Figure 5. Reliable palaeomagnetic samples, with normal and reverse polarities, in the two antipodal hemispheres of the confidence circle and in the lithostratigraphic units of the Barranc de la Boella localities showing correlation lines.

A. Equal-area projection of palaeomagnetic directions and characteristic component of the Barranc de la Boella samples with stable behaviour. Solid circles are projections in the lower hemisphere (normal polarity) and white circles are projections in the upper hemisphere (reverse polarity). In spite of the data dispersion, two mean directions corresponding to the samples with normal and reverse polarities can be observed. Both mean directions are antipodal considering alpha-95 confidence circle (positive reversal test). B. Correlations between the Barranc de la Boella stratigraphic units based on magnetostratigraphic and lithostratigraphic measures and observations. The magnetic measures are represented with the latitudes of the virtual geomagnetic pole (VGP) corresponding to the palaeomagnetic directions of the characteristic component. At all four outcrops we were able to define two magnetozones. A significant gap without representation due to a lack of reliable palaeomagnetic record in the samples is especially clear in Pit 1 Locality unit II. Keys: 1, lithostratigraphic units; 2, archaeopalaeontological levels; 3, normal polarity; 4, reverse polarity; 5, no palaeomagnetic record.