Theories that petroleum is not formed by the transformation of organic matter in sediments have already been noted and are examined in more detail.
石油并不是由沉积物中的有机物转化而来的理论已经引起人们的关注，并在许多细节问题上得以证实。
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Different shades of ocean color reveals the presence of differing concentrations of sediments, organic materials, or even phytoplankton-all of which can be measured by satellites.
The types of pollutants entering streams, lakes and oceans from such sources include organic wastes, other nutrients, toxic chemicals and other hazardous substances, heated water, and sediments.