2026-06-16T17:25:43Zhttp://doidb.wdc-terra.org/oaip/oai

oai:doidb.wdc-terra.org:69122026-06-10T10:03:39ZDOIDBDOIDB.GFZ

false4DOIDB.GFZ 10.5880/GFZ.2.4.2020.002 Chen, Jing Jing Chen Tsinghua University, Beijing, China GFZ German Research Centre for Geosciences, Potsdam, Germany Kufner, Sofia-Katerina Sofia-Katerina Kufner GFZ German Research Centre for Geosciences, Potsdam, Germany Yuan, Xiaohui Xiaohui Yuan 0000-0002-2891-1354 GFZ German Research Centre for Geosciences, Potsdam, Germany Heit, Benjamin Benjamin Heit GFZ German Research Centre for Geosciences, Potsdam, Germany Wu, Hao Hao Wu Tsinghua University, Beijing, China Yang, Dinghui Dinghui Yang Tsinghua University, Beijing, China Schurr, Bernd Bernd Schurr GFZ German Research Centre for Geosciences, Potsdam, Germany Kay, Suzanne Suzanne Kay Cornell University, Ithaca, New York, US GFZ Data Services 2020 local earthquake tomography lithospheric delamination subduction zone EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > PLATE BOUNDARIES Chen, Jing Jing Chen Tsinghua University, Beijing, China GFZ German Research Centre for Geosciences, Potsdam, Germany Chen, Jing Jing Chen Tsinghua University, Beijing, China GFZ German Research Centre for Geosciences, Potsdam, Germany Kufner, Sofia-Katerina Sofia-Katerina Kufner GFZ German Research Centre for Geosciences, Potsdam, Germany Yuan, Xiaohui Xiaohui Yuan 0000-0002-2891-1354 GFZ German Research Centre for Geosciences, Potsdam, Germany Yuan, Xiaohui Xiaohui Yuan 0000-0002-2891-1354 GFZ German Research Centre for Geosciences, Potsdam, Germany Heit, Benjamin Benjamin Heit GFZ German Research Centre for Geosciences, Potsdam, Germany Wu, Hao Hao Wu Tsinghua University, Beijing, China Yang, Dinghui Dinghui Yang Tsinghua University, Beijing, China Schurr, Bernd Bernd Schurr GFZ German Research Centre for Geosciences, Potsdam, Germany Kay, Suzanne Suzanne Kay Cornell University, Ithaca, New York, US Yuan, Xiaohui GFZ Potsdam 2020-03-26 Model 10.1029/2019JB019040 10.3133/ofr94431 https://ethz.ch/content/dam/ethz/special-interest/erdw/geophysics/seismology-and-geodynamics-dam/document/velest_guide.pdf 10.1002/2013TC003393 10.1029/JB094iB12p17497 CC BY 4.0 This data publication includes digital data of the final 3D tomographic model from Chen et al. (2020: Lithospheric delamination beneath the southern Puna plateau resolved by local earthquake tomography).

The 3D seismic velocity models are results of a local earthquake tomography which is performed to illuminate the crustal and uppermost mantle structure beneath the southern Puna plateau and to test the delamination hypothesis. The Southern Puna is distinctive from the rest of the Central Andean plateau in having a higher topographic elevation, a thinner lithosphere and in being flanked to the south by the Chilean flat slab region. Previous investigations involving geochemical, geological and geophysical observations, have invoked lithospheric delamination to explain the distinctive magmatic and structural history, elevation and lithospheric thickness of the region.

In the present study, Vp and Vp/Vs ratios were obtained using travel time variations recorded by 75 temporary seismic stations between 2007 and 2009. The earthquakes catalog (Mulcahy et al., 2014) contains 1903 local earthquakes (25077 P- and 14059 S-picks). A minimum 1D model is derived with software VELEST (Kissling et al., 1995). The 3D tomographic inversion is performed with software SIMULPS (Thurber, 1983; Evans et al., 1994). Spread values are used to define well resolved model domains (6 for Vp and 5.5 for Vp/Vs), which are calculated from the model resolution matrix (Toomey & Foulger, 1989).

The data are provided as one tar.gz archive. Individual ASCII files contain, at each depth from 0 to 200 km:

- Vp model (model.vp.depth_???km), format: longitude, latitude, depth, Vp perturbation, absolute Vp
- Vp/Vs model (model.vpvs.depth_???km), format: longitude, latitude, depth, Vp/Vs perturbation, absolute Vp/Vs
- spread values for Vp (spread.vp.depth_???km), format: longitude, latitude, depth, spread value
- spread values for Vp/Vs model (spread.vpvs.depth_???km), format: longitude, latitude, depth, spread value
Southern Puna Plateau -71 -64 -29 -24