Figure F149. Zijderveld diagrams (Zijderveld, 1967) showing the results of AF demagnetization for diabase sills. (A) Sample 210-1276A-88R-4, 60 cm, from the upper sill and (B) Sample 210-1276A-99R-1, 126 cm, from the lower sill. Solid squares = projection of the magnetization vector endpoint on the horizontal plane, open squares = projection of the magnetization vector endpoints on the vertical plane. NRM = natural remanent magnetization.

Figure F149. Zijderveld diagrams (Zijderveld, 1967) showing the results of AF demagnetization for diabase sills. (A) Sample 210-1276A-88R-4, 60 cm, from the upper sill and (B) Sample 210-1276A-99R-1, 126 cm, from the lower sill. Solid squares = projection of the magnetization vector endpoint on the horizontal plane, open squares = projection of the magnetization vector endpoints on the vertical plane. NRM = natural remanent magnetization.