Crustal architecture and evolution of the conjugate volcanic margins off mid-Norway and East Greenland in a total rift context

全裂谷背景下挪威中部和东格陵兰岛共轭火山边缘的地壳结构和演化

• 批准号: 5395153
• 负责人: Professor Dr. Wilfried Jokat
• 金额: --
• 依托单位: Sektion Geophysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2003
• 资助国家: 德国
• 起止时间: 2002-12-31 至 2007-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5395153?language=en
• 关键词: Crustal; architecture; evolution; conjugate; volcanic

Integrated studies of conjugate rifted continental margins are essential for a better understanding of the fundamental processes responsible for the breakup and separation of lithospheric plates. We propose to study the conjugate volcanic margins off mid-Norway and East Greenland to establish the crustal architecture that provides key constraints for the understanding of the processes and the temporal sequence of events involved in volcanic margin formation and evolution. By using the existing databases and collect new 2D regional deep seismic data off mid-Norway and East Greenland in addition to a detailed 3D survey on the East Greenland margin we will focus on: (1) Crustal and uppermost mantle architecture, (2) tectonic and magnetic interplays and styles prior to, during and subsequent to breakup, (3) regional extension and magmatism, including estimates of volume and rates, (4) alongstrike segmentation, magmatic and tectonic (a)symmetry, structural inheritance, and (5) interplay of sedimentation, magmatism and vertical motion.

共轭裂陷大陆边的综合研究对于更好地理解岩石圈板块断裂和分离的基本过程至关重要。我们建议研究共轭火山边缘关闭挪威中部和东格陵兰岛建立地壳结构，提供关键的限制，了解火山边缘的形成和演化的过程和时间序列的事件。通过使用现有的数据库和收集挪威中部和东格陵兰岛附近的新的2D区域深地震数据，以及对东格陵兰岛边缘的详细3D调查，我们将重点关注：（1）地壳和上地幔结构，（2）断裂之前、期间和之后的构造和磁性相互作用和样式，（3）区域伸展和岩浆作用，包括对体积和速率的估计，（4）沿走向分段、岩浆作用与构造作用;（a）对称性、构造继承性;（5）沉积作用、岩浆作用与垂直运动的相互作用。

项目成果

Continent-ocean transition and voluminous magmatic underplating derived from P-wave velocity modelling of the East Greenland continental margin

• DOI: 10.1111/j.1365-246x.2007.03438.x
• 发表时间: 2007-08
• 期刊: Geophysical Journal International
• 影响因子: 2.8
• 作者: M. Voss;W. Jokat