Lithospheric Delamination Beneath the Southern Puna Plateau Resolved by Local Earthquake Tomography

  title={Lithospheric Delamination Beneath the Southern Puna Plateau Resolved by Local Earthquake Tomography},
  author={Jiang-Xing Chen and Sofia‐Katerina Kufner and Xiaohui Yuan and Benjamin Heit and Hao Wu and Dinghui Yang and Bernd Dieter Schurr and Suzanne Kay},
  journal={Journal of Geophysical Research: Solid Earth},
We present a local earthquake tomography to illuminate the crustal and uppermost mantle structure beneath the southern Puna plateau and to test the delamination hypothesis. Vp and Vp/Vs ratios were obtained using travel time variations recorded by 75 temporary seismic stations between 2007 and 2009. In the upper crust, prominent low Vp anomalies are found beneath the main volcanic centers, indicating the presence of magma and melt beneath the southern Puna plateau. Beneath the Moho at around 90… 

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