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要了解海洋过去的沉积过程、环境条件和阐明海洋发展的历史过程,首先必须对古海洋的物理的、化学的和生物的特征进行重建研究。这是需要借助于海洋古生态学知识的。而海洋古生态学的基础,却是建立在以现代海洋生态学的知识来对海洋古生物及古海洋环境的推断上。虽然,这种从现代海洋来推断古海洋的性质与情况,并不一定都是完全正确的;但是,我们可以相信,在现代海洋与古海洋所发生相同性质的物理的、化学的和生物的现象及其变化过程,是具有共同点的。
To understand the past sedimentation process, environmental conditions and elucidate the historical process of ocean development, we must first study the physical, chemical and biological features of ancient oceans. This is the need to resort to the knowledge of marine paleoecology. However, the basis of marine paleoecology is based on the deduction of marine paleontology and ancient marine environment based on the knowledge of modern marine ecology. Although this assumption of the nature and circumstances of ancient oceans from the modern ocean is not always entirely correct, we can believe that the same physical, chemical and biological Phenomena and their changing processes have something in common.