These studies also concluded that the sill was emplaced in a position nearly identical to its current one ( 10-to-15-degree dip ) ; this is further confirmed by the still-vertical orientation of the columnar jointing .
These studies also concluded that the sill was in a position nearly identical to its current one ( 10-to-15-degree dip ) ; this is further confirmed by the still-vertical orientation of the columnar jointing .