depositional organic matter的用法和样例：
例句
- Palynofacies is a particular sedimentary organic matter, which can reflect sedimentation and lithogenesis environment.
孢粉相是反映沉积物及其成岩作用环境的沉积有机质组合。 - The hydrocarbon is the product of conversion of organic metter deposited in the reducing environment.
油气为还原环境沉积有机质的转化产物，坳陷具有良好的成烃潜力。
