2004
DOI: 10.1111/j.1365-246x.2004.02156.x
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Structure and thermal regime beneath the South Pole region, East Antarctica, from magnetotelluric measurements

Abstract: S U M M A R YTen tensor magnetotelluric (MT) soundings have been acquired in a 54 km long profile across the South Pole area, East Antarctica. The MT transect was offset from the South Pole station ∼5 km and oriented 210 grid north, approximately normal to the Trans-Antarctic Mountains. Surveying around South Pole station was pursued for four main reasons. First, we sought to illuminate first-order structure and physico-chemical state (temperatures, fluids, melts) of the crust and upper mantle of this part of … Show more

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Cited by 40 publications
(69 citation statements)
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“…Electromagnetic measurements conducted for bed rock investigations Bhattacharya & Majumder 1987) have identified basement rocks below an ice cap 200Á400 m in thickness south of Schirmacher Oasis. A substantial and widespread sedimentary section with significant porosity or matured organic content has also been inferred below the ice sheet in previous regional MT studies in East Antarctica and has been correlated with similar results from seismic refraction data pertaining to the South Pole region (Wannamaker et al 2004). Sedimentary basins ca.…”
Section: Geological Implicationssupporting
confidence: 57%
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“…Electromagnetic measurements conducted for bed rock investigations Bhattacharya & Majumder 1987) have identified basement rocks below an ice cap 200Á400 m in thickness south of Schirmacher Oasis. A substantial and widespread sedimentary section with significant porosity or matured organic content has also been inferred below the ice sheet in previous regional MT studies in East Antarctica and has been correlated with similar results from seismic refraction data pertaining to the South Pole region (Wannamaker et al 2004). Sedimentary basins ca.…”
Section: Geological Implicationssupporting
confidence: 57%
“…Dimensionality analysis (Bibby et al 2005) can be utilized to estimate the nature of the subsurface (one-, two-or three-dimensional). Wannamaker et al (2004) noted previous studies showing that sounding results during both low-and high-activity times of the polar electrojet were very similar, implying that non-plane-wave source effects were not a serious issue. They further processed soundings by specifically removing outliers in the tipper, which also showed basic response stability, although that is not carried out here.…”
Section: Theoretical Backgroundmentioning
confidence: 76%
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