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. 2022 Apr 22;20(6):2825–3069. doi: 10.1007/s10518-022-01357-4

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Fig. 55 — Contrasting geophysical measurements in the vicinity of the DCPP from 1989/1990 (left) and 2009 (right); upper: helicopter magnetics, lower: bathymetry (PG&E 2011)