Sequence Stratigraphic Backstripping with Application to the Cenozoic of the North Sea

层序地层反剥及其在北海新生代的应用

• 批准号: 9506572
• 负责人: Michelle Kominz
• 金额: $ 9.05万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-07-01 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9506572&HistoricalAwards=false
• 关键词: Sequence; Stratigraphic; Backstripping; Application; Cenozoic

Kominz 9506572 The projected research will establish a sequence stratigraphic backstripping procedure. Sequence stratigraphic and genetic stratigraphic data coupled with well logs and crustal thicknesses will be the input for a two-dimensional, flexural, backstripping effects of sediment loading. Separation of the eustatic and tectonic components of accommodation space will then be possible, based on the unique temporal and spatial properties of each. Thermally driven subsidence has an exponential form with depth, that will be a function crustal and mantle stretching. In-plane stress has a well-defined form with respect to margin distance, but no predictable form in time. Eustacy also has no predictable form in time. Eustacy, however, is constant in space. The model will be designed to be applied to a thermally subsiding region. The model will be tested on an extensive data set from the Cenozoic of the northern North Sea Basin. Five traverses, including strike and dip sections, will be interpreted in detail, using both systems tract sequence stratigraphic and genetic sequence stratigraphic concepts. Recent biostratigraphic data, well logs and deep seismic data will also be included in the data base. Application of sequence stratigraphic backstripping will produce a range of possible stretching factors, eustatic curves and stress histories for the northern North Sea Basin. Cross sections showing the decompacted sediment thicknesses as well as underlying bathymetry will add insight to interpretations of sediment sources and basement controls on deposition.

科明兹9506572计划的研究将建立一个层序地层倒剥程序。层序地层学和成因地层学数据与测井和地壳厚度相结合，将作为二维、弯曲、反剥离泥沙加载效应的输入。然后，根据居住空间的独特的时间和空间特性，可以将居住空间的海平面和构造部分分开。热驱动的下沉具有随深度的指数形式，这将是地壳和地幔拉伸的函数。平面内应力具有关于边界距离的明确形式，但在时间上没有可预测的形式。尤斯塔西在时间上也没有可预测的形式。然而，优势性在太空中是恒定的。该模型将被设计用于热沉降区。该模型将在北海盆地北部新生代的大量数据集上进行测试。将使用体系域层序地层学和成因层序地层学的概念，详细解释包括走向和倾角剖面在内的五个导线。数据库还将包括最近的生物地层数据、测井和深部地震数据。层序地层反剥的应用将产生北海盆地北部一系列可能的伸展因素、海平面曲线和应力历史。显示解压沉积物厚度和下伏水深的横断面将有助于解释沉积物来源和基底对沉积的控制。