Uplift of the Central Andes of NW Argentina Associated with Upper Crustal Shortening, Revealed by Multiproxy Isotopic Analyses
This study contributes to the uplift history of the Andes, which has received increasing attention in recent years because of its implications for geodynamic models and climate feedbacks. Shortening resulting in crustal thickening and removal of gravitationally unstable mantle lithosphere has been proposed to control deformation and uplift of Cordillera-type orogenic systems such as the Puna Plateau of the central Andes and its eastern margin, the Eastern Cordillera. We present new clumped isotope (Δ47), δ18O, and δ2Η data from carbonate nodules, marlstone, spring deposits, and volcanic ashes ...
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