期刊
GEOPHYSICAL RESEARCH LETTERS
卷 39, 期 -, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2011GL050177
关键词
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资金
- New Zealand Ministry of Science and Innovation
Broadband MT (magnetotelluric) data were recorded that form an array of measurements at the south-eastern margin of the TVZ (Taupo Volcanic Zone), in the central North Island of New Zealand. These array data are used to investigate mechanisms by which the TVZ's extraordinarily high heat flux is transported to the surface. Taken together with seismological data, these MT data show compelling evidence that support a model of hydrothermal convection within the brittle (upper similar to 6-7 km) part of the crust. Both 2-D and 3-D inversion models of these MT data show vertical low-resistivity zones that connect surface geothermal fields to an inferred magmatic heat source that lies below the brittle-ductile transition. Citation: Bertrand, E. A., et al. (2012), Magnetotelluric imaging of upper-crustal convection plumes beneath the Taupo Volcanic Zone, New Zealand, Geophys. Res. Lett., 39, L02304, doi: 10.1029/2011GL050177.
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