MOBAL Mongolia-Baikal transect (RESIF-SISMOB)

The 2003 MOBAL Experiment aimed at imaging the crustal and upper mantle structure from the Siberian platform
in the north to the Gobi-Altay range in the south, in order to provide geodynamic constraints to deep lithosphere
and asthenosphere velocities and deformations, and their relations to the Siberian craton, the Baikal rift,
the Hangay dome and the large scale strike-slip faults of Sayan, Bolnay and Bogd.
Several observations suggest a hot upper mantle beneath central Mongolia likely associated to a
lithosphere thinning, that may also explain the anomalous elevation associated to the Hangay dome.
The MOBAL experiment was followed by an aftershock sequence observation after the 2003 Chuya earthaquake.

2003年MOBAL实验（MOBAL Experiment）旨在对北至西伯利亚地台、南至戈壁阿尔泰山脉的地壳及上地幔结构开展成像研究，以期为深部岩石圈与软流圈的速度、形变及其与西伯利亚克拉通、贝加尔裂谷带、杭爱穹隆以及萨彦、博尔奈、博格多大型走滑断层的关联提供地球动力学约束。多项观测结果显示，蒙古中部下方存在高温上地幔，这一现象大概率与岩石圈减薄相关，同时也可解释杭爱穹隆对应的异常抬升特征。该MOBAL实验之后，研究团队还针对2003年楚亚地震开展了余震序列观测。