The offshore margins of Guyana, Suriname, and French Guyana (the “Guyanas Equatorial Margin”) have become the focus of active hydrocarbon exploration over the last decade, with significant energy resources discovered since 2015 along both the Guyana and Suriname segments of the margin. Those discoveries are mainly associated with the Late Cretaceous series of the Guyana-Suriname Basin and they shed light to a rare situation where stratigraphic traps are particularly successful. To date, the tectono-stratigraphic evolution of the area has been primarily examined at margin-scale through seismic refraction, rare borehole data and sparse, regional long offset multichannel 2D seismic datasets. In this paper we combine the results from newly acquired high-resolution well data, 2D/3D seismic interpretation and 3D seismic geomorphology, to build a robust and consistent sequence stratigraphic framework and address the evolution of Cretaceous sedimentary landscapes offshore Suriname, with a particular emphasis on the Late Cretaceous strata.

中文翻译：

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白垩纪苏里南边缘的构造沉积演化：层序地层框架


圭亚那、苏里南和法属圭亚那的近海边缘（“圭亚那赤道边缘”）在过去十年中已成为活跃碳氢化合物勘探的焦点，自 2015 年以来，沿着边缘的圭亚那和苏里南部分发现了大量能源资源。这些发现主要与圭亚那-苏里南盆地的晚白垩世系列有关，它们揭示了地层圈闭特别成功的罕见情况。迄今为止，该地区的构造地层演化主要通过地震折射、稀有钻孔数据和稀疏的区域长偏移距多道二维地震数据集在边缘尺度上进行了研究。在本文中，我们结合了新获取的高分辨率井数据、2D/3D 地震解释和 3D 地震地貌的结果，建立了稳健且一致的层序地层框架，并特别强调苏里南近海白垩纪沉积景观的演化位于晚白垩世地层上。