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Magnetotelluric and Transient Electromagnetic data from Afar, Ethiopia

Dataset title Magnetotelluric and Transient Electromagnetic data from Afar, Ethiopia
Dataset creators Kathy Whaler, University of Edinburgh
Dataset theme Geoscientific Information
Dataset abstract

This data set comprises broadband magnetotelluric (MT) and transient electromagnetic (TEM) data collected during three field seasons in 2008, 2009 and 2010 by a team of researchers from the University of Edinburgh, UK, IMAGIR, Brest, France and the Institute for Geophysics, Space Science and Astronomy at Addis Ababa University, Ethiopia. The MT dataset includes the original time series and processed transfer functions. The time series data are provided in the original raw data format with files to convert them to ascii. Raw and processed TEM data, collected with a Geonics PROTEM system, are included. We provide information on the locations and the processing and include the necessary instrument response functions and metadata to reproduce our results from the raw data.

Dataset content dates January 2008 to March 2010
Dataset spatial coverage Western Afar, Ethiopia 11.5-13°N, 40-41.5°E
Dataset supply format MT timeseries: original raw binary in system specific format (SPAM Mk III and SPAM Mk IV) with files to convert to ascii
Transfer functions: plain text
TEM data: plain text
Dataset language English-United Kingdom
Dataset discovery metadata record Discovery Link to the dataset's BGS Discovery Metadata record
Dataset publisher British Geological Survey
Dataset publication date 28th January 2021
Dataset digital object identifier(DOI) 10.5285/c9ec9000-bc46-450e-a8bc-5c35cfdf6703
Dataset citation text Whaler, K. (2021): Magnetotelluric and Transient Electromagnetic data from Afar, Ethiopia. British Geological Survey. (Dataset). https://doi.org/10.5285/c9ec9000-bc46-450e-a8bc-5c35cfdf6703
Constraints and terms of use This data set is available under Open Government Licence, subject to the following acknowledgement accompanying any reproduced materials: "Contains data supplied by permission of the Natural Environment Research Council [YEAR]".
Access the dataset https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item161826
Further information

Related Publications:
Johnson, N. E., Whaler, K. A., Hautot, S., Fisseha, S., Desissa, M., & Dawes, G. J. K. (2015). Magma imaged magnetotellurically beneath an active and an inactive magmatic segment in Afar, Ethiopia. In T. Wright, A. Ayele, D. Ferguson, T. Kidane, & C. Vye-Brown (Eds.), Magmatic rifting and active volcanism (Vol. 420, pp. 105–125). Geological Society, London, Special Publications.
Desissa, M, Johnson, N E, Whaler, K A et al., 2013. A mantle magma reservoir beneath an incipient mid-ocean ridge in Afar, Ethiopia, Nature Geoscience, 6, 861-865, doi: 10.1038/ngeo1925
Medynski, S, Pik, R, Burnard, P, Vye-Brown, C, France, L, Schimmelpfennig, I, Whaler, K, Johnson, N, Benedetti, L, Ayelew, D and Yirgu, G, 2015, Stability of rift axis magma reservoirs: spatial and temporal evolution of magma supply in the Dabbahu rift segment (Afar, Ethiopia) over the past 30 kyr, Earth Planet. Sci. Lett., 409, 278-289, doi: 10.1016/j.epsl.2014.11.002
Ebinger, C J, Keir, D, Bastow, I D, Whaler, K A, Hammond, J O S, Ayele, A, Miller, M S, Tiberi, C and Hautot, S, 2017. Crustal structure of active deformation zones in Africa: Implications for global crustal processes, Tectonics, 36, 3298–3332, doi: 10.1002/2017TC004526