A New Method to Calculate Sedimentary Rates Based on Milankovitch Cycles: A Case Study on Middle Section of 3rd Member of Shahejie Formation in Well Niu38, Dongying Sag, Bohai Bay Basin
详细信息
- 责任者：Xu Wei (Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education ; China University of Geosciences ; Wuhan 430074 ; China) ; Xie Xinong
- 刊名：Petroleum Geology & Experiment
- 出版年：2012
- 卷期：34(2)
- 关键词：沉积速率 ; sedimentation rates ; 米兰柯维奇理论 ; Milankovich theory ; 东营凹陷 ; Dongying Sag
- 页码：p.207-214
- 图表：6 illus., 2 tables, 19 refs.
- 分类号：0803
- issnNo：ISSN1001-6112
- isbnNo：CN32-1151/TE
摘要
Based on regional stratigraphic framework, combined with seismic,core and logging data, the Dongying delta was divided into 9 periods named Z1-Z9. According to the sliding window spectrum analysis, the sedimentary rates of the target interval first increased and then decreased as time went by. The sedimentary rate of Z4 reached the maximum (0.127 m/ka) during the most prosperous period of delta prograding. Finally, the duration of each period and more accurate geological age of the interfaces were calculated on the basis of sedimentary rates.
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