Estimating the Magnitude of Eustasy, Late Cretaceous Through Miocene, New Jersey Coastal Plain - Ocean Drilling Project Leg 174X

9814025 Kominz拟议的研究将提高我们对过去1亿年来海平面升降（或全球）海平面变化历史的认识。 这一信息在地球科学研究中至关重要，因为海平面变化是所有构造测量的基准。 它也是大陆冰川作用以及海洋生成和大陆造山运动巨大变化的指示器。 最后，如果短期海平面变化（=0.5 - 3百万年），变化）可以被证明是海平面升降的，并确定日期，然后它可以用于全球对比，在一个比大多数生物地层学方法更精细的尺度。 对新泽西沿海平原钻孔的详细分析，结合海上层序地层分析和海上油井数据，为分析长期和短期海平面变化提供了前所未有的数据集。 通过对这些数据进行回剥分析，我们希望在评估短期地壳运动的现实及其幅度方面取得重大进展，同时提供关于地层解释含义的非常重要的反馈。 以前的工作表明，从这些类型的钻孔（ODP腿150 X）获得的数据足以获得短期（0.5 - 3.0百万年）的震级。海平面事件。 新的威尔斯井将验证或复杂化我们对中晚新生代记录的理解，将海平面（全球海平面）估计追溯到晚白垩世，并将海平面（区域）估计扩展到中白垩世。 这项工作的结果将是至关重要的研究近海序列和研究的海平面变化的这一年龄在许多其他边缘。

9814025KominzThe proposed research will enhance our knowledge of the history of eustatic, (or global) sea-level changes over the last 100 million years. This information is critical in earth-science studies because eustatic sea-level change is the datum against which all tectonics is measured. It is also an indicator of continental glaciation and of large changes in ocean generation and continental orogeny. Finally, if short-term sea-level change (=0.5 - 3 m.y. variations) can be shown to be eustatic, and dated then it could be used for global correlation at a scale finer than that of most biostratigraphic methods. The detailed analyses of boreholes drilled in the New Jersey coastal plain in conjunction with offshore sequence stratigraphic analyses and offshore well data provide an unprecedented data set for analysis of both long-term and short-term sea-level changes. By performing backstripping analyses of these data, we expect to make major strides in assessing the reality of short-term eustasy and it's magnitude, while at the same time providing very important feedback on the implications of stratigraphic interpretation as they are made. Previous work has shown that the data obtained from these types of boreholes (ODP leg 150X) is sufficient to obtain magnitudes of short-term (0.5 - 3.0 m.y. duration) sea-level events. The new wells will verify or complicate our understanding of the middle to late Cenozoic record, extend eustatic (global sea-level) estimates back to the late Cretaceous, and extend sea-level (regional) estimates to the middle Cretaceous. The results of this work will be critical to studies of offshore sequences and studies of sea-level changes of this age in many other margins.