Barbados Accretionary Prism: Seismic, Geothermal, Geochemical Fluid Expulsion Features

巴巴多斯增生棱镜：地震、地热、地球化学流体排出特征

• 批准号: 9013388
• 负责人: Marcus Langseth
• 金额: $ 5.06万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1992-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9013388&HistoricalAwards=false
• 关键词: Barbados; Accretionary; Prism; Seismic; Geothermal

This project will analyze and interpret geophysical data collected in the Barbados Accretionary Complex. The goals and products of the project include: (1) development of a comprehensive picture of the relation between the 3-D surface morphology of the accretionary prism and subbottom structures, (2) further definition of the distribution of heat flow in the Barbados Ridge accretionary complex, (3) characterization of the fluid flux and fluid expulsion features in areas that have been surveyed with seismic reflection methods and measurements of thermal, chemical and pore pressure gradients, (4) determination of the permeability and thermal properties of sediments taken in cores and analysis of long-term in site pore- pressure records obtained in 1988 to determine the in situ poro- elastic properties, and (5) further development of thermal and hydrological models of accretionary complex development.

该项目将分析和解释地球物理数据 在巴巴多斯增生综合体中采集的 的目标和 该项目的成果包括：（1）开发一个 三维表面之间的关系的综合图片 加积棱柱体和浅底构造的形态， (2)进一步定义了热流分布， 巴巴多斯海岭增生杂岩;（3）巴巴多斯海岭增生杂岩的特征 流体通量和流体排出特征， 用地震反射法和测量方法进行了调查， 热、化学和孔隙压力梯度，（4） 透气性和热性能的测定 岩心沉积物和长期现场孔隙分析， 1988年获得的压力记录，以确定现场孔隙率， 弹性性能，和（5）进一步发展的热和 加积复合体发育的水文模型