Fig. 4

Results of the sensitivity tests for the C-2 anomaly. The green lines are the RMS misfit of the inverted model and the blue lines show the limit of the 95% confidence interval of the F-test. a Upper limits of the zone of replacement of anomalous C-2 resistivities versus RMS misfit. b Resistivities used to replace anomalous C-2 resistivities versus RMS misfit