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.

该项目涉及一个研究中安纳托利亚构造逃逸过程的综合计划。这是1970年代首次发现这一过程的地方，私人投资指数有力地证明，这是在大陆-大陆碰撞的背景下研究这一过程的时间和空间特征的好地方。这项研究建立在土耳其其他地区(规划的研究区以东和以西)许多私人投资机构以前进行的地球物理和地质研究的基础上。这项研究将通过地球物理学和地质学的结合来研究现代构造。过去的历史将通过对海拔、排水和火山作用的研究来重建。对中央安纳托利亚断层的研究很重要，因为这是安纳托利亚构造中知之甚少的一个主要特征。具体地说，PI将解决以下问题：？从地幔到地球的板块动力学是什么？S地表，大型走滑断裂从分布应变到局部应变的转变，岩浆作用的起源和后果，以及逃逸构造发展过程中的地貌和地貌演化？边界条件(阿拉伯板块向东碰撞，爱琴海向西延伸，非洲板块向南俯冲)对构造逃逸驱动力有何影响？这项研究将综合被动地震实验的结果；大地电磁剖面；地表地质和出土造山壳的地貌、构造和地层沉积学分析；岩浆、变质和断裂带岩石和地貌特征温度-时间历史的地质/热计时测定；岩浆岩的同位素指纹和定年；以及二维和三维数值模拟。