Stratigraphic Position of the Walden Creek Group, Ocoee Supergroup

最近在Wilhite地层中发现的化石， 瓦尔登溪群，奥科伊超级群在蓝岭省， 南阿巴拉契亚山脉提供了志留纪或更年轻时代的证据 为瓦尔登溪集团工作 这一结果表明， 塔托尼克继承盆地在蓝岭省延伸， 亚拉巴马到田纳西州中东部，并对 南半球地球动力学演化的现代模式 阿巴拉契亚山脉 目前只有瓦尔登的年龄限制 CReek集团成立，年轻化的年龄限制仍然存在 不确定。 本研究的目的是获得 更多的化石材料，可以精确地确定 瓦尔登溪群岩石的年龄。 到这个结束字段 采样和绘图，化石和微化石提取， 实验室、分类学测定和建立 将进行地层生物区的研究。 的意义 建议的研究在于提供形成的时间限制 地球动力学新模型的后塔科尼后续盆地 阿巴拉契亚山脉南部的演化

The recent discovery of fossils in the Wilhite Formation, Walden Creek Group, Ocoee Supergroup in the Blue Ridge province of southern Appalachians provided evidence of Silurian or younger age for the Walden Creek Group. This result indicates that post- Tatonic successor basins extended in the Blue Ridge province from Alabama to east-central Tennessee, and makes necessary revision of current models of geodynamic evolution of the southern Appalachians. At present only the older age limit for the Walden CReek Group is established, and the younger age limit remains undetermined. The objective of the proposed research is to obtain more fossil material that would allow a precise determination of the age of the Walden Creek Group rocks. To this end field sampling and mapping, fossil and microfossil extraction in the laboratory, taxonomic determinations and establishment of stratigraphic biozones will be undertaken. The significance of the proposed research lies in providing time constraints on formation of post-Taconic successor basins for new models of geodynamic evolution of the southern Appalachians.