VPW: Sequence Stratigraphic Backstripping: Generating a Cenozoic Eustatic Sea-Level Curve

本研究通过研究3个热盆地的沉降，即巴尔的摩峡谷海槽（新泽西近海）、墨西哥湾东北部和北海盆地，确定了新生代大部分时间的海平面变化幅度和时间。 在每个位置，可容纳空间的海平面分量将通过层序地层回剥与构造和沉积物分量分离。 北海盆地的程序生成和研究由NSF资助P.I.， 米歇尔·科敏兹医生 将输入层序地层数据、测井记录和地壳厚度。 通过去除沉积物负荷的影响，这些数据的弯曲回剥产生可容纳空间。 可容纳空间的海平面变化和构造成分的分离将是可能的，基于其独特的时间和空间特性。 需要对每个盆地进行正演模拟，以确定沉积物对岩石圈热历史的影响，并确定岩石圈作为时间函数的抗弯刚度。 最后，综合各盆地的海平面变化结果，去除区域构造作用，得到前更新世-新生代海平面变化曲线。 互动活动包括：教授海洋地质学高级本科/研究生课程，并共同教授层序地层学和回剥研究生课程。 Kominz将在额外的课程中提供个人讲座或讲座集，包括海洋科学介绍，地质学介绍，地层学和地球物理学。

This research establishes the magnitude and timing eustatic sea- level for much of the Cenozoic by studying the subsidence of 3 thermal basins, The Baltimore Canyon Trough (offshore New Jersey), The Northeast Gulf of Mexico and the North Sea Basin. In each location the eustatic component of accommodation space will be separated from the tectonic and sediment components via a sequence stratigraphic backstripping. Procedure generation and study of the North Sea Basin are funded by NSF grant EAR-9506572 to the P.I., Dr. Michelle Kominz. Sequence stratigraphic data coupled with well logs and crustal thicknesses will be the input. Flexural backstripping of this data produces accommodation space by removing the effects of sediment loading. Separation of the eustatic and tectonic components of accommodation space will be possible based on their unique temporal and spatial properties. Forward modeling of each basin is required to determine the effects of sediment on the thermal history of the lithosphere and to determine the flexural rigidity of the lithosphere as a function of time. Finally, the eustatic results of each basin will be integrated to remove regional tectonism and to obtain a Pre-Pleistocene Cenozoic eustatic curve. Interactive activities include: teaching upper level undergraduate/graduate courses in Marine Geology and co-teaching a graduate course on Sequence Stratigraphy and Backstripping. In addition, Dr. Kominz will present individual lectures or sets of lectures in additional classes including Introduction to Marine Science, Introductory Geology, Stratigraphy and Geophysics.