Presentation on theme: "AlpArray Magnetotelluric MT Group at the GFZ 12E swath meeting, 18. Juli, 11:00 - 17:00."— Presentation transcript:
AlpArray Magnetotelluric MT Group at the GFZ 12E swath meeting, 18. Juli, 11: :00
Three-dimensional electrical conductivity structure of the entire Alps using MT array data High-resolution electrical conductivity images of the Periadriactic Fault system (12E Swath) Field Setups
Regional Scale Field Setup: - ~ 160 sites, km site spacing -Long period data recording time ~ 1 month. -Instruments National German Instrument Pool (GIPP-MT) Collaboration: U. Cologne: B. Tezkan FU Berlin: H. Brasse U. Frankfurt: A. Junge U. Münster: M. Becken U. Oulu: T. Korja U. Barcelona: J. Pous Czech A. Science: J. Pek U. Leicester: M. Moorkamp ETH Zurich: A. Kuvshinov CNR – IGG: Adele Manzella Total Cost: 660k - Field experiment 150k - 1 PostDoc (36 PM, TvÖD13) 225k - 1 PhD (36 PM, TvÖD13, 75%) 169k - 4 Student helper (36PM) 56k - Travel 60k. Key points: Imaging lower crust uppermost mantle: -Transition from the western to the eastern Alps. -Active and fossil fault systems. -Provide boundary values for further localized MT experiments.
Local Scale Total cost: 313k - Field experiment 100k - 1 PhD (36 PM, TvÖD13, 75%) 169k - 1 Student helper (36PM, 40h/month) 14k - Travel 30k. Personal: Mainly the GFZ MT working group Key points: Imaging crustal structures including: -Shear zones: possible pathways for mantle fluids, -active and fossil fault systems, -the boundary between the European and Adriatic plates. - ~ 2 km km site spacing -Broad Band data recording time 3-4 days. -The duration of the field experiment: 6-8 weeks.
CVA: Cascade volcanic arc; NBR: Northern Basin and Range; SRP: Snake River Plain; YS: Yellowstone; GFTZ: Great Falls Tectonic Zone; CB: Cheyenne Belt; CRP: Columbia River Plateau; MHB: Medicine Hat Block; CP: Colorado Plateau; VS: Vulcan Suture; BA1: Back arc upwelling. White dashed line represents the outline of Siletzia embayment as imaged by Humphreys (2008) and Gao et al. (2011) USArray-MT
USArray-MT: Typical cross-section Meqbel et al. (2013, in review) Subduction system Active zone Cratonic stabile zone