Exhumation, crustal deformation, and thermal structure of the Nepal Himalaya derived from the inversion of thermochronological and thermobarometric data and modeling of the topography
Frédéric Herman,Frédéric Herman,Peter Copeland,Jean Philippe Avouac,Laurent Bollinger,Gweltaz Mahéo,Patrick Le Fort,Santaman Rai,Santaman Rai,David A. Foster,Arnaud Pêcher,Kurt Stüwe,Pierre Henry +12 more
TLDR
In this paper, the authors run 3D models by coupling PECUBE with a landscape evolution model (CASCADE) and show that lateral variations of the kinematics of crustal deformation and exhumation are likely.Abstract:
duplex initiated at 9.8 ± 1.7 Ma, leading to an increase of uplift rate at front of the High Himalaya from 0.9 ± 0.31 to 3.05 ± 0.9 mm yr −1 . We also run 3‐D models by coupling PECUBE with a landscape evolution model (CASCADE). This modeling shows that the effectoftheevolvingtopographycanexplainafractionofthescatterobservedinthedatabut not all of it, suggesting that lateral variations of the kinematics of crustal deformation and exhumationarelikely.Ithasbeenarguedthatthesteepphysiographictransitionatthefootof the Greater Himalayan Sequence indicates OOS thrusting, but our results demonstrate that the best fit duplex model derived from the thermochronological and thermobarometric data reproduces the present morphology of the Nepal Himalaya equally well.read more
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Expression of active tectonics in erosional landscapes
TL;DR: In this paper, the authors provide an overview of the analysis and interpretation of channel profiles in erosional mountain ranges and show that existing data support theoretical expectations of positive, monotonic relationships between channel steepness index, a measure of channel gradient normalized for downstream increases in drainage area, and erosion rate at equilibrium, and that the transient response to perturbations away from equilibrium engenders specific spatial patterns in channel profiles that can be used to infer the forcing.
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Convergence rate across the Nepal Himalaya and interseismic coupling on the Main Himalayan Thrust: Implications for seismic hazard
Thomas J. Ader,Thomas J. Ader,Jean Philippe Avouac,Jing Liu-Zeng,Hélène Lyon-Caen,Laurent Bollinger,John Galetzka,J. F. Genrich,Marion Y. Thomas,Kristel Chanard,Soma Nath Sapkota,Sudhir Rajaure,Prithvi Shrestha,Lin Ding,Mireille Flouzat +14 more
TL;DR: In this paper, the authors used GPS times series from 30 stations in Nepal and southern Tibet, in addition to previously published campaign GPS points and leveling data and determine the pattern of interseismic coupling on the Main Himalayan Thrust fault (MHT).
Journal ArticleDOI
Outward-growth of the Tibetan Plateau during the Cenozoic: A review ☆
Chengshan Wang,Jingen Dai,Xixi Zhao,Xixi Zhao,Yalin Li,Stephan A. Graham,Dengfa He,Bo Ran,Jun Meng +8 more
TL;DR: The surface uplift history of the Tibetan Plateau (TP) offers a key testing ground for evaluating models of collisional tectonics and holds important implications for processes ranging from global cooling to the onset of the Asian monsoon as mentioned in this paper.
Journal ArticleDOI
Worldwide acceleration of mountain erosion under a cooling climate
Frédéric Herman,Diane Seward,Pierre G. Valla,Andrew Carter,Barry P. Kohn,Sean D. Willett,Todd A. Ehlers +6 more
TL;DR: It is found that mountain erosion rates have increased since about six million years ago and most rapidly since two million years old, implying an increase in sediment flux at a global scale that coincides closely with enhanced cooling during the Pliocene and Pleistocene epochs.
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Himalayan megathrust geometry and relation to topography revealed by the Gorkha earthquake
John Elliott,Romain Jolivet,Romain Jolivet,Pablo J. González,Jean Philippe Avouac,Jean Philippe Avouac,James Hollingsworth,Michael P. Searle,V. L. Stevens +8 more
TL;DR: In this article, the authors used geodetic measurements of surface displacement to show that the 2015 magnitude 7.8 Gorkha earthquake ruptured the Main Himalayan Thrust fault, which caused the high Himalaya farther north to subside by about 0.6m.
References
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Cenozoic Tectonics of Asia: Effects of a Continental Collision: Features of recent continental tectonics in Asia can be interpreted as results of the India-Eurasia collision.
Peter Molnar,Paul Tapponnier +1 more
TL;DR: The JSTOR Archive is a trusted digital repository providing for long-term preservation and access to leading academic journals and scholarly literature from around the world, supported by libraries, scholarly societies, publishers, and foundations.
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Friction of Rocks
TL;DR: This paper showed that at low normal stress the shear stress required to slide one rock over another varies widely between experiments and at high normal stress that effect is diminished and the friction is nearly independent of rock type.
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Mechanics of fold-and-thrust belts and accretionary wedges
TL;DR: In this article, a simple analytical theory that predicts the critical tapers of subaerial and submarine Coulomb wedges is developed and tested quantitatively in three ways: First, laboratory model experiments with dry sand match the theory.
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Dynamics of the stream‐power river incision model: Implications for height limits of mountain ranges, landscape response timescales, and research needs
TL;DR: In this article, the authors explore the stream power erosion model in an effort to elucidate its consequences in terms of large-scale topographic (fluvial) relief and its sensitivity to tectonic and climatic forcing.