Organic geochemistry of Quaternary source rocks is not favorable to the generation of natural gas,such as the low organic matter content,the thin layer and the low ethanoic acid content in mudstones.

• 柴达木盆地东部三湖地区第四系泥岩有机质丰度低、厚度小,且乙酸含量低,其有机地球化学特征不利于天然气的生成。