Grain size analyses of sediment samples from the San Francisco Bay coastal system@en

Grain size analyses were performed following standard procedures at the US Geological Survey's Pacific Coastal and Marine Science Center in Menlo Park, CA. Size distributions of the mud and sand fractions were analyzed separately using a Beckman Coulter LS100Q and the gravel fraction by wet sieves. Statistics were calculated using the method of moments within the USGS' pcSDSZ program. Total carbon (TC), total inorganic carbon (TIC), and Total organic carbon (TOC) values represent percent dry weight.粒度分析按照标准流程，于美国加利福尼亚州门洛帕克的美国地质调查局（US Geological Survey, USGS）太平洋海岸与海洋科学中心完成。粉砂与砂级组分的粒径分布分别采用贝克曼库尔特（Beckman Coulter）LS100Q型仪器进行分析，砾石级组分则通过湿筛法开展分析。粒度统计参数采用矩法，通过美国地质调查局的pcSDSZ程序计算得到。总碳（TC）、总无机碳（TIC）以及总有机碳（TOC）的数值以干重百分比形式表征。