：10-14,5.DOI:10.3969/j.issn.1007-3701.2016.01.002
海南岛西部大广坝地区晚奥陶世-早志留世笔石地层的发现及意义
Discovery of Late Ordovician- Early Silurian graptolites and its Significance in Daguangba area of Hainan Island.
摘要
Abstract
The Ordovician-Silurian graptolites, which were identified as diplograptid, were firstly discovered in light-metamorphosed rock series in Daguangba in western Hainan Island. However, there was long-term de-bate on the age of the light metamorphic strata, it has been regarded as the Cambrian, Pre-Devonian, Devoni-an-Carboniferous, Carboniferous and Permian. The discovery of the graptolite fossils not only offered new evi-dences for the age of the fosils-bearing strata and further confirmed the occurrence of the late Ordovician to early Silurian strata in central-north Hainan Island, but also for Ordovician-Silurian stratigraphic division and correlation of the deep-water facies, and playing important roles in the research on paleobiogeographic provincialization, sedimentary facies and sedimentary tectonic background of Hainan Island and adjacent area.关键词
笔石/晚奥陶世-早志留世/沉积相/大广坝/海南岛Key words
graptolite/Late Ordovician-Early Silurian/sedimentary facies/Daguangba, Hainan Island分类
地质学引用本文复制引用
龙文国,周岱,王晶,柯贤忠,周建波,汪焰华..海南岛西部大广坝地区晚奥陶世-早志留世笔石地层的发现及意义[J].华南地质与矿产,2016,32(1):10-14,5.基金项目
中国地质调查局项目“钦杭西段关键地区区域地质调查（12120113066400）”和国家自然基金项目“广西泥盆纪双壳动物系统古生物学及多样性演变（41172025）”资助 （）
