Linking deeply-sourced volatile emissions to plateau growth dynamics in southeastern Tibetan Plateau.

ABSTRACT: The episodic growth of high-elevation orogenic plateaux is controlled by a series of geodynamic processes. However, determining the underlying mechanisms that drive plateau growth dynamics over geological history and constraining the depths at which growth originates, remains challenging. Here we present He-CO₂-N₂ systematics of hydrothermal fluids that reveal the existence of a lithospheric-scale fault system in the southeastern Tibetan Plateau, whereby multi-stage plateau growth occurred in the geological past and continues to the present. He isotopes provide unambiguous evidence for the involvement of mantle-scale dynamics in lateral expansion and localized surface uplift of the Tibetan Plateau. The excellent correlation between ³He/⁴He values

SUBMITTER: Zhang M 

PROVIDER: S-EPMC8260613 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature