COLLABORATIVE RESEARCH: Central Anatolian Tectonics (CD-CAT): Surface to mantle dynamics during collision to escape

合作研究：安纳托利亚中部构造（CD-CAT）：碰撞逃逸过程中的地表到地幔动力学

• 批准号: 1651237
• 负责人: Jane Willenbring
• 金额: $ 6.19万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-06-30 至 2017-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1651237&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Central; Anatolian; Tectonics

This project involves an integrated program to study the process of tectonic escape in Central Anatolia. This is the location where this process was first recognized in the 1970s and the PIs make a strong case that this is good place to investigate the temporal and spatial characteristics of this process in the context of a continent-continent collision. The research builds on previous geophysical and geological studies by many of the PIs in other parts of Turkey (both to the east and west of the planned study area). The research will investigate modern structure through a combination of geophysics and geology. Past history will be reconstructed through studies of elevation, drainage and volcanism. Studies of the Central Anatolian fault are important as this is a major feature that is poorly understood in Anatolian tectonics.Specifically, the PIs will address the questions:? What are the plate dynamics from the mantle to the Earth?s surface, the transition from distributed to localized strain in large strike-slip faults, the origin and consequences of magmatism, and the evolution of relief and landscape during development of escape tectonics?? What are the effects of boundary conditions (collision of Arabian plate to the east, extension of Aegean to the west, subduction of African plate to the south) on the driving forces of tectonic escape?The study will integrate results of passive seismic experiments; magnetotelluric profiling; geomorphic, structural, and stratigraphic-sedimentological analysis of surface geology and exhumed orogenic crust; geo/thermochronometric determination of temperature-time histories of magmatic, metamorphic, and fault zone rocks and geomorphic features; isotopic fingerprinting and dating of magmatic rocks; and 2D and 3D numerical modeling.

该项目涉及一个综合计划，以研究中部安纳托利亚中部的构造逃生过程。这是该过程在1970年代首次认可的位置，而PI则表明这是在大陆碰撞的背景下研究该过程的时间和空间特征的好地方。这项研究基于许多PI在土耳其其他地区的地球物理和地质研究（无论是在计划研究区域的东西方）的基础。该研究将通过地球物理学和地质学的结合来研究现代结构。过去的历史将通过对海拔，排水和火山主义的研究进行重建。对Anatolian中部断层的研究很重要，因为这是一个主要特征，在Anatolian Tectonics中对此尚不清楚。特别是，PIS将解决这些问题：？从地幔到地球表面的板动力学是什么，在大型滑移断层中从分布到局部菌株的过渡，岩浆作用的起源和后果以及在逃生构造发展过程中浮雕和景观的演变？边界条件（阿拉伯板到东部的碰撞，向西部延伸，南部俯冲向南延伸）对构造逃生的驱动力的影响是什么？该研究将整合被动地震实验的结果；磁铁分析；地面地质和挖掘造山地壳的地貌，结构和地层学位分析；岩浆，变质区和断层区岩石和地貌特征的温度时间历史的地理/热光学测定；岩浆岩石的同位素指纹和约会；以及2D和3D数值建模。