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首页> 外文期刊>Acta geodaetica et geophysica Hungarica >THERMAL MODELS SIMULATING THE TECTONICPROCESSES IN THE EXTRA-CARPATHIAN AREA(ON THE ROMANIAN TERRITORY): RHEOLOGICALMODELS AND THEIR INTERPRETATION INRELATION WITH THE LOCAL SEISMICWAVE ATTENUATION MODELS
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THERMAL MODELS SIMULATING THE TECTONICPROCESSES IN THE EXTRA-CARPATHIAN AREA(ON THE ROMANIAN TERRITORY): RHEOLOGICALMODELS AND THEIR INTERPRETATION INRELATION WITH THE LOCAL SEISMICWAVE ATTENUATION MODELS

机译:模拟喀尔巴阡山脉外地区(罗马尼亚领土上)构造过程的热模型:流变模型及其与局部地震波衰减模型的解释关系

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摘要

This study proposes a re-evaluation of the thermal models for lithosphere in themain tectonic units of the extra-Carpathian area (Central Moesian Platform, BlackSea Block and East-European Platform) and a minimization of the uncertaintiesin the spatial distribution of the parameters required in thermal modelling, by as-similation of available information supplied by tomographic seismic data, using theseismic wave velocity — temperature conversion. The thermal structures of the threetectonic compartments are estimated through the extrapolation of the surface heatflow determinations and by thermal modelling simulating the main geodynamic pro-cesses affecting the lithospheric structures (sedimentation in the Focsani Depression,magma eruption in the Neogene volcanic belt and convergence process in the East-ern Carpathians). Forcing the 1D and/or 2D thermal models (heat flow derivedgeotherms) to fit the seismic constraints (seismic derived geotherms) the more plau-sible values for the thermal parameters are assessed. The rheological structures inthe investigated zones are then obtained by valuating the developed thermal mod-els and are interpreted in correlation with the characteristics of the seismic wavepropagation process — quality factor of the medium Q, provided by recent seismicstudies.
机译:这项研究提出了对喀尔巴阡山脉以外地区主要构造单元(中央莫伊斯平台,黑海区块和东欧平台)岩石圈热力模型的重新评估,并最大程度地减少了所需的参数空间分布中的不确定性。通过使用这些地震波速度-温度转换,通过同化层析成像地震数据提供的可用信息来进行热建模。通过对地表热流确定值进行外推,并通过热模型模拟影响岩石圈结构的主要地球动力学过程(Focsani凹陷中的沉积,新近纪火山带中的岩浆喷发和纳粹的辐合过程),估算了三大构造隔层的热结构。东喀尔巴阡山脉)。强迫1D和/或2D热模型(热流衍生的地热)以适应地震约束(地震衍生的地热),评估的热参数值越合理。然后,通过评估开发的热模量,获得研究区的流变结构,并与地震波传播过程的特征(介质Q的品质因数)相关联进行解释,这是由最近的地震研究提供的。

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