GEOLOGIC AND GEOPHYSICAL CHARACTERIZATION

地质和地球物理特征

• 批准号: 6340892
• 负责人: HERBERT H EINSTEIN
• 金额: $ 17.53万
• 依托单位: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-04-01 至 2001-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6340892
• 关键词: computer program /software; computer simulation; data collection; environmental stressor; environmental toxicology; environmental transport; field study; fresh water environment; ground water; hazardous substances; industrial waste; mathematical model; model design /development; soil; toxicant interaction; water flow; water pollution

Description: This project consists of three interconnected efforts: 1)"3-D Representation of Subsurface Conditions and Rock Fracture Flow in the Aberjona Valley"; 2)"Electromagnetic and Seismic Subsurface Characterization"; 3)"Chemical Contaminant Detection and Monitoring". The three efforts are integrated with each other and with the other Aberjona projects. The three-dimensional representation of conditions provides the link between the subsurface information obtained in the context of the Aberjona project and the planned predictive work regarding contaminant transport and contaminant interaction. This will be accomplished by using a computerized Kriging-Bayesian updating procedure. Since fracture flow is potentially very significant in the Aberjona Valley, this work will be continued through the creation of a three-dimensional fracture system model combined with individual fracture flow models and field observations. Geophysical measurement techniques will be used to extrapolate from point-wise exploration (boreholes); ground-penetrating radar and electrical resistivity techniques will be used to image subsurface electrical properties. These electrical properties can then be related to physical properties such as fluid content and orientation in the bedrock. At Mystic Lakes, ground-penetrating radar will be used to determine sedimentary layers and disturbances in the sedimentation process. Other geophysical techniques consisting of electric resistivity monitoring will be used to detect and image heavy metal contaminants in the groundwater. Since the measurement profiles can be observed at different times, it will also be possible to observe changes with time, i.e. to actually measure the contaminant transport.

说明：该项目包括三个相互关联的努力： 1）"地下条件和岩石断裂流的三维表示 在阿贝乔纳山谷"; 2）"电磁和地震地下 表征"; 3）"化学污染物检测和监测"。 这三项努力相互结合，相互促进 阿伯乔纳项目。条件的三维表示 提供了地下信息之间的联系， Aberjona项目的背景和计划的预测工作 关于污染物传输和污染物相互作用。这将 通过使用计算机化的Kriging-Bayesian更新 procedure.由于裂缝流动在地下水中潜在地非常重要， Aberjona山谷，这项工作将继续通过创建一个 三维裂隙系统模型结合个体 裂缝流动模型和现场观察。物探测量 技术将用于从逐点勘探中推断 （钻孔）;探地雷达和电阻率 技术将被用来成像地下电性能。 然后，这些电气特性可以与物理特性相关 例如基岩中的流体含量和方向。在神秘湖， 探地雷达将用于确定沉积层 和沉积过程中的干扰。其他地球物理 将采用电阻率监测技术 检测和成像地下水中的重金属污染物。以来 可以在不同的时间观察测量曲线， 也可以观察随时间的变化，即实际测量 污染物运输。