A Study on Astronomical Cycle Identification and Environmental Response Characteristics of Lacustrine Deep-Water Fine-Grained Sedimentary Rocks: A Case Study of the Lower Submember of Member 3 of Shahejie Formation in Well Fanye-1 of Dongying Sag, Bohai Bay Basin, China

Table 4

Comparison between dominant cycle thickness ratio and theoretical orbit period ratio.

Cycle thickness (m)	Ratio	Theoretical orbital period (ka)	Ratio
38.95	19.974	405	18.409
12.98	6.656	124.22	5.646
4.10	2.103	39.76	1.807
2.40	1.231	23.28	1.058
1.95	1.000	22	1.000