Joint Lamont-Icelandic Wide-Angle Reflection/Refraction Survey of the South Iceland Overlapping Spreading Centers

拉蒙特-冰岛联合对冰岛南部重叠传播中心进行广角反射/折射调查

• 批准号: 9004207
• 负责人: William Menke
• 金额: $ 6.64万
• 依托单位: Columbia University Lamont Doherty Earth Observatory
• 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: 1990-08-01 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9004207&HistoricalAwards=false
• 关键词: Joint; Lamont; Icelandic; Wide; Angle

This research is to fund the U.S. portion of a joint U.S.- Icelandic wide-angle reflection/refraction experiment in the area of the South Iceland overlapping spreading centers. Field expenses will come from the Icelandic NSF. The experiment is designed to answer three questions: 1) Is the Eastern Volcanic Zone a propagating spreading center and what is its propagation speed? 2) Is there any subsurface evidence that the South Iceland Seismic Zone is a developed transform fracture zone at depth, 3) Does the Icelandic rift zone have crustal magma chambers or is it like the rest of the Mid-Atlantic Ridge, without any significant crustal low velocity zones? This research is a component of the National Earthquake Hazard Reduction Program.

这项研究是为了资助美国和冰岛在南冰岛重叠扩展中心地区进行的广角反射/折射联合实验的美国部分。实地费用将来自冰岛国家科学基金会。该实验旨在回答三个问题：1)东部火山带是一个传播扩张中心，其传播速度是多少？2)是否有任何地下证据表明南冰岛地震带是一个深部发育的转换断裂带，3)冰岛裂谷带是否有地壳岩浆室，或者它是否像中大西洋海脊的其他部分一样，没有任何显著的地壳低速带？这项研究是国家减少地震灾害计划的一部分。