S Reflector and Rifting Processes: Galicia Bank Basin and Iberia Abyssal Plain

S 反射面和裂谷过程：加利西亚浅滩盆地和伊比利亚深渊平原

• 批准号: 9911725
• 负责人: Dale Sawyer
• 金额: $ 20万
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-01 至 2003-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9911725&HistoricalAwards=false
• 关键词: Reflector; Rifting; Processes; Galicia; Bank

Funds are being provided to allow the PIs to continue the interpretation of the seismic reflection and refraction data gathered during a 1997 cruise to the Galicia Bank and the Iberian Abyssal Plain. Some 4000 km of high-quality reflection profiles with 56 deployed OBS and hydrophones were collected on which the basic processing has been completed. In addition to this data, the British and French data in teh region will also form a part of the synthesis. The PIs will pursue pre-stack depth migration to image the internal structure of the peridorite ridge formed by the uplift of the upper mantle. Extimation of lateral variability of crustal extension on Iberian margin, calculation of residual Buguer gravity anomaly and a comparison with the conjugate New foundland margin are also planned.

目前正在提供资金，以便 PI 能够继续解释 1997 年加利西亚浅滩和伊比利亚深渊平原航行期间收集的地震反射和折射数据。 部署了56个OBS和水听器，采集了约4000公里的高质量反射剖面，并已完成基本处理。 除了这些数据之外，该地区的英国和法国数据也将构成合成的一部分。 PI将进行叠前深度偏移，以对上地幔隆起形成的橄榄岩脊的内部结构进行成像。 还计划对伊比利亚边缘地壳伸展的横向变化进行估算，计算残余布格尔重力异常以及与共轭新芬兰边缘进行比较。