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首页> 外文期刊>Pure and Applied Geophysics >Determination of the Crustal and Thermal Structure of the Erzurum-Horasan-Pasinler Basins (Eastern Turkiye) Using Gravity and Magnetic Data
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Determination of the Crustal and Thermal Structure of the Erzurum-Horasan-Pasinler Basins (Eastern Turkiye) Using Gravity and Magnetic Data

机译：利用重力和磁数据确定埃尔祖鲁姆-霍拉桑-帕辛勒盆地（东突厥盆地）的地壳和热结构

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摘要

The Erzurum-Horasan-Pasinler basin, which surrounds Miocene rocks, is oriented approximately E-W and is located in Eastern Anatolia (Turkiye). East Anatolia, where ophiolitic and young volcanic rocks are widespread, is situated in the Alpine-Himalayan fold-thrust fault belt. The NW-SE trending North Anatolian Transform Fault Zone and the NE-SW trending East Anatolian Transform Fault Zone, formed by the compressional regime of East Anatolia, control the main tectonics of the study region. While the Moho and Conrad depths of the study region are 43.0 and 20.9 km, respectively, the average sedimentary thickness has been determined to be 5.2 km by using the power spectrum method. On the other hand, it is found that the depth of the Moho in the region varies from 41.0 to 44.5 km and the depth of the Conrad discontinuity varies between 22 and 26 km, as computed using empirical equations. The basement of the sedimentary layer is calculated to be 6 km by using inversion results applied to the residual gravity data. The Curie point depth and average heat flow value in this region are calculated as 18.0 km and 89.1 m Wm(-2), respectively. Geotherm calculations reveal that the Moho temperature is 1,028.0 A degrees C based on the crustal model. The high heat flow values obtained are attributed to tectonic activities and melting of the lithospheric mantle caused by upwelling of the asthenosphere.
机译：包围着中新世岩石的埃尔祖鲁姆-霍拉桑-帕辛勒盆地大致呈E-W方向，位于安纳托利亚东部（Turkiye）。安那托利亚东部地区，火山岩和新生火山岩广泛分布，它位于阿尔卑斯-喜马拉雅褶皱-冲断断裂带中。由东安纳托利亚的压缩体制形成的西北向东南走向的北安那托利亚变换断裂带和东北向西南走向的东安那托利亚变换断裂带控制着研究区域的主要构造。虽然研究区域的莫霍面和康拉德深度分别为43.0公里和20.9公里，但使用功率谱法已确定平均沉积厚度为5.2公里。另一方面，发现使用经验公式计算，该地区的莫霍面深度在41.0至44.5 km之间变化，康拉德间断面的深度在22至26 km之间变化。通过将反演结果应用于残余重力数据，可计算出沉积层的基底为6 km。计算该区域的居里点深度和平均热流值分别为18.0 km和89.1 m Wm（-2）。地热计算表明，根据地壳模型，莫霍温度为1,028.0 A摄氏度。获得的高热流值归因于软流圈上升引起的构造活动和岩石圈地幔融化。

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