海洋地质前沿2024，Vol.40Issue(7)：45-55,11.DOI:10.16028/j.1009-2722.2023.284
深水斜坡沉积特征与控制因素
Characteristics and the controlling factors of sedimentation in deep-sea slopes:an example of the Roebuck Basin,Australia
摘要
Abstract
Understanding deep-water slope depositiona is of great significance for deep-water oil and gas explora-tion and development as well as deep-water geohazard protection.To reveal the characteristics and controlling factors of the Neogene deep-water slope deposition in the Roebuck Basin,Australia,the stratigraphic sequences of slope deposition were delineated by using high-resolution 2D seismic data,and seven third-level sequence inter-faces and six seismic sequences were recognized on seismic section.Results show that the Neogene in the study area are mainly the sedimentary sequences of progradational,aggradational-progradational,and retrogradational sedimentary sequences.The deep-water area of the Roebuck Basin developed three types of slope deposits:pro-gradational carbonate rock deposits,siliceous debris deltaic deposits,and olistostrome deposits.The deep-water slope deposits were controlled by various factors.In the Middle Oligocene and the Late Miocene,the slope depos-its were controlled by the relative sea level fluctuation,paleoclimate,and material supply,while after the Late Miocene,with the collision of the northward drifting Australian plate against the Banda Island Arc,the deep-wa-ter slope deposition was mainly controlled by tectonic activities.关键词
深水斜坡沉积/控制因素/深水油气/反射地震/柔布克盆地Key words
deep-sea slope deposition/controlling factors/deep-water hydrocarbons/reflection seismology/Roebuck Basin分类
海洋科学引用本文复制引用
姜露珊,栾锡武,李作福,肖菲,金龙,薛洋..深水斜坡沉积特征与控制因素[J].海洋地质前沿,2024,40(7):45-55,11.基金项目
国家自然科学基金(92055211,42249801) （92055211,42249801）
中国-东盟海上合作基金项目(2120100500017001) （2120100500017001）
