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Gravity Survey on the Mizuho Plateau, East Antarctica: SEAL Seismic Exploration in 2001-2002

Shigeru Toda, Hiroki Miyamachi, Masaki Kanao, Takeshi Matsushima, Masamitsu Takada, Atsushi Watanabe, Mikiya Yamashita
2014 International journal of geosciences  

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A gravity survey on Mizuho Plateau was carried out in austral summer of 2001-2002 by the 43 rd Japanese Antarctic Research Expedition (JARE-43), as one of the geophysical measurements of deep seismic exploration. Gravity measurements were conducted at 151 points in approximately 1 km interval along the 150 km profile. Considering the gravity effect from the ice-sheet, Free-air and Bouguer anomalies were calculated by using precise GPS locations. Furrowed and basin-like negative Free-air
more » ... s were observed in middle and northern parts of the profile. Bouguer anomalies were calculated by two bedrock elevation data obtained from seismic refraction and radio-echo sounding. High resolution model for bedrock elevation by radio-echo sounding was applied in determining the crustal thickness.
doi:10.4236/ijg.2014.52016 fatcat:fz7uhlolkvhfxc52p7rvhdffym
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Shigeru Toda, Hiroki Miyamachi, Masaki Kanao, Takeshi Matsushima, Masamitsu Takada, Atsushi Watanabe, Mikiya Yamashita. "Gravity Survey on the Mizuho Plateau, East Antarctica: SEAL Seismic Exploration in 2001-2002." International journal of geosciences 05.02 (2014) 146-155