The shape of the Himalayan “Arc”: An ellipse pinned by syntaxial strike-slip fault tips

作者：Li-Qing Jiao, P. Tapponnier, Aurélie Coudurier-Curveur Mccallum, Xi-wei Xu · 发表于：Proceedings of the National Academy of Sciences of the United States of America · 年份：2024 · DOI：10.1073/pnas.2313278121 · 被引用次数：23 · 研究领域：Medicine

Significance At its largest scale (≈ 2,500 km), the Himalayan mountain range and its two principal thrusts (Main Frontal and Main Central Thrusts) may have grown as confocal ellipses since the Mid-Miocene. This would account for the factor ≈ 3 between overthrusting rates in central Nepal and near both syntaxes, for the more frequent and larger magnitude earthquakes in Nepal, and for the ≈ EW extension across southern Tibet. Mechanically, the great collisional range appears to have been pinned at both of its extremities by the northern tips of the great strike-slip faults that bound India to the east and west.