Statistical classification of log response as an indicator of facies variation during changes in sea level: Integrated Ocean Drilling Program Expedition 313
Statistical classification of log response as an indicator of facies variation during changes in sea level: Integrated Ocean Drilling Program Expedition 313
复制标题
测井响应的统计分类作为海平面变化期间相变化的指标：综合海洋钻探计划远征 313
DOI：
10.1130/ges00913.1
复制
发表时间：
2013
期刊：
影响因子：
2.5
通讯作者：
Henna Valppu
中科院分区：
文献类型：
--
作者：
J. Inwood;J. Lofi;S. Davies;C. Basile;Christian Bjerum;G. Mountain;J. Proust;H. Otsuka;Henna Valppu
在这项研究中，一种统计方法的新应用被用于分析新泽西州边缘(美国东部)中新世硅质陆架沉积物的井下测井数据。综合大洋钻探计划(IODP)勘探313的能谱伽马射线测井的多变量迭代非等级聚类分析(INCA)能够推断该硅质碎屑岩序列的岩性，并通过与已回收岩心1311米的对比，建立了沉积层序的连续评价。印加岩团的显著变化证实了从岩心解释的大多数关键地层面，这一结果对于岩心回收不良区间的表面识别具有特殊的价值。这一分析有助于评估大规模床状复合体的层序地层学模型，这些模型预测了沉积环境、沉积物成分和地层几何形状，以响应海平面的变化。这种将统计分析与详细的岩石地层和地震反射数据集相结合的新方法将引起任何从事井下测井工作的科学家的兴趣，特别是能谱伽马数据，也为多组分分析应用于大陆边缘岩相的优缺点提供了参考。该方法适用于其他地区的层序评价，对以层序地层学为基本工具的油气勘探也有一定的参考价值。
In this study, a novel application of a statistical approach is utilized for analysis of downhole logging data from Miocene-aged siliciclastic shelf sediments on the New Jersey Margin (eastern USA). A multivariate iterative nonhierarchical cluster analysis (INCA) of spectral gamma-ray logs from Integrated Ocean Drilling Program (IODP) Expedition 313 enables lithology within this siliciclastic succession to be inferred and, through comparison with the 1311 m of recovered core, a continuous assessment of depositional sequences is constructed. Significant changes in INCA clusters corroborate most key stratigraphic surfaces interpreted from the core, and this result has particular value for surface recognition in intervals of poor core recovery. This analysis contributes to the evaluation of sequence stratigraphic models of large-scale clinoform complexes that predict depositional environments, sediment composition, and stratal geometries in response to sea-level changes. The novel approach of combining statistical analysis with detailed lithostratigraphic and seismic reflection data sets will be of interest to any scientists working with downhole logs, especially spectral gamma-ray data, and also provides a reference for the strengths and weaknesses of multicomponent analysis applied to continental margin lithofacies. The method presented here is appropriate for evaluating successions elsewhere and also has value for hydrocarbon exploration where sequence stratigraphy is a fundamental tool.
南海海槽增生棱柱岩石物理确定的岩相：NanTroSEIZE，IODP Expedition 314
影响因子：
2.7
作者：
Tudge J
通讯作者：
Tudge J