蒙古阿尔泰山湖泊洼地起源的地貌研究:对构造过程和冰川过程之间关系的影响

Altanbold Enkhbold, U. Khukhuudei, Yeong Bae Seong, Yumchmaa Gonchigjav, Dingjun Li, B. Ganbold
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引用次数: 0

摘要

蒙古阿尔泰山的湖泊洼地及其形成的相关问题尚未在以往的研究中得到深入探讨。以往的研究主要集中在阿尔泰山的古地理演变和冰川动力学方面。本研究介绍了形成蒙古阿尔泰山霍通湖、库尔干湖、大堰湖、哈尔湖(西部)和哈尔湖(东部)等湖泊洼地的构造和冰川过程之间的关系。霍通湖、库尔干湖和达彦湖的洼地位于区域断裂带沿线,呈西北-东南方向延伸,形成与蒙古阿尔泰山直接相连的山间洼地。然而,达延湖、哈尔湖(西部)和哈尔湖(东部)的洼地已被洼地近部分的冰碛沉积物阻断。构造地貌标准符合矩阵表明,霍通湖、库尔干湖、达延湖和喀尔(西)湖洼地的符合度超过 50%。同样,冰川地貌标准符合矩阵表明,所有湖泊洼地的符合率均超过 60%。因此,蒙古阿尔泰山间洼地源于构造,而湖泊则源于冰川,是冰碛沉积的结果。这项工作的意义在于展示了如何利用地貌学研究来详细了解湖泊洼地的形态。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Geomorphological study of the origin of Mongolian Altai Mountains Lake depressions: implications for the relationships between tectonic and glacial processes
The lake depressions in the Mongolian Altai Mountains, and the issues related to their formation have yet to be thoroughly examined in previous research. Previous studies primarily focused on the paleogeographical evolution and glaciation dynamics of the Altai Mountains. This study presents relationships between tectonic and glacial processes that have formed the lake depressions, such asKhoton, Khurgan, Dayan, Khar (western), and Khar (eastern) in the Mongolian Altai Mountains. The depressions of Khoton, Khurgan, and Dayan lakes are situated along regional fault zones, extending in an northwest-southeast direction, forming intermontane depressions directly connected to the Mongolian Altai Mountains. However, the depressions of Dayan, Khar (western), and Khar (eastern) lakes have been dammed by moraine deposits in the near portion of the depression. The compliance matrix of tectonic geomorphological criteria indicates that the Khoton, Khurgan, Dayan Lake, and Khar (western) Lake depressions are more than 50% compatible. Similarly, the compliance matrix for glacial  eomorphological criteria indicates more than 60% compliance for all lake depressions. The Mongolian Altai intermontane depressions are thus of tectonic origin, whereas the lakes have a glacial origin, resulting from dammed moraine sediments. The significanceof this work lies in demonstrating how geomorphological research can be employed to provide a detailed understanding of the pattern of lake depressions.
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