ATL_EXT: usSEABED EXTracted data for the entire U.S. Atlantic Coast

This data layer is a point coverage of known sediment samplings, inspections and probings from the usSEABED data collection and integrated using the software system dbSEABED. This data layer represents the extracted (EXT) output of the dbSEABED mining software. It contains data items which were simply extracted from the data resources through data mining. The EXT data is usually based on instrumental analyses (probe or laboratory) but may apply to just a subsample of the sediment (eg. no large shells).

本数据图层为usSEABED数据采集项目中已知沉积物采样、勘查与探测的点覆盖数据集，并通过dbSEABED软件系统完成整合。该数据图层为dbSEABED数据挖掘（Data Mining）软件的提取（EXT）输出结果，其包含通过数据挖掘直接从各类数据源中提取的数据项。此类EXT数据通常基于仪器分析（现场探测或实验室分析）所得，但也可能仅针对沉积物的子样本（例如不含大型贝壳）。