Aero-Gravimetry

航空重力测量

• 批准号: 18243664
• 负责人: Professor Dr. Hans-Jürgen Götze
• 金额: --
• 依托单位: Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/18243664?language=en
• 关键词: Aero; Gravimetry

In an integrated geoscientific project we plan to study the control of crustal and upper mantlestructure on the occurrence and development of seismicity in the pull-apart basin of the DeadSea. The geoscientific projects necessary for this task consist of several mutually dependentand interlocked experiments and modeling approaches, see Fig. 6a:1. Plate Movement: Permanent GPS monuments in Jordan and temporary GPS campaigns2. Crustal Structure: Seismics and magnetotellurics3. Aero-Gravimetry: High resolution potential field data of the DST from the Sea of Galileeto the Gulf of Aqaba/Eilat4. Earthquakes & Radon: Monitoring and analyzing seismicity, radon emission, platemotion and magnetotellurics5. Geodynamic Modeling: 4D thermo-elastic modeling using the input from the other fourprojects. The crustal and lithospheric structure of the Dead Sea area will be determined in projects 2 and 3 (Crustal Structure and Aero-Gravimetry) which are to be complemented by local and regional seismological projects and observations at multi-parameter stations(project 4). Thestructure of the crust and lithosphere, the actual velocity, density, deformation and rigidity of the plates east and west of the DST and the Dead Sea Basin (project 1) are key inputparameters for the 4D modeling (project 5), which is the central component of GEO-DESIRE.The integration of the location parameters and source solutions for events in the Dead Seaarea (project 4) will be used to derive and understand better the dynamics and geologicaldevelopment of this world geological site. Some of the key questions of plate tectonics whichwe aim to answer are:1. Why and how does plate movement open deep holes/basins in the crust?2. How are stress and strain instantaneously distributed in time and space?3. How does this process influence and control asperities and earthquakedistribution?

在一个综合性的地学项目中，我们计划研究死海拉分盆地的地壳和上地幔结构对地震活动发生和发展的控制作用.这项任务所需的地球科学项目包括几个相互依赖和相互联系的实验和建模方法，见图6a：1。板块运动：约旦的永久性全球定位系统纪念碑和临时全球定位系统标志2。地壳结构：地震学和大地电磁学3。航空重力测量：从加利利海到亚喀巴/埃拉特湾DST的高分辨率位场数据4。地震和氡：监测和分析地震活动，氡排放，板块运动和大地电磁学5。地球动力学建模：使用其他四个项目的输入进行4D热弹性建模。死海地区的地壳和岩石圈结构将在项目2和项目3（地壳结构和航空重力测量）中确定，并将由地方和区域地震项目和多参数台站的观测（项目4）加以补充。地壳和岩石圈的结构，DST东部和西部板块以及死海盆地的实际速度、密度、变形和刚度（项目1）是4D建模的关键输入参数（项目5），死海地区事件定位参数和震源解的集成（项目4）将用于更好地推导和了解这一世界地质遗址的动态和地质发展。板块构造的一些关键问题，我们的目标是回答：1.板块运动为什么以及如何在地壳中打开深洞/盆地？2.应力和应变在时间和空间中是如何瞬时分布的？3.这个过程是如何影响和控制凹凸不平和地震分布的？