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沉积间断的广泛存在，给年代地层对比、生物演化序列的研究，灾害性或幕式事件沉积层的分析造成了不利的影响，降低了研究结果的精度。根据沉积间断的形成时期，可将其划分为同生期沉积间断和后生期沉积间断；根据沉积间断的分布范围，可将其划分为微型、小型、中型、大型和巨型５个级别。一般而言，微型和小型沉积间断大多形成于同生期，大型和巨型沉积间断则主要由后生期的全球性海平面升降、古地理和古气候变化以及全球构造活动所形成，而中型沉积间断（在沉积盆地范围内发育）既可在同生期也可在后生期形成。地层完整性是指剖面上所有沉积物代表的总时间与地层剖面代表的总时间之比。由于地层剖面中或多或少地发育有沉积间断，因此地层剖面的完整性是一个大于０小于１的小数。如何准确地测定地层剖面的完整性是目前仍未能解决的地质学难题，近１０余年来，国外有许多研究者潜心于这一领域的研究，从不同的角度提出了各自的测定方法，这些方法包括：长期与短期沉积速率比值法、剖面厚度与全球同期平均沉积厚度比值法、潜穴化石定性估测法以及古地磁法等。尽管这些方法各有其不足之处，但却为今后的研究打下了坚实的基础。
The widespread occurrence of sedimentary discontinuities has adversely affected the comparison of age stratigraphy, the study of biological evolution sequences, the analysis of disastrous or episodic sedimentary layers, and reduced the accuracy of the research results. According to the formation period of sedimentary discontinuity, it can be divided into sedimentary interval of the same period and sedimentary interval of the epigenetic period. According to the distribution range of sedimentary discontinuity, it can be divided into five levels of micro, small, medium, large and giant. In general, most of the micro- and small-scale sedimentary faults are formed in the same period. Large-scale and large-scale sedimentary discontinuities are mainly formed by the global changes in sea level, palaeogeography and paleoclimate changes and global tectonic activities in the epigenetic period. (Developed within the sedimentary basin) can be formed both during and after the epoch. Stratigraphic integrity refers to the ratio of the total time represented by all sediments in the profile to the total time represented by the formation profile. The integrity of the stratigraphic section is a fraction greater than 0 and less than 1 due to the depositional discontinuities developed to a greater or lesser extent in the stratigraphic section. How to accurately determine the integrity of the stratigraphic profile is still not solve the geological problems over the past 10 years, many foreign researchers devote themselves to this area of research, from different perspectives put forward their own determination methods, these Methods include: long-term and short-term sedimentation rate ratio method, the section thickness and the global mean sediment thickness ratio method, the qualitative assessment of the latent fossil method and the paleomagnetic method. Although these methods have their own weaknesses, they have laid a solid foundation for future research.