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Abstract: The uplift of the Iranian plateau is a result of prolonged plate convergence that began with the initiation of subduction in the Neotethys Ocean during the Jurassic period. The history of the Iranian plateau can be divided into two main phases: subduction-related and collisional-built. Subduction-related plateaus can have similar elevations to collisional plateaus and can also play an important role in climate patterns, as seen in the modern Altiplano plateau. Understanding the rise of the Iranian plateau is critical to addressing thick Late Cretaceous and Paleocene deposits over Eurasia and shaping the global paleoclimate pattern. Recent studies suggest that the Anatolian-Iranian Plateaus may have had more contribution in shaping the global climate alongside the Tibetan plateau prior to the Neogene. The question remains as to whether the Iranian Plateau achieved plateau elevations by subduction-related thrusting before the collision or whether the plateau condition resulted after the Arabia-Eurasia collision since the mid-Oligocene. To answer this question, we used inversion and forward models, as well as machine learning approaches, to obtain a complete record of topography relief and uplift rate since the Jurassic. We analyzed low and high-temperature thermochronology on several plutons and crystalline rock associations distributed along the modern edge of the Iranian plateau. We obtained a complete cooling history, exhumation pattern, velocity, and acceleration of uplifting blocks across the Sanandaj-Sirjan Metamorphic Zone and proposed topographic and geodynamic models that synchronize with the thermochronological data.

Research and Operations Center (ROC), 2.103
17217 Waterview Pkwy #1.202, Dallas, TX 75252

Natural Sciences & Mathematics

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