Deep Vertical Seismic Profiling at the Continental Deep Drilling Site Oberpflaz, Germany

德国 Oberpflaz 大陆深钻现场的深层垂直地震剖面

• 批准号: 9727654
• 负责人: Scott Smithson
• 金额: $ 7.6万
• 依托单位: University of Wyoming
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-07-15 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9727654&HistoricalAwards=false
• 关键词: Deep; Vertical; Seismic; Profiling; Continental

9727654 Smithson The single most important result from deep scientific drilling in crystalline rocks in Russia and Germany may be the discovery of hydrous fluids through the entire depth range (9 to 12 km) of deep boreholes. The presence of hydrous fluids is so important, because even in small amounts, they have a dramatic effect on geologic processes such as mineral reactions, melting, rock strength, material transfer, seismic wave attenuation and ore deposits. Fluids also strongly affect seismic reflectivity by creating larger reflection coefficients than can be found from rock-rock interfaces alone. This award supports the U.S. portion of a cooperative project with the Principal Investigator's German colleagues to conduct a vertical seismic profile (VSP) in the deep part (3-8.5 km) of the KTB borehole in Germany and a moving source profile (MSP) from the surface into geophones in the borehole. The ICDP (International Continental Scientific Drilling Program) has already approved funding for the project. This award will provide one-third of the data acquisition costs. The Principal Investigator will participate in the data acquisition and data analysis by contributing his time to the project at no charge. ***

在俄罗斯和德国对结晶岩进行深层科学钻探的一个最重要的结果可能是在整个深度范围（9至12公里）的深钻孔中发现含水流体。含水流体的存在是如此重要，因为即使是少量的含水流体，也会对矿物反应、熔化、岩石强度、物质转移、地震波衰减和矿床等地质过程产生巨大影响。流体还会产生比岩石-岩石界面更大的反射系数，从而强烈影响地震反射率。该奖项支持了与首席研究员的德国同事合作项目的美国部分，该项目在德国KTB井眼的深层（3-8.5公里）进行垂直地震剖面（VSP），并从地表到井眼的地震检波器进行移动源剖面（MSP）。国际大陆科学钻探计划（ICDP）已经批准了该项目的资金。该合同将提供三分之一的数据采集费用。首席研究员将无偿参与数据采集和数据分析。＊＊＊