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The basin comprises the Cretaceous depocentre of the Uruguayan continental margin (UCM). This study provides a seismic stratigraphic analysis of the Cretaceous post-rift sedimentary interval in the basin by defining its seismic facies, depositional sequences, shelf-edge trajectories and palaeophysiographical settings. All depositional sequences of the Cretaceous post-rift sedimentary interval represent intense basinward progradation marked by two depositional trends. The Lower Cretaceous sedimentary interval exhibits a dominant flat-to-descending shelf-edge trajectory with a migration of up to 37\u2005km. Deposition occurred over an irregular physiography with proximal NW\u2013SE and distal WSW\u2013ENE trends controlled by the characteristics of the volcanic margin. The basin geometry has strong implications for understanding the deposition of a deep-water turbidite system in the UCM, with a strong analogy to the recent discovery of the Venus well in the Orange Basin, offshore Namibia. Towards the Late Cretaceous, the NW\u2013SE depositional trend was controlled by a NE\u2013SW slope break, indicating deposition over the south and north highs. A low-angle ascending shelf-edge trajectory was observed, with a migration of up to 16\u2005km.<\/jats:p>","DOI":"10.1144\/petgeo2023-063","type":"journal-article","created":{"date-parts":[[2024,5,20]],"date-time":"2024-05-20T08:38:17Z","timestamp":1716194297000},"update-policy":"https:\/\/doi.org\/10.1144\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["Seismic stratigraphy of the Cretaceous post-rift sedimentary interval in the Punta del Este Basin (offshore Uruguay) and its implications for deep-water reservoirs"],"prefix":"10.1144","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2925-7147","authenticated-orcid":true,"given":"Marcos","family":"Sequeira","sequence":"first","affiliation":[{"name":"Programa de Desarrollo de las Ciencias B\u00e1sicas (PEDECIBA), Isidoro de Mar\u00eda 1614, 11800 Montevideo, Uruguay"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9230-7151","authenticated-orcid":false,"given":"Ethel","family":"Morales","sequence":"additional","affiliation":[{"name":"Programa de Desarrollo de las Ciencias B\u00e1sicas (PEDECIBA), Isidoro de Mar\u00eda 1614, 11800 Montevideo, Uruguay"},{"name":"Instituto de Ciencias Geol\u00f3gicas, Facultad de Ciencias, Universidad de la Rep\u00fablica, Igu\u00e1 4225, 11400 Montevideo, Uruguay"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2551-779X","authenticated-orcid":false,"given":"Bruno","family":"Conti","sequence":"additional","affiliation":[{"name":"Exploraci\u00f3n y Producci\u00f3n, Administraci\u00f3n Nacional de Combustibles, Alcohol y Portland (ANCAP), Paysand\u00fa s\/n y Av. del Libertador, 11100 Montevideo, Uruguay"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1881","published-online":{"date-parts":[[2024,7,5]]},"reference":[{"key":"e_1_3_6_2_1","volume-title":"The Emerging Orange Basin Oil Province in Namibia \u2013 A New Global Hot Spot for Exploration","author":"Bagley G.","year":"2022","unstructured":"Bagley, G. 2022. 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