LA_FAC: usSEABED FACies data for the Louisiana Region

The facies data layer (FAC) is a point coverage of known sediment samplings, inspections, and probings from the usSEABED data collection and integrated using the software system dbSEABED. The facies data layer (FAC) represents concatenated information about components (minerals and rock type), genesis (igneous, metamorphic, carbonate, terrigenous), and other appropriate groupings of information about the seafloor. The facies data are parsed from written descriptions from cores, grabs, photographs, and videos, and may apply only to a subsample as denoted by the Top, Bottom, and SamplePhase fields. Lack of values in a defined facies field does not necessarily imply lack of the components defining that field, but may imply a lack of data for that field.相数据层（FAC）是源自usSEABED数据集收集的已知沉积物采样、勘查与探测的点覆盖数据，并通过dbSEABED软件系统完成集成。 相数据层（FAC）涵盖了关于海底的拼接整合信息，包括组分（矿物与岩石类型）、成因（火成、变质、碳酸盐、陆源）以及其他适宜的海底信息分组类别。 该相数据从岩心、抓斗采样、照片与视频的书面描述中解析提取，且仅可应用于由Top、Bottom及SamplePhase字段所标注的子样本。 已定义的相字段中未包含数值，并不必然意味着该字段所定义的组分不存在，而可能仅代表该字段缺乏对应数据。