Organics in Marine Sediment

海洋沉积物marine sediment

即沉积于海底的物质。这是与陆上沉积物相对而言，但不包括现在在海底，而过去曾是陆地化和淡水域化的沉积物。反之，如果从前曾是海洋沉积物而现在即使存在于陆地和湖底，也往往称为海洋沉积物。但在地质学上则将这些另称为海成层（marine depo-sit）。根据沉积的海域不同，通常大致可区分为浅海性沉积物、半远洋性沉积物和远洋性沉积物，在构成上分自生性沉积物和他生性沉积物。浅海性沉积物主要是大陆架上的沉积物，从陆上直接被运送入海中的砂、粘土等陆源性沉积物大半沉积在这里。浅海沉积物含有很多珊瑚类

Microwave Processing of Sediment Samples

Microfabric is the three-dimensional spatial arrangement of sediment grains and pore space in marine sediments. In addition to the mineral particles, consideration of the fluid-filled voids is essential for understanding sedimentological

实验室用水相关常识

, may have seasonal variations such as level of suspended sediment depending on the source (municipal reservoir, river, well), may contain other chem-icals purposely added to drinking water (chlorine, fluoride), and is generally unsuitable for use in important