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false4DOIDB.GIPP 10.5880/GIPP-MT.202003.2 Schmitt, Lorenzo Lorenzo Schmitt 0009-0006-9317-8036 GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Weckmann, Ute Ute Weckmann 0000-0002-4142-1018 GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Ritter, Oliver Oliver Ritter 0000-0002-2227-9503 GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Araya Vargas, Jaime Jaime Araya Vargas 0000-0003-1064-9252 Departamento de Geología, Universidad de Atacama, Copiapó, Chile Patzer, Cedric Cedric Patzer 0000-0003-4469-3825 Geological Survey of Finland GTK, Espoo, Finland GFZ Data Services 2025 Magnetotelluric Monitoring EarthShape Chile Coastal Cordillera Private Reserve Santa Gracia EARTH SCIENCE > SOLID EARTH > GEOMAGNETISM > MAGNETIC FIELD > GEOMAGNETIC INDUCTION Schmitt, Lorenzo Lorenzo Schmitt 0009-0006-9317-8036 GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Weckmann, Ute Ute Weckmann 0000-0002-4142-1018 GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Weckmann, Ute Ute Weckmann 0000-0002-4142-1018 GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Ritter, Oliver Oliver Ritter 0000-0002-2227-9503 GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Araya Vargas, Jaime Jaime Araya Vargas 0000-0003-1064-9252 Departamento de Geología, Universidad de Atacama, Copiapó, Chile Araya Vargas, Jaime Jaime Araya Vargas 0000-0003-1064-9252 Departamento de Geología, Universidad de Atacama, Copiapó, Chile Patzer, Cedric Cedric Patzer 0000-0003-4469-3825 Geological Survey of Finland GTK, Espoo, Finland Patzer, Cedric Cedric Patzer 0000-0003-4469-3825 Geological Survey of Finland GTK, Espoo, Finland GIPP-MT Team GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Weckmann, Ute GFZ Helmholtz Centre for Geosciences, Potsdam, Germany Dataset https://gfzpublic.gfz-potsdam.de/pubman/item/item_5036508 10.2312/GFZ.b103-19065 10.2312/GFZ.b103-15082 10.1038/s41598-021-90267-7 10.1093/gji/ggz197 10.1002/esp.5457 10.1016/j.jappgeo.2023.105191 10.5880/GFZ.2.7.2020.001 10.5880/GIPP-MT.202003.1 https://www.earthshape.net/ 10.17815/jlsrf-2-128 CC BY 4.0 In 2019, as part of the interdisciplinary DFG priority program SPP1803 „EarthShape - Earth Surface Shaping by Biota“, the DeepEarthShape project was launched. The main goal of this German-Chilean research initiative was to gain a broader understanding of the interaction between geological, geochemical and biological processes controlling the weathering in the first tens to hundred metres of the subsurface. The elongated Chilean Coastal Range was selected as the ideal study area to investigate the effects of vegetation, precipitation and erosion on the transformation of intact bedrock into regolith within the so-called critical zone (CZ). This area encompasses several climate zones, from dry to humid, within a similar geological complex. We have carried out a Radio-Magnetotelluric (RMT) survey using a horizontal magnetic dipole (HMD) transmitter to image the electrical resistivity distribution, the lateral extent of the near-surface layers and the CZ at two sites of the DeepEarthShape project – Santa Gracia (shown in this data publication) and Nahuelbuta (https://doi.org/10.5880/GIPP-MT.202003.1).
The Geophysical Instrument Pool Potsdam (GIPP) provides field instruments for (temporary) seismological studies (both controlled source and earthquake seismology) and for magnetotelluric (electromagnetic) experiments. The GIPP is operated by the GFZ German Research Centre for Geosciences. The instrument facility is open for academic use. Instrument applications are evaluated and ranked by an external steering board. See Haberland and Ritter (2016) and https://www.gfz.de/gipp for more information.

The DFG Priority Program 1803 "EarthShape - Earth Surface Shaping by Biota" (2016-2022; https://www.earthshape.net/) explored between scientific disciplines and includes geoscientists and biologists to study from different viewpoints the complex question how microorganisms, animals, and plants influence the shape and development of the Earth’s surface over time scales from the present-day to the young geologic past. All study sites are located in the north-to-south trending Coastal Cordillera mountains of Chile, South America. These sites span from the Atacama Desert in the north to the Araucaria forests approximately 1300 km to the south. The site selection contains a large ecological and climate gradient ranging from very dry to humid climate conditions.
Extend of the Radio-MT Survey Santa Gracia -71.1626 -71.1584 -29.7608 -29.7581 GFZ Helmholtz Centre for Geosciences http://dx.doi.org/10.13039/501100010956 202003 GIPP-MT Geophysical Instrument Pool Potsdam GIPP202003 GIPP-MT Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659 SPP 1803 EarthShape Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659 WE2839/13-1 GIDES