ancient sediments meaning in English

古代沉积物

Biomarker has a wide application in the research of petroleum geology , such as different types of organics thermal evolution , ancient sediments ' environment and so on
摘要生物标志化合物在石油地质中应用广泛，可应用于源岩有机质类型和古沉积环境评价以及热演化阶段的确定等。
The carbon is also abundant in the rocks , and it persists through a thick pile of ancient sediments that represents as much as a million or more years of slow deposition
岩石中也有很丰富的碳，厚厚的古老沉积岩中一直都有碳的存在，这层沉积岩代表了超过百万年的缓慢沉淀过程。