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Earth, Planets and Space
Figure 3 | Earth, Planets and Space

Figure 3

From: Imaging the hydrothermal system beneath the Jigokudani valley, Tateyama volcano, Japan: implications for structures controlling repeated phreatic eruptions from an audio-frequency magnetotelluric survey

Figure 3

Spatial distribution of phase-tensor ellipses and real induction arrows. Spatial distribution of phase-tensor ellipses and real induction arrows in the same area as is shown in Figure 1. Phase-tensors and induction arrows at frequencies of (a) 9.4 Hz, (b) 97 Hz, and (c) 1,100 Hz are shown. The magnitude of the phase-tensor skew angle (|β|) increases as the color of the ellipses changes from warm to cold colors.

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