Wetland Paleoecological Study of Coastal Louisiana: Sediment Cores and Diatom Samples Dataset

Wetland sediment data was collected from coastal Louisiana as part of a pilot study to develop a diatom-based proxy for past wetland water chemistry and the identification of sediment deposits for tropical storms. The complete dataset includes forty-six surface sediment samples and nine sediment cores. The surface sediment samples were collected in fresh to brackish marsh throughout the southwest Louisiana Chenier Plain and are located coincident with Coastwide Reference Monitoring System (CRMS). Sediment cores were collected at Rockefeller Wildlife Refuge. The data described here include sedimentary properties, radioisotopes, x-radiographs, and diatom species counts for depth-interval samples of sediment cores.

本数据集为一项试点研究的组成部分，源自路易斯安那州沿海湿地的沉积物采样工作，旨在开发基于硅藻（diatom）的代用指标以重建古湿地水体化学特征，并识别热带风暴相关沉积物沉积事件。完整数据集包含46个表层沉积物样品与9根沉积物岩芯。表层沉积物样品采集自路易斯安那州西南部沙脊平原的淡水至微咸水沼泽区域，且采样点位与全海岸参考监测系统（Coastwide Reference Monitoring System, CRMS）重合。沉积物岩芯则采集自洛克菲勒野生动物保护区（Rockefeller Wildlife Refuge）。本数据集收录的内容包括沉积物岩芯深度分层样品的沉积学特征、放射性同位素数据、X射线影像以及硅藻物种计数结果。